mingw/include/tk.h

   1 /*
   2  * tk.h --
   3  *
   4  *      Declarations for Tk-related things that are visible outside of the Tk
   5  *      module itself.
   6  *
   7  * Copyright (c) 1989-1994 The Regents of the University of California.
   8  * Copyright (c) 1994 The Australian National University.
   9  * Copyright (c) 1994-1998 Sun Microsystems, Inc.
  10  * Copyright (c) 1998-2000 Ajuba Solutions.
  11  *
  12  * See the file "license.terms" for information on usage and redistribution of
  13  * this file, and for a DISCLAIMER OF ALL WARRANTIES.
  14  *
  15  * RCS: @(#) $Id: tk.h,v 1.109.2.7 2008/10/10 18:25:10 dgp Exp $
  16  */
  17
  18 #ifndef _TK
  19 #define _TK
  20
  21 #include <tcl.h>
  22 #if (TCL_MAJOR_VERSION != 8) || (TCL_MINOR_VERSION != 5)
  23 #       error Tk 8.5 must be compiled with tcl.h from Tcl 8.5
  24 #endif
  25
  26 /*
  27  * For C++ compilers, use extern "C"
  28  */
  29
  30 #ifdef __cplusplus
  31 extern "C" {
  32 #endif
  33
  34 /*
  35  * When version numbers change here, you must also go into the following files
  36  * and update the version numbers:
  37  *
  38  * library/tk.tcl       (2 LOC patch)
  39  * unix/configure.in    (2 LOC Major, 2 LOC minor, 1 LOC patch)
  40  * win/configure.in     (as above)
  41  * README               (sections 0 and 1)
  42  * macosx/Wish.xcode/project.pbxproj (not patchlevel) 1 LOC
  43  * macosx/Wish-Common.xcconfig (not patchlevel) 1 LOC
  44  * win/README           (not patchlevel)
  45  * unix/README          (not patchlevel)
  46  * unix/tk.spec         (1 LOC patch)
  47  * win/tcl.m4           (not patchlevel)
  48  *
  49  * You may also need to update some of these files when the numbers change for
  50  * the version of Tcl that this release of Tk is compiled against.
  51  */
  52
  53 #define TK_MAJOR_VERSION        8
  54 #define TK_MINOR_VERSION        5
  55 #define TK_RELEASE_LEVEL        TCL_FINAL_RELEASE
  56 #define TK_RELEASE_SERIAL       5
  57
  58 #define TK_VERSION              "8.5"
  59 #define TK_PATCH_LEVEL          "8.5.5"
  60
  61 /*
  62  * A special definition used to allow this header file to be included from
  63  * windows or mac resource files so that they can obtain version information.
  64  * RC_INVOKED is defined by default by the windows RC tool and manually set
  65  * for macintosh.
  66  *
  67  * Resource compilers don't like all the C stuff, like typedefs and procedure
  68  * declarations, that occur below, so block them out.
  69  */
  70
  71 #ifndef RC_INVOKED
  72
  73 #ifndef _XLIB_H
  74 #   if defined(MAC_OSX_TK)
  75 #       include <X11/Xlib.h>
  76 #       include <X11/X.h>
  77 #   else
  78 #       include <X11/Xlib.h>
  79 #   endif
  80 #endif
  81 #ifdef __STDC__
  82 #   include <stddef.h>
  83 #endif
  84
  85 #ifdef BUILD_tk
  86 # undef TCL_STORAGE_CLASS
  87 # define TCL_STORAGE_CLASS DLLEXPORT
  88 #endif
  89 \f
  90 /*
  91  * Decide whether or not to use input methods.
  92  */
  93
  94 #ifdef XNQueryInputStyle
  95 #define TK_USE_INPUT_METHODS
  96 #endif
  97
  98 /*
  99  * Dummy types that are used by clients:
 100  */
 101
 102 typedef struct Tk_BindingTable_ *Tk_BindingTable;
 103 typedef struct Tk_Canvas_ *Tk_Canvas;
 104 typedef struct Tk_Cursor_ *Tk_Cursor;
 105 typedef struct Tk_ErrorHandler_ *Tk_ErrorHandler;
 106 typedef struct Tk_Font_ *Tk_Font;
 107 typedef struct Tk_Image__ *Tk_Image;
 108 typedef struct Tk_ImageMaster_ *Tk_ImageMaster;
 109 typedef struct Tk_OptionTable_ *Tk_OptionTable;
 110 typedef struct Tk_PostscriptInfo_ *Tk_PostscriptInfo;
 111 typedef struct Tk_TextLayout_ *Tk_TextLayout;
 112 typedef struct Tk_Window_ *Tk_Window;
 113 typedef struct Tk_3DBorder_ *Tk_3DBorder;
 114 typedef struct Tk_Style_ *Tk_Style;
 115 typedef struct Tk_StyleEngine_ *Tk_StyleEngine;
 116 typedef struct Tk_StyledElement_ *Tk_StyledElement;
 117
 118 /*
 119  * Additional types exported to clients.
 120  */
 121
 122 typedef const char *Tk_Uid;
 123
 124 /*
 125  * The enum below defines the valid types for Tk configuration options as
 126  * implemented by Tk_InitOptions, Tk_SetOptions, etc.
 127  */
 128
 129 typedef enum {
 130     TK_OPTION_BOOLEAN,
 131     TK_OPTION_INT,
 132     TK_OPTION_DOUBLE,
 133     TK_OPTION_STRING,
 134     TK_OPTION_STRING_TABLE,
 135     TK_OPTION_COLOR,
 136     TK_OPTION_FONT,
 137     TK_OPTION_BITMAP,
 138     TK_OPTION_BORDER,
 139     TK_OPTION_RELIEF,
 140     TK_OPTION_CURSOR,
 141     TK_OPTION_JUSTIFY,
 142     TK_OPTION_ANCHOR,
 143     TK_OPTION_SYNONYM,
 144     TK_OPTION_PIXELS,
 145     TK_OPTION_WINDOW,
 146     TK_OPTION_END,
 147     TK_OPTION_CUSTOM,
 148     TK_OPTION_STYLE
 149 } Tk_OptionType;
 150
 151 /*
 152  * Structures of the following type are used by widgets to specify their
 153  * configuration options. Typically each widget has a static array of these
 154  * structures, where each element of the array describes a single
 155  * configuration option. The array is passed to Tk_CreateOptionTable.
 156  */
 157
 158 typedef struct Tk_OptionSpec {
 159     Tk_OptionType type;         /* Type of option, such as TK_OPTION_COLOR;
 160                                  * see definitions above. Last option in table
 161                                  * must have type TK_OPTION_END. */
 162     const char *optionName;     /* Name used to specify option in Tcl
 163                                  * commands. */
 164     const char *dbName;         /* Name for option in option database. */
 165     const char *dbClass;        /* Class for option in database. */
 166     const char *defValue;       /* Default value for option if not specified
 167                                  * in command line, the option database, or
 168                                  * the system. */
 169     int objOffset;              /* Where in record to store a Tcl_Obj * that
 170                                  * holds the value of this option, specified
 171                                  * as an offset in bytes from the start of the
 172                                  * record. Use the Tk_Offset macro to generate
 173                                  * values for this. -1 means don't store the
 174                                  * Tcl_Obj in the record. */
 175     int internalOffset;         /* Where in record to store the internal
 176                                  * representation of the value of this option,
 177                                  * such as an int or XColor *. This field is
 178                                  * specified as an offset in bytes from the
 179                                  * start of the record. Use the Tk_Offset
 180                                  * macro to generate values for it. -1 means
 181                                  * don't store the internal representation in
 182                                  * the record. */
 183     int flags;                  /* Any combination of the values defined
 184                                  * below. */
 185     ClientData clientData;      /* An alternate place to put option-specific
 186                                  * data. Used for the monochrome default value
 187                                  * for colors, etc. */
 188     int typeMask;               /* An arbitrary bit mask defined by the class
 189                                  * manager; typically bits correspond to
 190                                  * certain kinds of options such as all those
 191                                  * that require a redisplay when they change.
 192                                  * Tk_SetOptions returns the bit-wise OR of
 193                                  * the typeMasks of all options that were
 194                                  * changed. */
 195 } Tk_OptionSpec;
 196
 197 /*
 198  * Flag values for Tk_OptionSpec structures. These flags are shared by
 199  * Tk_ConfigSpec structures, so be sure to coordinate any changes carefully.
 200  */
 201
 202 #define TK_OPTION_NULL_OK               (1 << 0)
 203 #define TK_OPTION_DONT_SET_DEFAULT      (1 << 3)
 204
 205 /*
 206  * The following structure and function types are used by TK_OPTION_CUSTOM
 207  * options; the structure holds pointers to the functions needed by the Tk
 208  * option config code to handle a custom option.
