dlls/user32/winstation.c

   1 /*
   2  * Window stations and desktops
   3  *
   4  * Copyright 2002 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 "ntstatus.h"
  22 #define WIN32_NO_STATUS
  23
  24 #include <stdarg.h>
  25 #include "windef.h"
  26 #include "winbase.h"
  27 #include "winnls.h"
  28 #include "winerror.h"
  29 #include "wingdi.h"
  30 #include "winuser.h"
  31 #include "wine/server.h"
  32 #include "wine/unicode.h"
  33 #include "wine/debug.h"
  34 #include "user_private.h"
  35
  36 WINE_DEFAULT_DEBUG_CHANNEL(winstation);
  37
  38
  39 /* callback for enumeration functions */
  40 struct enum_proc_lparam
  41 {
  42     NAMEENUMPROCA func;
  43     LPARAM        lparam;
  44 };
  45
  46 static BOOL CALLBACK enum_names_WtoA( LPWSTR name, LPARAM lparam )
  47 {
  48     struct enum_proc_lparam *data = (struct enum_proc_lparam *)lparam;
  49     char buffer[MAX_PATH];
  50
  51     if (!WideCharToMultiByte( CP_ACP, 0, name, -1, buffer, sizeof(buffer), NULL, NULL ))
  52         return FALSE;
  53     return data->func( buffer, data->lparam );
  54 }
  55
  56
  57 /***********************************************************************
  58  *              CreateWindowStationA  (USER32.@)
  59  */
  60 HWINSTA WINAPI CreateWindowStationA( LPCSTR name, DWORD reserved, ACCESS_MASK access,
  61                                      LPSECURITY_ATTRIBUTES sa )
  62 {
  63     WCHAR buffer[MAX_PATH];
  64
  65     if (!name) return CreateWindowStationW( NULL, reserved, access, sa );
  66
  67     if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
  68     {
  69         SetLastError( ERROR_FILENAME_EXCED_RANGE );
  70         return 0;
  71     }
  72     return CreateWindowStationW( buffer, reserved, access, sa );
  73 }
  74
  75
  76 /***********************************************************************
  77  *              CreateWindowStationW  (USER32.@)
  78  */
  79 HWINSTA WINAPI CreateWindowStationW( LPCWSTR name, DWORD reserved, ACCESS_MASK access,
  80                                      LPSECURITY_ATTRIBUTES sa )
  81 {
  82     HANDLE ret;
  83     DWORD len = name ? strlenW(name) : 0;
  84
  85     if (len >= MAX_PATH)
  86     {
  87         SetLastError( ERROR_FILENAME_EXCED_RANGE );
  88         return 0;
  89     }
  90     SERVER_START_REQ( create_winstation )
  91     {
  92         req->flags      = 0;
  93         req->access     = access;
  94         req->attributes = OBJ_CASE_INSENSITIVE | OBJ_OPENIF |
  95                           ((sa && sa->bInheritHandle) ? OBJ_INHERIT : 0);
  96         wine_server_add_data( req, name, len * sizeof(WCHAR) );
  97         /* it doesn't seem to set last error */
  98         wine_server_call( req );
  99         ret = wine_server_ptr_handle( reply->handle );
 100     }
 101     SERVER_END_REQ;
 102     return ret;
 103 }
 104
 105
 106 /******************************************************************************
 107  *              OpenWindowStationA  (USER32.@)
 108  */
 109 HWINSTA WINAPI OpenWindowStationA( LPCSTR name, BOOL inherit, ACCESS_MASK access )
 110 {
 111     WCHAR buffer[MAX_PATH];
 112
 113     if (!name) return OpenWindowStationW( NULL, inherit, access );
 114
 115     if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
 116     {
 117         SetLastError( ERROR_FILENAME_EXCED_RANGE );
 118         return 0;
 119     }
 120     return OpenWindowStationW( buffer, inherit, access );
 121 }
 122
 123
 124 /******************************************************************************
 125  *              OpenWindowStationW  (USER32.@)
 126  */
 127 HWINSTA WINAPI OpenWindowStationW( LPCWSTR name, BOOL inherit, ACCESS_MASK access )
