dlls/user/resource.c

   1 /*
   2  * USER resource functions
   3  *
   4  * Copyright 1993 Robert J. Amstadt
   5  * Copyright 1995 Alexandre Julliard
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include <stdarg.h>
  23
  24 #include "windef.h"
  25 #include "winbase.h"
  26 #include "winerror.h"
  27 #include "winnls.h"
  28 #include "wine/winbase16.h"
  29 #include "wine/winuser16.h"
  30 #include "wownt32.h"
  31 #include "wine/debug.h"
  32
  33 WINE_DEFAULT_DEBUG_CHANNEL(resource);
  34 WINE_DECLARE_DEBUG_CHANNEL(accel);
  35
  36 /* this is the 8 byte accel struct used in Win32 resources (internal only) */
  37 typedef struct
  38 {
  39     WORD   fVirt;
  40     WORD   key;
  41     WORD   cmd;
  42     WORD   pad;
  43 } PE_ACCEL, *LPPE_ACCEL;
  44
  45 /**********************************************************************
  46  *                      LoadAccelerators        [USER.177]
  47  */
  48 HACCEL16 WINAPI LoadAccelerators16(HINSTANCE16 instance, LPCSTR lpTableName)
  49 {
  50     HRSRC16     hRsrc;
  51
  52     TRACE_(accel)("%04x %s\n", instance, debugstr_a(lpTableName) );
  53
  54     if (!(hRsrc = FindResource16( instance, lpTableName, (LPSTR)RT_ACCELERATOR ))) {
  55       WARN_(accel)("couldn't find accelerator table resource\n");
  56       return 0;
  57     }
  58
  59     TRACE_(accel)("returning HACCEL 0x%x\n", hRsrc);
  60     return LoadResource16(instance,hRsrc);
  61 }
  62
  63 /**********************************************************************
  64  *                      LoadAcceleratorsW       (USER32.@)
  65  * The image layout seems to look like this (not 100% sure):
  66  * 00:  WORD    type            type of accelerator
  67  * 02:  WORD    event
  68  * 04:  WORD    IDval
  69  * 06:  WORD    pad             (to DWORD boundary)
  70  */
  71 HACCEL WINAPI LoadAcceleratorsW(HINSTANCE instance,LPCWSTR lpTableName)
  72 {
  73     HRSRC hRsrc;
  74     HACCEL hMem;
  75     HACCEL16 hRetval=0;
  76     DWORD size;
  77
  78     if (HIWORD(lpTableName))
  79         TRACE_(accel)("%p '%s'\n",
  80                       (LPVOID)instance, (const char *)( lpTableName ) );
  81     else
  82         TRACE_(accel)("%p 0x%04x\n",
  83                        (LPVOID)instance, LOWORD(lpTableName) );
  84
  85     if (!(hRsrc = FindResourceW( instance, lpTableName, (LPWSTR)RT_ACCELERATOR )))
  86     {
  87       WARN_(accel)("couldn't find accelerator table resource\n");
  88     } else {
  89       hMem = LoadResource( instance, hRsrc );
  90       size = SizeofResource( instance, hRsrc );
  91       if(size>=sizeof(PE_ACCEL))
  92       {
  93         LPPE_ACCEL accel_table = (LPPE_ACCEL) hMem;
  94         LPACCEL16 accel16;
  95         int i,nrofaccells = size/sizeof(PE_ACCEL);
  96
  97         hRetval = GlobalAlloc16(0,sizeof(ACCEL16)*nrofaccells);
  98         accel16 = (LPACCEL16)GlobalLock16(hRetval);
  99         for (i=0;i<nrofaccells;i++) {
 100           accel16[i].fVirt = accel_table[i].fVirt & 0x7f;
 101           accel16[i].key = accel_table[i].key;
 102           if( !(accel16[i].fVirt & FVIRTKEY) )
 103             accel16[i].key &= 0x00ff;
 104           accel16[i].cmd = accel_table[i].cmd;
 105         }
 106         accel16[i-1].fVirt |= 0x80;
 107       }
 108     }
 109     TRACE_(accel)("returning HACCEL %p\n", hRsrc);
 110     return HACCEL_32(hRetval);
 111 }
 112
 113 /***********************************************************************
 114  *              LoadAcceleratorsA   (USER32.@)
 115  */
 116 HACCEL WINAPI LoadAcceleratorsA(HINSTANCE instance,LPCSTR lpTableName)