 209  */
 210
 211 typedef int (Tk_CustomOptionSetProc) _ANSI_ARGS_((ClientData clientData,
 212         Tcl_Interp *interp, Tk_Window tkwin, Tcl_Obj **value, char *widgRec,
 213         int offset, char *saveInternalPtr, int flags));
 214 typedef Tcl_Obj *(Tk_CustomOptionGetProc) _ANSI_ARGS_((ClientData clientData,
 215         Tk_Window tkwin, char *widgRec, int offset));
 216 typedef void (Tk_CustomOptionRestoreProc) _ANSI_ARGS_((ClientData clientData,
 217         Tk_Window tkwin, char *internalPtr, char *saveInternalPtr));
 218 typedef void (Tk_CustomOptionFreeProc) _ANSI_ARGS_((ClientData clientData,
 219         Tk_Window tkwin, char *internalPtr));
 220
 221 typedef struct Tk_ObjCustomOption {
 222     const char *name; /* Name of the custom option. */
 223     Tk_CustomOptionSetProc *setProc;
 224                                 /* Function to use to set a record's option
 225                                  * value from a Tcl_Obj */
 226     Tk_CustomOptionGetProc *getProc;
 227                                 /* Function to use to get a Tcl_Obj
 228                                  * representation from an internal
 229                                  * representation of an option. */
 230     Tk_CustomOptionRestoreProc *restoreProc;
 231                                 /* Function to use to restore a saved value
 232                                  * for the internal representation. */
 233     Tk_CustomOptionFreeProc *freeProc;
 234                                 /* Function to use to free the internal
 235                                  * representation of an option. */
 236     ClientData clientData;      /* Arbitrary one-word value passed to the
 237                                  * handling procs. */
 238 } Tk_ObjCustomOption;
 239
 240 /*
 241  * Macro to use to fill in "offset" fields of the Tk_OptionSpec structure.
 242  * Computes number of bytes from beginning of structure to a given field.
 243  */
 244
 245 #ifdef offsetof
 246 #define Tk_Offset(type, field) ((int) offsetof(type, field))
 247 #else
 248 #define Tk_Offset(type, field) ((int) ((char *) &((type *) 0)->field))
 249 #endif
 250
 251 /*
 252  * The following two structures are used for error handling. When config
 253  * options are being modified, the old values are saved in a Tk_SavedOptions
 254  * structure. If an error occurs, then the contents of the structure can be
 255  * used to restore all of the old values. The contents of this structure are
 256  * for the private use Tk. No-one outside Tk should ever read or write any of
 257  * the fields of these structures.
 258  */
 259
 260 typedef struct Tk_SavedOption {
 261     struct TkOption *optionPtr; /* Points to information that describes the
 262                                  * option. */
 263     Tcl_Obj *valuePtr;          /* The old value of the option, in the form of
 264                                  * a Tcl object; may be NULL if the value was
 265                                  * not saved as an object. */
 266     double internalForm;        /* The old value of the option, in some
 267                                  * internal representation such as an int or
 268                                  * (XColor *). Valid only if the field
 269                                  * optionPtr->specPtr->objOffset is < 0. The
 270                                  * space must be large enough to accommodate a
 271                                  * double, a long, or a pointer; right now it
 272                                  * looks like a double (i.e., 8 bytes) is big
 273                                  * enough. Also, using a double guarantees
 274                                  * that the field is properly aligned for
 275                                  * storing large values. */
 276 } Tk_SavedOption;
 277
 278 #ifdef TCL_MEM_DEBUG
 279 #   define TK_NUM_SAVED_OPTIONS 2
 280 #else
 281 #   define TK_NUM_SAVED_OPTIONS 20
 282 #endif
 283
 284 typedef struct Tk_SavedOptions {
 285     char *recordPtr;            /* The data structure in which to restore
 286                                  * configuration options. */
 287     Tk_Window tkwin;            /* Window associated with recordPtr; needed to
 288                                  * restore certain options. */
 289     int numItems;               /* The number of valid items in items field. */
 290     Tk_SavedOption items[TK_NUM_SAVED_OPTIONS];
 291                                 /* Items used to hold old values. */
 292     struct Tk_SavedOptions *nextPtr;
 293                                 /* Points to next structure in list; needed if
 294                                  * too many options changed to hold all the
 295                                  * old values in a single structure. NULL
 296                                  * means no more structures. */
 297 } Tk_SavedOptions;
 298
 299 /*
 300  * Structure used to describe application-specific configuration options:
 301  * indicates procedures to call to parse an option and to return a text string
 302  * describing an option. THESE ARE DEPRECATED; PLEASE USE THE NEW STRUCTURES
 303  * LISTED ABOVE.
 304  */
 305
 306 /*
 307  * This is a temporary flag used while tkObjConfig and new widgets are in
 308  * development.
 309  */
 310
 311 #ifndef __NO_OLD_CONFIG
 312
 313 typedef int (Tk_OptionParseProc) _ANSI_ARGS_((ClientData clientData,
 314         Tcl_Interp *interp, Tk_Window tkwin, CONST84 char *value, char *widgRec,
 315         int offset));
 316 typedef char *(Tk_OptionPrintProc) _ANSI_ARGS_((ClientData clientData,
 317         Tk_Window tkwin, char *widgRec, int offset,
 318         Tcl_FreeProc **freeProcPtr));
 319
 320 typedef struct Tk_CustomOption {
 321     Tk_OptionParseProc *parseProc;
 322                                 /* Procedure to call to parse an option and
 323                                  * store it in converted form. */
 324     Tk_OptionPrintProc *printProc;
 325                                 /* Procedure to return a printable string
 326                                  * describing an existing option. */
 327     ClientData clientData;      /* Arbitrary one-word value used by option
 328                                  * parser: passed to parseProc and
 329                                  * printProc. */
 330 } Tk_CustomOption;
 331
 332 /*
 333  * Structure used to specify information for Tk_ConfigureWidget. Each
 334  * structure gives complete information for one option, including how the
 335  * option is specified on the command line, where it appears in the option
 336  * database, etc.
 337  */
 338
 339 typedef struct Tk_ConfigSpec {
 340     int type;                   /* Type of option, such as TK_CONFIG_COLOR;
 341                                  * see definitions below. Last option in table
 342                                  * must have type TK_CONFIG_END. */
 343     char *argvName;             /* Switch used to specify option in argv. NULL
 344                                  * means this spec is part of a group. */
 345     Tk_Uid dbName;              /* Name for option in option database. */
 346     Tk_Uid dbClass;             /* Class for option in database. */
 347     Tk_Uid defValue;            /* Default value for option if not specified
 348                                  * in command line or database. */
 349     int offset;                 /* Where in widget record to store value; use
 350                                  * Tk_Offset macro to generate values for
 351                                  * this. */
 352     int specFlags;              /* Any combination of the values defined
 353                                  * below; other bits are used internally by
 354                                  * tkConfig.c. */
 355     Tk_CustomOption *customPtr; /* If type is TK_CONFIG_CUSTOM then this is a
 356                                  * pointer to info about how to parse and
 357                                  * print the option. Otherwise it is
 358                                  * irrelevant. */
 359 } Tk_ConfigSpec;
 360
 361 /*
 362  * Type values for Tk_ConfigSpec structures. See the user documentation for
 363  * details.
 364  */
 365
 366 typedef enum {
 367     TK_CONFIG_BOOLEAN, TK_CONFIG_INT, TK_CONFIG_DOUBLE, TK_CONFIG_STRING,
 368     TK_CONFIG_UID, TK_CONFIG_COLOR, TK_CONFIG_FONT, TK_CONFIG_BITMAP,
 369     TK_CONFIG_BORDER, TK_CONFIG_RELIEF, TK_CONFIG_CURSOR,
 370     TK_CONFIG_ACTIVE_CURSOR, TK_CONFIG_JUSTIFY, TK_CONFIG_ANCHOR,
 371     TK_CONFIG_SYNONYM, TK_CONFIG_CAP_STYLE, TK_CONFIG_JOIN_STYLE,
 372     TK_CONFIG_PIXELS, TK_CONFIG_MM, TK_CONFIG_WINDOW, TK_CONFIG_CUSTOM,
 373     TK_CONFIG_END
 374 } Tk_ConfigTypes;
 375
 376 /*
 377  * Possible values for flags argument to Tk_ConfigureWidget:
 378  */
 379
 380 #define TK_CONFIG_ARGV_ONLY     1
 381 #define TK_CONFIG_OBJS          0x80
 382
 383 /*
 384  * Possible flag values for Tk_ConfigSpec structures. Any bits at or above
 385  * TK_CONFIG_USER_BIT may be used by clients for selecting certain entries.
 386  * Before changing any values here, coordinate with tkOldConfig.c
 387  * (internal-use-only flags are defined there).
 388  */
 389
 390 #define TK_CONFIG_NULL_OK               (1 << 0)
 391 #define TK_CONFIG_COLOR_ONLY            (1 << 1)
 392 #define TK_CONFIG_MONO_ONLY             (1 << 2)
 393 #define TK_CONFIG_DONT_SET_DEFAULT      (1 << 3)
 394 #define TK_CONFIG_OPTION_SPECIFIED      (1 << 4)
 395 #define TK_CONFIG_USER_BIT              0x100
 396 #endif /* __NO_OLD_CONFIG */
 397
 398 /*
 399  * Structure used to specify how to handle argv options.
 400  */
 401
 402 typedef struct {
 403     char *key;                  /* The key string that flags the option in the
 404                                  * argv array. */
 405     int type;                   /* Indicates option type; see below. */
 406     char *src;                  /* Value to be used in setting dst; usage
 407                                  * depends on type. */
 408     char *dst;                  /* Address of value to be modified; usage
 409                                  * depends on type. */
 410     char *help;                 /* Documentation message describing this
 411                                  * option. */
 412 } Tk_ArgvInfo;
 413
 414 /*
 415  * Legal values for the type field of a Tk_ArgvInfo: see the user
 416  * documentation for details.