 128 {
 129     HANDLE ret = 0;
 130     DWORD len = name ? strlenW(name) : 0;
 131     if (len >= MAX_PATH)
 132     {
 133         SetLastError( ERROR_FILENAME_EXCED_RANGE );
 134         return 0;
 135     }
 136     SERVER_START_REQ( open_winstation )
 137     {
 138         req->access     = access;
 139         req->attributes = OBJ_CASE_INSENSITIVE | (inherit ? OBJ_INHERIT : 0);
 140         wine_server_add_data( req, name, len * sizeof(WCHAR) );
 141         if (!wine_server_call_err( req )) ret = wine_server_ptr_handle( reply->handle );
 142     }
 143     SERVER_END_REQ;
 144     return ret;
 145 }
 146
 147
 148 /***********************************************************************
 149  *              CloseWindowStation  (USER32.@)
 150  */
 151 BOOL WINAPI CloseWindowStation( HWINSTA handle )
 152 {
 153     BOOL ret;
 154     SERVER_START_REQ( close_winstation )
 155     {
 156         req->handle = wine_server_obj_handle( handle );
 157         ret = !wine_server_call_err( req );
 158     }
 159     SERVER_END_REQ;
 160     return ret;
 161 }
 162
 163
 164 /******************************************************************************
 165  *              GetProcessWindowStation  (USER32.@)
 166  */
 167 HWINSTA WINAPI GetProcessWindowStation(void)
 168 {
 169     HWINSTA ret = 0;
 170
 171     SERVER_START_REQ( get_process_winstation )
 172     {
 173         if (!wine_server_call_err( req ))
 174             ret = wine_server_ptr_handle( reply->handle );
 175     }
 176     SERVER_END_REQ;
 177     return ret;
 178 }
 179
 180
 181 /***********************************************************************
 182  *              SetProcessWindowStation  (USER32.@)
 183  */
 184 BOOL WINAPI SetProcessWindowStation( HWINSTA handle )
 185 {
 186     BOOL ret;
 187
 188     SERVER_START_REQ( set_process_winstation )
 189     {
 190         req->handle = wine_server_obj_handle( handle );
 191         ret = !wine_server_call_err( req );
 192     }
 193     SERVER_END_REQ;
 194     return ret;
 195 }
 196
 197
 198 /******************************************************************************
 199  *              EnumWindowStationsA  (USER32.@)
 200  */
 201 BOOL WINAPI EnumWindowStationsA( WINSTAENUMPROCA func, LPARAM lparam )
 202 {
 203     struct enum_proc_lparam data;
 204     data.func   = func;
 205     data.lparam = lparam;
 206     return EnumWindowStationsW( enum_names_WtoA, (LPARAM)&data );
 207 }
 208
 209
 210 /******************************************************************************
 211  *              EnumWindowStationsW  (USER32.@)
 212  */
 213 BOOL WINAPI EnumWindowStationsW( WINSTAENUMPROCW func, LPARAM lparam )
 214 {
 215     unsigned int index = 0;
 216     WCHAR name[MAX_PATH];
 217     BOOL ret = TRUE;
 218     NTSTATUS status;
 219
 220     while (ret)
 221     {
 222         SERVER_START_REQ( enum_winstation )
 223         {
 224             req->index = index;
 225             wine_server_set_reply( req, name, sizeof(name) - sizeof(WCHAR) );
 226             status = wine_server_call( req );
 227             name[wine_server_reply_size(reply)/sizeof(WCHAR)] = 0;
 228             index = reply->next;
 229         }
 230         SERVER_END_REQ;
 231         if (status == STATUS_NO_MORE_ENTRIES)
 232             break;
 233         if (status)
 234         {
 235             SetLastError( RtlNtStatusToDosError( status ) );
 236             return FALSE;
 237         }
 238         ret = func( name, lparam );
 239     }
 240     return ret;
 241 }
 242
 243
 244 /***********************************************************************
