dlls/user32/tests/dce.c

   1 /*
   2  * Unit tests for DCE support
   3  *
   4  * Copyright 2005 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 <stdlib.h>
  22 #include <stdarg.h>
  23 #include <stdio.h>
  24
  25 #include "windef.h"
  26 #include "winbase.h"
  27 #include "wingdi.h"
  28 #include "winuser.h"
  29
  30 #include "wine/test.h"
  31
  32 #ifndef DCX_USESTYLE
  33 #define DCX_USESTYLE         0x00010000
  34 #endif
  35
  36 static HWND hwnd_cache, hwnd_owndc, hwnd_classdc, hwnd_classdc2;
  37
  38 /* test behavior of DC attributes with various GetDC/ReleaseDC combinations */
  39 static void test_dc_attributes(void)
  40 {
  41     HDC hdc, old_hdc;
  42     HDC hdcs[20];
  43     INT i, rop, def_rop, found_dc;
  44
  45     /* test cache DC */
  46
  47     hdc = GetDC( hwnd_cache );
  48     def_rop = GetROP2( hdc );
  49
  50     SetROP2( hdc, R2_WHITE );
  51     rop = GetROP2( hdc );
  52     ok( rop == R2_WHITE, "wrong ROP2 %d\n", rop );
  53
  54     ReleaseDC( hwnd_cache, hdc );
  55     hdc = GetDC( hwnd_cache );
  56     rop = GetROP2( hdc );
  57     ok( rop == def_rop, "wrong ROP2 %d after release\n", rop );
  58     SetROP2( hdc, R2_WHITE );
  59     ReleaseDC( hwnd_cache, hdc );
  60     old_hdc = hdc;
  61
  62     found_dc = 0;
  63     for (i = 0; i < 20; i++)
  64     {
  65         hdc = hdcs[i] = GetDCEx( hwnd_cache, 0, DCX_USESTYLE | DCX_NORESETATTRS );
  66         if (!hdc) break;
  67         rop = GetROP2( hdc );
  68         ok( rop == def_rop, "wrong ROP2 %d after release %p/%p\n", rop, old_hdc, hdc );
  69         if (hdc == old_hdc)
  70         {
  71             found_dc = 1;
  72             SetROP2( hdc, R2_WHITE );
  73         }
  74     }
  75     if (!found_dc)
  76     {
  77         trace( "hdc %p not found in cache using %p\n", old_hdc, hdcs[0] );
  78         old_hdc = hdcs[0];
  79         SetROP2( old_hdc, R2_WHITE );
  80     }
  81     while (i > 0) ReleaseDC( hwnd_cache, hdcs[--i] );
  82
  83     for (i = 0; i < 20; i++)
  84     {
  85         hdc = hdcs[i] = GetDCEx( hwnd_cache, 0, DCX_USESTYLE | DCX_NORESETATTRS );
  86         if (!hdc) break;
  87         rop = GetROP2( hdc );
  88         if (hdc == old_hdc)
  89             ok( rop == R2_WHITE || broken( rop == def_rop),  /* win9x doesn't support DCX_NORESETATTRS */
  90                 "wrong ROP2 %d after release %p/%p\n", rop, old_hdc, hdc );
  91         else
  92             ok( rop == def_rop, "wrong ROP2 %d after release %p/%p\n", rop, old_hdc, hdc );
  93     }
  94     while (i > 0) ReleaseDC( hwnd_cache, hdcs[--i] );
  95
  96     for (i = 0; i < 20; i++)
  97     {
  98         hdc = hdcs[i] = GetDCEx( hwnd_cache, 0, DCX_USESTYLE );
  99         if (!hdc) break;
 100         rop = GetROP2( hdc );
 101         if (hdc == old_hdc)
 102         {
 103             ok( rop == R2_WHITE || broken( rop == def_rop),
 104                 "wrong ROP2 %d after release %p/%p\n", rop, old_hdc, hdc );
 105             SetROP2( old_hdc, def_rop );
 106         }
 107         else
 108             ok( rop == def_rop, "wrong ROP2 %d after release %p/%p\n", rop, old_hdc, hdc );
 109     }
 110     while (i > 0) ReleaseDC( hwnd_cache, hdcs[--i] );
 111
 112     /* test own DC */
 113
 114     hdc = GetDC( hwnd_owndc );
 115     SetROP2( hdc, R2_WHITE );
 116     rop = GetROP2( hdc );
