dlls/gdi32/gdiobj.c

   1 /*
   2  * GDI functions
   3  *
   4  * Copyright 1993 Alexandre Julliard
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "config.h"
  22
  23 #include <assert.h>
  24 #include <stdlib.h>
  25 #include <stdarg.h>
  26 #include <stdio.h>
  27
  28 #include "windef.h"
  29 #include "winbase.h"
  30 #include "wingdi.h"
  31 #include "winreg.h"
  32 #include "winerror.h"
  33 #include "winternl.h"
  34
  35 #include "gdi_private.h"
  36 #include "wine/debug.h"
  37
  38 WINE_DEFAULT_DEBUG_CHANNEL(gdi);
  39
  40 #define HGDIOBJ_32(h16)   ((HGDIOBJ)(ULONG_PTR)(h16))
  41
  42 #define GDI_HEAP_SIZE 0xffe0
  43
  44 /***********************************************************************
  45  *          GDI stock objects
  46  */
  47
  48 static const LOGBRUSH WhiteBrush = { BS_SOLID, RGB(255,255,255), 0 };
  49 static const LOGBRUSH BlackBrush = { BS_SOLID, RGB(0,0,0), 0 };
  50 static const LOGBRUSH NullBrush  = { BS_NULL, 0, 0 };
  51
  52 static const LOGBRUSH LtGrayBrush = { BS_SOLID, RGB(192,192,192), 0 };
  53 static const LOGBRUSH GrayBrush   = { BS_SOLID, RGB(128,128,128), 0 };
  54 static const LOGBRUSH DkGrayBrush = { BS_SOLID, RGB(64,64,64), 0 };
  55
  56 static const LOGPEN WhitePen = { PS_SOLID, { 0, 0 }, RGB(255,255,255) };
  57 static const LOGPEN BlackPen = { PS_SOLID, { 0, 0 }, RGB(0,0,0) };
  58 static const LOGPEN NullPen  = { PS_NULL,  { 0, 0 }, 0 };
  59
  60 static const LOGBRUSH DCBrush = { BS_SOLID, RGB(255,255,255), 0 };
  61 static const LOGPEN DCPen     = { PS_SOLID, { 0, 0 }, RGB(0,0,0) };
  62
  63 /* reserve one extra entry for the stock default bitmap */
  64 /* this is what Windows does too */
  65 #define NB_STOCK_OBJECTS (STOCK_LAST+2)
  66
  67 static HGDIOBJ stock_objects[NB_STOCK_OBJECTS];
  68
  69 static SYSLEVEL GDI_level;
  70 static CRITICAL_SECTION_DEBUG critsect_debug =
  71 {
  72     0, 0, &GDI_level.crst,
  73     { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
  74       0, 0, { (DWORD_PTR)(__FILE__ ": GDI_level") }
  75 };
  76 static SYSLEVEL GDI_level = { { &critsect_debug, -1, 0, 0, 0, 0 }, 3 };
  77
  78
  79 /****************************************************************************
  80  *
  81  *      language-independent stock fonts
  82  *
  83  */
  84
  85 static const LOGFONTW OEMFixedFont =
  86 { 12, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, OEM_CHARSET,
  87   0, 0, DEFAULT_QUALITY, FIXED_PITCH | FF_MODERN, {'\0'} };
  88
  89 static const LOGFONTW AnsiFixedFont =
  90 { 12, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, ANSI_CHARSET,
  91   0, 0, DEFAULT_QUALITY, FIXED_PITCH | FF_MODERN, {'\0'} };
  92
  93 static const LOGFONTW AnsiVarFont =
  94 { 12, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, ANSI_CHARSET,
  95   0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS,
  96   {'M','S',' ','S','a','n','s',' ','S','e','r','i','f','\0'} };
  97
  98 /******************************************************************************
  99  *
 100  *      language-dependent stock fonts
 101  *
 102  *      'ANSI' charset and 'DEFAULT' charset is not same.
 103  *      The chars in CP_ACP should be drawn with 'DEFAULT' charset.
 104  *      'ANSI' charset seems to be identical with ISO-8859-1.
 105  *      'DEFAULT' charset is a language-dependent charset.
 106  *
 107  *      'System' font seems to be an alias for language-dependent font.
 108  */
 109
 110 /*
 111  * language-dependent stock fonts for all known charsets
 112  * please see TranslateCharsetInfo (dlls/gdi/font.c) and
 113  * CharsetBindingInfo (dlls/x11drv/xfont.c),
 114  * and modify entries for your language if needed.