 417  */
 418
 419 #define TK_ARGV_CONSTANT                15
 420 #define TK_ARGV_INT                     16
 421 #define TK_ARGV_STRING                  17
 422 #define TK_ARGV_UID                     18
 423 #define TK_ARGV_REST                    19
 424 #define TK_ARGV_FLOAT                   20
 425 #define TK_ARGV_FUNC                    21
 426 #define TK_ARGV_GENFUNC                 22
 427 #define TK_ARGV_HELP                    23
 428 #define TK_ARGV_CONST_OPTION            24
 429 #define TK_ARGV_OPTION_VALUE            25
 430 #define TK_ARGV_OPTION_NAME_VALUE       26
 431 #define TK_ARGV_END                     27
 432
 433 /*
 434  * Flag bits for passing to Tk_ParseArgv:
 435  */
 436
 437 #define TK_ARGV_NO_DEFAULTS             0x1
 438 #define TK_ARGV_NO_LEFTOVERS            0x2
 439 #define TK_ARGV_NO_ABBREV               0x4
 440 #define TK_ARGV_DONT_SKIP_FIRST_ARG     0x8
 441
 442 /*
 443  * Enumerated type for describing actions to be taken in response to a
 444  * restrictProc established by Tk_RestrictEvents.
 445  */
 446
 447 typedef enum {
 448     TK_DEFER_EVENT, TK_PROCESS_EVENT, TK_DISCARD_EVENT
 449 } Tk_RestrictAction;
 450
 451 /*
 452  * Priority levels to pass to Tk_AddOption:
 453  */
 454
 455 #define TK_WIDGET_DEFAULT_PRIO  20
 456 #define TK_STARTUP_FILE_PRIO    40
 457 #define TK_USER_DEFAULT_PRIO    60
 458 #define TK_INTERACTIVE_PRIO     80
 459 #define TK_MAX_PRIO             100
 460
 461 /*
 462  * Relief values returned by Tk_GetRelief:
 463  */
 464
 465 #define TK_RELIEF_NULL          -1
 466 #define TK_RELIEF_FLAT          0
 467 #define TK_RELIEF_GROOVE        1
 468 #define TK_RELIEF_RAISED        2
 469 #define TK_RELIEF_RIDGE         3
 470 #define TK_RELIEF_SOLID         4
 471 #define TK_RELIEF_SUNKEN        5
 472
 473 /*
 474  * "Which" argument values for Tk_3DBorderGC:
 475  */
 476
 477 #define TK_3D_FLAT_GC           1
 478 #define TK_3D_LIGHT_GC          2
 479 #define TK_3D_DARK_GC           3
 480
 481 /*
 482  * Special EnterNotify/LeaveNotify "mode" for use in events generated by
 483  * tkShare.c. Pick a high enough value that it's unlikely to conflict with
 484  * existing values (like NotifyNormal) or any new values defined in the
 485  * future.
 486  */
 487
 488 #define TK_NOTIFY_SHARE         20
 489
 490 /*
 491  * Enumerated type for describing a point by which to anchor something:
 492  */
 493
 494 typedef enum {
 495     TK_ANCHOR_N, TK_ANCHOR_NE, TK_ANCHOR_E, TK_ANCHOR_SE,
 496     TK_ANCHOR_S, TK_ANCHOR_SW, TK_ANCHOR_W, TK_ANCHOR_NW,
 497     TK_ANCHOR_CENTER
 498 } Tk_Anchor;
 499
 500 /*
 501  * Enumerated type for describing a style of justification:
 502  */
 503
 504 typedef enum {
 505     TK_JUSTIFY_LEFT, TK_JUSTIFY_RIGHT, TK_JUSTIFY_CENTER
 506 } Tk_Justify;
 507
 508 /*
 509  * The following structure is used by Tk_GetFontMetrics() to return
 510  * information about the properties of a Tk_Font.
 511  */
 512
 513 typedef struct Tk_FontMetrics {
 514     int ascent;                 /* The amount in pixels that the tallest
 515                                  * letter sticks up above the baseline, plus
 516                                  * any extra blank space added by the designer
 517                                  * of the font. */
 518     int descent;                /* The largest amount in pixels that any
 519                                  * letter sticks below the baseline, plus any
 520                                  * extra blank space added by the designer of
 521                                  * the font. */
 522     int linespace;              /* The sum of the ascent and descent. How far
 523                                  * apart two lines of text in the same font
 524                                  * should be placed so that none of the
 525                                  * characters in one line overlap any of the
 526                                  * characters in the other line. */
 527 } Tk_FontMetrics;
 528
 529 /*
 530  * Flags passed to Tk_MeasureChars:
 531  */
 532
 533 #define TK_WHOLE_WORDS          1
 534 #define TK_AT_LEAST_ONE         2
 535 #define TK_PARTIAL_OK           4
 536
 537 /*
 538  * Flags passed to Tk_ComputeTextLayout:
 539  */
 540
 541 #define TK_IGNORE_TABS          8
 542 #define TK_IGNORE_NEWLINES      16
 543
 544 /*
 545  * Widget class procedures used to implement platform specific widget
 546  * behavior.
 547  */
 548
 549 typedef Window (Tk_ClassCreateProc) _ANSI_ARGS_((Tk_Window tkwin,
 550         Window parent, ClientData instanceData));
 551 typedef void (Tk_ClassWorldChangedProc) _ANSI_ARGS_((ClientData instanceData));
 552 typedef void (Tk_ClassModalProc) _ANSI_ARGS_((Tk_Window tkwin,
 553         XEvent *eventPtr));
 554
 555 typedef struct Tk_ClassProcs {
 556     unsigned int size;
 557     Tk_ClassWorldChangedProc *worldChangedProc;
 558                                 /* Procedure to invoke when the widget needs
 559                                  * to respond in some way to a change in the
 560                                  * world (font changes, etc.) */
 561     Tk_ClassCreateProc *createProc;
 562                                 /* Procedure to invoke when the platform-
 563                                  * dependent window needs to be created. */
 564     Tk_ClassModalProc *modalProc;
 565                                 /* Procedure to invoke after all bindings on a
 566                                  * widget have been triggered in order to
 567                                  * handle a modal loop. */
 568 } Tk_ClassProcs;
 569
 570 /*
 571  * Simple accessor for Tk_ClassProcs structure. Checks that the structure is
 572  * not NULL, then checks the size field and returns either the requested
 573  * field, if present, or NULL if the structure is too small to have the field
 574  * (or NULL if the structure is NULL).
 575  *
 576  * A more general version of this function may be useful if other
 577  * size-versioned structure pop up in the future:
 578  *
 579  *      #define Tk_GetField(name, who, which) \
 580  *          (((who) == NULL) ? NULL :
 581  *          (((who)->size <= Tk_Offset(name, which)) ? NULL :(name)->which))
 582  */
 583
 584 #define Tk_GetClassProc(procs, which) \
 585     (((procs) == NULL) ? NULL : \
 586     (((procs)->size <= Tk_Offset(Tk_ClassProcs, which)) ? NULL:(procs)->which))
 587
 588 /*
 589  * Each geometry manager (the packer, the placer, etc.) is represented by a
 590  * structure of the following form, which indicates procedures to invoke in
 591  * the geometry manager to carry out certain functions.
 592  */
 593
 594 typedef void (Tk_GeomRequestProc) _ANSI_ARGS_((ClientData clientData,
 595         Tk_Window tkwin));
 596 typedef void (Tk_GeomLostSlaveProc) _ANSI_ARGS_((ClientData clientData,
 597         Tk_Window tkwin));
 598
 599 typedef struct Tk_GeomMgr {
 600     const char *name;           /* Name of the geometry manager (command used
 601                                  * to invoke it, or name of widget class that
 602                                  * allows embedded widgets). */
 603     Tk_GeomRequestProc *requestProc;
 604                                 /* Procedure to invoke when a slave's
 605                                  * requested geometry changes. */
 606     Tk_GeomLostSlaveProc *lostSlaveProc;
 607                                 /* Procedure to invoke when a slave is taken
 608                                  * away from one geometry manager by another.
 609                                  * NULL means geometry manager doesn't care
 610                                  * when slaves are lost. */
 611 } Tk_GeomMgr;
 612
 613 /*
 614  * Result values returned by Tk_GetScrollInfo:
 615  */
 616
 617 #define TK_SCROLL_MOVETO        1
 618 #define TK_SCROLL_PAGES         2
 619 #define TK_SCROLL_UNITS         3
 620 #define TK_SCROLL_ERROR         4
 621
 622 /*
 623  *---------------------------------------------------------------------------
 624  *
 625  * Extensions to the X event set
 626  *
 627  *---------------------------------------------------------------------------
 628  */
 629
 630 #define VirtualEvent        (MappingNotify + 1)
 631 #define ActivateNotify      (MappingNotify + 2)
 632 #define DeactivateNotify    (MappingNotify + 3)
 633 #define MouseWheelEvent     (MappingNotify + 4)
 634 #define TK_LASTEVENT        (MappingNotify + 5)
 635
 636 #define MouseWheelMask      (1L << 28)
 637 #define ActivateMask        (1L << 29)
 638 #define VirtualEventMask    (1L << 30)
 639
 640 /*
 641  * A virtual event shares most of its fields with the XKeyEvent and
 642  * XButtonEvent structures. 99% of the time a virtual event will be an
 643  * abstraction of a key or button event, so this structure provides the most
 644  * information to the user. The only difference is the changing of the detail
 645  * field for a virtual event so that it holds the name of the virtual event
 646  * being triggered.
 647  *
 648  * When using this structure, you should ensure that you zero out all the
 649  * fields first using memset() or bzero().