 117     ok( rop == R2_WHITE, "wrong ROP2 %d\n", rop );
 118
 119     old_hdc = hdc;
 120     ReleaseDC( hwnd_owndc, hdc );
 121     hdc = GetDC( hwnd_owndc );
 122     ok( old_hdc == hdc, "didn't get same DC %p/%p\n", old_hdc, hdc );
 123     rop = GetROP2( hdc );
 124     ok( rop == R2_WHITE, "wrong ROP2 %d after release\n", rop );
 125     ReleaseDC( hwnd_owndc, hdc );
 126     rop = GetROP2( hdc );
 127     ok( rop == R2_WHITE, "wrong ROP2 %d after second release\n", rop );
 128
 129     /* test class DC */
 130
 131     hdc = GetDC( hwnd_classdc );
 132     SetROP2( hdc, R2_WHITE );
 133     rop = GetROP2( hdc );
 134     ok( rop == R2_WHITE, "wrong ROP2 %d\n", rop );
 135
 136     old_hdc = hdc;
 137     ReleaseDC( hwnd_classdc, hdc );
 138     hdc = GetDC( hwnd_classdc );
 139     ok( old_hdc == hdc, "didn't get same DC %p/%p\n", old_hdc, hdc );
 140     rop = GetROP2( hdc );
 141     ok( rop == R2_WHITE, "wrong ROP2 %d after release\n", rop );
 142     ReleaseDC( hwnd_classdc, hdc );
 143     rop = GetROP2( hdc );
 144     ok( rop == R2_WHITE, "wrong ROP2 %d after second release\n", rop );
 145
 146     /* test class DC with 2 windows */
 147
 148     old_hdc = GetDC( hwnd_classdc );
 149     SetROP2( old_hdc, R2_BLACK );
 150     hdc = GetDC( hwnd_classdc2 );
 151     ok( old_hdc == hdc, "didn't get same DC %p/%p\n", old_hdc, hdc );
 152     rop = GetROP2( hdc );
 153     ok( rop == R2_BLACK, "wrong ROP2 %d for other window\n", rop );
 154     ReleaseDC( hwnd_classdc, old_hdc );
 155     ReleaseDC( hwnd_classdc, hdc );
 156     rop = GetROP2( hdc );
 157     ok( rop == R2_BLACK, "wrong ROP2 %d after release\n", rop );
 158 }
 159
 160
 161 /* test behavior with various invalid parameters */
 162 static void test_parameters(void)
 163 {
 164     HDC hdc;
 165
 166     hdc = GetDC( hwnd_cache );
 167     ok( ReleaseDC( hwnd_owndc, hdc ), "ReleaseDC with wrong window should succeed\n" );
 168
 169     hdc = GetDC( hwnd_cache );
 170     ok( !ReleaseDC( hwnd_cache, 0 ), "ReleaseDC with wrong HDC should fail\n" );
 171     ok( ReleaseDC( hwnd_cache, hdc ), "correct ReleaseDC should succeed\n" );
 172     ok( !ReleaseDC( hwnd_cache, hdc ), "second ReleaseDC should fail\n" );
 173
 174     hdc = GetDC( hwnd_owndc );
 175     ok( ReleaseDC( hwnd_cache, hdc ), "ReleaseDC with wrong window should succeed\n" );
 176     hdc = GetDC( hwnd_owndc );
 177     ok( ReleaseDC( hwnd_owndc, hdc ), "correct ReleaseDC should succeed\n" );
 178     ok( ReleaseDC( hwnd_owndc, hdc ), "second ReleaseDC should succeed\n" );
 179
 180     hdc = GetDC( hwnd_classdc );
 181     ok( ReleaseDC( hwnd_cache, hdc ), "ReleaseDC with wrong window should succeed\n" );
 182     hdc = GetDC( hwnd_classdc );
 183     ok( ReleaseDC( hwnd_classdc, hdc ), "correct ReleaseDC should succeed\n" );
 184     ok( ReleaseDC( hwnd_classdc, hdc ), "second ReleaseDC should succeed\n" );
 185 }
 186
 187
 188 static void test_dc_visrgn(void)
 189 {
 190     HDC old_hdc, hdc;
 191     HRGN hrgn, hrgn2;
 192     RECT rect;
 193
 194     /* cache DC */
 195
 196     SetRect( &rect, 10, 10, 20, 20 );
 197     MapWindowPoints( hwnd_cache, 0, (POINT *)&rect, 2 );
 198     hrgn = CreateRectRgnIndirect( &rect );
 199     hdc = GetDCEx( hwnd_cache, hrgn, DCX_INTERSECTRGN | DCX_USESTYLE );
 200     SetRectEmpty( &rect );
 201     GetClipBox( hdc, &rect );