 115  */
 116 struct DefaultFontInfo
 117 {
 118         UINT            charset;
 119         LOGFONTW        SystemFont;
 120         LOGFONTW        DeviceDefaultFont;
 121         LOGFONTW        SystemFixedFont;
 122         LOGFONTW        DefaultGuiFont; /* Note for this font the lfHeight member should be the point size */
 123 };
 124
 125 static const struct DefaultFontInfo default_fonts[] =
 126 {
 127     {   ANSI_CHARSET,
 128         { /* System */
 129           16, 7, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, ANSI_CHARSET,
 130            0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS,
 131            {'S','y','s','t','e','m','\0'}
 132         },
 133         { /* Device Default */
 134           16, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, ANSI_CHARSET,
 135            0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS,
 136            {'\0'}
 137         },
 138         { /* System Fixed */
 139           16, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, ANSI_CHARSET,
 140            0, 0, DEFAULT_QUALITY, FIXED_PITCH | FF_MODERN,
 141            {'\0'}
 142         },
 143         { /* DefaultGuiFont */
 144            8, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, ANSI_CHARSET,
 145            0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS,
 146            {'M','S',' ','S','h','e','l','l',' ','D','l','g','\0'}
 147         },
 148     },
 149     {   EASTEUROPE_CHARSET,
 150         { /* System */
 151           16, 7, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, EASTEUROPE_CHARSET,
 152            0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS,
 153            {'S','y','s','t','e','m','\0'}
 154         },
 155         { /* Device Default */
 156           16, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, EASTEUROPE_CHARSET,
 157            0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS,
 158            {'\0'}
 159         },
 160         { /* System Fixed */
 161           16, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, EASTEUROPE_CHARSET,
 162            0, 0, DEFAULT_QUALITY, FIXED_PITCH | FF_MODERN,
 163            {'\0'}
 164         },
 165         { /* DefaultGuiFont */
 166            8, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, EASTEUROPE_CHARSET,
 167            0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS,
 168            {'M','S',' ','S','h','e','l','l',' ','D','l','g','\0'}
 169         },
 170     },
 171     {   RUSSIAN_CHARSET,
 172         { /* System */
 173           16, 7, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, RUSSIAN_CHARSET,
 174            0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS,
 175            {'S','y','s','t','e','m','\0'}
 176         },
 177         { /* Device Default */
 178           16, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, RUSSIAN_CHARSET,
 179            0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS,
 180            {'\0'}
 181         },
 182         { /* System Fixed */
 183           16, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, RUSSIAN_CHARSET,
 184            0, 0, DEFAULT_QUALITY, FIXED_PITCH | FF_MODERN,
 185            {'\0'}
 186         },
 187         { /* DefaultGuiFont */
 188            8, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, RUSSIAN_CHARSET,
 189            0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS,
 190            {'M','S',' ','S','h','e','l','l',' ','D','l','g','\0'}
 191         },
 192     },
 193     {   GREEK_CHARSET,
 194         { /* System */
 195           16, 7, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, GREEK_CHARSET,
 196            0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS,
 197            {'S','y','s','t','e','m','\0'}
 198         },
 199         { /* Device Default */
 200           16, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, GREEK_CHARSET,
 201            0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS,
 202            {'\0'}
 203         },
 204         { /* System Fixed */
 205           16, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, GREEK_CHARSET,
 206            0, 0, DEFAULT_QUALITY, FIXED_PITCH | FF_MODERN,
 207            {'\0'}
 208         },
 209         { /* DefaultGuiFont */
 210            8, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, GREEK_CHARSET,
 211            0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS,
 212            {'M','S',' ','S','h','e','l','l',' ','D','l','g','\0'}
 213         },
 214     },
 215     {   TURKISH_CHARSET,
 216         { /* System */
 217           16, 7, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, TURKISH_CHARSET,
 218            0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS,
 219            {'S','y','s','t','e','m','\0'}
 220         },
 221         { /* Device Default */
 222           16, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, TURKISH_CHARSET,
 223            0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS,
 224            {'\0'}
 225         },
 226         { /* System Fixed */
 227           16, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, TURKISH_CHARSET,
 228            0, 0, DEFAULT_QUALITY, FIXED_PITCH | FF_MODERN,
 229            {'\0'}
 230         },
 231         { /* DefaultGuiFont */
 232            8, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, TURKISH_CHARSET,
 233            0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS,
 234            {'M','S',' ','S','h','e','l','l',' ','D','l','g','\0'}
 235         },
 236     },
 237     {   HEBREW_CHARSET,
 238         { /* System */
 239           16, 7, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, HEBREW_CHARSET,
 240            0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS,
 241            {'S','y','s','t','e','m','\0'}
 242         },
 243         { /* Device Default */
 244           16, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, HEBREW_CHARSET,
 245            0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS,
 246            {'\0'}
 247         },
 248         { /* System Fixed */
 249           16, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, HEBREW_CHARSET,
 250            0, 0, DEFAULT_QUALITY, FIXED_PITCH | FF_MODERN,
 251            {'\0'}
 252         },
 253         { /* DefaultGuiFont */
 254            8, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, HEBREW_CHARSET,
 255            0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS,
 256            {'M','S',' ','S','h','e','l','l',' ','D','l','g','\0'}
 257         },
 258     },
 259     {   ARABIC_CHARSET,
 260         { /* System */
 261           16, 7, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, ARABIC_CHARSET,
 262            0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS,
 263            {'S','y','s','t','e','m','\0'}
 264         },
 265         { /* Device Default */
 266           16, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, ARABIC_CHARSET,
 267            0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS,
 268            {'\0'}
 269         },
 270         { /* System Fixed */
 271           16, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, ARABIC_CHARSET,
 272            0, 0, DEFAULT_QUALITY, FIXED_PITCH | FF_MODERN,
 273            {'\0'}
 274         },
 275         { /* DefaultGuiFont */
 276            8, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, ARABIC_CHARSET,
 277            0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS,
 278            {'M','S',' ','S','h','e','l','l',' ','D','l','g','\0'}
 279         },
 280     },
 281     {   BALTIC_CHARSET,
 282         { /* System */
 283           16, 7, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, BALTIC_CHARSET,
 284            0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS,
 285            {'S','y','s','t','e','m','\0'}
 286         },
 287         { /* Device Default */
 288           16, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, BALTIC_CHARSET,
 289            0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS,
 290            {'\0'}
 291         },
 292         { /* System Fixed */
 293           16, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, BALTIC_CHARSET,
 294            0, 0, DEFAULT_QUALITY, FIXED_PITCH | FF_MODERN,
 295            {'\0'}
 296         },
 297         { /* DefaultGuiFont */
 298            8, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, BALTIC_CHARSET,
 299            0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS,
 300            {'M','S',' ','S','h','e','l','l',' ','D','l','g','\0'}
 301         },
 302     },
 303     {   THAI_CHARSET,
 304         { /* System */
 305           16, 7, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, THAI_CHARSET,
 306            0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS,
 307            {'S','y','s','t','e','m','\0'}
 308         },
 309         { /* Device Default */
 310           16, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, THAI_CHARSET,