 245  *              CreateDesktopA   (USER32.@)
 246  */
 247 HDESK WINAPI CreateDesktopA( LPCSTR name, LPCSTR device, LPDEVMODEA devmode,
 248                              DWORD flags, ACCESS_MASK access, LPSECURITY_ATTRIBUTES sa )
 249 {
 250     WCHAR buffer[MAX_PATH];
 251
 252     if (device || devmode)
 253     {
 254         SetLastError( ERROR_INVALID_PARAMETER );
 255         return 0;
 256     }
 257     if (!name) return CreateDesktopW( NULL, NULL, NULL, flags, access, sa );
 258
 259     if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
 260     {
 261         SetLastError( ERROR_FILENAME_EXCED_RANGE );
 262         return 0;
 263     }
 264     return CreateDesktopW( buffer, NULL, NULL, flags, access, sa );
 265 }
 266
 267
 268 /***********************************************************************
 269  *              CreateDesktopW   (USER32.@)
 270  */
 271 HDESK WINAPI CreateDesktopW( LPCWSTR name, LPCWSTR device, LPDEVMODEW devmode,
 272                              DWORD flags, ACCESS_MASK access, LPSECURITY_ATTRIBUTES sa )
 273 {
 274     HANDLE ret;
 275     DWORD len = name ? strlenW(name) : 0;
 276
 277     if (device || devmode)
 278     {
 279         SetLastError( ERROR_INVALID_PARAMETER );
 280         return 0;
 281     }
 282     if (len >= MAX_PATH)
 283     {
 284         SetLastError( ERROR_FILENAME_EXCED_RANGE );
 285         return 0;
 286     }
 287     SERVER_START_REQ( create_desktop )
 288     {
 289         req->flags      = flags;
 290         req->access     = access;
 291         req->attributes = OBJ_CASE_INSENSITIVE | OBJ_OPENIF |
 292                           ((sa && sa->bInheritHandle) ? OBJ_INHERIT : 0);
 293         wine_server_add_data( req, name, len * sizeof(WCHAR) );
 294         /* it doesn't seem to set last error */
 295         wine_server_call( req );
 296         ret = wine_server_ptr_handle( reply->handle );
 297     }
 298     SERVER_END_REQ;
 299     return ret;
 300 }
 301
 302
 303 /******************************************************************************
 304  *              OpenDesktopA   (USER32.@)
 305  */
 306 HDESK WINAPI OpenDesktopA( LPCSTR name, DWORD flags, BOOL inherit, ACCESS_MASK access )
 307 {
 308     WCHAR buffer[MAX_PATH];
 309
 310     if (!name) return OpenDesktopW( NULL, flags, inherit, access );
 311
 312     if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
 313     {
 314         SetLastError( ERROR_FILENAME_EXCED_RANGE );
 315         return 0;
 316     }
 317     return OpenDesktopW( buffer, flags, inherit, access );
 318 }
 319
 320
 321 HDESK open_winstation_desktop( HWINSTA hwinsta, LPCWSTR name, DWORD flags, BOOL inherit, ACCESS_MASK access )
 322 {
 323     HANDLE ret = 0;
 324     DWORD len = name ? strlenW(name) : 0;
 325     if (len >= MAX_PATH)
 326     {
 327         SetLastError( ERROR_FILENAME_EXCED_RANGE );
 328         return 0;
 329     }
 330     SERVER_START_REQ( open_desktop )
 331     {
 332         req->winsta     = wine_server_obj_handle( hwinsta );
 333         req->flags      = flags;
 334         req->access     = access;
 335         req->attributes = OBJ_CASE_INSENSITIVE | (inherit ? OBJ_INHERIT : 0);
 336         wine_server_add_data( req, name, len * sizeof(WCHAR) );
 337         if (!wine_server_call( req )) ret = wine_server_ptr_handle( reply->handle );
 338     }
 339     SERVER_END_REQ;
 340     return ret;
 341 }
 342
 343
 344 /******************************************************************************
 345  *              OpenDesktopW   (USER32.@)
 346  */
 347 HDESK WINAPI OpenDesktopW( LPCWSTR name, DWORD flags, BOOL inherit, ACCESS_MASK access )
 348 {
