dlls/user32/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 "winternl.h"
  28 #include "winnls.h"
  29 #include "wine/winbase16.h"
  30 #include "wine/winuser16.h"
  31 #include "wownt32.h"
  32 #include "wine/debug.h"
  33
  34 WINE_DEFAULT_DEBUG_CHANNEL(resource);
  35 WINE_DECLARE_DEBUG_CHANNEL(accel);
  36
  37 /* this is the 8 byte accel struct used in Win32 resources (internal only) */
  38 typedef struct
  39 {
  40     WORD   fVirt;
  41     WORD   key;
  42     WORD   cmd;
  43     WORD   pad;
  44 } PE_ACCEL, *LPPE_ACCEL;
  45
  46 /**********************************************************************
  47  *                      LoadAccelerators        [USER.177]
  48  */
  49 HACCEL16 WINAPI LoadAccelerators16(HINSTANCE16 instance, LPCSTR lpTableName)
  50 {
  51     HRSRC16     hRsrc;
  52
  53     TRACE_(accel)("%04x %s\n", instance, debugstr_a(lpTableName) );
  54
  55     if (!(hRsrc = FindResource16( instance, lpTableName, (LPSTR)RT_ACCELERATOR ))) {
  56       WARN_(accel)("couldn't find accelerator table resource\n");
  57       return 0;
  58     }
  59
  60     TRACE_(accel)("returning HACCEL 0x%x\n", hRsrc);
  61     return LoadResource16(instance,hRsrc);
  62 }
  63
  64 /**********************************************************************
  65  *                      LoadAcceleratorsW       (USER32.@)
  66  * The image layout seems to look like this (not 100% sure):
  67  * 00:  WORD    type            type of accelerator
  68  * 02:  WORD    event
  69  * 04:  WORD    IDval
  70  * 06:  WORD    pad             (to DWORD boundary)
  71  */
  72 HACCEL WINAPI LoadAcceleratorsW(HINSTANCE instance,LPCWSTR lpTableName)
  73 {
  74     HRSRC hRsrc;
  75     HACCEL hMem;
  76     HACCEL16 hRetval=0;
  77     DWORD size;
  78
  79     if (HIWORD(lpTableName))
  80         TRACE_(accel)("%p '%s'\n",
  81                       (LPVOID)instance, (const char *)( lpTableName ) );
  82     else
  83         TRACE_(accel)("%p 0x%04x\n",
  84                        (LPVOID)instance, LOWORD(lpTableName) );
  85
  86     if (!(hRsrc = FindResourceW( instance, lpTableName, (LPWSTR)RT_ACCELERATOR )))
  87     {
  88       WARN_(accel)("couldn't find accelerator table resource\n");
  89     } else {
  90       hMem = LoadResource( instance, hRsrc );
  91       size = SizeofResource( instance, hRsrc );
  92       if(size>=sizeof(PE_ACCEL))
  93       {
  94         LPPE_ACCEL accel_table = (LPPE_ACCEL) hMem;
  95         LPACCEL16 accel16;
  96         int i,nrofaccells = size/sizeof(PE_ACCEL);
  97
  98         hRetval = GlobalAlloc16(0,sizeof(ACCEL16)*nrofaccells);
  99         accel16 = (LPACCEL16)GlobalLock16(hRetval);
 100         for (i=0;i<nrofaccells;i++) {
 101           accel16[i].fVirt = accel_table[i].fVirt & 0x7f;
 102           accel16[i].key = accel_table[i].key;
 103           if( !(accel16[i].fVirt & FVIRTKEY) )
 104             accel16[i].key &= 0x00ff;
 105           accel16[i].cmd = accel_table[i].cmd;
 106         }
 107         accel16[i-1].fVirt |= 0x80;
 108       }
 109     }
 110     TRACE_(accel)("returning HACCEL %p\n", hRsrc);
 111     return HACCEL_32(hRetval);
 112 }
 113
 114 /***********************************************************************
 115  *              LoadAcceleratorsA   (USER32.@)
 116  */
 117 HACCEL WINAPI LoadAcceleratorsA(HINSTANCE instance,LPCSTR lpTableName)
 118 {
 119     INT len;
 120     LPWSTR uni;
 121     HACCEL result = 0;
 122
 123     if (!HIWORD(lpTableName)) return LoadAcceleratorsW( instance, (LPCWSTR)lpTableName );
 124
 125     len = MultiByteToWideChar( CP_ACP, 0, lpTableName, -1, NULL, 0 );