 311            0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS,
 312            {'\0'}
 313         },
 314         { /* System Fixed */
 315           16, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, THAI_CHARSET,
 316            0, 0, DEFAULT_QUALITY, FIXED_PITCH | FF_MODERN,
 317            {'\0'}
 318         },
 319         { /* DefaultGuiFont */
 320            8, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, THAI_CHARSET,
 321            0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS,
 322            {'M','S',' ','S','h','e','l','l',' ','D','l','g','\0'}
 323         },
 324     },
 325     {   SHIFTJIS_CHARSET,
 326         { /* System */
 327           16, 7, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, SHIFTJIS_CHARSET,
 328            0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS,
 329            {'S','y','s','t','e','m','\0'}
 330         },
 331         { /* Device Default */
 332           16, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, SHIFTJIS_CHARSET,
 333            0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS,
 334            {'\0'}
 335         },
 336         { /* System Fixed */
 337           16, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, SHIFTJIS_CHARSET,
 338            0, 0, DEFAULT_QUALITY, FIXED_PITCH | FF_MODERN,
 339            {'\0'}
 340         },
 341         { /* DefaultGuiFont */
 342            9, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, SHIFTJIS_CHARSET,
 343            0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS,
 344            {'M','S',' ','S','h','e','l','l',' ','D','l','g','\0'}
 345         },
 346     },
 347     {   GB2312_CHARSET,
 348         { /* System */
 349           16, 7, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, GB2312_CHARSET,
 350            0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS,
 351            {'S','y','s','t','e','m','\0'}
 352         },
 353         { /* Device Default */
 354           16, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, GB2312_CHARSET,
 355            0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS,
 356            {'\0'}
 357         },
 358         { /* System Fixed */
 359           16, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, GB2312_CHARSET,
 360            0, 0, DEFAULT_QUALITY, FIXED_PITCH | FF_MODERN,
 361            {'\0'}
 362         },
 363         { /* DefaultGuiFont */
 364            9, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, GB2312_CHARSET,
 365            0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS,
 366            {'M','S',' ','S','h','e','l','l',' ','D','l','g','\0'}
 367         },
 368     },
 369     {   HANGEUL_CHARSET,
 370         { /* System */
 371           16, 7, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, HANGEUL_CHARSET,
 372            0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS,
 373            {'S','y','s','t','e','m','\0'}
 374         },
 375         { /* Device Default */
 376           16, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, HANGEUL_CHARSET,
 377            0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS,
 378            {'\0'}
 379         },
 380         { /* System Fixed */
 381           16, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, HANGEUL_CHARSET,
 382            0, 0, DEFAULT_QUALITY, FIXED_PITCH | FF_MODERN,
 383            {'\0'}
 384         },
 385         { /* DefaultGuiFont */
 386            9, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, HANGEUL_CHARSET,
 387            0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS,
 388            {'M','S',' ','S','h','e','l','l',' ','D','l','g','\0'}
 389         },
 390     },
 391     {   CHINESEBIG5_CHARSET,
 392         { /* System */
 393           16, 7, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, CHINESEBIG5_CHARSET,
 394            0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS,
 395            {'S','y','s','t','e','m','\0'}
 396         },
 397         { /* Device Default */
 398           16, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, CHINESEBIG5_CHARSET,
 399            0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS,
 400            {'\0'}
 401         },
 402         { /* System Fixed */
 403           16, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, CHINESEBIG5_CHARSET,
 404            0, 0, DEFAULT_QUALITY, FIXED_PITCH | FF_MODERN,
 405            {'\0'}
 406         },
 407         { /* DefaultGuiFont */
 408            9, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, CHINESEBIG5_CHARSET,
 409            0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS,
 410            {'M','S',' ','S','h','e','l','l',' ','D','l','g','\0'}
 411         },
 412     },
 413     {   JOHAB_CHARSET,
 414         { /* System */
 415           16, 7, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, JOHAB_CHARSET,
 416            0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS,
 417            {'S','y','s','t','e','m','\0'}
 418         },
 419         { /* Device Default */
 420           16, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, JOHAB_CHARSET,
 421            0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS,
 422            {'\0'}
 423         },
 424         { /* System Fixed */
 425           16, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, JOHAB_CHARSET,
 426            0, 0, DEFAULT_QUALITY, FIXED_PITCH | FF_MODERN,
 427            {'\0'}
 428         },
 429         { /* DefaultGuiFont */
 430            8, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, JOHAB_CHARSET,
 431            0, 0, DEFAULT_QUALITY, VARIABLE_PITCH | FF_SWISS,
 432            {'M','S',' ','S','h','e','l','l',' ','D','l','g','\0'}
 433         },
 434     },
 435 };
 436
 437
 438 /*************************************************************************
 439  * __wine_make_gdi_object_system    (GDI32.@)
 440  *
 441  * USER has to tell GDI that its system brushes and pens are non-deletable.
 442  * For a description of the GDI object magics and their flags,
 443  * see "Undocumented Windows" (wrong about the OBJECT_NOSYSTEM flag, though).
 444  */
 445 void CDECL __wine_make_gdi_object_system( HGDIOBJ handle, BOOL set)
 446 {
 447     GDIOBJHDR *ptr = GDI_GetObjPtr( handle, MAGIC_DONTCARE );
 448
 449     /* touch the "system" bit of the wMagic field of a GDIOBJHDR */
 450     if (set)
 451         ptr->wMagic &= ~OBJECT_NOSYSTEM;
 452     else
 453         ptr->wMagic |= OBJECT_NOSYSTEM;
 454
 455     GDI_ReleaseObj( handle );
 456 }
 457
 458 /******************************************************************************
 459  *      get_default_fonts
 460  */
 461 static const struct DefaultFontInfo* get_default_fonts(UINT charset)
 462 {
 463         unsigned int n;
 464
 465         for(n=0;n<(sizeof(default_fonts)/sizeof(default_fonts[0]));n++)
 466         {
 467                 if ( default_fonts[n].charset == charset )
 468                         return &default_fonts[n];
 469         }
 470
 471         FIXME( "unhandled charset 0x%08x - use ANSI_CHARSET for default stock objects\n", charset );
 472         return &default_fonts[0];
 473 }
 474
 475
 476 /******************************************************************************
 477  *      get_default_charset    (internal)
 478  *
 479  * get the language-dependent charset that can handle CP_ACP correctly.
 480  */
 481 static UINT get_default_charset( void )
 482 {
 483     CHARSETINFO     csi;
 484     UINT    uACP;
 485
 486     uACP = GetACP();
 487     csi.ciCharset = ANSI_CHARSET;
 488     if ( !TranslateCharsetInfo( ULongToPtr(uACP), &csi, TCI_SRCCODEPAGE ) )
 489     {
 490         FIXME( "unhandled codepage %u - use ANSI_CHARSET for default stock objects\n", uACP );
 491         return ANSI_CHARSET;
 492     }
 493
 494     return csi.ciCharset;
 495 }
 496
 497 static const WCHAR dpi_key_name[] = {'S','o','f','t','w','a','r','e','\\','F','o','n','t','s','\0'};
 498 static const WCHAR dpi_value_name[] = {'L','o','g','P','i','x','e','l','s','\0'};
 499
 500 /******************************************************************************
 501  *      get_dpi   (internal)
 502  *
 503  * get the dpi from the registry
 504  */
 505 static DWORD get_dpi( void )
 506 {
 507     DWORD dpi = 96;
 508     HKEY hkey;
 509
 510     if (RegOpenKeyW(HKEY_CURRENT_CONFIG, dpi_key_name, &hkey) == ERROR_SUCCESS)
 511     {
 512         DWORD type, size, new_dpi;
 513
 514         size = sizeof(new_dpi);
 515         if(RegQueryValueExW(hkey, dpi_value_name, NULL, &type, (void *)&new_dpi, &size) == ERROR_SUCCESS)
 516         {
 517             if(type == REG_DWORD && new_dpi != 0)
 518                 dpi = new_dpi;
 519         }
 520         RegCloseKey(hkey);
 521     }
 522     return dpi;
 523 }
 524
 525
 526 /***********************************************************************
 527  *           GDI_inc_ref_count
 528  *
 529  * Increment the reference count of a GDI object.