 117 {
 118     INT len;
 119     LPWSTR uni;
 120     HACCEL result = 0;
 121
 122     if (!HIWORD(lpTableName)) return LoadAcceleratorsW( instance, (LPCWSTR)lpTableName );
 123
 124     len = MultiByteToWideChar( CP_ACP, 0, lpTableName, -1, NULL, 0 );
 125     if ((uni = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) )))
 126     {
 127         MultiByteToWideChar( CP_ACP, 0, lpTableName, -1, uni, len );
 128         result = LoadAcceleratorsW(instance,uni);
 129         HeapFree( GetProcessHeap(), 0, uni);
 130     }
 131     return result;
 132 }
 133
 134 /**********************************************************************
 135  *             CopyAcceleratorTableA   (USER32.@)
 136  */
 137 INT WINAPI CopyAcceleratorTableA(HACCEL src, LPACCEL dst, INT entries)
 138 {
 139   return CopyAcceleratorTableW(src, dst, entries);
 140 }
 141
 142 /**********************************************************************
 143  *             CopyAcceleratorTableW   (USER32.@)
 144  *
 145  * By mortene@pvv.org 980321
 146  */
 147 INT WINAPI CopyAcceleratorTableW(HACCEL src, LPACCEL dst,
 148                                      INT entries)
 149 {
 150   int i,xsize;
 151   LPACCEL16 accel = (LPACCEL16)GlobalLock16(HACCEL_16(src));
 152   BOOL done = FALSE;
 153
 154   /* Do parameter checking to avoid the explosions and the screaming
 155      as far as possible. */
 156   if((dst && (entries < 1)) || (src == NULL) || !accel) {
 157     WARN_(accel)("Application sent invalid parameters (%p %p %d).\n",
 158          (LPVOID)src, (LPVOID)dst, entries);
 159     return 0;
 160   }
 161   xsize = GlobalSize16(HACCEL_16(src))/sizeof(ACCEL16);
 162   if (xsize<entries) entries=xsize;
 163
 164   i=0;
 165   while(!done) {
 166     /* Spit out some debugging information. */
 167     TRACE_(accel)("accel %d: type 0x%02x, event '%c', IDval 0x%04x.\n",
 168           i, accel[i].fVirt, accel[i].key, accel[i].cmd);
 169
 170     /* Copy data to the destination structure array (if dst == NULL,
 171        we're just supposed to count the number of entries). */
 172     if(dst) {
 173       dst[i].fVirt = accel[i].fVirt&0x7f;
 174       dst[i].key = accel[i].key;
 175       dst[i].cmd = accel[i].cmd;
 176
 177       /* Check if we've reached the end of the application supplied
 178          accelerator table. */
 179       if(i+1 == entries)
 180         done = TRUE;
 181     }
 182
 183     /* The highest order bit seems to mark the end of the accelerator
 184        resource table, but not always. Use GlobalSize() check too. */
 185     if((accel[i].fVirt & 0x80) != 0) done = TRUE;
 186
 187     i++;
 188   }
 189
 190   return i;
 191 }
 192
 193 /*********************************************************************
 194  *                    CreateAcceleratorTableA   (USER32.@)
 195  *
 196  * By mortene@pvv.org 980321
 197  */
 198 HACCEL WINAPI CreateAcceleratorTableA(LPACCEL lpaccel, INT cEntries)
 199 {
 200   HACCEL        hAccel;
 201   LPACCEL16     accel;
 202   int           i;
 203
 204   /* Do parameter checking just in case someone's trying to be
 205      funny. */
 206   if(cEntries < 1) {
 207     WARN_(accel)("Application sent invalid parameters (%p %d).\n",
 208          lpaccel, cEntries);
 209     SetLastError(ERROR_INVALID_PARAMETER);
 210     return NULL;
 211   }
 212
 213   /* Allocate memory and copy the table. */
 214   hAccel = HACCEL_32(GlobalAlloc16(0,cEntries*sizeof(ACCEL16)));
 215
 216   TRACE_(accel)("handle %p\n", hAccel);
 217   if(!hAccel) {
 218     ERR_(accel)("Out of memory.\n");
 219     SetLastError(ERROR_NOT_ENOUGH_MEMORY);