 349     return open_winstation_desktop( NULL, name, flags, inherit, access );
 350 }
 351
 352
 353 /***********************************************************************
 354  *              CloseDesktop  (USER32.@)
 355  */
 356 BOOL WINAPI CloseDesktop( HDESK handle )
 357 {
 358     BOOL ret;
 359     SERVER_START_REQ( close_desktop )
 360     {
 361         req->handle = wine_server_obj_handle( handle );
 362         ret = !wine_server_call_err( req );
 363     }
 364     SERVER_END_REQ;
 365     return ret;
 366 }
 367
 368
 369 /******************************************************************************
 370  *              GetThreadDesktop   (USER32.@)
 371  */
 372 HDESK WINAPI GetThreadDesktop( DWORD thread )
 373 {
 374     HDESK ret = 0;
 375
 376     SERVER_START_REQ( get_thread_desktop )
 377     {
 378         req->tid = thread;
 379         if (!wine_server_call_err( req )) ret = wine_server_ptr_handle( reply->handle );
 380     }
 381     SERVER_END_REQ;
 382     return ret;
 383 }
 384
 385
 386 /******************************************************************************
 387  *              SetThreadDesktop   (USER32.@)
 388  */
 389 BOOL WINAPI SetThreadDesktop( HDESK handle )
 390 {
 391     BOOL ret;
 392
 393     SERVER_START_REQ( set_thread_desktop )
 394     {
 395         req->handle = wine_server_obj_handle( handle );
 396         ret = !wine_server_call_err( req );
 397     }
 398     SERVER_END_REQ;
 399     if (ret)  /* reset the desktop windows */
 400     {
 401         struct user_thread_info *thread_info = get_user_thread_info();
 402         thread_info->top_window = 0;
 403         thread_info->msg_window = 0;
 404         thread_info->key_state_time = 0;
 405     }
 406     return ret;
 407 }
 408
 409
 410 /******************************************************************************
 411  *              EnumDesktopsA   (USER32.@)
 412  */
 413 BOOL WINAPI EnumDesktopsA( HWINSTA winsta, DESKTOPENUMPROCA func, LPARAM lparam )
 414 {
 415     struct enum_proc_lparam data;
 416     data.func   = func;
 417     data.lparam = lparam;
 418     return EnumDesktopsW( winsta, enum_names_WtoA, (LPARAM)&data );
 419 }
 420
 421
 422 /******************************************************************************
 423  *              EnumDesktopsW   (USER32.@)
 424  */
 425 BOOL WINAPI EnumDesktopsW( HWINSTA winsta, DESKTOPENUMPROCW func, LPARAM lparam )
 426 {
 427     unsigned int index = 0;
 428     WCHAR name[MAX_PATH];
 429     BOOL ret = TRUE;
 430     NTSTATUS status;
 431
 432     if (!winsta)
 433         winsta = GetProcessWindowStation();
 434
 435     while (ret)
 436     {
 437         SERVER_START_REQ( enum_desktop )
 438         {
 439             req->winstation = wine_server_obj_handle( winsta );
 440             req->index      = index;
 441             wine_server_set_reply( req, name, sizeof(name) - sizeof(WCHAR) );
 442             status = wine_server_call( req );
 443             name[wine_server_reply_size(reply)/sizeof(WCHAR)] = 0;
 444             index = reply->next;
 445         }
 446         SERVER_END_REQ;
 447         if (status == STATUS_NO_MORE_ENTRIES)
 448             break;
 449         if (status)
 450         {
 451             SetLastError( RtlNtStatusToDosError( status ) );
 452             return FALSE;
 453         }
 454         ret = func(name, lparam);
 455     }
 456     return ret;
 457 }
 458
 459
 460 /******************************************************************************
 461  *              OpenInputDesktop   (USER32.@)
 462  */
 463 HDESK WINAPI OpenInputDesktop( DWORD flags, BOOL inherit, ACCESS_MASK access )