 530  */
 531 BOOL GDI_inc_ref_count( HGDIOBJ handle )
 532 {
 533     GDIOBJHDR *header;
 534
 535     if ((header = GDI_GetObjPtr( handle, MAGIC_DONTCARE )))
 536     {
 537         header->dwCount++;
 538         GDI_ReleaseObj( handle );
 539     }
 540     return header != NULL;
 541 }
 542
 543
 544 /***********************************************************************
 545  *           GDI_dec_ref_count
 546  *
 547  * Decrement the reference count of a GDI object.
 548  */
 549 BOOL GDI_dec_ref_count( HGDIOBJ handle )
 550 {
 551     GDIOBJHDR *header;
 552
 553     if ((header = GDI_GetObjPtr( handle, MAGIC_DONTCARE )))
 554     {
 555         if (header->dwCount) header->dwCount--;
 556         if (header->dwCount != 0x80000000) GDI_ReleaseObj( handle );
 557         else
 558         {
 559             /* handle delayed DeleteObject*/
 560             header->dwCount = 0;
 561             GDI_ReleaseObj( handle );
 562             TRACE( "executing delayed DeleteObject for %p\n", handle );
 563             DeleteObject( handle );
 564         }
 565     }
 566     return header != NULL;
 567 }
 568
 569
 570 /***********************************************************************
 571  *           GDI_Init
 572  *
 573  * GDI initialization.
 574  */
 575 BOOL GDI_Init(void)
 576 {
 577     LOGFONTW default_gui_font;
 578     const struct DefaultFontInfo* deffonts;
 579     int i;
 580
 581     WineEngInit();
 582
 583     /* create stock objects */
 584     stock_objects[WHITE_BRUSH]  = CreateBrushIndirect( &WhiteBrush );
 585     stock_objects[LTGRAY_BRUSH] = CreateBrushIndirect( &LtGrayBrush );
 586     stock_objects[GRAY_BRUSH]   = CreateBrushIndirect( &GrayBrush );
 587     stock_objects[DKGRAY_BRUSH] = CreateBrushIndirect( &DkGrayBrush );
 588     stock_objects[BLACK_BRUSH]  = CreateBrushIndirect( &BlackBrush );
 589     stock_objects[NULL_BRUSH]   = CreateBrushIndirect( &NullBrush );
 590
 591     stock_objects[WHITE_PEN]    = CreatePenIndirect( &WhitePen );
 592     stock_objects[BLACK_PEN]    = CreatePenIndirect( &BlackPen );
 593     stock_objects[NULL_PEN]     = CreatePenIndirect( &NullPen );
 594
 595     stock_objects[DEFAULT_PALETTE] = PALETTE_Init();
 596     stock_objects[DEFAULT_BITMAP]  = CreateBitmap( 1, 1, 1, 1, NULL );
 597
 598     /* language-independent stock fonts */
 599     stock_objects[OEM_FIXED_FONT]      = CreateFontIndirectW( &OEMFixedFont );
 600     stock_objects[ANSI_FIXED_FONT]     = CreateFontIndirectW( &AnsiFixedFont );
 601     stock_objects[ANSI_VAR_FONT]       = CreateFontIndirectW( &AnsiVarFont );
 602
 603     /* language-dependent stock fonts */
 604     deffonts = get_default_fonts(get_default_charset());
 605     stock_objects[SYSTEM_FONT]         = CreateFontIndirectW( &deffonts->SystemFont );
 606     stock_objects[DEVICE_DEFAULT_FONT] = CreateFontIndirectW( &deffonts->DeviceDefaultFont );
 607     stock_objects[SYSTEM_FIXED_FONT]   = CreateFontIndirectW( &deffonts->SystemFixedFont );
 608
 609     /* For the default gui font, we use the lfHeight member in deffonts as a place-holder
 610        for the point size so we must convert this into a true height */
 611     default_gui_font = deffonts->DefaultGuiFont;
 612     default_gui_font.lfHeight = -MulDiv(default_gui_font.lfHeight, get_dpi(), 72);
 613     stock_objects[DEFAULT_GUI_FONT]    = CreateFontIndirectW( &default_gui_font );
 614
 615     stock_objects[DC_BRUSH]     = CreateBrushIndirect( &DCBrush );
 616     stock_objects[DC_PEN]       = CreatePenIndirect( &DCPen );
 617
 618     /* clear the NOSYSTEM bit on all stock objects*/
 619     for (i = 0; i < NB_STOCK_OBJECTS; i++)
 620     {
 621         if (!stock_objects[i])
 622         {
 623             if (i == 9) continue;  /* there's no stock object 9 */
 624             ERR( "could not create stock object %d\n", i );
 625             return FALSE;
 626         }
 627         __wine_make_gdi_object_system( stock_objects[i], TRUE );
 628     }
 629
 630     return TRUE;
 631 }
 632
 633 #define FIRST_LARGE_HANDLE 16
 634 #define MAX_LARGE_HANDLES ((GDI_HEAP_SIZE >> 2) - FIRST_LARGE_HANDLE)
 635 static GDIOBJHDR *large_handles[MAX_LARGE_HANDLES];
 636 static int next_large_handle;
 637
 638 /***********************************************************************
 639  *           alloc_large_heap
 640  *
 641  * Allocate a GDI handle from the large heap. Helper for GDI_AllocObject
 642  */
 643 static inline GDIOBJHDR *alloc_large_heap( WORD size, HGDIOBJ *handle )
 644 {
 645     int i;
 646     GDIOBJHDR *obj;
 647
 648     for (i = next_large_handle + 1; i < MAX_LARGE_HANDLES; i++)
 649         if (!large_handles[i]) goto found;
 650     for (i = 0; i <= next_large_handle; i++)
 651         if (!large_handles[i]) goto found;
 652     *handle = 0;
 653     return NULL;
 654
 655  found:
 656     if ((obj = HeapAlloc( GetProcessHeap(), 0, size )))
 657     {
 658         large_handles[i] = obj;
 659         *handle = (HGDIOBJ)(ULONG_PTR)((i + FIRST_LARGE_HANDLE) << 2);
 660         next_large_handle = i;
 661     }
 662     return obj;
 663 }
 664
 665
 666 /***********************************************************************
 667  *           GDI_AllocObject
 668  */
 669 void *GDI_AllocObject( WORD size, WORD magic, HGDIOBJ *handle, const struct gdi_obj_funcs *funcs )
 670 {
 671     GDIOBJHDR *obj = NULL;
 672
 673     _EnterSysLevel( &GDI_level );
 674     if (!(obj = alloc_large_heap( size, handle ))) goto error;
 675
 676     obj->wMagic  = magic|OBJECT_NOSYSTEM;
 677     obj->dwCount = 0;
 678     obj->funcs   = funcs;
 679     obj->hdcs    = NULL;
 680
 681     TRACE("(%p): enter %d\n", *handle, GDI_level.crst.RecursionCount);
 682     return obj;
 683
 684 error:
 685     _LeaveSysLevel( &GDI_level );
 686     *handle = 0;
 687     return NULL;
 688 }
 689
 690
 691 /***********************************************************************
 692  *           GDI_ReallocObject
 693  *
 694  * The object ptr must have been obtained with GDI_GetObjPtr.
