1 /*
2  * Unit tests for monitor APIs
3  *
4  * Copyright 2005 Huw Davies
5  * Copyright 2008 Dmitry Timoshkov
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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
20  */
21 
22 #include "wine/test.h"
23 #include "winbase.h"
24 #include "wingdi.h"
25 #include "winuser.h"
26 
27 static HMODULE hdll;
28 static LONG (WINAPI *pChangeDisplaySettingsExA)(LPCSTR, LPDEVMODEA, HWND, DWORD, LPVOID);
29 static LONG (WINAPI *pChangeDisplaySettingsExW)(LPCWSTR, LPDEVMODEW, HWND, DWORD, LPVOID);
30 static BOOL (WINAPI *pEnumDisplayDevicesA)(LPCSTR,DWORD,LPDISPLAY_DEVICEA,DWORD);
31 static BOOL (WINAPI *pEnumDisplayMonitors)(HDC,LPRECT,MONITORENUMPROC,LPARAM);
32 static BOOL (WINAPI *pGetMonitorInfoA)(HMONITOR,LPMONITORINFO);
33 static BOOL (WINAPI *pGetMonitorInfoW)(HMONITOR,LPMONITORINFO);
34 static HMONITOR (WINAPI *pMonitorFromPoint)(POINT,DWORD);
35 static HMONITOR (WINAPI *pMonitorFromRect)(LPCRECT,DWORD);
36 static HMONITOR (WINAPI *pMonitorFromWindow)(HWND,DWORD);
37 static LONG (WINAPI *pGetDisplayConfigBufferSizes)(UINT32,UINT32*,UINT32*);
38 
39 static void init_function_pointers(void)
40 {
41     hdll = GetModuleHandleA("user32.dll");
42 
43 #define GET_PROC(func) \
44     p ## func = (void*)GetProcAddress(hdll, #func); \
45     if(!p ## func) \
46       trace("GetProcAddress(%s) failed\n", #func);
47 
48     GET_PROC(ChangeDisplaySettingsExA)
49     GET_PROC(ChangeDisplaySettingsExW)
50     GET_PROC(EnumDisplayDevicesA)
51     GET_PROC(EnumDisplayMonitors)
52     GET_PROC(GetDisplayConfigBufferSizes)
53     GET_PROC(GetMonitorInfoA)
54     GET_PROC(GetMonitorInfoW)
55     GET_PROC(MonitorFromPoint)
56     GET_PROC(MonitorFromRect)
57     GET_PROC(MonitorFromWindow)
58 
59 #undef GET_PROC
60 }
61 
62 static BOOL CALLBACK monitor_enum_proc(HMONITOR hmon, HDC hdc, LPRECT lprc,
63                                        LPARAM lparam)
64 {
65     MONITORINFOEXA mi;
66     char *primary = (char *)lparam;
67 
68     mi.cbSize = sizeof(mi);
69 
70     ok(pGetMonitorInfoA(hmon, (MONITORINFO*)&mi), "GetMonitorInfo failed\n");
71     if (mi.dwFlags & MONITORINFOF_PRIMARY)
72         strcpy(primary, mi.szDevice);
73 
74     return TRUE;
75 }
76 
77 static void test_enumdisplaydevices(void)
78 {
79     DISPLAY_DEVICEA dd;
80     char primary_device_name[32];
81     char primary_monitor_device_name[32];
82     DWORD primary_num = -1, num = 0;
83     BOOL ret;
84 
85     if (!pEnumDisplayDevicesA)
86     {
87         win_skip("EnumDisplayDevicesA is not available\n");
88         return;
89     }
90 
91     dd.cb = sizeof(dd);
92     for (num = 0;; num++)
93     {
94         HDC dc;
95         ret = pEnumDisplayDevicesA(NULL, num, &dd, 0);
96         if(!ret) break;
97 
98         if(dd.StateFlags & DISPLAY_DEVICE_PRIMARY_DEVICE)
99         {
100             strcpy(primary_device_name, dd.DeviceName);
101             primary_num = num;
102         }
103         if(dd.StateFlags & DISPLAY_DEVICE_ATTACHED_TO_DESKTOP)
104         {
105             /* test creating DC */
106             dc = CreateDCA(dd.DeviceName, NULL, NULL, NULL);
107             ok(dc != NULL, "Failed to CreateDC(\"%s\") err=%d\n", dd.DeviceName, GetLastError());