 202     ok( rect.left >= 10 && rect.top >= 10 && rect.right <= 20 && rect.bottom <= 20,
 203         "invalid clip box %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
 204     ok( GetRgnBox( hrgn, &rect ) != ERROR, "region must still be valid\n" );
 205     ReleaseDC( hwnd_cache, hdc );
 206     ok( GetRgnBox( hrgn, &rect ) == ERROR, "region must no longer be valid\n" );
 207
 208     /* cache DC with NORESETATTRS */
 209
 210     SetRect( &rect, 10, 10, 20, 20 );
 211     MapWindowPoints( hwnd_cache, 0, (POINT *)&rect, 2 );
 212     hrgn = CreateRectRgnIndirect( &rect );
 213     hdc = GetDCEx( hwnd_cache, hrgn, DCX_INTERSECTRGN | DCX_USESTYLE | DCX_NORESETATTRS );
 214     SetRectEmpty( &rect );
 215     GetClipBox( hdc, &rect );
 216     ok( rect.left >= 10 && rect.top >= 10 && rect.right <= 20 && rect.bottom <= 20,
 217         "invalid clip box %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
 218     ok( GetRgnBox( hrgn, &rect ) != ERROR, "region must still be valid\n" );
 219     ReleaseDC( hwnd_cache, hdc );
 220     ok( GetRgnBox( hrgn, &rect ) == ERROR, "region must no longer be valid\n" );
 221     hdc = GetDCEx( hwnd_cache, 0, DCX_USESTYLE | DCX_NORESETATTRS );
 222     SetRectEmpty( &rect );
 223     GetClipBox( hdc, &rect );
 224     ok( !(rect.left >= 10 && rect.top >= 10 && rect.right <= 20 && rect.bottom <= 20),
 225         "clip box should have been reset %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
 226     ReleaseDC( hwnd_cache, hdc );
 227
 228     /* window DC */
 229
 230     SetRect( &rect, 10, 10, 20, 20 );
 231     MapWindowPoints( hwnd_owndc, 0, (POINT *)&rect, 2 );
 232     hrgn = CreateRectRgnIndirect( &rect );
 233     hdc = GetDCEx( hwnd_owndc, hrgn, DCX_INTERSECTRGN | DCX_USESTYLE );
 234     SetRectEmpty( &rect );
 235     GetClipBox( hdc, &rect );
 236     ok( rect.left >= 10 && rect.top >= 10 && rect.right <= 20 && rect.bottom <= 20,
 237         "invalid clip box %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
 238     ok( GetRgnBox( hrgn, &rect ) != ERROR, "region must still be valid\n" );
 239     ReleaseDC( hwnd_owndc, hdc );
 240     ok( GetRgnBox( hrgn, &rect ) != ERROR, "region must still be valid\n" );
 241     SetRectEmpty( &rect );
 242     GetClipBox( hdc, &rect );
 243     ok( rect.left >= 10 && rect.top >= 10 && rect.right <= 20 && rect.bottom <= 20,
 244         "invalid clip box %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
 245     hdc = GetDCEx( hwnd_owndc, 0, DCX_USESTYLE );
 246     SetRectEmpty( &rect );
 247     GetClipBox( hdc, &rect );
 248     ok( rect.left >= 10 && rect.top >= 10 && rect.right <= 20 && rect.bottom <= 20,
 249         "invalid clip box %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
 250     ok( GetRgnBox( hrgn, &rect ) != ERROR, "region must still be valid\n" );
 251     ReleaseDC( hwnd_owndc, hdc );
 252     ok( GetRgnBox( hrgn, &rect ) != ERROR, "region must still be valid\n" );
 253
 254     SetRect( &rect, 20, 20, 30, 30 );
 255     MapWindowPoints( hwnd_owndc, 0, (POINT *)&rect, 2 );
 256     hrgn2 = CreateRectRgnIndirect( &rect );
 257     hdc = GetDCEx( hwnd_owndc, hrgn2, DCX_INTERSECTRGN | DCX_USESTYLE );
 258     ok( GetRgnBox( hrgn, &rect ) == ERROR, "region must no longer be valid\n" );
 259     SetRectEmpty( &rect );
 260     GetClipBox( hdc, &rect );
