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 <assert.h>
22 #include <stdlib.h>
23 #include <stdarg.h>
24 #include <stdio.h>
25
26 #include "windef.h"
27 #include "winbase.h"
28 #include "wingdi.h"
29 #include "winuser.h"
30
31 #include "wine/test.h"
32
33 #ifndef DCX_USESTYLE
34 #define DCX_USESTYLE 0x00010000
35 #endif
36
37 static HWND hwnd_cache, hwnd_owndc, hwnd_classdc, hwnd_classdc2;
38
39 /* test behavior of DC attributes with various GetDC/ReleaseDC combinations */
40 static void test_dc_attributes(void)
41 {
42 HDC hdc, old_hdc;
43 INT rop, def_rop;
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
61 hdc = GetDCEx( hwnd_cache, 0, DCX_USESTYLE | DCX_NORESETATTRS );
62 rop = GetROP2( hdc );
63 /* Win9x seems to silently ignore DCX_NORESETATTRS */
64 ok( rop == def_rop || rop == R2_WHITE, "wrong ROP2 %d\n", rop );
65
66 SetROP2( hdc, R2_WHITE );
67 rop = GetROP2( hdc );
68 ok( rop == R2_WHITE, "wrong ROP2 %d\n", rop );
69
70 ReleaseDC( hwnd_cache, hdc );
71 hdc = GetDCEx( hwnd_cache, 0, DCX_USESTYLE | DCX_NORESETATTRS );
72 rop = GetROP2( hdc );
73 ok( rop == def_rop || rop == R2_WHITE, "wrong ROP2 %d after release\n", rop );
74 ReleaseDC( hwnd_cache, hdc );
75
76 hdc = GetDCEx( hwnd_cache, 0, DCX_USESTYLE );
77 rop = GetROP2( hdc );
78 ok( rop == def_rop, "wrong ROP2 %d after release\n", rop );
79 ReleaseDC( hwnd_cache, hdc );
80
81 /* test own DC */
82
83 hdc = GetDC( hwnd_owndc );
84 SetROP2( hdc, R2_WHITE );
85 rop = GetROP2( hdc );
86 ok( rop == R2_WHITE, "wrong ROP2 %d\n", rop );
87
88 old_hdc = hdc;
89 ReleaseDC( hwnd_owndc, hdc );
90 hdc = GetDC( hwnd_owndc );
91 ok( old_hdc == hdc, "didn't get same DC %p/%p\n", old_hdc, hdc );
92 rop = GetROP2( hdc );
93 ok( rop == R2_WHITE, "wrong ROP2 %d after release\n", rop );
94 ReleaseDC( hwnd_owndc, hdc );
95 rop = GetROP2( hdc );
96 ok( rop == R2_WHITE, "wrong ROP2 %d after second release\n", rop );
97
98 /* test class DC */
99
100 hdc = GetDC( hwnd_classdc );
101 SetROP2( hdc, R2_WHITE );
102 rop = GetROP2( hdc );
103 ok( rop == R2_WHITE, "wrong ROP2 %d\n", rop );
104
105 old_hdc = hdc;
106 ReleaseDC( hwnd_classdc, hdc );
107 hdc = GetDC( hwnd_classdc );
108 ok( old_hdc == hdc, "didn't get same DC %p/%p\n", old_hdc, hdc );
109 rop = GetROP2( hdc );
110 ok( rop == R2_WHITE, "wrong ROP2 %d after release\n", rop );
111 ReleaseDC( hwnd_classdc, hdc );
112 rop = GetROP2( hdc );
113 ok( rop == R2_WHITE, "wrong ROP2 %d after second release\n", rop );
114
115 /* test class DC with 2 windows */
116
117 old_hdc = GetDC( hwnd_classdc );
118 SetROP2( old_hdc, R2_BLACK );
119 hdc = GetDC( hwnd_classdc2 );
120 ok( old_hdc == hdc, "didn't get same DC %p/%p\n", old_hdc, hdc );
121 rop = GetROP2( hdc );
122 ok( rop == R2_BLACK, "wrong ROP2 %d for other window\n", rop );
123 ReleaseDC( hwnd_classdc, old_hdc );
124 ReleaseDC( hwnd_classdc, hdc );
125 rop = GetROP2( hdc );
126 ok( rop == R2_BLACK, "wrong ROP2 %d after release\n", rop );
127 }
128
129
130 /* test behavior with various invalid parameters */
131 static void test_parameters(void)
132 {
133 HDC hdc;
134
135 hdc = GetDC( hwnd_cache );
136 ok( ReleaseDC( hwnd_owndc, hdc ), "ReleaseDC with wrong window should succeed\n" );
137
138 hdc = GetDC( hwnd_cache );
139 ok( !ReleaseDC( hwnd_cache, 0 ), "ReleaseDC with wrong HDC should fail\n" );