 695  * The new pointer must be released with GDI_ReleaseObj.
 696  */
 697 void *GDI_ReallocObject( WORD size, HGDIOBJ handle, void *object )
 698 {
 699     void *new_ptr = NULL;
 700     int i;
 701
 702     i = ((ULONG_PTR)handle >> 2) - FIRST_LARGE_HANDLE;
 703     if (i >= 0 && i < MAX_LARGE_HANDLES && large_handles[i])
 704     {
 705         new_ptr = HeapReAlloc( GetProcessHeap(), 0, large_handles[i], size );
 706         if (new_ptr) large_handles[i] = new_ptr;
 707     }
 708     else ERR( "Invalid handle %p\n", handle );
 709     if (!new_ptr)
 710     {
 711         TRACE("(%p): leave %d\n", handle, GDI_level.crst.RecursionCount);
 712         _LeaveSysLevel( &GDI_level );
 713     }
 714     return new_ptr;
 715 }
 716
 717
 718 /***********************************************************************
 719  *           GDI_FreeObject
 720  */
 721 BOOL GDI_FreeObject( HGDIOBJ handle, void *ptr )
 722 {
 723     GDIOBJHDR *object = ptr;
 724     int i;
 725
 726     object->wMagic = 0;  /* Mark it as invalid */
 727     object->funcs  = NULL;
 728     i = ((ULONG_PTR)handle >> 2) - FIRST_LARGE_HANDLE;
 729     if (i >= 0 && i < MAX_LARGE_HANDLES)
 730     {
 731         HeapFree( GetProcessHeap(), 0, large_handles[i] );
 732         large_handles[i] = NULL;
 733     }
 734     else ERR( "Invalid handle %p\n", handle );
 735     TRACE("(%p): leave %d\n", handle, GDI_level.crst.RecursionCount);
 736     _LeaveSysLevel( &GDI_level );
 737     return TRUE;
 738 }
 739
 740
 741 /***********************************************************************
 742  *           GDI_GetObjPtr
 743  *
 744  * Return a pointer to the GDI object associated to the handle.
 745  * Return NULL if the object has the wrong magic number.
 746  * The object must be released with GDI_ReleaseObj.
 747  */
 748 void *GDI_GetObjPtr( HGDIOBJ handle, WORD magic )
 749 {
 750     GDIOBJHDR *ptr = NULL;
 751     int i;
 752
 753     _EnterSysLevel( &GDI_level );
 754
 755     i = ((UINT_PTR)handle >> 2) - FIRST_LARGE_HANDLE;
 756     if (i >= 0 && i < MAX_LARGE_HANDLES)
 757     {
 758         ptr = large_handles[i];
 759         if (ptr && (magic != MAGIC_DONTCARE) && (GDIMAGIC(ptr->wMagic) != magic)) ptr = NULL;
 760     }
 761
 762     if (!ptr)
 763     {
 764         _LeaveSysLevel( &GDI_level );
 765         WARN( "Invalid handle %p\n", handle );
 766     }
 767     else TRACE("(%p): enter %d\n", handle, GDI_level.crst.RecursionCount);
 768
 769     return ptr;
 770 }
 771
 772
 773 /***********************************************************************
 774  *           GDI_ReleaseObj
 775  *
 776  */
 777 void GDI_ReleaseObj( HGDIOBJ handle )
 778 {
 779     TRACE("(%p): leave %d\n", handle, GDI_level.crst.RecursionCount);
 780     _LeaveSysLevel( &GDI_level );
 781 }
 782
 783
 784 /***********************************************************************
 785  *           GDI_CheckNotLock
 786  */
 787 void GDI_CheckNotLock(void)
 788 {
 789     _CheckNotSysLevel( &GDI_level );
 790 }
 791
 792
 793 /***********************************************************************
 794  *           DeleteObject    (GDI32.@)
 795  *
 796  * Delete a Gdi object.
 797  *
 798  * PARAMS
 799  *  obj [I] Gdi object to delete
 800  *
 801  * RETURNS
 802  *  Success: TRUE. If obj was not returned from GetStockObject(), any resources
 803  *           it consumed are released.
 804  *  Failure: FALSE, if obj is not a valid Gdi object, or is currently selected
 805  *           into a DC.