108             DeleteDC(dc);
109         }
110     }
111 
112     if (primary_num == -1 || !pEnumDisplayMonitors || !pGetMonitorInfoA)
113     {
114         win_skip("EnumDisplayMonitors or GetMonitorInfoA are not available\n");
115         return;
116     }
117 
118     primary_monitor_device_name[0] = 0;
119     ret = pEnumDisplayMonitors(NULL, NULL, monitor_enum_proc, (LPARAM)primary_monitor_device_name);
120     ok(ret, "EnumDisplayMonitors failed\n");
121     ok(!strcmp(primary_monitor_device_name, primary_device_name),
122        "monitor device name %s, device name %s\n", primary_monitor_device_name,
123        primary_device_name);
124 
125     dd.cb = sizeof(dd);
126     for (num = 0;; num++)
127     {
128         ret = pEnumDisplayDevicesA(primary_device_name, num, &dd, 0);
129         if (!ret) break;
130 
131         dd.DeviceID[63] = 0;
132         ok(!strcasecmp(dd.DeviceID, "Monitor\\Default_Monitor\\{4D36E96E-E325-11CE-BFC1-08002BE10318}\\"),
133            "DeviceID \"%s\" does not start with \"Monitor\\Default_Monitor\\...\" prefix\n", dd.DeviceID);
134     }
135 }
136 
137 struct vid_mode
138 {
139     DWORD w, h, bpp, freq, fields;
140     BOOL must_succeed;
141 };
142 
143 static const struct vid_mode vid_modes_test[] = {
144     {640, 480, 0, 0, DM_PELSWIDTH | DM_PELSHEIGHT | DM_BITSPERPEL | DM_DISPLAYFREQUENCY, 0},
145     {640, 480, 0, 0, DM_PELSWIDTH | DM_PELSHEIGHT |                 DM_DISPLAYFREQUENCY, 1},
146     {640, 480, 0, 0, DM_PELSWIDTH | DM_PELSHEIGHT | DM_BITSPERPEL                      , 0},
147     {640, 480, 0, 0, DM_PELSWIDTH | DM_PELSHEIGHT                                      , 1},
148     {640, 480, 0, 0,                                DM_BITSPERPEL                      , 0},
149     {640, 480, 0, 0,                                                DM_DISPLAYFREQUENCY, 0},
150 
151     {0, 0, 0, 0, DM_PELSWIDTH, 0},
152     {0, 0, 0, 0, DM_PELSHEIGHT, 0},
153 
154     {640, 480, 0, 0, DM_PELSWIDTH, 0},
155     {640, 480, 0, 0, DM_PELSHEIGHT, 0},
156     {  0, 480, 0, 0, DM_PELSWIDTH | DM_PELSHEIGHT, 0},
157     {640,   0, 0, 0, DM_PELSWIDTH | DM_PELSHEIGHT, 0},
158 
159     /* the following test succeeds under XP SP3
160     {0, 0, 0, 0, DM_DISPLAYFREQUENCY, 0}
161     */
162 };
163 #define vid_modes_cnt (sizeof(vid_modes_test) / sizeof(vid_modes_test[0]))
164 
165 static void test_ChangeDisplaySettingsEx(void)
166 {
167     DEVMODEA dm;
168     DEVMODEW dmW;
169     DWORD width;
170     LONG res;
171     int i;
172 
173     if (!pChangeDisplaySettingsExA)
174     {
175         win_skip("ChangeDisplaySettingsExA is not available\n");
176         return;
177     }
178 
179     SetLastError(0xdeadbeef);
180     res = EnumDisplaySettingsA(NULL, ENUM_CURRENT_SETTINGS, &dm);
181     ok(res, "EnumDisplaySettings error %u\n", GetLastError());
182 
183     width = dm.dmPelsWidth;
184 
185     dm.dmDriverExtra = 1;
186     res = ChangeDisplaySettingsA(&dm, CDS_TEST);
187     ok(res == DISP_CHANGE_SUCCESSFUL,
188        "ChangeDisplaySettingsA returned %d, expected DISP_CHANGE_SUCCESSFUL\n", res);
189     ok(dm.dmDriverExtra == 0 || broken(dm.dmDriverExtra == 1) /* win9x */,
190        "ChangeDisplaySettingsA didn't reset dmDriverExtra to 0\n");