140 ok( ReleaseDC( hwnd_cache, hdc ), "correct ReleaseDC should succeed\n" );
141 ok( !ReleaseDC( hwnd_cache, hdc ), "second ReleaseDC should fail\n" );
142
143 hdc = GetDC( hwnd_owndc );
144 ok( ReleaseDC( hwnd_cache, hdc ), "ReleaseDC with wrong window should succeed\n" );
145 hdc = GetDC( hwnd_owndc );
146 ok( ReleaseDC( hwnd_owndc, hdc ), "correct ReleaseDC should succeed\n" );
147 ok( ReleaseDC( hwnd_owndc, hdc ), "second ReleaseDC should succeed\n" );
148
149 hdc = GetDC( hwnd_classdc );
150 ok( ReleaseDC( hwnd_cache, hdc ), "ReleaseDC with wrong window should succeed\n" );
151 hdc = GetDC( hwnd_classdc );
152 ok( ReleaseDC( hwnd_classdc, hdc ), "correct ReleaseDC should succeed\n" );
153 ok( ReleaseDC( hwnd_classdc, hdc ), "second ReleaseDC should succeed\n" );
154 }
155
156
157 static void test_dc_visrgn(void)
158 {
159 HDC old_hdc, hdc;
160 HRGN hrgn, hrgn2;
161 RECT rect;
162
163 /* cache DC */
164
165 SetRect( &rect, 10, 10, 20, 20 );
166 MapWindowPoints( hwnd_cache, 0, (POINT *)&rect, 2 );
167 hrgn = CreateRectRgnIndirect( &rect );
168 hdc = GetDCEx( hwnd_cache, hrgn, DCX_INTERSECTRGN | DCX_USESTYLE );
169 SetRectEmpty( &rect );
170 GetClipBox( hdc, &rect );
171 ok( rect.left >= 10 && rect.top >= 10 && rect.right <= 20 && rect.bottom <= 20,
172 "invalid clip box %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
173 ok( GetRgnBox( hrgn, &rect ) != ERROR, "region must still be valid\n" );
174 ReleaseDC( hwnd_cache, hdc );
175 ok( GetRgnBox( hrgn, &rect ) == ERROR, "region must no longer be valid\n" );
176
177 /* cache DC with NORESETATTRS */
178
179 SetRect( &rect, 10, 10, 20, 20 );
180 MapWindowPoints( hwnd_cache, 0, (POINT *)&rect, 2 );
181 hrgn = CreateRectRgnIndirect( &rect );
182 hdc = GetDCEx( hwnd_cache, hrgn, DCX_INTERSECTRGN | DCX_USESTYLE | DCX_NORESETATTRS );
183 SetRectEmpty( &rect );
184 GetClipBox( hdc, &rect );
185 ok( rect.left >= 10 && rect.top >= 10 && rect.right <= 20 && rect.bottom <= 20,
186 "invalid clip box %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
187 ok( GetRgnBox( hrgn, &rect ) != ERROR, "region must still be valid\n" );
188 ReleaseDC( hwnd_cache, hdc );
189 ok( GetRgnBox( hrgn, &rect ) == ERROR, "region must no longer be valid\n" );
190 hdc = GetDCEx( hwnd_cache, 0, DCX_USESTYLE | DCX_NORESETATTRS );
191 SetRectEmpty( &rect );
192 GetClipBox( hdc, &rect );
193 ok( !(rect.left >= 10 && rect.top >= 10 && rect.right <= 20 && rect.bottom <= 20),
194 "clip box sould have been reset %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
195 ReleaseDC( hwnd_cache, hdc );
196
197 /* window DC */
198
199 SetRect( &rect, 10, 10, 20, 20 );
200 MapWindowPoints( hwnd_owndc, 0, (POINT *)&rect, 2 );
201 hrgn = CreateRectRgnIndirect( &rect );
202 hdc = GetDCEx( hwnd_owndc, hrgn, DCX_INTERSECTRGN | DCX_USESTYLE );
203 SetRectEmpty( &rect );
204 GetClipBox( hdc, &rect );
205 ok( rect.left >= 10 && rect.top >= 10 && rect.right <= 20 && rect.bottom <= 20,
206 "invalid clip box %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
207 ok( GetRgnBox( hrgn, &rect ) != ERROR, "region must still be valid\n" );
208 ReleaseDC( hwnd_owndc, hdc );
209 ok( GetRgnBox( hrgn, &rect ) != ERROR, "region must still be valid\n" );
210 SetRectEmpty( &rect );
211 GetClipBox( hdc, &rect );
212 ok( rect.left >= 10 && rect.top >= 10 && rect.right <= 20 && rect.bottom <= 20,