 261     ok( rect.left >= 20 && rect.top >= 20 && rect.right <= 30 && rect.bottom <= 30,
 262         "invalid clip box %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
 263     ok( GetRgnBox( hrgn2, &rect ) != ERROR, "region2 must still be valid\n" );
 264     ReleaseDC( hwnd_owndc, hdc );
 265     ok( GetRgnBox( hrgn2, &rect ) != ERROR, "region2 must still be valid\n" );
 266     hdc = GetDCEx( hwnd_owndc, 0, DCX_EXCLUDERGN | DCX_USESTYLE );
 267     ok( GetRgnBox( hrgn2, &rect ) == ERROR, "region must no longer be valid\n" );
 268     SetRectEmpty( &rect );
 269     GetClipBox( hdc, &rect );
 270     ok( !(rect.left >= 20 && rect.top >= 20 && rect.right <= 30 && rect.bottom <= 30),
 271         "clip box should have been reset %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
 272     ReleaseDC( hwnd_owndc, hdc );
 273
 274     /* class DC */
 275
 276     SetRect( &rect, 10, 10, 20, 20 );
 277     MapWindowPoints( hwnd_classdc, 0, (POINT *)&rect, 2 );
 278     hrgn = CreateRectRgnIndirect( &rect );
 279     hdc = GetDCEx( hwnd_classdc, hrgn, DCX_INTERSECTRGN | DCX_USESTYLE );
 280     SetRectEmpty( &rect );
 281     GetClipBox( hdc, &rect );
 282     ok( rect.left >= 10 && rect.top >= 10 && rect.right <= 20 && rect.bottom <= 20,
 283         "invalid clip box %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
 284     ok( GetRgnBox( hrgn, &rect ) != ERROR, "region must still be valid\n" );
 285     ReleaseDC( hwnd_classdc, hdc );
 286     ok( GetRgnBox( hrgn, &rect ) != ERROR, "region must still be valid\n" );
 287     SetRectEmpty( &rect );
 288     GetClipBox( hdc, &rect );
 289     ok( rect.left >= 10 && rect.top >= 10 && rect.right <= 20 && rect.bottom <= 20,
 290         "invalid clip box %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
 291
 292     hdc = GetDCEx( hwnd_classdc, 0, DCX_USESTYLE );
 293     SetRectEmpty( &rect );
 294     GetClipBox( hdc, &rect );
 295     ok( rect.left >= 10 && rect.top >= 10 && rect.right <= 20 && rect.bottom <= 20,
 296         "invalid clip box %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
 297     ok( GetRgnBox( hrgn, &rect ) != ERROR, "region must still be valid\n" );
 298     ReleaseDC( hwnd_classdc, hdc );
 299     ok( GetRgnBox( hrgn, &rect ) != ERROR, "region must still be valid\n" );
 300
 301     SetRect( &rect, 20, 20, 30, 30 );
 302     MapWindowPoints( hwnd_classdc, 0, (POINT *)&rect, 2 );
 303     hrgn2 = CreateRectRgnIndirect( &rect );
 304     hdc = GetDCEx( hwnd_classdc, hrgn2, DCX_INTERSECTRGN | DCX_USESTYLE );
 305     ok( GetRgnBox( hrgn, &rect ) == ERROR, "region must no longer be valid\n" );
 306     SetRectEmpty( &rect );
 307     GetClipBox( hdc, &rect );
 308     ok( rect.left >= 20 && rect.top >= 20 && rect.right <= 30 && rect.bottom <= 30,
 309         "invalid clip box %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
 310     ok( GetRgnBox( hrgn2, &rect ) != ERROR, "region2 must still be valid\n" );
 311
 312     old_hdc = hdc;
 313     hdc = GetDCEx( hwnd_classdc2, 0, DCX_USESTYLE );
 314     ok( old_hdc == hdc, "did not get the same hdc %p/%p\n", old_hdc, hdc );
 315     ok( GetRgnBox( hrgn2, &rect ) != ERROR, "region2 must still be valid\n" );
 316     SetRectEmpty( &rect );
 317     GetClipBox( hdc, &rect );
 318     ok( !(rect.left >= 20 && rect.top >= 20 && rect.right <= 30 && rect.bottom <= 30),