 220     return NULL;
 221   }
 222   accel = GlobalLock16(HACCEL_16(hAccel));
 223   for (i=0;i<cEntries;i++) {
 224     accel[i].fVirt = lpaccel[i].fVirt&0x7f;
 225     accel[i].key = lpaccel[i].key;
 226     if( !(accel[i].fVirt & FVIRTKEY) )
 227       accel[i].key &= 0x00ff;
 228     accel[i].cmd = lpaccel[i].cmd;
 229   }
 230   /* Set the end-of-table terminator. */
 231   accel[cEntries-1].fVirt |= 0x80;
 232
 233   TRACE_(accel)("Allocated accelerator handle %p with %d entries\n", hAccel,cEntries);
 234   return hAccel;
 235 }
 236
 237 /*********************************************************************
 238  *                    CreateAcceleratorTableW   (USER32.@)
 239  *
 240  *
 241  */
 242 HACCEL WINAPI CreateAcceleratorTableW(LPACCEL lpaccel, INT cEntries)
 243 {
 244   HACCEL        hAccel;
 245   LPACCEL16     accel;
 246   int           i;
 247   char          ckey;
 248
 249   /* Do parameter checking just in case someone's trying to be
 250      funny. */
 251   if(cEntries < 1) {
 252     WARN_(accel)("Application sent invalid parameters (%p %d).\n",
 253          lpaccel, cEntries);
 254     SetLastError(ERROR_INVALID_PARAMETER);
 255     return NULL;
 256   }
 257
 258   /* Allocate memory and copy the table. */
 259   hAccel = HACCEL_32(GlobalAlloc16(0,cEntries*sizeof(ACCEL16)));
 260
 261   TRACE_(accel)("handle %p\n", hAccel);
 262   if(!hAccel) {
 263     ERR_(accel)("Out of memory.\n");
 264     SetLastError(ERROR_NOT_ENOUGH_MEMORY);
 265     return NULL;
 266   }
 267   accel = GlobalLock16(HACCEL_16(hAccel));
 268
 269
 270   for (i=0;i<cEntries;i++) {
 271        accel[i].fVirt = lpaccel[i].fVirt&0x7f;
 272        if( !(accel[i].fVirt & FVIRTKEY) ) {
 273           ckey = (char) lpaccel[i].key;
 274          if(!MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, &ckey, 1, &accel[i].key, 1))
 275             WARN_(accel)("Error converting ASCII accelerator table to Unicode\n");
 276        }
 277        else
 278          accel[i].key = lpaccel[i].key;
 279        accel[i].cmd = lpaccel[i].cmd;
 280   }
 281
 282   /* Set the end-of-table terminator. */
 283   accel[cEntries-1].fVirt |= 0x80;
 284
 285   TRACE_(accel)("Allocated accelerator handle %p\n", hAccel);
 286   return hAccel;
 287 }
 288
 289 /******************************************************************************
 290  * DestroyAcceleratorTable [USER32.@]
 291  * Destroys an accelerator table
 292  *
 293  * NOTES
 294  *    By mortene@pvv.org 980321
 295  *
 296  * PARAMS
 297  *    handle [I] Handle to accelerator table
 298  *
 299  * RETURNS
 300  *    Success: TRUE
 301  *    Failure: FALSE
 302  */
 303 BOOL WINAPI DestroyAcceleratorTable( HACCEL handle )
 304 {
 305     if( !handle )
 306         return FALSE;
 307     return !GlobalFree16(HACCEL_16(handle));
 308 }
 309
 310 /**********************************************************************
 311  *     LoadString   (USER.176)
 312  */
 313 INT16 WINAPI LoadString16( HINSTANCE16 instance, UINT16 resource_id,
 314                            LPSTR buffer, INT16 buflen )
 315 {
 316     HGLOBAL16 hmem;
 317     HRSRC16 hrsrc;
 318     unsigned char *p;
 319     int string_num;
 320     int i;
 321
 322     TRACE("inst=%04x id=%04x buff=%p len=%d\n",
 323           instance, resource_id, buffer, buflen);
 324
 325     hrsrc = FindResource16( instance, MAKEINTRESOURCEA((resource_id>>4)+1), (LPSTR)RT_STRING );
 326     if (!hrsrc) return 0;
 327     hmem = LoadResource16( instance, hrsrc );
 328     if (!hmem) return 0;
 329
 330     p = LockResource16(hmem);