 650  */
 651
 652 typedef struct {
 653     int type;
 654     unsigned long serial;       /* # of last request processed by server. */
 655     Bool send_event;            /* True if this came from a SendEvent
 656                                  * request. */
 657     Display *display;           /* Display the event was read from. */
 658     Window event;               /* Window on which event was requested. */
 659     Window root;                /* Root window that the event occured on. */
 660     Window subwindow;           /* Child window. */
 661     Time time;                  /* Milliseconds. */
 662     int x, y;                   /* Pointer x, y coordinates in event
 663                                  * window. */
 664     int x_root, y_root;         /* Coordinates relative to root. */
 665     unsigned int state;         /* Key or button mask */
 666     Tk_Uid name;                /* Name of virtual event. */
 667     Bool same_screen;           /* Same screen flag. */
 668     Tcl_Obj *user_data;         /* Application-specific data reference; Tk
 669                                  * will decrement the reference count *once*
 670                                  * when it has finished processing the
 671                                  * event. */
 672 } XVirtualEvent;
 673
 674 typedef struct {
 675     int type;
 676     unsigned long serial;       /* # of last request processed by server. */
 677     Bool send_event;            /* True if this came from a SendEvent
 678                                  * request. */
 679     Display *display;           /* Display the event was read from. */
 680     Window window;              /* Window in which event occurred. */
 681 } XActivateDeactivateEvent;
 682 typedef XActivateDeactivateEvent XActivateEvent;
 683 typedef XActivateDeactivateEvent XDeactivateEvent;
 684 \f
 685 /*
 686  *--------------------------------------------------------------
 687  *
 688  * Macros for querying Tk_Window structures. See the manual entries for
 689  * documentation.
 690  *
 691  *--------------------------------------------------------------
 692  */
 693
 694 #define Tk_Display(tkwin)       (((Tk_FakeWin *) (tkwin))->display)
 695 #define Tk_ScreenNumber(tkwin)  (((Tk_FakeWin *) (tkwin))->screenNum)
 696 #define Tk_Screen(tkwin) \
 697     (ScreenOfDisplay(Tk_Display(tkwin), Tk_ScreenNumber(tkwin)))
 698 #define Tk_Depth(tkwin)         (((Tk_FakeWin *) (tkwin))->depth)
 699 #define Tk_Visual(tkwin)        (((Tk_FakeWin *) (tkwin))->visual)
 700 #define Tk_WindowId(tkwin)      (((Tk_FakeWin *) (tkwin))->window)
 701 #define Tk_PathName(tkwin)      (((Tk_FakeWin *) (tkwin))->pathName)
 702 #define Tk_Name(tkwin)          (((Tk_FakeWin *) (tkwin))->nameUid)
 703 #define Tk_Class(tkwin)         (((Tk_FakeWin *) (tkwin))->classUid)
 704 #define Tk_X(tkwin)             (((Tk_FakeWin *) (tkwin))->changes.x)
 705 #define Tk_Y(tkwin)             (((Tk_FakeWin *) (tkwin))->changes.y)
 706 #define Tk_Width(tkwin)         (((Tk_FakeWin *) (tkwin))->changes.width)
 707 #define Tk_Height(tkwin) \
 708     (((Tk_FakeWin *) (tkwin))->changes.height)
 709 #define Tk_Changes(tkwin)       (&((Tk_FakeWin *) (tkwin))->changes)
 710 #define Tk_Attributes(tkwin)    (&((Tk_FakeWin *) (tkwin))->atts)
 711 #define Tk_IsEmbedded(tkwin) \
 712     (((Tk_FakeWin *) (tkwin))->flags & TK_EMBEDDED)
 713 #define Tk_IsContainer(tkwin) \
 714     (((Tk_FakeWin *) (tkwin))->flags & TK_CONTAINER)
 715 #define Tk_IsMapped(tkwin) \
 716     (((Tk_FakeWin *) (tkwin))->flags & TK_MAPPED)
 717 #define Tk_IsTopLevel(tkwin) \
 718     (((Tk_FakeWin *) (tkwin))->flags & TK_TOP_LEVEL)
 719 #define Tk_HasWrapper(tkwin) \
 720     (((Tk_FakeWin *) (tkwin))->flags & TK_HAS_WRAPPER)
 721 #define Tk_WinManaged(tkwin) \
 722     (((Tk_FakeWin *) (tkwin))->flags & TK_WIN_MANAGED)
 723 #define Tk_TopWinHierarchy(tkwin) \
 724     (((Tk_FakeWin *) (tkwin))->flags & TK_TOP_HIERARCHY)
 725 #define Tk_ReqWidth(tkwin)      (((Tk_FakeWin *) (tkwin))->reqWidth)
 726 #define Tk_ReqHeight(tkwin)     (((Tk_FakeWin *) (tkwin))->reqHeight)
 727 /* Tk_InternalBorderWidth is deprecated */
 728 #define Tk_InternalBorderWidth(tkwin) \
 729     (((Tk_FakeWin *) (tkwin))->internalBorderLeft)
 730 #define Tk_InternalBorderLeft(tkwin) \
 731     (((Tk_FakeWin *) (tkwin))->internalBorderLeft)
 732 #define Tk_InternalBorderRight(tkwin) \
 733     (((Tk_FakeWin *) (tkwin))->internalBorderRight)
 734 #define Tk_InternalBorderTop(tkwin) \
 735     (((Tk_FakeWin *) (tkwin))->internalBorderTop)
 736 #define Tk_InternalBorderBottom(tkwin) \
 737     (((Tk_FakeWin *) (tkwin))->internalBorderBottom)
 738 #define Tk_MinReqWidth(tkwin)   (((Tk_FakeWin *) (tkwin))->minReqWidth)
 739 #define Tk_MinReqHeight(tkwin)  (((Tk_FakeWin *) (tkwin))->minReqHeight)
 740 #define Tk_Parent(tkwin)        (((Tk_FakeWin *) (tkwin))->parentPtr)
 741 #define Tk_Colormap(tkwin)      (((Tk_FakeWin *) (tkwin))->atts.colormap)
 742
 743 /*
 744  * The structure below is needed by the macros above so that they can access
 745  * the fields of a Tk_Window. The fields not needed by the macros are declared
 746  * as "dummyX". The structure has its own type in order to prevent apps from
 747  * accessing Tk_Window fields except using official macros. WARNING!! The
 748  * structure definition must be kept consistent with the TkWindow structure in
 749  * tkInt.h. If you change one, then change the other. See the declaration in
 750  * tkInt.h for documentation on what the fields are used for internally.
 751  */
 752
 753 typedef struct Tk_FakeWin {
 754     Display *display;
 755     char *dummy1;               /* dispPtr */
 756     int screenNum;
 757     Visual *visual;
 758     int depth;
 759     Window window;
 760     char *dummy2;               /* childList */
 761     char *dummy3;               /* lastChildPtr */
 762     Tk_Window parentPtr;        /* parentPtr */
 763     char *dummy4;               /* nextPtr */
 764     char *dummy5;               /* mainPtr */
 765     char *pathName;
 766     Tk_Uid nameUid;
 767     Tk_Uid classUid;
 768     XWindowChanges changes;
 769     unsigned int dummy6;        /* dirtyChanges */
 770     XSetWindowAttributes atts;
 771     unsigned long dummy7;       /* dirtyAtts */
 772     unsigned int flags;
 773     char *dummy8;               /* handlerList */
 774 #ifdef TK_USE_INPUT_METHODS
 775     XIC dummy9;                 /* inputContext */
 776 #endif /* TK_USE_INPUT_METHODS */
 777     ClientData *dummy10;        /* tagPtr */
 778     int dummy11;                /* numTags */
 779     int dummy12;                /* optionLevel */
 780     char *dummy13;              /* selHandlerList */
 781     char *dummy14;              /* geomMgrPtr */
 782     ClientData dummy15;         /* geomData */
 783     int reqWidth, reqHeight;
 784     int internalBorderLeft;
 785     char *dummy16;              /* wmInfoPtr */
 786     char *dummy17;              /* classProcPtr */
 787     ClientData dummy18;         /* instanceData */
 788     char *dummy19;              /* privatePtr */
 789     int internalBorderRight;
 790     int internalBorderTop;
 791     int internalBorderBottom;
 792     int minReqWidth;
 793     int minReqHeight;
 794 } Tk_FakeWin;
 795
 796 /*
 797  * Flag values for TkWindow (and Tk_FakeWin) structures are:
 798  *
 799  * TK_MAPPED:                   1 means window is currently mapped,
 800  *                              0 means unmapped.
 801  * TK_TOP_LEVEL:                1 means this is a top-level widget.
 802  * TK_ALREADY_DEAD:             1 means the window is in the process of
 803  *                              being destroyed already.
 804  * TK_NEED_CONFIG_NOTIFY:       1 means that the window has been reconfigured
 805  *                              before it was made to exist. At the time of
 806  *                              making it exist a ConfigureNotify event needs
 807  *                              to be generated.
 808  * TK_GRAB_FLAG:                Used to manage grabs. See tkGrab.c for details
 809  * TK_CHECKED_IC:               1 means we've already tried to get an input
 810  *                              context for this window; if the ic field is
 811  *                              NULL it means that there isn't a context for
 812  *                              the field.
 813  * TK_DONT_DESTROY_WINDOW:      1 means that Tk_DestroyWindow should not
 814  *                              invoke XDestroyWindow to destroy this widget's
 815  *                              X window. The flag is set when the window has
 816  *                              already been destroyed elsewhere (e.g. by
 817  *                              another application) or when it will be
 818  *                              destroyed later (e.g. by destroying its parent)
 819  * TK_WM_COLORMAP_WINDOW:       1 means that this window has at some time
 820  *                              appeared in the WM_COLORMAP_WINDOWS property
 821  *                              for its toplevel, so we have to remove it from
 822  *                              that property if the window is deleted and the
 823  *                              toplevel isn't.
 824  * TK_EMBEDDED:                 1 means that this window (which must be a
 825  *                              toplevel) is not a free-standing window but
 826  *                              rather is embedded in some other application.
 827  * TK_CONTAINER:                1 means that this window is a container, and
 828  *                              that some other application (either in this
 829  *                              process or elsewhere) may be embedding itself
 830  *                              inside the window.