 319         "clip box should have been reset %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
 320     ReleaseDC( hwnd_classdc2, hdc );
 321     ok( GetRgnBox( hrgn2, &rect ) != ERROR, "region2 must still be valid\n" );
 322     hdc = GetDCEx( hwnd_classdc2, 0, DCX_EXCLUDERGN | DCX_USESTYLE );
 323     ok( GetRgnBox( hrgn2, &rect ) != ERROR, "region2 must still be valid\n" );
 324     ok( !(rect.left >= 20 && rect.top >= 20 && rect.right <= 30 && rect.bottom <= 30),
 325         "clip box must have been reset %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
 326     ReleaseDC( hwnd_classdc2, hdc );
 327 }
 328
 329
 330 /* test various BeginPaint/EndPaint behaviors */
 331 static void test_begin_paint(void)
 332 {
 333     HDC old_hdc, hdc;
 334     RECT rect;
 335     PAINTSTRUCT ps;
 336
 337     /* cache DC */
 338
 339     /* clear update region */
 340     RedrawWindow( hwnd_cache, NULL, 0, RDW_VALIDATE|RDW_NOFRAME|RDW_NOERASE );
 341     SetRect( &rect, 10, 10, 20, 20 );
 342     RedrawWindow( hwnd_cache, &rect, 0, RDW_INVALIDATE );
 343     hdc = BeginPaint( hwnd_cache, &ps );
 344     SetRectEmpty( &rect );
 345     GetClipBox( hdc, &rect );
 346     ok( rect.left >= 10 && rect.top >= 10 && rect.right <= 20 && rect.bottom <= 20,
 347         "invalid clip box %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
 348     EndPaint( hwnd_cache, &ps );
 349
 350     /* window DC */
 351
 352     RedrawWindow( hwnd_owndc, NULL, 0, RDW_VALIDATE|RDW_NOFRAME|RDW_NOERASE );
 353     SetRect( &rect, 10, 10, 20, 20 );
 354     RedrawWindow( hwnd_owndc, &rect, 0, RDW_INVALIDATE );
 355     hdc = BeginPaint( hwnd_owndc, &ps );
 356     SetRectEmpty( &rect );
 357     GetClipBox( hdc, &rect );
 358     ok( rect.left >= 10 && rect.top >= 10 && rect.right <= 20 && rect.bottom <= 20,
 359         "invalid clip box %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
 360     ReleaseDC( hwnd_owndc, hdc );
 361     SetRectEmpty( &rect );
 362     GetClipBox( hdc, &rect );
 363     ok( rect.left >= 10 && rect.top >= 10 && rect.right <= 20 && rect.bottom <= 20,
 364         "invalid clip box %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
 365     ok( GetDC( hwnd_owndc ) == hdc, "got different hdc\n" );
 366     SetRectEmpty( &rect );
 367     GetClipBox( hdc, &rect );
 368     ok( rect.left >= 10 && rect.top >= 10 && rect.right <= 20 && rect.bottom <= 20,
 369         "invalid clip box %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
 370     EndPaint( hwnd_owndc, &ps );
 371     SetRectEmpty( &rect );
 372     GetClipBox( hdc, &rect );
 373     ok( !(rect.left >= 10 && rect.top >= 10 && rect.right <= 20 && rect.bottom <= 20),
 374         "clip box should have been reset %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
 375     RedrawWindow( hwnd_owndc, NULL, 0, RDW_VALIDATE|RDW_NOFRAME|RDW_NOERASE );
 376     SetRect( &rect, 10, 10, 20, 20 );
 377     RedrawWindow( hwnd_owndc, &rect, 0, RDW_INVALIDATE|RDW_ERASE );
 378     ok( GetDC( hwnd_owndc ) == hdc, "got different hdc\n" );
 379     SetRectEmpty( &rect );
 380     GetClipBox( hdc, &rect );
 381     ok( !(rect.left >= 10 && rect.top >= 10 && rect.right <= 20 && rect.bottom <= 20),
 382         "clip box should be the whole window %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