213 "invalid clip box %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
214 hdc = GetDCEx( hwnd_owndc, 0, DCX_USESTYLE );
215 SetRectEmpty( &rect );
216 GetClipBox( hdc, &rect );
217 ok( rect.left >= 10 && rect.top >= 10 && rect.right <= 20 && rect.bottom <= 20,
218 "invalid clip box %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
219 ok( GetRgnBox( hrgn, &rect ) != ERROR, "region must still be valid\n" );
220 ReleaseDC( hwnd_owndc, hdc );
221 ok( GetRgnBox( hrgn, &rect ) != ERROR, "region must still be valid\n" );
222
223 SetRect( &rect, 20, 20, 30, 30 );
224 MapWindowPoints( hwnd_owndc, 0, (POINT *)&rect, 2 );
225 hrgn2 = CreateRectRgnIndirect( &rect );
226 hdc = GetDCEx( hwnd_owndc, hrgn2, DCX_INTERSECTRGN | DCX_USESTYLE );
227 ok( GetRgnBox( hrgn, &rect ) == ERROR, "region must no longer be valid\n" );
228 SetRectEmpty( &rect );
229 GetClipBox( hdc, &rect );
230 ok( rect.left >= 20 && rect.top >= 20 && rect.right <= 30 && rect.bottom <= 30,
231 "invalid clip box %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
232 ok( GetRgnBox( hrgn2, &rect ) != ERROR, "region2 must still be valid\n" );
233 ReleaseDC( hwnd_owndc, hdc );
234 ok( GetRgnBox( hrgn2, &rect ) != ERROR, "region2 must still be valid\n" );
235 hdc = GetDCEx( hwnd_owndc, 0, DCX_EXCLUDERGN | DCX_USESTYLE );
236 ok( GetRgnBox( hrgn2, &rect ) == ERROR, "region must no longer be valid\n" );
237 SetRectEmpty( &rect );
238 GetClipBox( hdc, &rect );
239 ok( !(rect.left >= 20 && rect.top >= 20 && rect.right <= 30 && rect.bottom <= 30),
240 "clip box should have been reset %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
241 ReleaseDC( hwnd_owndc, hdc );
242
243 /* class DC */
244
245 SetRect( &rect, 10, 10, 20, 20 );
246 MapWindowPoints( hwnd_classdc, 0, (POINT *)&rect, 2 );
247 hrgn = CreateRectRgnIndirect( &rect );
248 hdc = GetDCEx( hwnd_classdc, hrgn, DCX_INTERSECTRGN | DCX_USESTYLE );
249 SetRectEmpty( &rect );
250 GetClipBox( hdc, &rect );
251 ok( rect.left >= 10 && rect.top >= 10 && rect.right <= 20 && rect.bottom <= 20,
252 "invalid clip box %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
253 ok( GetRgnBox( hrgn, &rect ) != ERROR, "region must still be valid\n" );
254 ReleaseDC( hwnd_classdc, hdc );
255 ok( GetRgnBox( hrgn, &rect ) != ERROR, "region must still be valid\n" );
256 SetRectEmpty( &rect );
257 GetClipBox( hdc, &rect );
258 ok( rect.left >= 10 && rect.top >= 10 && rect.right <= 20 && rect.bottom <= 20,
259 "invalid clip box %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
260
261 hdc = GetDCEx( hwnd_classdc, 0, DCX_USESTYLE );
262 SetRectEmpty( &rect );
263 GetClipBox( hdc, &rect );
264 ok( rect.left >= 10 && rect.top >= 10 && rect.right <= 20 && rect.bottom <= 20,
265 "invalid clip box %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
266 ok( GetRgnBox( hrgn, &rect ) != ERROR, "region must still be valid\n" );
267 ReleaseDC( hwnd_classdc, hdc );
268 ok( GetRgnBox( hrgn, &rect ) != ERROR, "region must still be valid\n" );
269
270 SetRect( &rect, 20, 20, 30, 30 );
271 MapWindowPoints( hwnd_classdc, 0, (POINT *)&rect, 2 );
272 hrgn2 = CreateRectRgnIndirect( &rect );
273 hdc = GetDCEx( hwnd_classdc, hrgn2, DCX_INTERSECTRGN | DCX_USESTYLE );
274 ok( GetRgnBox( hrgn, &rect ) == ERROR, "region must no longer be valid\n" );
275 SetRectEmpty( &rect );