191 
192     /* crashes under XP SP3 for large dmDriverExtra values */
193     dm.dmDriverExtra = 1;
194     res = pChangeDisplaySettingsExA(NULL, &dm, NULL, CDS_TEST, NULL);
195     ok(res == DISP_CHANGE_SUCCESSFUL,
196        "ChangeDisplaySettingsExW returned %d, expected DISP_CHANGE_SUCCESSFUL\n", res);
197     ok(dm.dmDriverExtra == 1, "ChangeDisplaySettingsExA shouldn't reset dmDriverExtra to 0\n");
198 
199     memset(&dmW, 0, sizeof(dmW));
200     dmW.dmSize = sizeof(dmW);
201     dmW.dmFields = DM_PELSWIDTH | DM_PELSHEIGHT;
202     dmW.dmPelsWidth = dm.dmPelsWidth;
203     dmW.dmPelsHeight = dm.dmPelsHeight;
204     dmW.dmDriverExtra = 1;
205     SetLastError(0xdeadbeef);
206     res = ChangeDisplaySettingsW(&dmW, CDS_TEST);
207     if (GetLastError() != ERROR_CALL_NOT_IMPLEMENTED)
208     {
209         ok(res == DISP_CHANGE_SUCCESSFUL,
210            "ChangeDisplaySettingsW returned %d, expected DISP_CHANGE_SUCCESSFUL\n", res);
211         ok(dmW.dmDriverExtra == 0, "ChangeDisplaySettingsW didn't reset dmDriverExtra to 0\n");
212     }
213 
214     /* Apparently XP treats dmDriverExtra being != 0 as an error */
215     dmW.dmDriverExtra = 1;
216     res = pChangeDisplaySettingsExW(NULL, &dmW, NULL, CDS_TEST, NULL);
217     if (GetLastError() != ERROR_CALL_NOT_IMPLEMENTED)
218     {
219         ok(res == DISP_CHANGE_SUCCESSFUL,
220            "ChangeDisplaySettingsExW returned %d, expected DISP_CHANGE_SUCCESSFUL\n", res);
221         ok(dmW.dmDriverExtra == 1, "ChangeDisplaySettingsExW shouldn't reset dmDriverExtra to 0\n");
222     }
223 
224     /* the following 2 tests show that dm.dmSize being 0 is invalid, but
225      * ChangeDisplaySettingsExA still reports success.
226      */
227     memset(&dm, 0, sizeof(dm));
228     dm.dmFields = DM_PELSWIDTH | DM_PELSHEIGHT;
229     dm.dmPelsWidth = width;
230     res = pChangeDisplaySettingsExA(NULL, &dm, NULL, CDS_TEST, NULL);
231     ok(res == DISP_CHANGE_SUCCESSFUL ||
232        res == DISP_CHANGE_BADMODE || /* Win98, WinMe */
233        res == DISP_CHANGE_FAILED, /* NT4 */
234        "ChangeDisplaySettingsExA returned unexpected %d\n", res);
235 
236     memset(&dmW, 0, sizeof(dmW));
237     dmW.dmFields = DM_PELSWIDTH | DM_PELSHEIGHT;
238     dmW.dmPelsWidth = width;
239     SetLastError(0xdeadbeef);
240     res = pChangeDisplaySettingsExW(NULL, &dmW, NULL, CDS_TEST, NULL);
241     if (GetLastError() != ERROR_CALL_NOT_IMPLEMENTED)
242         ok(res == DISP_CHANGE_FAILED ||
243            res == DISP_CHANGE_BADPARAM ||  /* NT4 */
244            res == DISP_CHANGE_BADMODE /* XP SP3 */,
245            "ChangeDisplaySettingsExW returned %d\n", res);
246 
247     memset(&dm, 0, sizeof(dm));
248     dm.dmSize = sizeof(dm);
249 
250     for (i = 0; i < vid_modes_cnt; i++)
251     {
252         dm.dmPelsWidth        = vid_modes_test[i].w;
253         dm.dmPelsHeight       = vid_modes_test[i].h;
254         dm.dmBitsPerPel       = vid_modes_test[i].bpp;
255         dm.dmDisplayFrequency = vid_modes_test[i].freq;
256         dm.dmFields           = vid_modes_test[i].fields;
257         res = pChangeDisplaySettingsExA(NULL, &dm, NULL, CDS_TEST, NULL);
258         ok(vid_modes_test[i].must_succeed ?