 831  * TK_BOTH_HALVES:              1 means that this window is used for
 832  *                              application embedding (either as container or
 833  *                              embedded application), and both the containing
 834  *                              and embedded halves are associated with
 835  *                              windows in this particular process.
 836  * TK_DEFER_MODAL:              1 means that this window has deferred a modal
 837  *                              loop until all of the bindings for the current
 838  *                              event have been invoked.
 839  * TK_WRAPPER:                  1 means that this window is the extra wrapper
 840  *                              window created around a toplevel to hold the
 841  *                              menubar under Unix. See tkUnixWm.c for more
 842  *                              information.
 843  * TK_REPARENTED:               1 means that this window has been reparented
 844  *                              so that as far as the window system is
 845  *                              concerned it isn't a child of its Tk parent.
 846  *                              Initially this is used only for special Unix
 847  *                              menubar windows.
 848  * TK_ANONYMOUS_WINDOW:         1 means that this window has no name, and is
 849  *                              thus not accessible from Tk.
 850  * TK_HAS_WRAPPER               1 means that this window has a wrapper window
 851  * TK_WIN_MANAGED               1 means that this window is a child of the root
 852  *                              window, and is managed by the window manager.
 853  * TK_TOP_HIERARCHY             1 means this window is at the top of a physical
 854  *                              window hierarchy within this process, i.e. the
 855  *                              window's parent either doesn't exist or is not
 856  *                              owned by this Tk application.
 857  * TK_PROP_PROPCHANGE           1 means that PropertyNotify events in the
 858  *                              window's children should propagate up to this
 859  *                              window.
 860  */
 861
 862 #define TK_MAPPED               1
 863 #define TK_TOP_LEVEL            2
 864 #define TK_ALREADY_DEAD         4
 865 #define TK_NEED_CONFIG_NOTIFY   8
 866 #define TK_GRAB_FLAG            0x10
 867 #define TK_CHECKED_IC           0x20
 868 #define TK_DONT_DESTROY_WINDOW  0x40
 869 #define TK_WM_COLORMAP_WINDOW   0x80
 870 #define TK_EMBEDDED             0x100
 871 #define TK_CONTAINER            0x200
 872 #define TK_BOTH_HALVES          0x400
 873 #define TK_DEFER_MODAL          0x800
 874 #define TK_WRAPPER              0x1000
 875 #define TK_REPARENTED           0x2000
 876 #define TK_ANONYMOUS_WINDOW     0x4000
 877 #define TK_HAS_WRAPPER          0x8000
 878 #define TK_WIN_MANAGED          0x10000
 879 #define TK_TOP_HIERARCHY        0x20000
 880 #define TK_PROP_PROPCHANGE      0x40000
 881 \f
 882 /*
 883  *--------------------------------------------------------------
 884  *
 885  * Procedure prototypes and structures used for defining new canvas items:
 886  *
 887  *--------------------------------------------------------------
 888  */
 889
 890 typedef enum {
 891     TK_STATE_NULL = -1, TK_STATE_ACTIVE, TK_STATE_DISABLED,
 892     TK_STATE_NORMAL, TK_STATE_HIDDEN
 893 } Tk_State;
 894
 895 typedef struct Tk_SmoothMethod {
 896     char *name;
 897     int (*coordProc) _ANSI_ARGS_((Tk_Canvas canvas,
 898                 double *pointPtr, int numPoints, int numSteps,
 899                 XPoint xPoints[], double dblPoints[]));
 900     void (*postscriptProc) _ANSI_ARGS_((Tcl_Interp *interp,
 901                 Tk_Canvas canvas, double *coordPtr,
 902                 int numPoints, int numSteps));
 903 } Tk_SmoothMethod;
 904
 905 /*
 906  * For each item in a canvas widget there exists one record with the following
 907  * structure. Each actual item is represented by a record with the following
 908  * stuff at its beginning, plus additional type-specific stuff after that.
 909  */
 910
 911 #define TK_TAG_SPACE 3
 912
 913 typedef struct Tk_Item {
 914     int id;                     /* Unique identifier for this item (also
 915                                  * serves as first tag for item). */
 916     struct Tk_Item *nextPtr;    /* Next in display list of all items in this
 917                                  * canvas. Later items in list are drawn on
 918                                  * top of earlier ones. */
 919     Tk_Uid staticTagSpace[TK_TAG_SPACE];
 920                                 /* Built-in space for limited # of tags. */
 921     Tk_Uid *tagPtr;             /* Pointer to array of tags. Usually points to
 922                                  * staticTagSpace, but may point to malloc-ed
 923                                  * space if there are lots of tags. */
 924     int tagSpace;               /* Total amount of tag space available at
 925                                  * tagPtr. */
 926     int numTags;                /* Number of tag slots actually used at
 927                                  * *tagPtr. */
 928     struct Tk_ItemType *typePtr;/* Table of procedures that implement this
 929                                  * type of item. */
 930     int x1, y1, x2, y2;         /* Bounding box for item, in integer canvas
 931                                  * units. Set by item-specific code and
 932                                  * guaranteed to contain every pixel drawn in
 933                                  * item. Item area includes x1 and y1 but not
 934                                  * x2 and y2. */
 935     struct Tk_Item *prevPtr;    /* Previous in display list of all items in
 936                                  * this canvas. Later items in list are drawn
 937                                  * just below earlier ones. */
 938     Tk_State state;             /* State of item. */
 939     char *reserved1;            /* reserved for future use */
 940     int redraw_flags;           /* Some flags used in the canvas */
 941
 942     /*
 943      *------------------------------------------------------------------
 944      * Starting here is additional type-specific stuff; see the declarations
 945      * for individual types to see what is part of each type. The actual space
 946      * below is determined by the "itemInfoSize" of the type's Tk_ItemType
 947      * record.
 948      *------------------------------------------------------------------
 949      */
 950 } Tk_Item;
 951
 952 /*
 953  * Flag bits for canvases (redraw_flags):
 954  *
 955  * TK_ITEM_STATE_DEPENDANT -    1 means that object needs to be redrawn if the
 956  *                              canvas state changes.
 957  * TK_ITEM_DONT_REDRAW -        1 means that the object redraw is already been
 958  *                              prepared, so the general canvas code doesn't
 959  *                              need to do that any more.
 960  */
 961
 962 #define TK_ITEM_STATE_DEPENDANT         1
 963 #define TK_ITEM_DONT_REDRAW             2
 964
 965 /*
 966  * Records of the following type are used to describe a type of item (e.g.
 967  * lines, circles, etc.) that can form part of a canvas widget.
 968  */
 969
 970 #ifdef USE_OLD_CANVAS
 971 typedef int     Tk_ItemCreateProc _ANSI_ARGS_((Tcl_Interp *interp,
 972                     Tk_Canvas canvas, Tk_Item *itemPtr, int argc,
 973                     char **argv));
 974 typedef int     Tk_ItemConfigureProc _ANSI_ARGS_((Tcl_Interp *interp,
 975                     Tk_Canvas canvas, Tk_Item *itemPtr, int argc,
 976                     char **argv, int flags));
 977 typedef int     Tk_ItemCoordProc _ANSI_ARGS_((Tcl_Interp *interp,
 978                     Tk_Canvas canvas, Tk_Item *itemPtr, int argc,
 979                     char **argv));
 980 #else
 981 typedef int     Tk_ItemCreateProc _ANSI_ARGS_((Tcl_Interp *interp,
 982                     Tk_Canvas canvas, Tk_Item *itemPtr, int argc,
 983                     Tcl_Obj *const objv[]));
 984 typedef int     Tk_ItemConfigureProc _ANSI_ARGS_((Tcl_Interp *interp,
 985                     Tk_Canvas canvas, Tk_Item *itemPtr, int argc,
 986                     Tcl_Obj *const objv[], int flags));
 987 typedef int     Tk_ItemCoordProc _ANSI_ARGS_((Tcl_Interp *interp,
 988                     Tk_Canvas canvas, Tk_Item *itemPtr, int argc,
 989                     Tcl_Obj *const argv[]));
 990 #endif
 991 typedef void    Tk_ItemDeleteProc _ANSI_ARGS_((Tk_Canvas canvas,
 992                     Tk_Item *itemPtr, Display *display));
 993 typedef void    Tk_ItemDisplayProc _ANSI_ARGS_((Tk_Canvas canvas,
 994                     Tk_Item *itemPtr, Display *display, Drawable dst,
 995                     int x, int y, int width, int height));
 996 typedef double  Tk_ItemPointProc _ANSI_ARGS_((Tk_Canvas canvas,
 997                     Tk_Item *itemPtr, double *pointPtr));
 998 typedef int     Tk_ItemAreaProc _ANSI_ARGS_((Tk_Canvas canvas,
 999                     Tk_Item *itemPtr, double *rectPtr));
1000 typedef int     Tk_ItemPostscriptProc _ANSI_ARGS_((Tcl_Interp *interp,
1001                     Tk_Canvas canvas, Tk_Item *itemPtr, int prepass));
1002 typedef void    Tk_ItemScaleProc _ANSI_ARGS_((Tk_Canvas canvas,
1003                     Tk_Item *itemPtr, double originX, double originY,
1004                     double scaleX, double scaleY));
1005 typedef void    Tk_ItemTranslateProc _ANSI_ARGS_((Tk_Canvas canvas,
1006                     Tk_Item *itemPtr, double deltaX, double deltaY));
1007 typedef int     Tk_ItemIndexProc _ANSI_ARGS_((Tcl_Interp *interp,
1008                     Tk_Canvas canvas, Tk_Item *itemPtr, char *indexString,
1009                     int *indexPtr));
1010 typedef void    Tk_ItemCursorProc _ANSI_ARGS_((Tk_Canvas canvas,
1011                     Tk_Item *itemPtr, int index));
1012 typedef int     Tk_ItemSelectionProc _ANSI_ARGS_((Tk_Canvas canvas,
1013                     Tk_Item *itemPtr, int offset, char *buffer,
1014                     int maxBytes));
1015 typedef void    Tk_ItemInsertProc _ANSI_ARGS_((Tk_Canvas canvas,
1016                     Tk_Item *itemPtr, int beforeThis, char *string));
1017 typedef void    Tk_ItemDCharsProc _ANSI_ARGS_((Tk_Canvas canvas,
1018                     Tk_Item *itemPtr, int first, int last));
1019
1020 #ifndef __NO_OLD_CONFIG
1021
1022 typedef struct Tk_ItemType {