 383     RedrawWindow( hwnd_owndc, NULL, 0, RDW_ERASENOW );
 384     SetRectEmpty( &rect );
 385     GetClipBox( hdc, &rect );
 386     ok( !(rect.left >= 10 && rect.top >= 10 && rect.right <= 20 && rect.bottom <= 20),
 387         "clip box should still be the whole window %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
 388
 389     /* class DC */
 390
 391     RedrawWindow( hwnd_classdc, NULL, 0, RDW_VALIDATE|RDW_NOFRAME|RDW_NOERASE );
 392     SetRect( &rect, 10, 10, 20, 20 );
 393     RedrawWindow( hwnd_classdc, &rect, 0, RDW_INVALIDATE );
 394     hdc = BeginPaint( hwnd_classdc, &ps );
 395     SetRectEmpty( &rect );
 396     GetClipBox( hdc, &rect );
 397     ok( rect.left >= 10 && rect.top >= 10 && rect.right <= 20 && rect.bottom <= 20,
 398         "invalid clip box %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
 399
 400     old_hdc = hdc;
 401     hdc = GetDC( hwnd_classdc2 );
 402     ok( old_hdc == hdc, "did not get the same hdc %p/%p\n", old_hdc, hdc );
 403     SetRectEmpty( &rect );
 404     GetClipBox( hdc, &rect );
 405     ok( !(rect.left >= 10 && rect.top >= 10 && rect.right <= 20 && rect.bottom <= 20),
 406         "clip box should have been reset %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
 407 }
 408
 409 /* test ScrollWindow with window DCs */
 410 static void test_scroll_window(void)
 411 {
 412     PAINTSTRUCT ps;
 413     HDC hdc;
 414     RECT clip, rect;
 415
 416     /* ScrollWindow uses the window DC, ScrollWindowEx doesn't */
 417
 418     UpdateWindow( hwnd_owndc );
 419     SetRect( &clip, 25, 25, 50, 50 );
 420     ScrollWindow( hwnd_owndc, -5, -10, NULL, &clip );
 421     hdc = BeginPaint( hwnd_owndc, &ps );
 422     SetRectEmpty( &rect );
 423     GetClipBox( hdc, &rect );
 424     ok( rect.left >= 25 && rect.top >= 25 && rect.right <= 50 && rect.bottom <= 50,
 425         "invalid clip box %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
 426     EndPaint( hwnd_owndc, &ps );
 427
 428     SetViewportExtEx( hdc, 2, 3, NULL );
 429     SetViewportOrgEx( hdc, 30, 20, NULL );
 430
 431     ScrollWindow( hwnd_owndc, -5, -10, NULL, &clip );
 432     hdc = BeginPaint( hwnd_owndc, &ps );
 433     SetRectEmpty( &rect );
 434     GetClipBox( hdc, &rect );
 435     ok( rect.left >= 25 && rect.top >= 25 && rect.right <= 50 && rect.bottom <= 50,
 436         "invalid clip box %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
 437     EndPaint( hwnd_owndc, &ps );
 438
 439     ScrollWindowEx( hwnd_owndc, -5, -10, NULL, &clip, 0, NULL, SW_INVALIDATE | SW_ERASE );
 440     hdc = BeginPaint( hwnd_owndc, &ps );
 441     SetRectEmpty( &rect );
 442     GetClipBox( hdc, &rect );
 443     ok( rect.left >= -5 && rect.top >= 5 && rect.right <= 20 && rect.bottom <= 30,
 444         "invalid clip box %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
 445     EndPaint( hwnd_owndc, &ps );
 446
 447     SetViewportExtEx( hdc, 1, 1, NULL );
 448     SetViewportOrgEx( hdc, 0, 0, NULL );
 449
 450     ScrollWindowEx( hwnd_owndc, -5, -10, NULL, &clip, 0, NULL, SW_INVALIDATE | SW_ERASE );
 451     hdc = BeginPaint( hwnd_owndc, &ps );
 452     SetRectEmpty( &rect );
 453     GetClipBox( hdc, &rect );
 454     ok( rect.left >= 25 && rect.top >= 25 && rect.right <= 50 && rect.bottom <= 50,
 455         "invalid clip box %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