 806  */
 807 BOOL WINAPI DeleteObject( HGDIOBJ obj )
 808 {
 809       /* Check if object is valid */
 810
 811     GDIOBJHDR * header;
 812     if (HIWORD(obj)) return FALSE;
 813
 814     if (!(header = GDI_GetObjPtr( obj, MAGIC_DONTCARE ))) return FALSE;
 815
 816     if (!(header->wMagic & OBJECT_NOSYSTEM)
 817     &&   (header->wMagic >= FIRST_MAGIC) && (header->wMagic <= LAST_MAGIC))
 818     {
 819         TRACE("Preserving system object %p\n", obj);
 820         GDI_ReleaseObj( obj );
 821         return TRUE;
 822     }
 823
 824     while (header->hdcs)
 825     {
 826         DC *dc = get_dc_ptr(header->hdcs->hdc);
 827         struct hdc_list *tmp;
 828
 829         TRACE("hdc %p has interest in %p\n", header->hdcs->hdc, obj);
 830         if(dc)
 831         {
 832             if(dc->funcs->pDeleteObject)
 833                 dc->funcs->pDeleteObject( dc->physDev, obj );
 834             release_dc_ptr( dc );
 835         }
 836         tmp = header->hdcs;
 837         header->hdcs = header->hdcs->next;
 838         HeapFree(GetProcessHeap(), 0, tmp);
 839     }
 840
 841     if (header->dwCount)
 842     {
 843         TRACE("delayed for %p because object in use, count %d\n", obj, header->dwCount );
 844         header->dwCount |= 0x80000000; /* mark for delete */
 845         GDI_ReleaseObj( obj );
 846         return TRUE;
 847     }
 848
 849     TRACE("%p\n", obj );
 850
 851       /* Delete object */
 852
 853     if (header->funcs && header->funcs->pDeleteObject)
 854         return header->funcs->pDeleteObject( obj, header );
 855
 856     GDI_ReleaseObj( obj );
 857     return FALSE;
 858 }
 859
 860 /***********************************************************************
 861  *           GDI_hdc_using_object
 862  *
 863  * Call this if the dc requires DeleteObject notification
 864  */
 865 BOOL GDI_hdc_using_object(HGDIOBJ obj, HDC hdc)
 866 {
 867     GDIOBJHDR * header;
 868     struct hdc_list **pphdc;
 869
 870     TRACE("obj %p hdc %p\n", obj, hdc);
 871
 872     if (!(header = GDI_GetObjPtr( obj, MAGIC_DONTCARE ))) return FALSE;
 873
 874     if (!(header->wMagic & OBJECT_NOSYSTEM) &&
 875          (header->wMagic >= FIRST_MAGIC) && (header->wMagic <= LAST_MAGIC))
 876     {
 877         GDI_ReleaseObj(obj);
 878         return FALSE;
 879     }
 880
 881     for(pphdc = &header->hdcs; *pphdc; pphdc = &(*pphdc)->next)
 882         if((*pphdc)->hdc == hdc)
 883             break;
 884
 885     if(!*pphdc) {
 886         *pphdc = HeapAlloc(GetProcessHeap(), 0, sizeof(**pphdc));
 887         (*pphdc)->hdc = hdc;
 888         (*pphdc)->next = NULL;
 889     }
 890
 891     GDI_ReleaseObj(obj);
 892     return TRUE;
 893 }
 894
 895 /***********************************************************************
 896  *           GDI_hdc_not_using_object
 897  *
 898  */
 899 BOOL GDI_hdc_not_using_object(HGDIOBJ obj, HDC hdc)
 900 {
 901     GDIOBJHDR * header;
 902     struct hdc_list *phdc, **prev;
 903
 904     TRACE("obj %p hdc %p\n", obj, hdc);
 905
 906     if (!(header = GDI_GetObjPtr( obj, MAGIC_DONTCARE ))) return FALSE;
 907
 908     if (!(header->wMagic & OBJECT_NOSYSTEM) &&
 909          (header->wMagic >= FIRST_MAGIC) && (header->wMagic <= LAST_MAGIC))
 910     {
 911         GDI_ReleaseObj(obj);
 912         return FALSE;
 913     }
 914
 915     phdc = header->hdcs;
 916     prev = &header->hdcs;
 917
 918     while(phdc) {
 919         if(phdc->hdc == hdc) {
 920             *prev = phdc->next;
 921             HeapFree(GetProcessHeap(), 0, phdc);
 922             phdc = *prev;
 923         } else {
 924             prev = &phdc->next;
 925             phdc = phdc->next;
 926         }
 927     }
 928
 929     GDI_ReleaseObj(obj);
 930     return TRUE;
 931 }
 932
 933 /***********************************************************************
 934  *           GetStockObject    (GDI32.@)
 935  */
 936 HGDIOBJ WINAPI GetStockObject( INT obj )
 937 {
 938     HGDIOBJ ret;
 939     if ((obj < 0) || (obj >= NB_STOCK_OBJECTS)) return 0;
 940     ret = stock_objects[obj];
 941     TRACE("returning %p\n", ret );
 942     return ret;
 943 }
 944
 945
 946 /***********************************************************************
 947  *           GetObjectA    (GDI32.@)
 948  */
 949 INT WINAPI GetObjectA( HGDIOBJ handle, INT count, LPVOID buffer )
 950 {
 951     GDIOBJHDR * ptr;
 952     INT result = 0;
 953     TRACE("%p %d %p\n", handle, count, buffer );
 954
 955     if (!(ptr = GDI_GetObjPtr( handle, MAGIC_DONTCARE ))) return 0;
 956
 957     if (ptr->funcs && ptr->funcs->pGetObjectA)
 958         result = ptr->funcs->pGetObjectA( handle, ptr, count, buffer );
 959     else
 960         SetLastError( ERROR_INVALID_HANDLE );
 961
 962     GDI_ReleaseObj( handle );
 963     return result;
 964 }
 965