259            (res == DISP_CHANGE_SUCCESSFUL || res == DISP_CHANGE_RESTART) :
260            (res == DISP_CHANGE_SUCCESSFUL || res == DISP_CHANGE_RESTART ||
261             res == DISP_CHANGE_BADMODE || res == DISP_CHANGE_BADPARAM),
262            "Unexpected ChangeDisplaySettingsEx() return code for resolution[%d]: %d\n", i, res);
263 
264         if (res == DISP_CHANGE_SUCCESSFUL)
265         {
266             RECT r, r1, virt;
267 
268             SetRect(&virt, 0, 0, GetSystemMetrics(SM_CXVIRTUALSCREEN), GetSystemMetrics(SM_CYVIRTUALSCREEN));
269             if (IsRectEmpty(&virt))  /* NT4 doesn't have SM_CX/YVIRTUALSCREEN */
270                 SetRect(&virt, 0, 0, GetSystemMetrics(SM_CXSCREEN), GetSystemMetrics(SM_CYSCREEN));
271             OffsetRect(&virt, GetSystemMetrics(SM_XVIRTUALSCREEN), GetSystemMetrics(SM_YVIRTUALSCREEN));
272 
273             /* Resolution change resets clip rect */
274             ok(GetClipCursor(&r), "GetClipCursor() failed\n");
275             ok(EqualRect(&r, &virt), "Invalid clip rect: %s\n", wine_dbgstr_rect(&r));
276 
277             if (!ClipCursor(NULL)) continue;
278             ok(GetClipCursor(&r), "GetClipCursor() failed\n");
279             ok(EqualRect(&r, &virt), "Invalid clip rect: %s\n", wine_dbgstr_rect(&r));
280 
281             /* This should always work. Primary monitor is at (0,0) */
282             SetRect(&r1, 10, 10, 20, 20);
283             ok(ClipCursor(&r1), "ClipCursor() failed\n");
284             ok(GetClipCursor(&r), "GetClipCursor() failed\n");
285             ok(EqualRect(&r, &r1), "Invalid clip rect: %s\n", wine_dbgstr_rect(&r));
286             SetRect(&r1, 10, 10, 10, 10);
287             ok(ClipCursor(&r1), "ClipCursor() failed\n");
288             ok(GetClipCursor(&r), "GetClipCursor() failed\n");
289             ok(EqualRect(&r, &r1), "Invalid clip rect: %s\n", wine_dbgstr_rect(&r));
290             SetRect(&r1, 10, 10, 10, 9);
291             ok(!ClipCursor(&r1), "ClipCursor() succeeded\n");
292             /* Windows bug: further clipping fails once an empty rect is set, so we have to reset it */
293             ClipCursor(NULL);
294 
295             SetRect(&r1, virt.left - 10, virt.top - 10, virt.right + 20, virt.bottom + 20);
296             ok(ClipCursor(&r1), "ClipCursor() failed\n");
297             ok(GetClipCursor(&r), "GetClipCursor() failed\n");
298             ok(EqualRect(&r, &virt) || broken(EqualRect(&r, &r1)) /* win9x */,
299                "Invalid clip rect: %s\n", wine_dbgstr_rect(&r));
300             ClipCursor(&virt);
301         }
302     }
303     res = pChangeDisplaySettingsExA(NULL, NULL, NULL, CDS_RESET, NULL);
304     ok(res == DISP_CHANGE_SUCCESSFUL, "Failed to reset default resolution: %d\n", res);
305 }
306 
307 static void test_monitors(void)
308 {
309     HMONITOR monitor, primary, nearest;
310     POINT pt;
311     RECT rc;
312     MONITORINFO mi;
313     MONITORINFOEXA miexa;
314     MONITORINFOEXW miexw;
315     BOOL ret;
316     DWORD i;
317 
318     static const struct
319     {
