dlls/user32/tests/monitor.c

   1 /*
   2  * Unit tests for monitor APIs
   3  *
   4  * Copyright 2005 Huw Davies
   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 "wine/test.h"
  22 #include "winbase.h"
  23 #include "wingdi.h"
  24 #include "winuser.h"
  25
  26 static HMODULE hdll;
  27 static BOOL (WINAPI *pEnumDisplayDevicesA)(LPCSTR,DWORD,LPDISPLAY_DEVICEA,DWORD);
  28 static BOOL (WINAPI *pEnumDisplayMonitors)(HDC,LPRECT,MONITORENUMPROC,LPARAM);
  29 static BOOL (WINAPI *pGetMonitorInfoA)(HMONITOR,LPMONITORINFO);
  30 static HMONITOR (WINAPI *pMonitorFromPoint)(POINT,DWORD);
  31 static HMONITOR (WINAPI *pMonitorFromWindow)(HWND,DWORD);
  32
  33 static void init_function_pointers(void)
  34 {
  35     hdll = GetModuleHandleA("user32.dll");
  36     pEnumDisplayDevicesA = (void*)GetProcAddress(hdll, "EnumDisplayDevicesA");
  37     pEnumDisplayMonitors = (void*)GetProcAddress(hdll, "EnumDisplayMonitors");
  38     pGetMonitorInfoA = (void*)GetProcAddress(hdll, "GetMonitorInfoA");
  39     pMonitorFromPoint = (void*)GetProcAddress(hdll, "MonitorFromPoint");
  40     pMonitorFromWindow = (void*)GetProcAddress(hdll, "MonitorFromWindow");
  41 }
  42
  43 static BOOL CALLBACK monitor_enum_proc(HMONITOR hmon, HDC hdc, LPRECT lprc,
  44                                        LPARAM lparam)
  45 {
  46     MONITORINFOEXA mi;
  47     char *primary = (char *)lparam;
  48
  49     mi.cbSize = sizeof(mi);
  50
  51     ok(pGetMonitorInfoA(hmon, (MONITORINFO*)&mi), "GetMonitorInfo failed\n");
  52     if(mi.dwFlags == MONITORINFOF_PRIMARY)
  53         strcpy(primary, mi.szDevice);
  54
  55     return TRUE;
  56 }
  57
  58 static void test_enumdisplaydevices(void)
  59 {
  60     DISPLAY_DEVICEA dd;
  61     char primary_device_name[32];
  62     char primary_monitor_device_name[32];
  63     DWORD primary_num = -1, num = 0;
  64
  65     dd.cb = sizeof(dd);
  66     if(pEnumDisplayDevicesA == NULL) return;
  67     while(1)
  68     {
  69         BOOL ret;
  70         HDC dc;
  71         ret = pEnumDisplayDevicesA(NULL, num, &dd, 0);
  72         ok(ret || num != 0, "EnumDisplayDevices fails with num == 0\n");
  73         if(!ret) break;
  74         if(dd.StateFlags & DISPLAY_DEVICE_PRIMARY_DEVICE)
  75         {
  76             strcpy(primary_device_name, dd.DeviceName);
  77             primary_num = num;
  78         }
  79         if(dd.StateFlags & DISPLAY_DEVICE_ATTACHED_TO_DESKTOP)
  80         {
  81             /* test creating DC */
  82             dc = CreateDCA(dd.DeviceName, NULL, NULL, NULL);
  83             ok(dc != NULL, "Failed to CreateDC(\"%s\") err=%d\n", dd.DeviceName, GetLastError());
  84             DeleteDC(dc);
  85         }
  86         num++;
  87     }
  88     ok(primary_num != -1, "Didn't get the primary device\n");
  89
  90     if(pEnumDisplayMonitors && pGetMonitorInfoA) {
  91         ok(pEnumDisplayMonitors(NULL, NULL, monitor_enum_proc, (LPARAM)primary_monitor_device_name),
  92            "EnumDisplayMonitors failed\n");
  93
  94         ok(!strcmp(primary_monitor_device_name, primary_device_name),
  95            "monitor device name %s, device name %s\n", primary_monitor_device_name,
  96            primary_device_name);
  97     }
  98 }
  99
 100 struct vid_mode
 101 {
 102     DWORD w, h, bpp, freq, fields;
 103     LONG success;
 104 };
 105
 106 static struct vid_mode vid_modes_test[] = {
 107     {640, 480, 0, 0, DM_PELSWIDTH | DM_PELSHEIGHT | DM_BITSPERPEL | DM_DISPLAYFREQUENCY, 1},
 108     {640, 480, 0, 0, DM_PELSWIDTH | DM_PELSHEIGHT |                 DM_DISPLAYFREQUENCY, 1},
 109     {640, 480, 0, 0, DM_PELSWIDTH | DM_PELSHEIGHT | DM_BITSPERPEL                      , 1},
 110     {640, 480, 0, 0, DM_PELSWIDTH | DM_PELSHEIGHT                                      , 1},
 111     {640, 480, 0, 0,                                DM_BITSPERPEL                      , 1},
 112     {640, 480, 0, 0,                                                DM_DISPLAYFREQUENCY, 1},