 464 {
 465     FIXME( "(%x,%i,%x): stub\n", flags, inherit, access );
 466     SetLastError( ERROR_CALL_NOT_IMPLEMENTED );
 467     return 0;
 468 }
 469
 470
 471 /***********************************************************************
 472  *              GetUserObjectInformationA   (USER32.@)
 473  */
 474 BOOL WINAPI GetUserObjectInformationA( HANDLE handle, INT index, LPVOID info, DWORD len, LPDWORD needed )
 475 {
 476     /* check for information types returning strings */
 477     if (index == UOI_TYPE || index == UOI_NAME)
 478     {
 479         WCHAR buffer[MAX_PATH];
 480         DWORD lenA, lenW;
 481
 482         if (!GetUserObjectInformationW( handle, index, buffer, sizeof(buffer), &lenW )) return FALSE;
 483         lenA = WideCharToMultiByte( CP_ACP, 0, buffer, -1, NULL, 0, NULL, NULL );
 484         if (needed) *needed = lenA;
 485         if (lenA > len)
 486         {
 487             /* If the buffer length supplied by the caller is insufficient, Windows returns a
 488                'needed' length based upon the Unicode byte length, so we should do similarly. */
 489             if (needed) *needed = lenW;
 490
 491             SetLastError( ERROR_INSUFFICIENT_BUFFER );
 492             return FALSE;
 493         }
 494         if (info) WideCharToMultiByte( CP_ACP, 0, buffer, -1, info, len, NULL, NULL );
 495         return TRUE;
 496     }
 497     return GetUserObjectInformationW( handle, index, info, len, needed );
 498 }
 499
 500
 501 /***********************************************************************
 502  *              GetUserObjectInformationW   (USER32.@)
 503  */
 504 BOOL WINAPI GetUserObjectInformationW( HANDLE handle, INT index, LPVOID info, DWORD len, LPDWORD needed )
 505 {
 506     static const WCHAR desktopW[] = { 'D','e','s','k','t','o','p',0 };
 507     static const WCHAR winstationW[] = { 'W','i','n','d','o','w','S','t','a','t','i','o','n',0 };
 508     BOOL ret;
 509
 510     switch(index)
 511     {
 512     case UOI_FLAGS:
 513         {
 514             USEROBJECTFLAGS *obj_flags = info;
 515             if (needed) *needed = sizeof(*obj_flags);
 516             if (len < sizeof(*obj_flags))
 517             {
 518                 SetLastError( ERROR_BUFFER_OVERFLOW );
 519                 return FALSE;
 520             }
 521             SERVER_START_REQ( set_user_object_info )
 522             {
 523                 req->handle    = wine_server_obj_handle( handle );
 524                 req->flags     = 0;
 525                 ret = !wine_server_call_err( req );
 526                 if (ret)
 527                 {
 528                     /* FIXME: inherit flag */
 529                     obj_flags->dwFlags = reply->old_obj_flags;
 530                 }
 531             }
 532             SERVER_END_REQ;
 533         }
 534         return ret;
 535
 536     case UOI_TYPE:
 537         SERVER_START_REQ( set_user_object_info )
 538         {
 539             req->handle = wine_server_obj_handle( handle );
 540             req->flags  = 0;
 541             ret = !wine_server_call_err( req );
 542             if (ret)
 543             {
 544                 size_t size = reply->is_desktop ? sizeof(desktopW) : sizeof(winstationW);
 545                 if (needed) *needed = size;
 546                 if (len < size)
 547                 {
 548                     SetLastError( ERROR_INSUFFICIENT_BUFFER );
 549                     ret = FALSE;
 550                 }
 551                 else memcpy( info, reply->is_desktop ? desktopW : winstationW, size );
 552             }
 553         }
 554         SERVER_END_REQ;
 555         return ret;
 556