320         DWORD cbSize;
321         BOOL ret;
322     } testdatami[] = {
323         {0, FALSE},
324         {sizeof(MONITORINFO)+1, FALSE},
325         {sizeof(MONITORINFO)-1, FALSE},
326         {sizeof(MONITORINFO), TRUE},
327         {-1, FALSE},
328         {0xdeadbeef, FALSE},
329     },
330     testdatamiexa[] = {
331         {0, FALSE},
332         {sizeof(MONITORINFOEXA)+1, FALSE},
333         {sizeof(MONITORINFOEXA)-1, FALSE},
334         {sizeof(MONITORINFOEXA), TRUE},
335         {-1, FALSE},
336         {0xdeadbeef, FALSE},
337     },
338     testdatamiexw[] = {
339         {0, FALSE},
340         {sizeof(MONITORINFOEXW)+1, FALSE},
341         {sizeof(MONITORINFOEXW)-1, FALSE},
342         {sizeof(MONITORINFOEXW), TRUE},
343         {-1, FALSE},
344         {0xdeadbeef, FALSE},
345     };
346 
347     if (!pMonitorFromPoint || !pMonitorFromWindow || !pMonitorFromRect)
348     {
349         win_skip("MonitorFromPoint, MonitorFromWindow, or MonitorFromRect is not available\n");
350         return;
351     }
352 
353     pt.x = pt.y = 0;
354     primary = pMonitorFromPoint( pt, MONITOR_DEFAULTTOPRIMARY );
355     ok( primary != 0, "couldn't get primary monitor\n" );
356 
357     monitor = pMonitorFromWindow( 0, MONITOR_DEFAULTTONULL );
358     ok( !monitor, "got %p, should not get a monitor for an invalid window\n", monitor );
359     monitor = pMonitorFromWindow( 0, MONITOR_DEFAULTTOPRIMARY );
360     ok( monitor == primary, "got %p, should get primary %p for MONITOR_DEFAULTTOPRIMARY\n", monitor, primary );
361     monitor = pMonitorFromWindow( 0, MONITOR_DEFAULTTONEAREST );
362     ok( monitor == primary, "got %p, should get primary %p for MONITOR_DEFAULTTONEAREST\n", monitor, primary );
363 
364     SetRect( &rc, 0, 0, 1, 1 );
365     monitor = pMonitorFromRect( &rc, MONITOR_DEFAULTTONULL );
366     ok( monitor == primary, "got %p, should get primary %p\n", monitor, primary );
367 
368     monitor = pMonitorFromRect( &rc, MONITOR_DEFAULTTOPRIMARY );
369     ok( monitor == primary, "got %p, should get primary %p\n", monitor, primary );
370 
371     monitor = pMonitorFromRect( &rc, MONITOR_DEFAULTTONEAREST );
372     ok( monitor == primary, "got %p, should get primary %p\n", monitor, primary );
373 
374     /* Empty rect at 0,0 is considered inside the primary monitor */
375     SetRect( &rc, 0, 0, -1, -1 );
376     monitor = pMonitorFromRect( &rc, MONITOR_DEFAULTTONULL );
377     ok( monitor == primary, "got %p, should get primary %p\n", monitor, primary );
378 
379     /* Even if there is a monitor left of the primary, the primary will have the most overlapping area */
380     SetRect( &rc, -1, 0, 2, 1 );
381     monitor = pMonitorFromRect( &rc, MONITOR_DEFAULTTONULL );
382     ok( monitor == primary, "got %p, should get primary %p\n", monitor, primary );
383 
384     /* But the width of the rect doesn't matter if it's empty. */
385     SetRect( &rc, -1, 0, 2, -1 );
386     monitor = pMonitorFromRect( &rc, MONITOR_DEFAULTTONULL );
387     ok( monitor != primary, "got primary %p\n", monitor );