 331     string_num = resource_id & 0x000f;
 332     for (i = 0; i < string_num; i++)
 333         p += *p + 1;
 334
 335     TRACE("strlen = %d\n", (int)*p );
 336
 337     if (buffer == NULL) return *p;
 338     i = min(buflen - 1, *p);
 339     if (i > 0) {
 340         memcpy(buffer, p + 1, i);
 341         buffer[i] = '\0';
 342     } else {
 343         if (buflen > 1) {
 344             buffer[0] = '\0';
 345             return 0;
 346         }
 347         WARN("Don't know why caller gave buflen=%d *p=%d trying to obtain string '%s'\n", buflen, *p, p + 1);
 348     }
 349     FreeResource16( hmem );
 350
 351     TRACE("'%s' loaded !\n", buffer);
 352     return i;
 353 }
 354
 355 /**********************************************************************
 356  *      LoadStringW             (USER32.@)
 357  */
 358 INT WINAPI LoadStringW( HINSTANCE instance, UINT resource_id,
 359                             LPWSTR buffer, INT buflen )
 360 {
 361     HGLOBAL hmem;
 362     HRSRC hrsrc;
 363     WCHAR *p;
 364     int string_num;
 365     int i;
 366
 367     TRACE("instance = %p, id = %04x, buffer = %p, length = %d\n",
 368           instance, resource_id, buffer, buflen);
 369
 370     /* Use loword (incremented by 1) as resourceid */
 371     hrsrc = FindResourceW( instance, MAKEINTRESOURCEW((LOWORD(resource_id) >> 4) + 1),
 372                            (LPWSTR)RT_STRING );
 373     if (!hrsrc) return 0;
 374     hmem = LoadResource( instance, hrsrc );
 375     if (!hmem) return 0;
 376
 377     p = LockResource(hmem);
 378     string_num = resource_id & 0x000f;
 379     for (i = 0; i < string_num; i++)
 380         p += *p + 1;
 381
 382     TRACE("strlen = %d\n", (int)*p );
 383
 384     if (buffer == NULL) return *p;
 385     i = min(buflen - 1, *p);
 386     if (i > 0) {
 387         memcpy(buffer, p + 1, i * sizeof (WCHAR));
 388         buffer[i] = (WCHAR) 0;
 389     } else {
 390         if (buflen > 1) {
 391             buffer[0] = (WCHAR) 0;
 392             return 0;
 393         }
 394     }
 395
 396     TRACE("%s loaded !\n", debugstr_w(buffer));
 397     return i;
 398 }
 399
 400 /**********************************************************************
 401  *      LoadStringA     (USER32.@)
 402  */
 403 INT WINAPI LoadStringA( HINSTANCE instance, UINT resource_id,
 404                             LPSTR buffer, INT buflen )
 405 {
 406     INT    retval;
 407     LPWSTR wbuf;
 408
 409     TRACE("instance = %p, id = %04x, buffer = %p, length = %d\n",
 410           instance, resource_id, buffer, buflen);
 411
 412     if(buffer == NULL) /* asked size of string */
 413         return LoadStringW(instance, resource_id, NULL, 0);
 414
 415     wbuf = HeapAlloc(GetProcessHeap(), 0, buflen * sizeof(WCHAR));
 416     if(!wbuf)
 417         return 0;
 418
 419     retval = LoadStringW(instance, resource_id, wbuf, buflen);
 420     if(retval != 0)
 421     {
 422         retval = WideCharToMultiByte(CP_ACP, 0, wbuf, retval, buffer, buflen - 1, NULL, NULL);
 423         buffer[retval] = 0;
 424         TRACE("%s loaded !\n", debugstr_a(buffer));
 425     }
 426     else buffer[0] = 0;    /* no check of buflen here */
 427     HeapFree( GetProcessHeap(), 0, wbuf );
 428
 429     return retval;
 430 }
 431
 432 /**********************************************************************
 433  *      GetGuiResources (USER32.@)
 434  */
 435 DWORD WINAPI GetGuiResources( HANDLE hProcess, DWORD uiFlags )
 436 {
 437     FIXME("(%p,%x): stub\n",hProcess,uiFlags);
 438     SetLastError( ERROR_CALL_NOT_IMPLEMENTED );
 439     return 0;
 440 }