 557     case UOI_NAME:
 558         {
 559             WCHAR buffer[MAX_PATH];
 560             SERVER_START_REQ( set_user_object_info )
 561             {
 562                 req->handle = wine_server_obj_handle( handle );
 563                 req->flags  = 0;
 564                 wine_server_set_reply( req, buffer, sizeof(buffer) - sizeof(WCHAR) );
 565                 ret = !wine_server_call_err( req );
 566                 if (ret)
 567                 {
 568                     size_t size = wine_server_reply_size( reply );
 569                     buffer[size / sizeof(WCHAR)] = 0;
 570                     size += sizeof(WCHAR);
 571                     if (needed) *needed = size;
 572                     if (len < size)
 573                     {
 574                         SetLastError( ERROR_INSUFFICIENT_BUFFER );
 575                         ret = FALSE;
 576                     }
 577                     else memcpy( info, buffer, size );
 578                 }
 579             }
 580             SERVER_END_REQ;
 581         }
 582         return ret;
 583
 584     case UOI_USER_SID:
 585         FIXME( "not supported index %d\n", index );
 586         /* fall through */
 587     default:
 588         SetLastError( ERROR_INVALID_PARAMETER );
 589         return FALSE;
 590     }
 591 }
 592
 593
 594 /******************************************************************************
 595  *              SetUserObjectInformationA   (USER32.@)
 596  */
 597 BOOL WINAPI SetUserObjectInformationA( HANDLE handle, INT index, LPVOID info, DWORD len )
 598 {
 599     return SetUserObjectInformationW( handle, index, info, len );
 600 }
 601
 602
 603 /******************************************************************************
 604  *              SetUserObjectInformationW   (USER32.@)
 605  */
 606 BOOL WINAPI SetUserObjectInformationW( HANDLE handle, INT index, LPVOID info, DWORD len )
 607 {
 608     BOOL ret;
 609     const USEROBJECTFLAGS *obj_flags = info;
 610
 611     if (index != UOI_FLAGS || !info || len < sizeof(*obj_flags))
 612     {
 613         SetLastError( ERROR_INVALID_PARAMETER );
 614         return FALSE;
 615     }
 616     /* FIXME: inherit flag */
 617     SERVER_START_REQ( set_user_object_info )
 618     {
 619         req->handle    = wine_server_obj_handle( handle );
 620         req->flags     = SET_USER_OBJECT_FLAGS;
 621         req->obj_flags = obj_flags->dwFlags;
 622         ret = !wine_server_call_err( req );
 623     }
 624     SERVER_END_REQ;
 625     return ret;
 626 }
 627
 628
 629 /***********************************************************************
 630  *              GetUserObjectSecurity   (USER32.@)
 631  */
 632 BOOL WINAPI GetUserObjectSecurity( HANDLE handle, PSECURITY_INFORMATION info,
 633                                    PSECURITY_DESCRIPTOR sid, DWORD len, LPDWORD needed )
 634 {
 635     FIXME( "(%p %p %p len=%d %p),stub!\n", handle, info, sid, len, needed );
 636     if (needed)
 637         *needed = sizeof(SECURITY_DESCRIPTOR);
 638     if (len < sizeof(SECURITY_DESCRIPTOR))
 639     {
 640         SetLastError( ERROR_INSUFFICIENT_BUFFER );
 641         return FALSE;
 642     }
 643     return InitializeSecurityDescriptor(sid, SECURITY_DESCRIPTOR_REVISION);
 644 }
 645
 646 /***********************************************************************
 647  *              SetUserObjectSecurity   (USER32.@)
 648  */
 649 BOOL WINAPI SetUserObjectSecurity( HANDLE handle, PSECURITY_INFORMATION info,
 650                                    PSECURITY_DESCRIPTOR sid )
 651 {
 652     FIXME( "(%p,%p,%p),stub!\n", handle, info, sid );
 653     return TRUE;
 654 }