1023     char *name;                 /* The name of this type of item, such as
1024                                  * "line". */
1025     int itemSize;               /* Total amount of space needed for item's
1026                                  * record. */
1027     Tk_ItemCreateProc *createProc;
1028                                 /* Procedure to create a new item of this
1029                                  * type. */
1030     Tk_ConfigSpec *configSpecs; /* Pointer to array of configuration specs for
1031                                  * this type. Used for returning configuration
1032                                  * info. */
1033     Tk_ItemConfigureProc *configProc;
1034                                 /* Procedure to call to change configuration
1035                                  * options. */
1036     Tk_ItemCoordProc *coordProc;/* Procedure to call to get and set the item's
1037                                  * coordinates. */
1038     Tk_ItemDeleteProc *deleteProc;
1039                                 /* Procedure to delete existing item of this
1040                                  * type. */
1041     Tk_ItemDisplayProc *displayProc;
1042                                 /* Procedure to display items of this type. */
1043     int alwaysRedraw;           /* Non-zero means displayProc should be called
1044                                  * even when the item has been moved
1045                                  * off-screen. */
1046     Tk_ItemPointProc *pointProc;/* Computes distance from item to a given
1047                                  * point. */
1048     Tk_ItemAreaProc *areaProc;  /* Computes whether item is inside, outside,
1049                                  * or overlapping an area. */
1050     Tk_ItemPostscriptProc *postscriptProc;
1051                                 /* Procedure to write a Postscript description
1052                                  * for items of this type. */
1053     Tk_ItemScaleProc *scaleProc;/* Procedure to rescale items of this type. */
1054     Tk_ItemTranslateProc *translateProc;
1055                                 /* Procedure to translate items of this
1056                                  * type. */
1057     Tk_ItemIndexProc *indexProc;/* Procedure to determine index of indicated
1058                                  * character. NULL if item doesn't support
1059                                  * indexing. */
1060     Tk_ItemCursorProc *icursorProc;
1061                                 /* Procedure to set insert cursor posn to just
1062                                  * before a given position. */
1063     Tk_ItemSelectionProc *selectionProc;
1064                                 /* Procedure to return selection (in STRING
1065                                  * format) when it is in this item. */
1066     Tk_ItemInsertProc *insertProc;
1067                                 /* Procedure to insert something into an
1068                                  * item. */
1069     Tk_ItemDCharsProc *dCharsProc;
1070                                 /* Procedure to delete characters from an
1071                                  * item. */
1072     struct Tk_ItemType *nextPtr;/* Used to link types together into a list. */
1073     char *reserved1;            /* Reserved for future extension. */
1074     int reserved2;              /* Carefully compatible with */
1075     char *reserved3;            /* Jan Nijtmans dash patch */
1076     char *reserved4;
1077 } Tk_ItemType;
1078
1079 #endif
1080
1081 /*
1082  * The following structure provides information about the selection and the
1083  * insertion cursor. It is needed by only a few items, such as those that
1084  * display text. It is shared by the generic canvas code and the item-specific
1085  * code, but most of the fields should be written only by the canvas generic
1086  * code.
1087  */
1088
1089 typedef struct Tk_CanvasTextInfo {
1090     Tk_3DBorder selBorder;      /* Border and background for selected
1091                                  * characters. Read-only to items.*/
1092     int selBorderWidth;         /* Width of border around selection. Read-only
1093                                  * to items. */
1094     XColor *selFgColorPtr;      /* Foreground color for selected text.
1095                                  * Read-only to items. */
1096     Tk_Item *selItemPtr;        /* Pointer to selected item. NULL means
1097                                  * selection isn't in this canvas. Writable by
1098                                  * items. */
1099     int selectFirst;            /* Character index of first selected
1100                                  * character. Writable by items. */
1101     int selectLast;             /* Character index of last selected character.
1102                                  * Writable by items. */
1103     Tk_Item *anchorItemPtr;     /* Item corresponding to "selectAnchor": not
1104                                  * necessarily selItemPtr. Read-only to
1105                                  * items. */
1106     int selectAnchor;           /* Character index of fixed end of selection
1107                                  * (i.e. "select to" operation will use this
1108                                  * as one end of the selection). Writable by
1109                                  * items. */
1110     Tk_3DBorder insertBorder;   /* Used to draw vertical bar for insertion
1111                                  * cursor. Read-only to items. */
1112     int insertWidth;            /* Total width of insertion cursor. Read-only
1113                                  * to items. */
1114     int insertBorderWidth;      /* Width of 3-D border around insert cursor.
1115                                  * Read-only to items. */
1116     Tk_Item *focusItemPtr;      /* Item that currently has the input focus, or
1117                                  * NULL if no such item. Read-only to items. */
1118     int gotFocus;               /* Non-zero means that the canvas widget has
1119                                  * the input focus. Read-only to items.*/
1120     int cursorOn;               /* Non-zero means that an insertion cursor
1121                                  * should be displayed in focusItemPtr.
1122                                  * Read-only to items.*/
1123 } Tk_CanvasTextInfo;
1124 \f
1125 /*
1126  * Structures used for Dashing and Outline.
1127  */
1128
1129 typedef struct Tk_Dash {
1130     int number;
1131     union {
1132         char *pt;
1133         char array[sizeof(char *)];
1134     } pattern;
1135 } Tk_Dash;
1136
1137 typedef struct Tk_TSOffset {
1138     int flags;                  /* Flags; see below for possible values */
1139     int xoffset;                /* x offset */
1140     int yoffset;                /* y offset */
1141 } Tk_TSOffset;
1142
1143 /*
1144  * Bit fields in Tk_Offset->flags:
1145  */
1146
1147 #define TK_OFFSET_INDEX         1
1148 #define TK_OFFSET_RELATIVE      2
1149 #define TK_OFFSET_LEFT          4
1150 #define TK_OFFSET_CENTER        8
1151 #define TK_OFFSET_RIGHT         16
1152 #define TK_OFFSET_TOP           32
1153 #define TK_OFFSET_MIDDLE        64
1154 #define TK_OFFSET_BOTTOM        128
1155
1156 typedef struct Tk_Outline {
1157     GC gc;                      /* Graphics context. */
1158     double width;               /* Width of outline. */
1159     double activeWidth;         /* Width of outline. */
1160     double disabledWidth;       /* Width of outline. */
1161     int offset;                 /* Dash offset. */
1162     Tk_Dash dash;               /* Dash pattern. */
1163     Tk_Dash activeDash;         /* Dash pattern if state is active. */
1164     Tk_Dash disabledDash;       /* Dash pattern if state is disabled. */
1165     VOID *reserved1;            /* Reserved for future expansion. */
1166     VOID *reserved2;
1167     VOID *reserved3;
1168     Tk_TSOffset tsoffset;       /* Stipple offset for outline. */
1169     XColor *color;              /* Outline color. */
1170     XColor *activeColor;        /* Outline color if state is active. */
1171     XColor *disabledColor;      /* Outline color if state is disabled. */
1172     Pixmap stipple;             /* Outline Stipple pattern. */
1173     Pixmap activeStipple;       /* Outline Stipple pattern if state is
1174                                  * active. */
1175     Pixmap disabledStipple;     /* Outline Stipple pattern if state is
1176                                  * disabled. */
1177 } Tk_Outline;
1178 \f
1179 /*
1180  *--------------------------------------------------------------
1181  *
1182  * Procedure prototypes and structures used for managing images:
1183  *
1184  *--------------------------------------------------------------
1185  */
1186
1187 typedef struct Tk_ImageType Tk_ImageType;
1188 #ifdef USE_OLD_IMAGE
1189 typedef int (Tk_ImageCreateProc) _ANSI_ARGS_((Tcl_Interp *interp,
1190         char *name, int argc, char **argv, Tk_ImageType *typePtr,
1191         Tk_ImageMaster master, ClientData *masterDataPtr));
1192 #else
1193 typedef int (Tk_ImageCreateProc) _ANSI_ARGS_((Tcl_Interp *interp,
1194         char *name, int objc, Tcl_Obj *const objv[], Tk_ImageType *typePtr,
1195         Tk_ImageMaster master, ClientData *masterDataPtr));
1196 #endif
1197 typedef ClientData (Tk_ImageGetProc) _ANSI_ARGS_((Tk_Window tkwin,
1198         ClientData masterData));
1199 typedef void (Tk_ImageDisplayProc) _ANSI_ARGS_((ClientData instanceData,
1200         Display *display, Drawable drawable, int imageX, int imageY,
1201         int width, int height, int drawableX, int drawableY));
1202 typedef void (Tk_ImageFreeProc) _ANSI_ARGS_((ClientData instanceData,
1203         Display *display));
1204 typedef void (Tk_ImageDeleteProc) _ANSI_ARGS_((ClientData masterData));
1205 typedef void (Tk_ImageChangedProc) _ANSI_ARGS_((ClientData clientData,
1206         int x, int y, int width, int height, int imageWidth,
1207         int imageHeight));
1208 typedef int (Tk_ImagePostscriptProc) _ANSI_ARGS_((ClientData clientData,
1209         Tcl_Interp *interp, Tk_Window tkwin, Tk_PostscriptInfo psinfo,
1210         int x, int y, int width, int height, int prepass));
1211
1212 /*
1213  * The following structure represents a particular type of image (bitmap, xpm
1214  * image, etc.). It provides information common to all images of that type,
1215  * such as the type name and a collection of procedures in the image manager
1216  * that respond to various events. Each image manager is represented by one of
1217  * these structures.