388 
389     if (!pGetMonitorInfoA)
390     {
391         win_skip("GetMonitorInfoA is not available\n");
392         return;
393     }
394 
395     /* Search for a monitor that has no others equally near to (left, top-1) */
396     SetRect( &rc, -1, -2, 2, 0 );
397     monitor = pMonitorFromRect( &rc, MONITOR_DEFAULTTONULL );
398     nearest = primary;
399     while (monitor != NULL)
400     {
401         ok( monitor != primary, "got primary %p\n", monitor );
402         nearest = monitor;
403         mi.cbSize = sizeof(mi);
404         ret = pGetMonitorInfoA( monitor, &mi );
405         ok( ret, "GetMonitorInfo failed\n" );
406         SetRect( &rc, mi.rcMonitor.left-1, mi.rcMonitor.top-2, mi.rcMonitor.left+2, mi.rcMonitor.top );
407         monitor = pMonitorFromRect( &rc, MONITOR_DEFAULTTONULL );
408     }
409 
410     /* tests for cbSize in MONITORINFO */
411     monitor = pMonitorFromWindow( 0, MONITOR_DEFAULTTOPRIMARY );
412     for (i = 0; i < (sizeof(testdatami) / sizeof(testdatami[0])); i++)
413     {
414         memset( &mi, 0, sizeof(mi) );
415         mi.cbSize = testdatami[i].cbSize;
416         ret = pGetMonitorInfoA( monitor, &mi );
417         ok( ret == testdatami[i].ret, "GetMonitorInfo returned wrong value\n" );
418         if (ret)
419             ok( (mi.dwFlags & MONITORINFOF_PRIMARY), "MONITORINFOF_PRIMARY flag isn't set\n" );
420         else
421             ok( !(mi.dwFlags & MONITORINFOF_PRIMARY), "MONITORINFOF_PRIMARY flag is set\n" );
422 
423         memset( &miexw, 0, sizeof(miexw) );
424         miexw.cbSize = testdatamiexw[i].cbSize;
425         ret = pGetMonitorInfoW( monitor, (LPMONITORINFO)&miexw );
426         ok( ret == testdatamiexw[i].ret, "GetMonitorInfo returned wrong value\n" );
427         if (ret)
428             ok( (miexw.dwFlags & MONITORINFOF_PRIMARY), "MONITORINFOF_PRIMARY flag isn't set\n" );
429         else
430             ok( !(miexw.dwFlags & MONITORINFOF_PRIMARY), "MONITORINFOF_PRIMARY flag is set\n" );
431     }
432 
433     /* tests for cbSize in MONITORINFOEXA */
434     for (i = 0; i < (sizeof(testdatamiexa) / sizeof(testdatamiexa[0])); i++)
435     {
436         memset( &miexa, 0, sizeof(miexa) );
437         miexa.cbSize = testdatamiexa[i].cbSize;
438         ret = pGetMonitorInfoA( monitor, (LPMONITORINFO)&miexa );
439         ok( ret == testdatamiexa[i].ret, "GetMonitorInfo returned wrong value\n" );
440         if (ret)
441             ok( (miexa.dwFlags & MONITORINFOF_PRIMARY), "MONITORINFOF_PRIMARY flag isn't set\n" );
442         else
443             ok( !(miexa.dwFlags & MONITORINFOF_PRIMARY), "MONITORINFOF_PRIMARY flag is set\n" );
444     }
445 
446     /* tests for cbSize in MONITORINFOEXW */
447     for (i = 0; i < (sizeof(testdatamiexw) / sizeof(testdatamiexw[0])); i++)
448     {
449         memset( &miexw, 0, sizeof(miexw) );
450         miexw.cbSize = testdatamiexw[i].cbSize;
451         ret = pGetMonitorInfoW( monitor, (LPMONITORINFO)&miexw );
452         ok( ret == testdatamiexw[i].ret, "GetMonitorInfo returned wrong value\n" );