 456     EndPaint( hwnd_owndc, &ps );
 457 }
 458
 459 static void test_invisible_create(void)
 460 {
 461     HWND hwnd_owndc = CreateWindowA("owndc_class", NULL, WS_OVERLAPPED,
 462                                     0, 200, 100, 100,
 463                                     0, 0, GetModuleHandleA(0), NULL );
 464     HDC dc1, dc2;
 465
 466     dc1 = GetDC(hwnd_owndc);
 467     dc2 = GetDC(hwnd_owndc);
 468
 469     ok(dc1 == dc2, "expected owndc dcs to match\n");
 470
 471     ReleaseDC(hwnd_owndc, dc2);
 472     ReleaseDC(hwnd_owndc, dc1);
 473     DestroyWindow(hwnd_owndc);
 474 }
 475
 476 static void test_dc_layout(void)
 477 {
 478     DWORD (WINAPI *pSetLayout)(HDC hdc, DWORD layout);
 479     DWORD (WINAPI *pGetLayout)(HDC hdc);
 480     HWND hwnd_cache_rtl, hwnd_owndc_rtl, hwnd_classdc_rtl, hwnd_classdc2_rtl;
 481     HDC hdc;
 482     DWORD layout;
 483     HMODULE mod = GetModuleHandleA("gdi32.dll");
 484
 485     pGetLayout = (void *)GetProcAddress( mod, "GetLayout" );
 486     pSetLayout = (void *)GetProcAddress( mod, "SetLayout" );
 487     if (!pGetLayout || !pSetLayout)
 488     {
 489         win_skip( "Don't have SetLayout\n" );
 490         return;
 491     }
 492
 493     hdc = GetDC( hwnd_cache );
 494     pSetLayout( hdc, LAYOUT_RTL );
 495     layout = pGetLayout( hdc );
 496     ReleaseDC( hwnd_cache, hdc );
 497     if (!layout)
 498     {
 499         win_skip( "SetLayout not supported\n" );
 500         return;
 501     }
 502
 503     hwnd_cache_rtl = CreateWindowExA(WS_EX_LAYOUTRTL, "cache_class", NULL, WS_OVERLAPPED | WS_VISIBLE,
 504                                      0, 0, 100, 100, 0, 0, GetModuleHandleA(0), NULL );
 505     hwnd_owndc_rtl = CreateWindowExA(WS_EX_LAYOUTRTL, "owndc_class", NULL, WS_OVERLAPPED | WS_VISIBLE,
 506                                      0, 200, 100, 100, 0, 0, GetModuleHandleA(0), NULL );
 507     hwnd_classdc_rtl = CreateWindowExA(WS_EX_LAYOUTRTL, "classdc_class", NULL, WS_OVERLAPPED | WS_VISIBLE,
 508                                        200, 0, 100, 100, 0, 0, GetModuleHandleA(0), NULL );
 509     hwnd_classdc2_rtl = CreateWindowExA(WS_EX_LAYOUTRTL, "classdc_class", NULL, WS_OVERLAPPED | WS_VISIBLE,
 510                                         200, 200, 100, 100, 0, 0, GetModuleHandleA(0), NULL );
 511     hdc = GetDC( hwnd_cache_rtl );
 512     layout = pGetLayout( hdc );
 513
 514     ok( layout == LAYOUT_RTL, "wrong layout %x\n", layout );
 515     pSetLayout( hdc, 0 );
 516     ReleaseDC( hwnd_cache_rtl, hdc );
 517     hdc = GetDC( hwnd_owndc_rtl );
 518     layout = pGetLayout( hdc );
 519     ok( layout == LAYOUT_RTL, "wrong layout %x\n", layout );
 520     ReleaseDC( hwnd_cache_rtl, hdc );
 521
 522     hdc = GetDC( hwnd_cache );
 523     layout = pGetLayout( hdc );
 524     ok( layout == 0, "wrong layout %x\n", layout );
 525     ReleaseDC( hwnd_cache, hdc );
 526
 527     hdc = GetDC( hwnd_owndc_rtl );
 528     layout = pGetLayout( hdc );
 529     ok( layout == LAYOUT_RTL, "wrong layout %x\n", layout );
 530     pSetLayout( hdc, 0 );
 531     ReleaseDC( hwnd_owndc_rtl, hdc );
 532     hdc = GetDC( hwnd_owndc_rtl );
 533     layout = pGetLayout( hdc );
 534     ok( layout == LAYOUT_RTL, "wrong layout %x\n", layout );
 535     ReleaseDC( hwnd_owndc_rtl, hdc );
 536
 537     hdc = GetDC( hwnd_classdc_rtl );