 126     if ((uni = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) )))
 127     {
 128         MultiByteToWideChar( CP_ACP, 0, lpTableName, -1, uni, len );
 129         result = LoadAcceleratorsW(instance,uni);
 130         HeapFree( GetProcessHeap(), 0, uni);
 131     }
 132     return result;
 133 }
 134
 135 /**********************************************************************
 136  *             CopyAcceleratorTableA   (USER32.@)
 137  */
 138 INT WINAPI CopyAcceleratorTableA(HACCEL src, LPACCEL dst, INT entries)
 139 {
 140   return CopyAcceleratorTableW(src, dst, entries);
 141 }
 142
 143 /**********************************************************************
 144  *             CopyAcceleratorTableW   (USER32.@)
 145  *
 146  * By mortene@pvv.org 980321
 147  */
 148 INT WINAPI CopyAcceleratorTableW(HACCEL src, LPACCEL dst,
 149                                      INT entries)
 150 {
 151   int i,xsize;
 152   LPACCEL16 accel = (LPACCEL16)GlobalLock16(HACCEL_16(src));
 153   BOOL done = FALSE;
 154
 155   /* Do parameter checking to avoid the explosions and the screaming
 156      as far as possible. */
 157   if((dst && (entries < 1)) || (src == NULL) || !accel) {
 158     WARN_(accel)("Application sent invalid parameters (%p %p %d).\n",
 159          (LPVOID)src, (LPVOID)dst, entries);
 160     return 0;
 161   }
 162   xsize = GlobalSize16(HACCEL_16(src))/sizeof(ACCEL16);
 163   if (xsize<entries) entries=xsize;
 164
 165   i=0;
 166   while(!done) {
 167     /* Spit out some debugging information. */
 168     TRACE_(accel)("accel %d: type 0x%02x, event '%c', IDval 0x%04x.\n",
 169           i, accel[i].fVirt, accel[i].key, accel[i].cmd);
 170
 171     /* Copy data to the destination structure array (if dst == NULL,
 172        we're just supposed to count the number of entries). */
 173     if(dst) {
 174       dst[i].fVirt = accel[i].fVirt&0x7f;
 175       dst[i].key = accel[i].key;
 176       dst[i].cmd = accel[i].cmd;
 177
 178       /* Check if we've reached the end of the application supplied
 179          accelerator table. */
 180       if(i+1 == entries)
 181         done = TRUE;
 182     }
 183
 184     /* The highest order bit seems to mark the end of the accelerator
 185        resource table, but not always. Use GlobalSize() check too. */
 186     if((accel[i].fVirt & 0x80) != 0) done = TRUE;
 187
 188     i++;
 189   }
 190
 191   return i;
 192 }
 193
 194 /*********************************************************************
 195  *                    CreateAcceleratorTableA   (USER32.@)
 196  *
 197  * By mortene@pvv.org 980321
 198  */
 199 HACCEL WINAPI CreateAcceleratorTableA(LPACCEL lpaccel, INT cEntries)
 200 {
 201   HACCEL        hAccel;
 202   LPACCEL16     accel;
 203   int           i;
 204
 205   /* Do parameter checking just in case someone's trying to be
 206      funny. */
 207   if(cEntries < 1) {
 208     WARN_(accel)("Application sent invalid parameters (%p %d).\n",
 209          lpaccel, cEntries);
 210     SetLastError(ERROR_INVALID_PARAMETER);
 211     return NULL;
 212   }
 213
 214   /* Allocate memory and copy the table. */
 215   hAccel = HACCEL_32(GlobalAlloc16(0,cEntries*sizeof(ACCEL16)));
 216
 217   TRACE_(accel)("handle %p\n", hAccel);
 218   if(!hAccel) {
 219     ERR_(accel)("Out of memory.\n");
 220     SetLastError(ERROR_NOT_ENOUGH_MEMORY);
 221     return NULL;
 222   }
 223   accel = GlobalLock16(HACCEL_16(hAccel));
 224   for (i=0;i<cEntries;i++) {
 225     accel[i].fVirt = lpaccel[i].fVirt&0x7f;
 226     accel[i].key = lpaccel[i].key;
 227     if( !(accel[i].fVirt & FVIRTKEY) )
 228       accel[i].key &= 0x00ff;