1218  */
1219
1220 struct Tk_ImageType {
1221     char *name;                 /* Name of image type. */
1222     Tk_ImageCreateProc *createProc;
1223                                 /* Procedure to call to create a new image of
1224                                  * this type. */
1225     Tk_ImageGetProc *getProc;   /* Procedure to call the first time
1226                                  * Tk_GetImage is called in a new way (new
1227                                  * visual or screen). */
1228     Tk_ImageDisplayProc *displayProc;
1229                                 /* Call to draw image, in response to
1230                                  * Tk_RedrawImage calls. */
1231     Tk_ImageFreeProc *freeProc; /* Procedure to call whenever Tk_FreeImage is
1232                                  * called to release an instance of an
1233                                  * image. */
1234     Tk_ImageDeleteProc *deleteProc;
1235                                 /* Procedure to call to delete image. It will
1236                                  * not be called until after freeProc has been
1237                                  * called for each instance of the image. */
1238     Tk_ImagePostscriptProc *postscriptProc;
1239                                 /* Procedure to call to produce postscript
1240                                  * output for the image. */
1241     struct Tk_ImageType *nextPtr;
1242                                 /* Next in list of all image types currently
1243                                  * known. Filled in by Tk, not by image
1244                                  * manager. */
1245     char *reserved;             /* reserved for future expansion */
1246 };
1247 \f
1248 /*
1249  *--------------------------------------------------------------
1250  *
1251  * Additional definitions used to manage images of type "photo".
1252  *
1253  *--------------------------------------------------------------
1254  */
1255
1256 /*
1257  * The following type is used to identify a particular photo image to be
1258  * manipulated:
1259  */
1260
1261 typedef void *Tk_PhotoHandle;
1262
1263 /*
1264  * The following structure describes a block of pixels in memory:
1265  */
1266
1267 typedef struct Tk_PhotoImageBlock {
1268     unsigned char *pixelPtr;    /* Pointer to the first pixel. */
1269     int width;                  /* Width of block, in pixels. */
1270     int height;                 /* Height of block, in pixels. */
1271     int pitch;                  /* Address difference between corresponding
1272                                  * pixels in successive lines. */
1273     int pixelSize;              /* Address difference between successive
1274                                  * pixels in the same line. */
1275     int offset[4];              /* Address differences between the red, green,
1276                                  * blue and alpha components of the pixel and
1277                                  * the pixel as a whole. */
1278 } Tk_PhotoImageBlock;
1279
1280 /*
1281  * The following values control how blocks are combined into photo images when
1282  * the alpha component of a pixel is not 255, a.k.a. the compositing rule.
1283  */
1284
1285 #define TK_PHOTO_COMPOSITE_OVERLAY      0
1286 #define TK_PHOTO_COMPOSITE_SET          1
1287
1288 /*
1289  * Procedure prototypes and structures used in reading and writing photo
1290  * images:
1291  */
1292
1293 typedef struct Tk_PhotoImageFormat Tk_PhotoImageFormat;
1294 #ifdef USE_OLD_IMAGE
1295 typedef int (Tk_ImageFileMatchProc) _ANSI_ARGS_((Tcl_Channel chan,
1296         char *fileName, char *formatString, int *widthPtr, int *heightPtr));
1297 typedef int (Tk_ImageStringMatchProc) _ANSI_ARGS_((char *string,
1298         char *formatString, int *widthPtr, int *heightPtr));
1299 typedef int (Tk_ImageFileReadProc) _ANSI_ARGS_((Tcl_Interp *interp,
1300         Tcl_Channel chan, char *fileName, char *formatString,
1301         Tk_PhotoHandle imageHandle, int destX, int destY,
1302         int width, int height, int srcX, int srcY));
1303 typedef int (Tk_ImageStringReadProc) _ANSI_ARGS_((Tcl_Interp *interp,
1304         char *string, char *formatString, Tk_PhotoHandle imageHandle,
1305         int destX, int destY, int width, int height, int srcX, int srcY));
1306 typedef int (Tk_ImageFileWriteProc) _ANSI_ARGS_((Tcl_Interp *interp,
1307         char *fileName, char *formatString, Tk_PhotoImageBlock *blockPtr));
1308 typedef int (Tk_ImageStringWriteProc) _ANSI_ARGS_((Tcl_Interp *interp,
1309         Tcl_DString *dataPtr, char *formatString,
1310         Tk_PhotoImageBlock *blockPtr));
1311 #else
1312 typedef int (Tk_ImageFileMatchProc) _ANSI_ARGS_((Tcl_Channel chan,
1313         const char *fileName, Tcl_Obj *format, int *widthPtr,
1314         int *heightPtr, Tcl_Interp *interp));
1315 typedef int (Tk_ImageStringMatchProc) _ANSI_ARGS_((Tcl_Obj *dataObj,
1316         Tcl_Obj *format, int *widthPtr, int *heightPtr,
1317         Tcl_Interp *interp));
1318 typedef int (Tk_ImageFileReadProc) _ANSI_ARGS_((Tcl_Interp *interp,
1319         Tcl_Channel chan, const char *fileName, Tcl_Obj *format,
1320         Tk_PhotoHandle imageHandle, int destX, int destY,
1321         int width, int height, int srcX, int srcY));
1322 typedef int (Tk_ImageStringReadProc) _ANSI_ARGS_((Tcl_Interp *interp,
1323         Tcl_Obj *dataObj, Tcl_Obj *format, Tk_PhotoHandle imageHandle,
1324         int destX, int destY, int width, int height, int srcX, int srcY));
1325 typedef int (Tk_ImageFileWriteProc) _ANSI_ARGS_((Tcl_Interp *interp,
1326         const char *fileName, Tcl_Obj *format, Tk_PhotoImageBlock *blockPtr));
1327 typedef int (Tk_ImageStringWriteProc) _ANSI_ARGS_((Tcl_Interp *interp,
1328         Tcl_Obj *format, Tk_PhotoImageBlock *blockPtr));
1329 #endif
1330
1331 /*
1332  * The following structure represents a particular file format for storing
1333  * images (e.g., PPM, GIF, JPEG, etc.). It provides information to allow image
1334  * files of that format to be recognized and read into a photo image.
1335  */
1336
1337 struct Tk_PhotoImageFormat {
1338     char *name;                 /* Name of image file format */
1339     Tk_ImageFileMatchProc *fileMatchProc;
1340                                 /* Procedure to call to determine whether an
1341                                  * image file matches this format. */
1342     Tk_ImageStringMatchProc *stringMatchProc;
1343                                 /* Procedure to call to determine whether the
1344                                  * data in a string matches this format. */
1345     Tk_ImageFileReadProc *fileReadProc;
1346                                 /* Procedure to call to read data from an
1347                                  * image file into a photo image. */
1348     Tk_ImageStringReadProc *stringReadProc;
1349                                 /* Procedure to call to read data from a
1350                                  * string into a photo image. */
1351     Tk_ImageFileWriteProc *fileWriteProc;
1352                                 /* Procedure to call to write data from a
1353                                  * photo image to a file. */
1354     Tk_ImageStringWriteProc *stringWriteProc;
1355                                 /* Procedure to call to obtain a string
1356                                  * representation of the data in a photo
1357                                  * image.*/
1358     struct Tk_PhotoImageFormat *nextPtr;
1359                                 /* Next in list of all photo image formats
1360                                  * currently known. Filled in by Tk, not by
1361                                  * image format handler. */
1362 };
1363
1364 #ifdef USE_OLD_IMAGE
1365 #define Tk_CreateImageType Tk_CreateOldImageType
1366 #define Tk_CreatePhotoImageFormat Tk_CreateOldPhotoImageFormat
1367 #endif
1368 \f
1369 /*
1370  *--------------------------------------------------------------
1371  *
1372  * Procedure prototypes and structures used for managing styles:
1373  *
1374  *--------------------------------------------------------------
1375  */
1376
1377 /*
1378  * Style support version tag.
1379  */
1380
1381 #define TK_STYLE_VERSION_1      0x1
1382 #define TK_STYLE_VERSION        TK_STYLE_VERSION_1
1383
1384 /*
1385  * The following structures and prototypes are used as static templates to
1386  * declare widget elements.
