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 "user.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     BYTE   fVirt;
  41     BYTE   pad0;
  42     WORD   key;
  43     WORD   cmd;
  44     WORD   pad1;
  45 } PE_ACCEL, *LPPE_ACCEL;
  46
  47 /**********************************************************************
  48  *                      LoadAccelerators        [USER.177]
  49  */
  50 HACCEL16 WINAPI LoadAccelerators16(HINSTANCE16 instance, LPCSTR lpTableName)
  51 {
  52     HRSRC16     hRsrc;
  53
  54     TRACE_(accel)("%04x %s\n", instance, debugstr_a(lpTableName) );
  55
  56     if (!(hRsrc = FindResource16( instance, lpTableName, (LPSTR)RT_ACCELERATOR ))) {
  57       WARN_(accel)("couldn't find accelerator table resource\n");
  58       return 0;
  59     }
  60
  61     TRACE_(accel)("returning HACCEL 0x%x\n", hRsrc);
  62     return LoadResource16(instance,hRsrc);
  63 }
  64
  65 /**********************************************************************
  66  *                      LoadAcceleratorsW       (USER32.@)
  67  * The image layout seems to look like this (not 100% sure):
  68  * 00:  BYTE    type            type of accelerator
  69  * 01:  BYTE    pad             (to WORD boundary)
  70  * 02:  WORD    event
  71  * 04:  WORD    IDval
  72  * 06:  WORD    pad             (to DWORD boundary)
  73  */
  74 HACCEL WINAPI LoadAcceleratorsW(HINSTANCE instance,LPCWSTR lpTableName)
  75 {
  76     HRSRC hRsrc;
  77     HACCEL hMem;
  78     HACCEL16 hRetval=0;
  79     DWORD size;
  80
  81     if (HIWORD(lpTableName))
  82         TRACE_(accel)("%p '%s'\n",
  83                       (LPVOID)instance, (char *)( lpTableName ) );
  84     else
  85         TRACE_(accel)("%p 0x%04x\n",
  86                        (LPVOID)instance, LOWORD(lpTableName) );
  87
  88     if (!(hRsrc = FindResourceW( instance, lpTableName, (LPWSTR)RT_ACCELERATOR )))
  89     {
  90       WARN_(accel)("couldn't find accelerator table resource\n");
  91     } else {
  92       hMem = LoadResource( instance, hRsrc );
  93       size = SizeofResource( instance, hRsrc );
  94       if(size>=sizeof(PE_ACCEL))
  95       {
  96         LPPE_ACCEL accel_table = (LPPE_ACCEL) hMem;
  97         LPACCEL16 accel16;
  98         int i,nrofaccells = size/sizeof(PE_ACCEL);
  99
 100         hRetval = GlobalAlloc16(0,sizeof(ACCEL16)*nrofaccells);
 101         accel16 = (LPACCEL16)GlobalLock16(hRetval);
 102         for (i=0;i<nrofaccells;i++) {
 103           accel16[i].fVirt = accel_table[i].fVirt & 0x7f;
 104           accel16[i].key = accel_table[i].key;
 105           if( !(accel16[i].fVirt & FVIRTKEY) )
 106             accel16[i].key &= 0x00ff;
 107           accel16[i].cmd = accel_table[i].cmd;
 108         }
 109         accel16[i-1].fVirt |= 0x80;
 110       }
 111     }
 112     TRACE_(accel)("returning HACCEL %p\n", hRsrc);
 113     return HACCEL_32(hRetval);
 114 }
 115
 116 /***********************************************************************
 117  *              LoadAcceleratorsA   (USER32.@)
 118  */
 119 HACCEL WINAPI LoadAcceleratorsA(HINSTANCE instance,LPCSTR lpTableName)
 120 {
 121     INT len;
 122     LPWSTR uni;
 123     HACCEL result = 0;
 124
 125     if (!HIWORD(lpTableName)) return LoadAcceleratorsW( instance, (LPCWSTR)lpTableName );
 126
 127     len = MultiByteToWideChar( CP_ACP, 0, lpTableName, -1, NULL, 0 );
 128     if ((uni = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) )))
 129     {
 130         MultiByteToWideChar( CP_ACP, 0, lpTableName, -1, uni, len );
 131         result = LoadAcceleratorsW(instance,uni);
 132         HeapFree( GetProcessHeap(), 0, uni);
 133     }
 134     return result;
 135 }
 136
 137 /**********************************************************************
 138  *             CopyAcceleratorTableA   (USER32.@)
 139  */
 140 INT WINAPI CopyAcceleratorTableA(HACCEL src, LPACCEL dst, INT entries)
 141 {
 142   return CopyAcceleratorTableW(src, dst, entries);
 143 }
 144
 145 /**********************************************************************