 229     accel[i].cmd = lpaccel[i].cmd;
 230   }
 231   /* Set the end-of-table terminator. */
 232   accel[cEntries-1].fVirt |= 0x80;
 233
 234   TRACE_(accel)("Allocated accelerator handle %p with %d entries\n", hAccel,cEntries);
 235   return hAccel;
 236 }
 237
 238 /*********************************************************************
 239  *                    CreateAcceleratorTableW   (USER32.@)
 240  *
 241  *
 242  */
 243 HACCEL WINAPI CreateAcceleratorTableW(LPACCEL lpaccel, INT cEntries)
 244 {
 245   HACCEL        hAccel;
 246   LPACCEL16     accel;
 247   int           i;
 248   char          ckey;
 249
 250   /* Do parameter checking just in case someone's trying to be
 251      funny. */
 252   if(cEntries < 1) {
 253     WARN_(accel)("Application sent invalid parameters (%p %d).\n",
 254          lpaccel, cEntries);
 255     SetLastError(ERROR_INVALID_PARAMETER);
 256     return NULL;
 257   }
 258
 259   /* Allocate memory and copy the table. */
 260   hAccel = HACCEL_32(GlobalAlloc16(0,cEntries*sizeof(ACCEL16)));
 261
 262   TRACE_(accel)("handle %p\n", hAccel);
 263   if(!hAccel) {
 264     ERR_(accel)("Out of memory.\n");
 265     SetLastError(ERROR_NOT_ENOUGH_MEMORY);
 266     return NULL;
 267   }
 268   accel = GlobalLock16(HACCEL_16(hAccel));
 269
 270
 271   for (i=0;i<cEntries;i++) {
 272        accel[i].fVirt = lpaccel[i].fVirt&0x7f;
 273        if( !(accel[i].fVirt & FVIRTKEY) ) {
 274           ckey = (char) lpaccel[i].key;
 275          if(!MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, &ckey, 1, &accel[i].key, 1))
 276             WARN_(accel)("Error converting ASCII accelerator table to Unicode\n");
 277        }
 278        else
 279          accel[i].key = lpaccel[i].key;
 280        accel[i].cmd = lpaccel[i].cmd;
 281   }
 282
 283   /* Set the end-of-table terminator. */
 284   accel[cEntries-1].fVirt |= 0x80;
 285
 286   TRACE_(accel)("Allocated accelerator handle %p\n", hAccel);
 287   return hAccel;
 288 }
 289
 290 /******************************************************************************
 291  * DestroyAcceleratorTable [USER32.@]
 292  * Destroys an accelerator table
 293  *
 294  * NOTES
 295  *    By mortene@pvv.org 980321
 296  *
 297  * PARAMS
 298  *    handle [I] Handle to accelerator table
 299  *
 300  * RETURNS
 301  *    Success: TRUE
 302  *    Failure: FALSE
 303  */
 304 BOOL WINAPI DestroyAcceleratorTable( HACCEL handle )
 305 {
 306     if( !handle )
 307         return FALSE;
 308     return !GlobalFree16(HACCEL_16(handle));
 309 }
 310
 311 /**********************************************************************
 312  *     LoadString   (USER.176)
 313  */
 314 INT16 WINAPI LoadString16( HINSTANCE16 instance, UINT16 resource_id,
 315                            LPSTR buffer, INT16 buflen )
 316 {
 317     HGLOBAL16 hmem;
 318     HRSRC16 hrsrc;
 319     unsigned char *p;
 320     int string_num;
 321     int i;
 322
 323     TRACE("inst=%04x id=%04x buff=%p len=%d\n",
 324           instance, resource_id, buffer, buflen);
 325
 326     hrsrc = FindResource16( instance, MAKEINTRESOURCEA((resource_id>>4)+1), (LPSTR)RT_STRING );
 327     if (!hrsrc) return 0;
 328     hmem = LoadResource16( instance, hrsrc );
 329     if (!hmem) return 0;
 330
 331     p = LockResource16(hmem);
 332     string_num = resource_id & 0x000f;
 333     for (i = 0; i < string_num; i++)
 334         p += *p + 1;
 335
 336     TRACE("strlen = %d\n", (int)*p );
 337
 338     if (buffer == NULL) return *p;
 339     i = min(buflen - 1, *p);
 340     if (i > 0) {
 341         memcpy(buffer, p + 1, i);
 342         buffer[i] = '\0';
 343     } else {