276 GetClipBox( hdc, &rect );
277 ok( rect.left >= 20 && rect.top >= 20 && rect.right <= 30 && rect.bottom <= 30,
278 "invalid clip box %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
279 ok( GetRgnBox( hrgn2, &rect ) != ERROR, "region2 must still be valid\n" );
280
281 old_hdc = hdc;
282 hdc = GetDCEx( hwnd_classdc2, 0, DCX_USESTYLE );
283 ok( old_hdc == hdc, "did not get the same hdc %p/%p\n", old_hdc, hdc );
284 ok( GetRgnBox( hrgn2, &rect ) != ERROR, "region2 must still be valid\n" );
285 SetRectEmpty( &rect );
286 GetClipBox( hdc, &rect );
287 ok( !(rect.left >= 20 && rect.top >= 20 && rect.right <= 30 && rect.bottom <= 30),
288 "clip box should have been reset %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
289 ReleaseDC( hwnd_classdc2, hdc );
290 ok( GetRgnBox( hrgn2, &rect ) != ERROR, "region2 must still be valid\n" );
291 hdc = GetDCEx( hwnd_classdc2, 0, DCX_EXCLUDERGN | DCX_USESTYLE );
292 ok( GetRgnBox( hrgn2, &rect ) != ERROR, "region2 must still be valid\n" );
293 ok( !(rect.left >= 20 && rect.top >= 20 && rect.right <= 30 && rect.bottom <= 30),
294 "clip box must have been reset %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
295 ReleaseDC( hwnd_classdc2, hdc );
296 }
297
298
299 /* test various BeginPaint/EndPaint behaviors */
300 static void test_begin_paint(void)
301 {
302 HDC old_hdc, hdc;
303 RECT rect;
304 PAINTSTRUCT ps;
305
306 /* cache DC */
307
308 /* clear update region */
309 RedrawWindow( hwnd_cache, NULL, 0, RDW_VALIDATE|RDW_NOFRAME|RDW_NOERASE );
310 SetRect( &rect, 10, 10, 20, 20 );
311 RedrawWindow( hwnd_cache, &rect, 0, RDW_INVALIDATE );
312 hdc = BeginPaint( hwnd_cache, &ps );
313 SetRectEmpty( &rect );
314 GetClipBox( hdc, &rect );
315 ok( rect.left >= 10 && rect.top >= 10 && rect.right <= 20 && rect.bottom <= 20,
316 "invalid clip box %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
317 EndPaint( hwnd_cache, &ps );
318
319 /* window DC */
320
321 RedrawWindow( hwnd_owndc, NULL, 0, RDW_VALIDATE|RDW_NOFRAME|RDW_NOERASE );
322 SetRect( &rect, 10, 10, 20, 20 );
323 RedrawWindow( hwnd_owndc, &rect, 0, RDW_INVALIDATE );
324 hdc = BeginPaint( hwnd_owndc, &ps );
325 SetRectEmpty( &rect );
326 GetClipBox( hdc, &rect );
327 ok( rect.left >= 10 && rect.top >= 10 && rect.right <= 20 && rect.bottom <= 20,
328 "invalid clip box %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
329 ReleaseDC( hwnd_owndc, hdc );
330 SetRectEmpty( &rect );
331 GetClipBox( hdc, &rect );
332 ok( rect.left >= 10 && rect.top >= 10 && rect.right <= 20 && rect.bottom <= 20,
333 "invalid clip box %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
334 ok( GetDC( hwnd_owndc ) == hdc, "got different hdc\n" );
335 SetRectEmpty( &rect );
336 GetClipBox( hdc, &rect );
337 ok( rect.left >= 10 && rect.top >= 10 && rect.right <= 20 && rect.bottom <= 20,
338 "invalid clip box %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
339 EndPaint( hwnd_owndc, &ps );
340 SetRectEmpty( &rect );
341 GetClipBox( hdc, &rect );
342 ok( !(rect.left >= 10 && rect.top >= 10 && rect.right <= 20 && rect.bottom <= 20),
343 "clip box should have been reset %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
344 RedrawWindow( hwnd_owndc, NULL, 0, RDW_VALIDATE|RDW_NOFRAME|RDW_NOERASE );
345 SetRect( &rect, 10, 10, 20, 20 );