 538     layout = pGetLayout( hdc );
 539     ok( layout == LAYOUT_RTL, "wrong layout %x\n", layout );
 540     pSetLayout( hdc, 0 );
 541     ReleaseDC( hwnd_classdc_rtl, hdc );
 542     hdc = GetDC( hwnd_classdc2_rtl );
 543     layout = pGetLayout( hdc );
 544     ok( layout == LAYOUT_RTL, "wrong layout %x\n", layout );
 545     ReleaseDC( hwnd_classdc2_rtl, hdc );
 546     hdc = GetDC( hwnd_classdc );
 547     layout = pGetLayout( hdc );
 548     ok( layout == LAYOUT_RTL, "wrong layout %x\n", layout );
 549     ReleaseDC( hwnd_classdc_rtl, hdc );
 550
 551     DestroyWindow(hwnd_classdc2_rtl);
 552     DestroyWindow(hwnd_classdc_rtl);
 553     DestroyWindow(hwnd_owndc_rtl);
 554     DestroyWindow(hwnd_cache_rtl);
 555 }
 556
 557 static void test_destroyed_window(void)
 558 {
 559     HDC dc;
 560
 561     dc = GetDCEx(hwnd_cache, 0, DCX_USESTYLE);
 562     ok(!dc, "Got a non-NULL DC (%p) for a destroyed window.\n", dc);
 563
 564     dc = GetDCEx(hwnd_owndc, 0, DCX_USESTYLE);
 565     ok(!dc, "Got a non-NULL DC (%p) for a destroyed window.\n", dc);
 566
 567     dc = GetDCEx(hwnd_classdc, 0, DCX_USESTYLE);
 568     ok(!dc, "Got a non-NULL DC (%p) for a destroyed window.\n", dc);
 569
 570     dc = GetDCEx(hwnd_classdc2, 0, DCX_USESTYLE);
 571     ok(!dc, "Got a non-NULL DC (%p) for a destroyed window.\n", dc);
 572 }
 573
 574 START_TEST(dce)
 575 {
 576     WNDCLASSA cls;
 577
 578     cls.style = CS_DBLCLKS;
 579     cls.lpfnWndProc = DefWindowProcA;
 580     cls.cbClsExtra = 0;
 581     cls.cbWndExtra = 0;
 582     cls.hInstance = GetModuleHandleA(0);
 583     cls.hIcon = 0;
 584     cls.hCursor = LoadCursorA(0, IDC_ARROW);
 585     cls.hbrBackground = GetStockObject(WHITE_BRUSH);
 586     cls.lpszMenuName = NULL;
 587     cls.lpszClassName = "cache_class";
 588     RegisterClassA(&cls);
 589     cls.style = CS_DBLCLKS | CS_OWNDC;
 590     cls.lpszClassName = "owndc_class";
 591     RegisterClassA(&cls);
 592     cls.style = CS_DBLCLKS | CS_CLASSDC;
 593     cls.lpszClassName = "classdc_class";
 594     RegisterClassA(&cls);
 595
 596     hwnd_cache = CreateWindowA("cache_class", NULL, WS_OVERLAPPED | WS_VISIBLE,
 597                                0, 0, 100, 100,
 598                                0, 0, GetModuleHandleA(0), NULL );
 599     hwnd_owndc = CreateWindowA("owndc_class", NULL, WS_OVERLAPPED | WS_VISIBLE,
 600                                0, 200, 100, 100,
 601                                0, 0, GetModuleHandleA(0), NULL );
 602     hwnd_classdc = CreateWindowA("classdc_class", NULL, WS_OVERLAPPED | WS_VISIBLE,
 603                                  200, 0, 100, 100,
 604                                  0, 0, GetModuleHandleA(0), NULL );
 605     hwnd_classdc2 = CreateWindowA("classdc_class", NULL, WS_OVERLAPPED | WS_VISIBLE,
 606                                   200, 200, 100, 100,
 607                                   0, 0, GetModuleHandleA(0), NULL );
 608     test_dc_attributes();
 609     test_parameters();
 610     test_dc_visrgn();
 611     test_begin_paint();
 612     test_scroll_window();
 613     test_invisible_create();
 614     test_dc_layout();
 615
 616     DestroyWindow(hwnd_classdc2);
 617     DestroyWindow(hwnd_classdc);
 618     DestroyWindow(hwnd_owndc);
 619     DestroyWindow(hwnd_cache);
 620
 621     test_destroyed_window();
 622 }