 344         if (buflen > 1) {
 345             buffer[0] = '\0';
 346             return 0;
 347         }
 348         WARN("Don't know why caller gave buflen=%d *p=%d trying to obtain string '%s'\n", buflen, *p, p + 1);
 349     }
 350     FreeResource16( hmem );
 351
 352     TRACE("'%s' loaded !\n", buffer);
 353     return i;
 354 }
 355
 356 /**********************************************************************
 357  *      LoadStringW             (USER32.@)
 358  */
 359 INT WINAPI LoadStringW( HINSTANCE instance, UINT resource_id,
 360                             LPWSTR buffer, INT buflen )
 361 {
 362     HGLOBAL hmem;
 363     HRSRC hrsrc;
 364     WCHAR *p;
 365     int string_num;
 366     int i;
 367
 368     TRACE("instance = %p, id = %04x, buffer = %p, length = %d\n",
 369           instance, resource_id, buffer, buflen);
 370
 371     if(buffer == NULL)
 372         return 0;
 373
 374     /* Use loword (incremented by 1) as resourceid */
 375     hrsrc = FindResourceW( instance, MAKEINTRESOURCEW((LOWORD(resource_id) >> 4) + 1),
 376                            (LPWSTR)RT_STRING );
 377     if (!hrsrc) return 0;
 378     hmem = LoadResource( instance, hrsrc );
 379     if (!hmem) return 0;
 380
 381     p = LockResource(hmem);
 382     string_num = resource_id & 0x000f;
 383     for (i = 0; i < string_num; i++)
 384         p += *p + 1;
 385
 386     TRACE("strlen = %d\n", (int)*p );
 387
 388     /*if buflen == 0, then return a read-only pointer to the resource itself in buffer
 389     it is assumed that buffer is actually a (LPWSTR *) */
 390     if(buflen == 0)
 391     {
 392         *((LPWSTR *)buffer) = p + 1;
 393         return *p;
 394     }
 395
 396     i = min(buflen - 1, *p);
 397     if (i > 0) {
 398         memcpy(buffer, p + 1, i * sizeof (WCHAR));
 399         buffer[i] = (WCHAR) 0;
 400     } else {
 401         if (buflen > 1) {
 402             buffer[0] = (WCHAR) 0;
 403             return 0;
 404         }
 405     }
 406
 407     TRACE("%s loaded !\n", debugstr_w(buffer));
 408     return i;
 409 }
 410
 411 /**********************************************************************
 412  *      LoadStringA     (USER32.@)
 413  */
 414 INT WINAPI LoadStringA( HINSTANCE instance, UINT resource_id, LPSTR buffer, INT buflen )
 415 {
 416     HGLOBAL hmem;
 417     HRSRC hrsrc;
 418     DWORD retval = 0;
 419
 420     TRACE("instance = %p, id = %04x, buffer = %p, length = %d\n",
 421           instance, resource_id, buffer, buflen);
 422
 423     if (!buflen) return -1;
 424
 425     /* Use loword (incremented by 1) as resourceid */
 426     if ((hrsrc = FindResourceW( instance, MAKEINTRESOURCEW((LOWORD(resource_id) >> 4) + 1),
 427                                 (LPWSTR)RT_STRING )) &&
 428         (hmem = LoadResource( instance, hrsrc )))
 429     {
 430         const WCHAR *p = LockResource(hmem);
 431         unsigned int id = resource_id & 0x000f;
 432
 433         while (id--) p += *p + 1;
 434
 435         RtlUnicodeToMultiByteN( buffer, buflen - 1, &retval, p + 1, *p * sizeof(WCHAR) );
 436     }
 437     buffer[retval] = 0;
 438     TRACE("returning %s\n", debugstr_a(buffer));
 439     return retval;
 440 }
 441
 442 /**********************************************************************
 443  *      GetGuiResources (USER32.@)
 444  */
 445 DWORD WINAPI GetGuiResources( HANDLE hProcess, DWORD uiFlags )
 446 {
 447     static BOOL warn = TRUE;
 448
 449     if (warn) {
 450         FIXME("(%p,%x): stub\n",hProcess,uiFlags);
 451        warn = FALSE;
 452     }
 453
 454     SetLastError( ERROR_CALL_NOT_IMPLEMENTED );
 455     return 0;
 456 }