 146  *             CopyAcceleratorTableW   (USER32.@)
 147  *
 148  * By mortene@pvv.org 980321
 149  */
 150 INT WINAPI CopyAcceleratorTableW(HACCEL src, LPACCEL dst,
 151                                      INT entries)
 152 {
 153   int i,xsize;
 154   LPACCEL16 accel = (LPACCEL16)GlobalLock16(HACCEL_16(src));
 155   BOOL done = FALSE;
 156
 157   /* Do parameter checking to avoid the explosions and the screaming
 158      as far as possible. */
 159   if((dst && (entries < 1)) || (src == NULL) || !accel) {
 160     WARN_(accel)("Application sent invalid parameters (%p %p %d).\n",
 161          (LPVOID)src, (LPVOID)dst, entries);
 162     return 0;
 163   }
 164   xsize = GlobalSize16(HACCEL_16(src))/sizeof(ACCEL16);
 165   if (xsize<entries) entries=xsize;
 166
 167   i=0;
 168   while(!done) {
 169     /* Spit out some debugging information. */
 170     TRACE_(accel)("accel %d: type 0x%02x, event '%c', IDval 0x%04x.\n",
 171           i, accel[i].fVirt, accel[i].key, accel[i].cmd);
 172
 173     /* Copy data to the destination structure array (if dst == NULL,
 174        we're just supposed to count the number of entries). */
 175     if(dst) {
 176       dst[i].fVirt = accel[i].fVirt&0x7f;
 177       dst[i].key = accel[i].key;
 178       dst[i].cmd = accel[i].cmd;
 179
 180       /* Check if we've reached the end of the application supplied
 181          accelerator table. */
 182       if(i+1 == entries)
 183         done = TRUE;
 184     }
 185
 186     /* The highest order bit seems to mark the end of the accelerator
 187        resource table, but not always. Use GlobalSize() check too. */
 188     if((accel[i].fVirt & 0x80) != 0) done = TRUE;
 189
 190     i++;
 191   }
 192
 193   return i;
 194 }
 195
 196 /*********************************************************************
 197  *                    CreateAcceleratorTableA   (USER32.@)
 198  *
 199  * By mortene@pvv.org 980321
 200  */
 201 HACCEL WINAPI CreateAcceleratorTableA(LPACCEL lpaccel, INT cEntries)
 202 {
 203   HACCEL        hAccel;
 204   LPACCEL16     accel;
 205   int           i;
 206
 207   /* Do parameter checking just in case someone's trying to be
 208      funny. */
 209   if(cEntries < 1) {
 210     WARN_(accel)("Application sent invalid parameters (%p %d).\n",
 211          lpaccel, cEntries);
 212     SetLastError(ERROR_INVALID_PARAMETER);
 213     return NULL;
 214   }
 215
 216   /* Allocate memory and copy the table. */
 217   hAccel = HACCEL_32(GlobalAlloc16(0,cEntries*sizeof(ACCEL16)));
 218
 219   TRACE_(accel)("handle %p\n", hAccel);
 220   if(!hAccel) {
 221     ERR_(accel)("Out of memory.\n");
 222     SetLastError(ERROR_NOT_ENOUGH_MEMORY);
 223     return NULL;
 224   }
 225   accel = GlobalLock16(HACCEL_16(hAccel));
 226   for (i=0;i<cEntries;i++) {
 227     accel[i].fVirt = lpaccel[i].fVirt&0x7f;
 228     accel[i].key = lpaccel[i].key;
 229     if( !(accel[i].fVirt & FVIRTKEY) )
 230       accel[i].key &= 0x00ff;
 231     accel[i].cmd = lpaccel[i].cmd;
 232   }
 233   /* Set the end-of-table terminator. */
 234   accel[cEntries-1].fVirt |= 0x80;
 235
 236   TRACE_(accel)("Allocated accelerator handle %p with %d entries\n", hAccel,cEntries);
 237   return hAccel;
 238 }
 239
 240 /*********************************************************************
 241  *                    CreateAcceleratorTableW   (USER32.@)
 242  *
 243  *
 244  */
 245 HACCEL WINAPI CreateAcceleratorTableW(LPACCEL lpaccel, INT cEntries)
 246 {
 247   HACCEL        hAccel;
 248   LPACCEL16     accel;
 249   int           i;
 250   char          ckey;
 251
 252   /* Do parameter checking just in case someone's trying to be
 253      funny. */
 254   if(cEntries < 1) {
 255     WARN_(accel)("Application sent invalid parameters (%p %d).\n",
 256          lpaccel, cEntries);
 257     SetLastError(ERROR_INVALID_PARAMETER);
 258     return NULL;
 259   }
 260
 261   /* Allocate memory and copy the table. */
 262   hAccel = HACCEL_32(GlobalAlloc16(0,cEntries*sizeof(ACCEL16)));