1387  */
1388
1389 typedef void (Tk_GetElementSizeProc) _ANSI_ARGS_((ClientData clientData,
1390         char *recordPtr, const Tk_OptionSpec **optionsPtr, Tk_Window tkwin,
1391         int width, int height, int inner, int *widthPtr, int *heightPtr));
1392 typedef void (Tk_GetElementBoxProc) _ANSI_ARGS_((ClientData clientData,
1393         char *recordPtr, const Tk_OptionSpec **optionsPtr, Tk_Window tkwin,
1394         int x, int y, int width, int height, int inner, int *xPtr, int *yPtr,
1395         int *widthPtr, int *heightPtr));
1396 typedef int (Tk_GetElementBorderWidthProc) _ANSI_ARGS_((ClientData clientData,
1397         char *recordPtr, const Tk_OptionSpec **optionsPtr, Tk_Window tkwin));
1398 typedef void (Tk_DrawElementProc) _ANSI_ARGS_((ClientData clientData,
1399         char *recordPtr, const Tk_OptionSpec **optionsPtr, Tk_Window tkwin,
1400         Drawable d, int x, int y, int width, int height, int state));
1401
1402 typedef struct Tk_ElementOptionSpec {
1403     char *name;                 /* Name of the required option. */
1404     Tk_OptionType type;         /* Accepted option type. TK_OPTION_END means
1405                                  * any. */
1406 } Tk_ElementOptionSpec;
1407
1408 typedef struct Tk_ElementSpec {
1409     int version;                /* Version of the style support. */
1410     char *name;                 /* Name of element. */
1411     Tk_ElementOptionSpec *options;
1412                                 /* List of required options. Last one's name
1413                                  * must be NULL. */
1414     Tk_GetElementSizeProc *getSize;
1415                                 /* Compute the external (resp. internal) size
1416                                  * of the element from its desired internal
1417                                  * (resp. external) size. */
1418     Tk_GetElementBoxProc *getBox;
1419                                 /* Compute the inscribed or bounding boxes
1420                                  * within a given area. */
1421     Tk_GetElementBorderWidthProc *getBorderWidth;
1422                                 /* Return the element's internal border width.
1423                                  * Mostly useful for widgets. */
1424     Tk_DrawElementProc *draw;   /* Draw the element in the given bounding
1425                                  * box. */
1426 } Tk_ElementSpec;
1427
1428 /*
1429  * Element state flags. Can be OR'ed.
1430  */
1431
1432 #define TK_ELEMENT_STATE_ACTIVE         1<<0
1433 #define TK_ELEMENT_STATE_DISABLED       1<<1
1434 #define TK_ELEMENT_STATE_FOCUS          1<<2
1435 #define TK_ELEMENT_STATE_PRESSED        1<<3
1436 \f
1437 /*
1438  *--------------------------------------------------------------
1439  *
1440  * The definitions below provide backward compatibility for functions and
1441  * types related to event handling that used to be in Tk but have moved to
1442  * Tcl.
1443  *
1444  *--------------------------------------------------------------
1445  */
1446
1447 #define TK_READABLE             TCL_READABLE
1448 #define TK_WRITABLE             TCL_WRITABLE
1449 #define TK_EXCEPTION            TCL_EXCEPTION
1450
1451 #define TK_DONT_WAIT            TCL_DONT_WAIT
1452 #define TK_X_EVENTS             TCL_WINDOW_EVENTS
1453 #define TK_WINDOW_EVENTS        TCL_WINDOW_EVENTS
1454 #define TK_FILE_EVENTS          TCL_FILE_EVENTS
1455 #define TK_TIMER_EVENTS         TCL_TIMER_EVENTS
1456 #define TK_IDLE_EVENTS          TCL_IDLE_EVENTS
1457 #define TK_ALL_EVENTS           TCL_ALL_EVENTS
1458
1459 #define Tk_IdleProc             Tcl_IdleProc
1460 #define Tk_FileProc             Tcl_FileProc
1461 #define Tk_TimerProc            Tcl_TimerProc
1462 #define Tk_TimerToken           Tcl_TimerToken
1463
1464 #define Tk_BackgroundError      Tcl_BackgroundError
1465 #define Tk_CancelIdleCall       Tcl_CancelIdleCall
1466 #define Tk_CreateFileHandler    Tcl_CreateFileHandler
1467 #define Tk_CreateTimerHandler   Tcl_CreateTimerHandler
1468 #define Tk_DeleteFileHandler    Tcl_DeleteFileHandler
1469 #define Tk_DeleteTimerHandler   Tcl_DeleteTimerHandler
1470 #define Tk_DoOneEvent           Tcl_DoOneEvent
1471 #define Tk_DoWhenIdle           Tcl_DoWhenIdle
1472 #define Tk_Sleep                Tcl_Sleep
1473
1474 /* Additional stuff that has moved to Tcl: */
1475
1476 #define Tk_EventuallyFree       Tcl_EventuallyFree
1477 #define Tk_FreeProc             Tcl_FreeProc
1478 #define Tk_Preserve             Tcl_Preserve
1479 #define Tk_Release              Tcl_Release
1480
1481 /* Removed Tk_Main, use macro instead */
1482 #define Tk_Main(argc, argv, proc) \
1483     Tk_MainEx(argc, argv, proc, Tcl_CreateInterp())
1484
1485 const char *            Tk_InitStubs _ANSI_ARGS_((Tcl_Interp *interp,
1486                             const char *version, int exact));
1487 EXTERN const char *     Tk_PkgInitStubsCheck _ANSI_ARGS_((Tcl_Interp *interp,
1488                             const char *version, int exact));
1489
1490 #ifndef USE_TK_STUBS
1491
1492 #define Tk_InitStubs(interp, version, exact) \
1493     Tk_PkgInitStubsCheck(interp, version, exact)
1494
1495 #endif
1496
1497 #define Tk_InitImageArgs(interp, argc, argv) /**/
1498
1499 \f
1500 /*
1501  *--------------------------------------------------------------
1502  *
1503  * Additional procedure types defined by Tk.
1504  *
1505  *--------------------------------------------------------------
1506  */
1507
1508 typedef int (Tk_ErrorProc) _ANSI_ARGS_((ClientData clientData,
1509         XErrorEvent *errEventPtr));
1510 typedef void (Tk_EventProc) _ANSI_ARGS_((ClientData clientData,
1511         XEvent *eventPtr));
1512 typedef int (Tk_GenericProc) _ANSI_ARGS_((ClientData clientData,
1513         XEvent *eventPtr));
1514 typedef int (Tk_ClientMessageProc) _ANSI_ARGS_((Tk_Window tkwin,
1515         XEvent *eventPtr));
1516 typedef int (Tk_GetSelProc) _ANSI_ARGS_((ClientData clientData,
1517         Tcl_Interp *interp, char *portion));
1518 typedef void (Tk_LostSelProc) _ANSI_ARGS_((ClientData clientData));
1519 typedef Tk_RestrictAction (Tk_RestrictProc) _ANSI_ARGS_((
1520         ClientData clientData, XEvent *eventPtr));
1521 typedef int (Tk_SelectionProc) _ANSI_ARGS_((ClientData clientData,
1522         int offset, char *buffer, int maxBytes));
1523 \f
1524 /*
1525  *--------------------------------------------------------------
1526  *
1527  * Platform independant exported procedures and variables.
1528  *
1529  *--------------------------------------------------------------
1530  */
1531
1532 #include "tkDecls.h"
1533
1534 /*
1535  * Allow users to say that they don't want to alter their source to add extra
1536  * arguments to Tk_PhotoPutBlock() et al; DO NOT DEFINE THIS WHEN BUILDING TK.
1537  *
1538  * This goes after the inclusion of the stubbed-decls so that the declarations
1539  * of what is actually there can be correct.
1540  */
1541
1542 #ifdef USE_COMPOSITELESS_PHOTO_PUT_BLOCK
1543 #   ifdef Tk_PhotoPutBlock
1544 #       undef Tk_PhotoPutBlock
1545 #   endif
1546 #   define Tk_PhotoPutBlock             Tk_PhotoPutBlock_NoComposite
1547 #   ifdef Tk_PhotoPutZoomedBlock
1548 #       undef Tk_PhotoPutZoomedBlock
1549 #   endif
1550 #   define Tk_PhotoPutZoomedBlock       Tk_PhotoPutZoomedBlock_NoComposite
1551 #   define USE_PANIC_ON_PHOTO_ALLOC_FAILURE
1552 #else /* !USE_COMPOSITELESS_PHOTO_PUT_BLOCK */
1553 #   ifdef USE_PANIC_ON_PHOTO_ALLOC_FAILURE
1554 #       ifdef Tk_PhotoPutBlock
1555 #           undef Tk_PhotoPutBlock
1556 #       endif
1557 #       define Tk_PhotoPutBlock         Tk_PhotoPutBlock_Panic
1558 #       ifdef Tk_PhotoPutZoomedBlock
1559 #           undef Tk_PhotoPutZoomedBlock
1560 #       endif
1561 #       define Tk_PhotoPutZoomedBlock   Tk_PhotoPutZoomedBlock_Panic
1562 #   endif /* USE_PANIC_ON_PHOTO_ALLOC_FAILURE */
1563 #endif /* USE_COMPOSITELESS_PHOTO_PUT_BLOCK */
1564 #ifdef USE_PANIC_ON_PHOTO_ALLOC_FAILURE
1565 #   ifdef Tk_PhotoExpand
1566 #       undef Tk_PhotoExpand
1567 #   endif
1568 #   define Tk_PhotoExpand               Tk_PhotoExpand_Panic
1569 #   ifdef Tk_PhotoSetSize
1570 #       undef Tk_PhotoSetSize
1571 #   endif
1572 #   define Tk_PhotoSetSize              Tk_PhotoSetSize_Panic
1573 #endif /* USE_PANIC_ON_PHOTO_ALLOC_FAILURE */
1574
1575 /*
1576  * Tcl commands exported by Tk:
1577  */
1578
1579 #undef TCL_STORAGE_CLASS
1580 #define TCL_STORAGE_CLASS DLLIMPORT
1581
1582 #endif /* RC_INVOKED */
1583
1584 /*
1585  * end block for C++
1586  */
1587
1588 #ifdef __cplusplus
1589 }
1590 #endif
1591
1592 #endif /* _TK */
1593 \f
1594 /*
1595  * Local Variables:
1596  * mode: c
1597  * c-basic-offset: 4
1598  * fill-column: 78
1599  * End:
1600  */