453         if (ret)
454             ok( (miexw.dwFlags & MONITORINFOF_PRIMARY), "MONITORINFOF_PRIMARY flag isn't set\n" );
455         else
456             ok( !(miexw.dwFlags & MONITORINFOF_PRIMARY), "MONITORINFOF_PRIMARY flag is set\n" );
457     }
458 
459     SetRect( &rc, rc.left+1, rc.top+1, rc.left+2, rc.top+2 );
460 
461     monitor = pMonitorFromRect( &rc, MONITOR_DEFAULTTONULL );
462     ok( monitor == NULL, "got %p\n", monitor );
463 
464     monitor = pMonitorFromRect( &rc, MONITOR_DEFAULTTOPRIMARY );
465     ok( monitor == primary, "got %p, should get primary %p\n", monitor, primary );
466 
467     monitor = pMonitorFromRect( &rc, MONITOR_DEFAULTTONEAREST );
468     ok( monitor == nearest, "got %p, should get nearest %p\n", monitor, nearest );
469 }
470 
471 static BOOL CALLBACK find_primary_mon(HMONITOR hmon, HDC hdc, LPRECT rc, LPARAM lp)
472 {
473     MONITORINFO mi;
474     BOOL ret;
475 
476     mi.cbSize = sizeof(mi);
477     ret = pGetMonitorInfoA(hmon, &mi);
478     ok(ret, "GetMonitorInfo failed\n");
479     if (mi.dwFlags & MONITORINFOF_PRIMARY)
480     {
481         *(HMONITOR *)lp = hmon;
482         return FALSE;
483     }
484     return TRUE;
485 }
486 
487 static void test_work_area(void)
488 {
489     HMONITOR hmon;
490     MONITORINFO mi;
491     RECT rc_work, rc_normal;
492     HWND hwnd;
493     WINDOWPLACEMENT wp;
494     BOOL ret;
495 
496     if (!pEnumDisplayMonitors || !pGetMonitorInfoA)
497     {
498         win_skip("EnumDisplayMonitors or GetMonitorInfoA are not available\n");
499         return;
500     }
501 
502     hmon = 0;
503     ret = pEnumDisplayMonitors(NULL, NULL, find_primary_mon, (LPARAM)&hmon);
504     ok(!ret && hmon != 0, "Failed to find primary monitor\n");
505 
506     mi.cbSize = sizeof(mi);
507     SetLastError(0xdeadbeef);
508     ret = pGetMonitorInfoA(hmon, &mi);
509     ok(ret, "GetMonitorInfo error %u\n", GetLastError());
510     ok(mi.dwFlags & MONITORINFOF_PRIMARY, "not a primary monitor\n");
511     trace("primary monitor %s\n", wine_dbgstr_rect(&mi.rcMonitor));
512 
513     SetLastError(0xdeadbeef);
514     ret = SystemParametersInfoA(SPI_GETWORKAREA, 0, &rc_work, 0);
515     ok(ret, "SystemParametersInfo error %u\n", GetLastError());
516     trace("work area %s\n", wine_dbgstr_rect(&rc_work));
517     ok(EqualRect(&rc_work, &mi.rcWork), "work area is different\n");
518 
519     hwnd = CreateWindowExA(0, "static", NULL, WS_OVERLAPPEDWINDOW|WS_VISIBLE,100,100,10,10,0,0,0,NULL);
520     ok(hwnd != 0, "CreateWindowEx failed\n");
521 
522     ret = GetWindowRect(hwnd, &rc_normal);
523     ok(ret, "GetWindowRect failed\n");
524     trace("normal %s\n", wine_dbgstr_rect(&rc_normal));
525 
526     wp.length = sizeof(wp);
527     ret = GetWindowPlacement(hwnd, &wp);
528     ok(ret, "GetWindowPlacement failed\n");
529     trace("min: %d,%d max %d,%d normal %s\n", wp.ptMinPosition.x, wp.ptMinPosition.y,
530           wp.ptMaxPosition.x, wp.ptMaxPosition.y, wine_dbgstr_rect(&wp.rcNormalPosition));