 263
 264   TRACE_(accel)("handle %p\n", hAccel);
 265   if(!hAccel) {
 266     ERR_(accel)("Out of memory.\n");
 267     SetLastError(ERROR_NOT_ENOUGH_MEMORY);
 268     return NULL;
 269   }
 270   accel = GlobalLock16(HACCEL_16(hAccel));
 271
 272
 273   for (i=0;i<cEntries;i++) {
 274        accel[i].fVirt = lpaccel[i].fVirt&0x7f;
 275        if( !(accel[i].fVirt & FVIRTKEY) ) {
 276           ckey = (char) lpaccel[i].key;
 277          if(!MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, &ckey, 1, &accel[i].key, 1))
 278             WARN_(accel)("Error converting ASCII accelerator table to Unicode\n");
 279        }
 280        else
 281          accel[i].key = lpaccel[i].key;
 282        accel[i].cmd = lpaccel[i].cmd;
 283   }
 284
 285   /* Set the end-of-table terminator. */
 286   accel[cEntries-1].fVirt |= 0x80;
 287
 288   TRACE_(accel)("Allocated accelerator handle %p\n", hAccel);
 289   return hAccel;
 290 }
 291
 292 /******************************************************************************
 293  * DestroyAcceleratorTable [USER32.@]
 294  * Destroys an accelerator table
 295  *
 296  * NOTES
 297  *    By mortene@pvv.org 980321
 298  *
 299  * PARAMS
 300  *    handle [I] Handle to accelerator table
 301  *
 302  * RETURNS STD
 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=%08x len=%d\n",
 324           instance, resource_id, (int) buffer, buflen);
 325
 326     hrsrc = FindResource16( instance, (LPCSTR)((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     if (HIWORD(resource_id)==0xFFFF) /* netscape 3 passes this */
 369         resource_id = (UINT)(-((INT)resource_id));
 370     TRACE("instance = %p, id = %04x, buffer = %08x, length = %d\n",
 371           instance, (int)resource_id, (int) buffer, buflen);
 372
 373     /* Use bits 4 - 19 (incremented by 1) as resourceid, mask out
 374      * 20 - 31. */
 375     hrsrc = FindResourceW( instance, (LPCWSTR)(((resource_id>>4)&0xffff)+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 (buffer == NULL) return *p;
 389     i = min(buflen - 1, *p);
 390     if (i > 0) {
 391         memcpy(buffer, p + 1, i * sizeof (WCHAR));
 392         buffer[i] = (WCHAR) 0;
 393     } else {
 394         if (buflen > 1) {
 395             buffer[0] = (WCHAR) 0;
 396             return 0;
 397         }
 398 #if 0
 399         WARN("Don't know why caller gave buflen=%d *p=%d trying to obtain string '%s'\n", buflen, *p, p + 1);
 400 #endif
 401     }
 402
 403     TRACE("%s loaded !\n", debugstr_w(buffer));
 404     return i;
 405 }
 406
 407 /**********************************************************************
 408  *      LoadStringA     (USER32.@)
 409  */
 410 INT WINAPI LoadStringA( HINSTANCE instance, UINT resource_id,
 411                             LPSTR buffer, INT buflen )
 412 {
 413     INT    retval;
 414     LPWSTR wbuf;
 415
 416     TRACE("instance = %p, id = %04x, buffer = %08x, length = %d\n",
 417           instance, (int)resource_id, (int) buffer, buflen);
 418
 419     if(buffer == NULL) /* asked size of string */
 420         return LoadStringW(instance, resource_id, NULL, 0);
 421
 422     wbuf = HeapAlloc(GetProcessHeap(), 0, buflen * sizeof(WCHAR));
 423     if(!wbuf)
 424         return 0;
 425
 426     retval = LoadStringW(instance, resource_id, wbuf, buflen);
 427     if(retval != 0)
 428     {
 429         retval = WideCharToMultiByte(CP_ACP, 0, wbuf, retval, buffer, buflen - 1, NULL, NULL);
 430         buffer[retval] = 0;
 431         TRACE("%s loaded !\n", debugstr_a(buffer));
 432     }
 433     else buffer[0] = 0;    /* no check of buflen here */
 434     HeapFree( GetProcessHeap(), 0, wbuf );
 435
 436     return retval;
 437 }
 438
 439 /**********************************************************************
 440  *      GetGuiResources (USER32.@)
 441  */
 442 DWORD WINAPI GetGuiResources( HANDLE hProcess, DWORD uiFlags )
 443 {
 444     FIXME("(%p,%lx): stub\n",hProcess,uiFlags);
 445     SetLastError( ERROR_CALL_NOT_IMPLEMENTED );
 446     return 0;
 447 }