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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  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 STD
 300  */
 301 BOOL WINAPI DestroyAcceleratorTable( HACCEL handle )
 302 {
 303     if( !handle )
 304         return FALSE;
 305     return !GlobalFree16(HACCEL_16(handle));
 306 }
 307
 308 /**********************************************************************
 309  *     LoadString   (USER.176)
 310  */
 311 INT16 WINAPI LoadString16( HINSTANCE16 instance, UINT16 resource_id,
 312                            LPSTR buffer, INT16 buflen )
 313 {
 314     HGLOBAL16 hmem;
 315     HRSRC16 hrsrc;
 316     unsigned char *p;
 317     int string_num;
 318     int i;
 319
 320     TRACE("inst=%04x id=%04x buff=%08x len=%d\n",
 321           instance, resource_id, (int) buffer, buflen);
 322
 323     hrsrc = FindResource16( instance, (LPCSTR)((resource_id>>4)+1), (LPSTR)RT_STRING );
 324     if (!hrsrc) return 0;
 325     hmem = LoadResource16( instance, hrsrc );
 326     if (!hmem) return 0;
 327
 328     p = LockResource16(hmem);
 329     string_num = resource_id & 0x000f;
 330     for (i = 0; i < string_num; i++)
 331         p += *p + 1;
 332
 333     TRACE("strlen = %d\n", (int)*p );
 334
 335     if (buffer == NULL) return *p;
 336     i = min(buflen - 1, *p);
 337     if (i > 0) {
 338         memcpy(buffer, p + 1, i);
 339         buffer[i] = '\0';
 340     } else {
 341         if (buflen > 1) {
 342             buffer[0] = '\0';
 343             return 0;
 344         }
 345         WARN("Don't know why caller gave buflen=%d *p=%d trying to obtain string '%s'\n", buflen, *p, p + 1);
 346     }
 347     FreeResource16( hmem );
 348
 349     TRACE("'%s' loaded !\n", buffer);
 350     return i;
 351 }
 352
 353 /**********************************************************************
 354  *      LoadStringW             (USER32.@)
 355  */
 356 INT WINAPI LoadStringW( HINSTANCE instance, UINT resource_id,
 357                             LPWSTR buffer, INT buflen )
 358 {
 359     HGLOBAL hmem;
 360     HRSRC hrsrc;
 361     WCHAR *p;
 362     int string_num;
 363     int i;
 364
 365     if (HIWORD(resource_id)==0xFFFF) /* netscape 3 passes this */
 366         resource_id = (UINT)(-((INT)resource_id));
 367     TRACE("instance = %p, id = %04x, buffer = %08x, length = %d\n",
 368           instance, (int)resource_id, (int) buffer, buflen);
 369
 370     /* Use bits 4 - 19 (incremented by 1) as resourceid, mask out
 371      * 20 - 31. */
 372     hrsrc = FindResourceW( instance, (LPCWSTR)(((resource_id>>4)&0xffff)+1),
 373                            (LPWSTR)RT_STRING );
 374     if (!hrsrc) return 0;
 375     hmem = LoadResource( instance, hrsrc );
 376     if (!hmem) return 0;
 377
 378     p = LockResource(hmem);
 379     string_num = resource_id & 0x000f;
 380     for (i = 0; i < string_num; i++)
 381         p += *p + 1;
 382
 383     TRACE("strlen = %d\n", (int)*p );
 384
 385     if (buffer == NULL) return *p;
 386     i = min(buflen - 1, *p);
 387     if (i > 0) {
 388         memcpy(buffer, p + 1, i * sizeof (WCHAR));
 389         buffer[i] = (WCHAR) 0;
 390     } else {
 391         if (buflen > 1) {
 392             buffer[0] = (WCHAR) 0;
 393             return 0;
 394         }
 395 #if 0
 396         WARN("Don't know why caller gave buflen=%d *p=%d trying to obtain string '%s'\n", buflen, *p, p + 1);
 397 #endif
 398     }
 399
 400     TRACE("%s loaded !\n", debugstr_w(buffer));
 401     return i;
 402 }
 403
 404 /**********************************************************************
 405  *      LoadStringA     (USER32.@)
 406  */
 407 INT WINAPI LoadStringA( HINSTANCE instance, UINT resource_id,
 408                             LPSTR buffer, INT buflen )
 409 {
 410     INT    retval;
 411     LPWSTR wbuf;
 412
 413     TRACE("instance = %p, id = %04x, buffer = %08x, length = %d\n",
 414           instance, (int)resource_id, (int) buffer, buflen);
 415
 416     if(buffer == NULL) /* asked size of string */
 417         return LoadStringW(instance, resource_id, NULL, 0);
 418
 419     wbuf = HeapAlloc(GetProcessHeap(), 0, buflen * sizeof(WCHAR));
 420     if(!wbuf)
 421         return 0;
 422
 423     retval = LoadStringW(instance, resource_id, wbuf, buflen);
 424     if(retval != 0)
 425     {
 426         retval = WideCharToMultiByte(CP_ACP, 0, wbuf, retval, buffer, buflen - 1, NULL, NULL);
 427         buffer[retval] = 0;
 428         TRACE("%s loaded !\n", debugstr_a(buffer));
 429     }
 430     else buffer[0] = 0;    /* no check of buflen here */
 431     HeapFree( GetProcessHeap(), 0, wbuf );
 432
 433     return retval;
 434 }
 435
 436 /**********************************************************************
 437  *      GetGuiResources (USER32.@)
 438  */
 439 DWORD WINAPI GetGuiResources( HANDLE hProcess, DWORD uiFlags )
 440 {
 441     FIXME("(%p,%lx): stub\n",hProcess,uiFlags);
 442     SetLastError( ERROR_CALL_NOT_IMPLEMENTED );
 443     return 0;
 444 }