 966 /***********************************************************************
 967  *           GetObjectW    (GDI32.@)
 968  */
 969 INT WINAPI GetObjectW( HGDIOBJ handle, INT count, LPVOID buffer )
 970 {
 971     GDIOBJHDR * ptr;
 972     INT result = 0;
 973     TRACE("%p %d %p\n", handle, count, buffer );
 974
 975     if (!(ptr = GDI_GetObjPtr( handle, MAGIC_DONTCARE ))) return 0;
 976
 977     if (ptr->funcs && ptr->funcs->pGetObjectW)
 978         result = ptr->funcs->pGetObjectW( handle, ptr, count, buffer );
 979     else
 980         SetLastError( ERROR_INVALID_HANDLE );
 981
 982     GDI_ReleaseObj( handle );
 983     return result;
 984 }
 985
 986 /***********************************************************************
 987  *           GetObjectType    (GDI32.@)
 988  */
 989 DWORD WINAPI GetObjectType( HGDIOBJ handle )
 990 {
 991     GDIOBJHDR * ptr;
 992     INT result = 0;
 993     TRACE("%p\n", handle );
 994
 995     if (!(ptr = GDI_GetObjPtr( handle, MAGIC_DONTCARE )))
 996     {
 997         SetLastError( ERROR_INVALID_HANDLE );
 998         return 0;
 999     }
1000
1001     switch(GDIMAGIC(ptr->wMagic))
1002     {
1003       case PEN_MAGIC:
1004           result = OBJ_PEN;
1005           break;
1006       case EXT_PEN_MAGIC:
1007           result = OBJ_EXTPEN;
1008           break;
1009       case BRUSH_MAGIC:
1010           result = OBJ_BRUSH;
1011           break;
1012       case BITMAP_MAGIC:
1013           result = OBJ_BITMAP;
1014           break;
1015       case FONT_MAGIC:
1016           result = OBJ_FONT;
1017           break;
1018       case PALETTE_MAGIC:
1019           result = OBJ_PAL;
1020           break;
1021       case REGION_MAGIC:
1022           result = OBJ_REGION;
1023           break;
1024       case DC_MAGIC:
1025           result = OBJ_DC;
1026           break;
1027       case META_DC_MAGIC:
1028           result = OBJ_METADC;
1029           break;
1030       case METAFILE_MAGIC:
1031           result = OBJ_METAFILE;
1032           break;
1033       case METAFILE_DC_MAGIC:
1034           result = OBJ_METADC;
1035           break;
1036       case ENHMETAFILE_MAGIC:
1037           result = OBJ_ENHMETAFILE;
1038           break;
1039       case ENHMETAFILE_DC_MAGIC:
1040           result = OBJ_ENHMETADC;
1041           break;
1042       case MEMORY_DC_MAGIC:
1043           result = OBJ_MEMDC;
1044           break;
1045       default:
1046           FIXME("Magic %04x not implemented\n", GDIMAGIC(ptr->wMagic) );
1047           break;
1048     }
1049     GDI_ReleaseObj( handle );
1050     return result;
1051 }
1052
1053 /***********************************************************************
1054  *           GetCurrentObject           (GDI32.@)
1055  *
1056  * Get the currently selected object of a given type in a device context.
1057  *
1058  * PARAMS
1059  *  hdc  [I] Device context to get the current object from
1060  *  type [I] Type of current object to get (OBJ_* defines from "wingdi.h")
1061  *
1062  * RETURNS
1063  *  Success: The current object of the given type selected in hdc.
1064  *  Failure: A NULL handle.
1065  *
1066  * NOTES
1067  * - only the following object types are supported:
1068  *| OBJ_PEN
1069  *| OBJ_BRUSH
1070  *| OBJ_PAL
1071  *| OBJ_FONT
1072  *| OBJ_BITMAP
1073  */
1074 HGDIOBJ WINAPI GetCurrentObject(HDC hdc,UINT type)
1075 {
1076     HGDIOBJ ret = 0;
1077     DC * dc = get_dc_ptr( hdc );
1078
1079     if (!dc) return 0;
1080
1081     switch (type) {
1082         case OBJ_EXTPEN: /* fall through */
1083         case OBJ_PEN:    ret = dc->hPen; break;
1084         case OBJ_BRUSH:  ret = dc->hBrush; break;
1085         case OBJ_PAL:    ret = dc->hPalette; break;
1086         case OBJ_FONT:   ret = dc->hFont; break;
1087         case OBJ_BITMAP: ret = dc->hBitmap; break;
1088
1089         /* tests show that OBJ_REGION is explicitly ignored */
1090         case OBJ_REGION: break;
1091         default:
1092             /* the SDK only mentions those above */
1093             FIXME("(%p,%d): unknown type.\n",hdc,type);
1094             break;
1095     }
1096     release_dc_ptr( dc );
1097     return ret;
1098 }
1099
1100
1101 /***********************************************************************
1102  *           SelectObject    (GDI32.@)
1103  *
1104  * Select a Gdi object into a device context.
1105  *
1106  * PARAMS
1107  *  hdc  [I] Device context to associate the object with
1108  *  hObj [I] Gdi object to associate with hdc
1109  *
1110  * RETURNS
1111  *  Success: A non-NULL handle representing the previously selected object of
1112  *           the same type as hObj.
1113  *  Failure: A NULL object. If hdc is invalid, GetLastError() returns ERROR_INVALID_HANDLE.
1114  *           if hObj is not a valid object handle, no last error is set. In either
1115  *           case, hdc is unaffected by the call.