346 RedrawWindow( hwnd_owndc, &rect, 0, RDW_INVALIDATE|RDW_ERASE );
347 ok( GetDC( hwnd_owndc ) == hdc, "got different hdc\n" );
348 SetRectEmpty( &rect );
349 GetClipBox( hdc, &rect );
350 ok( !(rect.left >= 10 && rect.top >= 10 && rect.right <= 20 && rect.bottom <= 20),
351 "clip box should be the whole window %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
352 RedrawWindow( hwnd_owndc, NULL, 0, RDW_ERASENOW );
353 SetRectEmpty( &rect );
354 GetClipBox( hdc, &rect );
355 ok( !(rect.left >= 10 && rect.top >= 10 && rect.right <= 20 && rect.bottom <= 20),
356 "clip box should still be the whole window %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
357
358 /* class DC */
359
360 RedrawWindow( hwnd_classdc, NULL, 0, RDW_VALIDATE|RDW_NOFRAME|RDW_NOERASE );
361 SetRect( &rect, 10, 10, 20, 20 );
362 RedrawWindow( hwnd_classdc, &rect, 0, RDW_INVALIDATE );
363 hdc = BeginPaint( hwnd_classdc, &ps );
364 SetRectEmpty( &rect );
365 GetClipBox( hdc, &rect );
366 ok( rect.left >= 10 && rect.top >= 10 && rect.right <= 20 && rect.bottom <= 20,
367 "invalid clip box %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
368
369 old_hdc = hdc;
370 hdc = GetDC( hwnd_classdc2 );
371 ok( old_hdc == hdc, "did not get the same hdc %p/%p\n", old_hdc, hdc );
372 SetRectEmpty( &rect );
373 GetClipBox( hdc, &rect );
374 ok( !(rect.left >= 10 && rect.top >= 10 && rect.right <= 20 && rect.bottom <= 20),
375 "clip box should have been reset %d,%d-%d,%d\n", rect.left, rect.top, rect.right, rect.bottom );
376 }
377
378 static void test_invisible_create(void)
379 {
380 HWND hwnd_owndc = CreateWindowA("owndc_class", NULL, WS_OVERLAPPED,
381 0, 200, 100, 100,
382 0, 0, GetModuleHandleA(0), NULL );
383 HDC dc1, dc2;
384
385 dc1 = GetDC(hwnd_owndc);
386 dc2 = GetDC(hwnd_owndc);
387
388 ok(dc1 == dc2, "expected owndc dcs to match\n");
389
390 ReleaseDC(hwnd_owndc, dc2);
391 ReleaseDC(hwnd_owndc, dc1);
392 DestroyWindow(hwnd_owndc);
393 }
394
395 START_TEST(dce)
396 {
397 WNDCLASSA cls;
398
399 cls.style = CS_DBLCLKS;
400 cls.lpfnWndProc = DefWindowProcA;
401 cls.cbClsExtra = 0;
402 cls.cbWndExtra = 0;
403 cls.hInstance = GetModuleHandleA(0);
404 cls.hIcon = 0;
405 cls.hCursor = LoadCursorA(0, (LPSTR)IDC_ARROW);
406 cls.hbrBackground = GetStockObject(WHITE_BRUSH);
407 cls.lpszMenuName = NULL;
408 cls.lpszClassName = "cache_class";
409 RegisterClassA(&cls);
410 cls.style = CS_DBLCLKS | CS_OWNDC;
411 cls.lpszClassName = "owndc_class";
412 RegisterClassA(&cls);
413 cls.style = CS_DBLCLKS | CS_CLASSDC;
414 cls.lpszClassName = "classdc_class";
415 RegisterClassA(&cls);
416
417 hwnd_cache = CreateWindowA("cache_class", NULL, WS_OVERLAPPED | WS_VISIBLE,
418 0, 0, 100, 100,
419 0, 0, GetModuleHandleA(0), NULL );
420 hwnd_owndc = CreateWindowA("owndc_class", NULL, WS_OVERLAPPED | WS_VISIBLE,
421 0, 200, 100, 100,
422 0, 0, GetModuleHandleA(0), NULL );
423 hwnd_classdc = CreateWindowA("classdc_class", NULL, WS_OVERLAPPED | WS_VISIBLE,
424 200, 0, 100, 100,
425 0, 0, GetModuleHandleA(0), NULL );
426 hwnd_classdc2 = CreateWindowA("classdc_class", NULL, WS_OVERLAPPED | WS_VISIBLE,
427 200, 200, 100, 100,
428 0, 0, GetModuleHandleA(0), NULL );
429 test_dc_attributes();
430 test_parameters();
431 test_dc_visrgn();
432 test_begin_paint();
433 test_invisible_create();
434 }
435
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