531     OffsetRect(&wp.rcNormalPosition, rc_work.left, rc_work.top);
532     todo_wine_if (mi.rcMonitor.left != mi.rcWork.left ||
533         mi.rcMonitor.top != mi.rcWork.top)  /* FIXME: remove once Wine is fixed */
534     {
535         ok(EqualRect(&rc_normal, &wp.rcNormalPosition), "normal pos is different\n");
536     }
537 
538     SetWindowLongA(hwnd, GWL_EXSTYLE, WS_EX_TOOLWINDOW);
539 
540     wp.length = sizeof(wp);
541     ret = GetWindowPlacement(hwnd, &wp);
542     ok(ret, "GetWindowPlacement failed\n");
543     trace("min: %d,%d max %d,%d normal %s\n", wp.ptMinPosition.x, wp.ptMinPosition.y,
544           wp.ptMaxPosition.x, wp.ptMaxPosition.y, wine_dbgstr_rect(&wp.rcNormalPosition));
545     ok(EqualRect(&rc_normal, &wp.rcNormalPosition), "normal pos is different\n");
546 
547     DestroyWindow(hwnd);
548 }
549 
550 static void test_display_config(void)
551 {
552     UINT32 paths, modes;
553     LONG ret;
554 
555     if (!pGetDisplayConfigBufferSizes)
556     {
557         win_skip("GetDisplayConfigBufferSizes is not supported\n");
558         return;
559     }
560 
561     ret = pGetDisplayConfigBufferSizes(QDC_ALL_PATHS, NULL, NULL);
562     ok(ret == ERROR_INVALID_PARAMETER, "got %d\n", ret);
563 
564     paths = 100;
565     ret = pGetDisplayConfigBufferSizes(QDC_ALL_PATHS, &paths, NULL);
566     ok(ret == ERROR_INVALID_PARAMETER, "got %d\n", ret);
567     ok(paths == 100, "got %u\n", paths);
568 
569     modes = 100;
570     ret = pGetDisplayConfigBufferSizes(QDC_ALL_PATHS, NULL, &modes);
571     ok(ret == ERROR_INVALID_PARAMETER, "got %d\n", ret);
572     ok(modes == 100, "got %u\n", modes);
573 
574     paths = modes = 0;
575     ret = pGetDisplayConfigBufferSizes(QDC_ALL_PATHS, &paths, &modes);
576     if (!ret)
577         ok(paths > 0 && modes > 0, "got %u, %u\n", paths, modes);
578     else
579         ok(ret == ERROR_NOT_SUPPORTED, "got %d\n", ret);
580 
581     /* Invalid flags, non-zero invalid flags validation is version (or driver?) dependent,
582        it's unreliable to use in tests. */
583     ret = pGetDisplayConfigBufferSizes(0, NULL, NULL);
584     ok(ret == ERROR_INVALID_PARAMETER, "got %d\n", ret);
585 
586     paths = 100;
587     ret = pGetDisplayConfigBufferSizes(0, &paths, NULL);
588     ok(ret == ERROR_INVALID_PARAMETER, "got %d\n", ret);
589     ok(paths == 100, "got %u\n", paths);
590 
591     modes = 100;
592     ret = pGetDisplayConfigBufferSizes(0, NULL, &modes);
593     ok(ret == ERROR_INVALID_PARAMETER, "got %d\n", ret);
594     ok(modes == 100, "got %u\n", modes);
595 
596     paths = modes = 100;
597     ret = pGetDisplayConfigBufferSizes(0, &paths, &modes);
598     ok(ret == ERROR_INVALID_PARAMETER || ret == ERROR_NOT_SUPPORTED, "got %d\n", ret);
599     ok(modes == 0 && paths == 0, "got %u, %u\n", modes, paths);
600 }
601 
602 START_TEST(monitor)
603 {
604     init_function_pointers();
605     test_enumdisplaydevices();
606     test_ChangeDisplaySettingsEx();
607     test_monitors();
608     test_work_area();
609     test_display_config();
610 }
611