1116  */
1117 HGDIOBJ WINAPI SelectObject( HDC hdc, HGDIOBJ hObj )
1118 {
1119     HGDIOBJ ret = 0;
1120     GDIOBJHDR *header;
1121
1122     TRACE( "(%p,%p)\n", hdc, hObj );
1123
1124     header = GDI_GetObjPtr( hObj, MAGIC_DONTCARE );
1125     if (header)
1126     {
1127         const struct gdi_obj_funcs *funcs = header->funcs;
1128         GDI_ReleaseObj( hObj );
1129         if (funcs && funcs->pSelectObject) ret = funcs->pSelectObject( hObj, hdc );
1130     }
1131     return ret;
1132 }
1133
1134
1135 /***********************************************************************
1136  *           UnrealizeObject    (GDI32.@)
1137  */
1138 BOOL WINAPI UnrealizeObject( HGDIOBJ obj )
1139 {
1140     BOOL result = TRUE;
1141   /* Check if object is valid */
1142
1143     GDIOBJHDR * header = GDI_GetObjPtr( obj, MAGIC_DONTCARE );
1144     if (!header) return FALSE;
1145
1146     TRACE("%p\n", obj );
1147
1148       /* Unrealize object */
1149
1150     if (header->funcs && header->funcs->pUnrealizeObject)
1151         result = header->funcs->pUnrealizeObject( obj, header );
1152
1153     GDI_ReleaseObj( obj );
1154     return result;
1155 }
1156
1157
1158 /* Solid colors to enumerate */
1159 static const COLORREF solid_colors[] =
1160 { RGB(0x00,0x00,0x00), RGB(0xff,0xff,0xff),
1161 RGB(0xff,0x00,0x00), RGB(0x00,0xff,0x00),
1162 RGB(0x00,0x00,0xff), RGB(0xff,0xff,0x00),
1163 RGB(0xff,0x00,0xff), RGB(0x00,0xff,0xff),
1164 RGB(0x80,0x00,0x00), RGB(0x00,0x80,0x00),
1165 RGB(0x80,0x80,0x00), RGB(0x00,0x00,0x80),
1166 RGB(0x80,0x00,0x80), RGB(0x00,0x80,0x80),
1167 RGB(0x80,0x80,0x80), RGB(0xc0,0xc0,0xc0)
1168 };
1169
1170
1171 /***********************************************************************
1172  *           EnumObjects    (GDI32.@)
1173  */
1174 INT WINAPI EnumObjects( HDC hdc, INT nObjType,
1175                             GOBJENUMPROC lpEnumFunc, LPARAM lParam )
1176 {
1177     UINT i;
1178     INT retval = 0;
1179     LOGPEN pen;
1180     LOGBRUSH brush;
1181
1182     TRACE("%p %d %p %08lx\n", hdc, nObjType, lpEnumFunc, lParam );
1183     switch(nObjType)
1184     {
1185     case OBJ_PEN:
1186         /* Enumerate solid pens */
1187         for (i = 0; i < sizeof(solid_colors)/sizeof(solid_colors[0]); i++)
1188         {
1189             pen.lopnStyle   = PS_SOLID;
1190             pen.lopnWidth.x = 1;
1191             pen.lopnWidth.y = 0;
1192             pen.lopnColor   = solid_colors[i];
1193             retval = lpEnumFunc( &pen, lParam );
1194             TRACE("solid pen %08x, ret=%d\n",
1195                          solid_colors[i], retval);
1196             if (!retval) break;
1197         }
1198         break;
1199
1200     case OBJ_BRUSH:
1201         /* Enumerate solid brushes */
1202         for (i = 0; i < sizeof(solid_colors)/sizeof(solid_colors[0]); i++)
1203         {
1204             brush.lbStyle = BS_SOLID;
1205             brush.lbColor = solid_colors[i];
1206             brush.lbHatch = 0;
1207             retval = lpEnumFunc( &brush, lParam );
1208             TRACE("solid brush %08x, ret=%d\n",
1209                          solid_colors[i], retval);
1210             if (!retval) break;
1211         }
1212
1213         /* Now enumerate hatched brushes */
1214         if (retval) for (i = HS_HORIZONTAL; i <= HS_DIAGCROSS; i++)
1215         {
1216             brush.lbStyle = BS_HATCHED;
1217             brush.lbColor = RGB(0,0,0);
1218             brush.lbHatch = i;
1219             retval = lpEnumFunc( &brush, lParam );
1220             TRACE("hatched brush %d, ret=%d\n",
1221                          i, retval);
1222             if (!retval) break;
1223         }
1224         break;
1225
1226     default:
1227         /* FIXME: implement Win32 types */
1228         WARN("(%d): Invalid type\n", nObjType );
1229         break;
1230     }
1231     return retval;
1232 }
1233
1234
1235 /***********************************************************************
1236  *           SetObjectOwner    (GDI32.@)
1237  */
1238 void WINAPI SetObjectOwner( HGDIOBJ handle, HANDLE owner )
1239 {
1240     /* Nothing to do */
1241 }
1242
1243
1244 /***********************************************************************
1245  *           MakeObjectPrivate    (GDI.463)
1246  *
1247  * What does that mean ?
1248  * Some little docu can be found in "Undocumented Windows",
1249  * but this is basically useless.
1250  * At least we know that this flags the GDI object's wMagic
1251  * with 0x2000 (OBJECT_PRIVATE), so we just do it.
1252  * But Wine doesn't react on that yet.
1253  */
1254 void WINAPI MakeObjectPrivate16( HGDIOBJ16 handle16, BOOL16 private )
1255 {
1256     HGDIOBJ handle = HGDIOBJ_32( handle16 );
1257     GDIOBJHDR *ptr = GDI_GetObjPtr( handle, MAGIC_DONTCARE );
1258     if (!ptr)
1259     {
1260         ERR("invalid GDI object %p !\n", handle);
1261         return;
1262     }
1263     ptr->wMagic |= OBJECT_PRIVATE;
1264     GDI_ReleaseObj( handle );
1265 }
1266
1267
1268 /***********************************************************************
1269  *           GdiFlush    (GDI32.@)
1270  */
1271 BOOL WINAPI GdiFlush(void)
1272 {
1273     return TRUE;  /* FIXME */
1274 }
1275
1276
1277 /***********************************************************************
1278  *           GdiGetBatchLimit    (GDI32.@)
1279  */
1280 DWORD WINAPI GdiGetBatchLimit(void)
1281 {
1282     return 1;  /* FIXME */
1283 }
1284
1285
1286 /***********************************************************************
1287  *           GdiSetBatchLimit    (GDI32.@)
1288  */
1289 DWORD WINAPI GdiSetBatchLimit( DWORD limit )
1290 {
1291     return 1; /* FIXME */
1292 }
1293
1294
1295 /*******************************************************************
1296  *      GetColorAdjustment [GDI32.@]
1297  *
1298  *
1299  */
1300 BOOL WINAPI GetColorAdjustment(HDC hdc, LPCOLORADJUSTMENT lpca)
1301 {
1302         FIXME("GetColorAdjustment, stub\n");
1303         return 0;
1304 }
1305
1306 /*******************************************************************
1307  *      GdiComment [GDI32.@]
1308  *
1309  *
1310  */
1311 BOOL WINAPI GdiComment(HDC hdc, UINT cbSize, const BYTE *lpData)
1312 {
1313     DC *dc = get_dc_ptr(hdc);
1314     BOOL ret = FALSE;
1315     if(dc)
1316     {
1317         if (dc->funcs->pGdiComment)
1318             ret = dc->funcs->pGdiComment( dc->physDev, cbSize, lpData );
1319         release_dc_ptr( dc );
1320     }
1321     return ret;
1322 }
1323
1324 /*******************************************************************
1325  *      SetColorAdjustment [GDI32.@]
1326  *
1327  *
1328  */
1329 BOOL WINAPI SetColorAdjustment(HDC hdc, const COLORADJUSTMENT* lpca)
1330 {
1331         FIXME("SetColorAdjustment, stub\n");
1332         return 0;
1333 }