 113
 114     {0, 0, 0, 0, DM_PELSWIDTH, 1},
 115     {0, 0, 0, 0, DM_PELSHEIGHT, 1},
 116
 117     {640, 480, 0, 0, DM_PELSWIDTH, 0},
 118     {640, 480, 0, 0, DM_PELSHEIGHT, 0},
 119     {  0, 480, 0, 0, DM_PELSWIDTH | DM_PELSHEIGHT, 0},
 120     {640,   0, 0, 0, DM_PELSWIDTH | DM_PELSHEIGHT, 0},
 121
 122     {0, 0, 0, 0, DM_DISPLAYFREQUENCY, 0},
 123 };
 124 #define vid_modes_cnt (sizeof(vid_modes_test) / sizeof(vid_modes_test[0]))
 125
 126 static void test_ChangeDisplaySettingsEx(void)
 127 {
 128     DEVMODE dm;
 129     LONG res;
 130     int i;
 131
 132     memset(&dm, 0, sizeof(dm));
 133     dm.dmSize = sizeof(dm);
 134
 135     for (i = 0; i < vid_modes_cnt; i++)
 136     {
 137         dm.dmPelsWidth        = vid_modes_test[i].w;
 138         dm.dmPelsHeight       = vid_modes_test[i].h;
 139         dm.dmBitsPerPel       = vid_modes_test[i].bpp;
 140         dm.dmDisplayFrequency = vid_modes_test[i].freq;
 141         dm.dmFields           = vid_modes_test[i].fields;
 142         res = ChangeDisplaySettingsEx(NULL, &dm, NULL, CDS_FULLSCREEN, NULL);
 143         ok(vid_modes_test[i].success ?
 144            (res == DISP_CHANGE_SUCCESSFUL) :
 145            (res == DISP_CHANGE_BADMODE || res == DISP_CHANGE_BADPARAM),
 146            "Unexpected ChangeDisplaySettingsEx() return code for resolution[%d]: %d\n", i, res);
 147
 148         if (res == DISP_CHANGE_SUCCESSFUL)
 149         {
 150             RECT r, r1, virt;
 151
 152             SetRect(&virt, 0, 0, GetSystemMetrics(SM_CXVIRTUALSCREEN), GetSystemMetrics(SM_CYVIRTUALSCREEN));
 153             OffsetRect(&virt, GetSystemMetrics(SM_XVIRTUALSCREEN), GetSystemMetrics(SM_YVIRTUALSCREEN));
 154
 155             /* Resolution change resets clip rect */
 156             ok(GetClipCursor(&r), "GetClipCursor() failed\n");
 157             ok(EqualRect(&r, &virt), "Invalid clip rect: (%d %d) x (%d %d)\n", r.left, r.top, r.right, r.bottom);
 158
 159             ok(ClipCursor(NULL), "ClipCursor() failed\n");
 160             ok(GetClipCursor(&r), "GetClipCursor() failed\n");
 161             ok(EqualRect(&r, &virt), "Invalid clip rect: (%d %d) x (%d %d)\n", r.left, r.top, r.right, r.bottom);
 162
 163             /* This should always work. Primary monitor is at (0,0) */
 164             SetRect(&r1, 10, 10, 20, 20);
 165             ok(ClipCursor(&r1), "ClipCursor() failed\n");
 166             ok(GetClipCursor(&r), "GetClipCursor() failed\n");
 167             ok(EqualRect(&r, &r1), "Invalid clip rect: (%d %d) x (%d %d)\n", r.left, r.top, r.right, r.bottom);
 168
 169             SetRect(&r1, virt.left - 10, virt.top - 10, virt.right + 20, virt.bottom + 20);
 170             ok(ClipCursor(&r1), "ClipCursor() failed\n");
 171             ok(GetClipCursor(&r), "GetClipCursor() failed\n");
 172             ok(EqualRect(&r, &virt), "Invalid clip rect: (%d %d) x (%d %d)\n", r.left, r.top, r.right, r.bottom);
 173         }
 174     }
 175     res = ChangeDisplaySettingsEx(NULL, NULL, NULL, CDS_RESET, NULL);
 176     ok(res == DISP_CHANGE_SUCCESSFUL, "Failed to reset default resolution: %d\n", res);
 177 }
 178
 179 static void test_monitors(void)
 180 {
 181     HMONITOR monitor, primary;
 182     POINT pt;
 183
 184     pt.x = pt.y = 0;
 185     primary = pMonitorFromPoint( pt, MONITOR_DEFAULTTOPRIMARY );
 186     ok( primary != 0, "couldn't get primary monitor\n" );
 187
 188     monitor = pMonitorFromWindow( 0, MONITOR_DEFAULTTONULL );
 189     ok( !monitor, "got %p, should not get a monitor for an invalid window\n", monitor );
 190     monitor = pMonitorFromWindow( 0, MONITOR_DEFAULTTOPRIMARY );
 191     ok( monitor == primary, "got %p, should get primary %p for MONITOR_DEFAULTTOPRIMARY\n", monitor, primary );
 192     monitor = pMonitorFromWindow( 0, MONITOR_DEFAULTTONEAREST );
 193     ok( monitor == primary, "got %p, should get primary %p for MONITOR_DEFAULTTONEAREST\n", monitor, primary );
 194 }
 195
 196
 197 START_TEST(monitor)
 198 {
 199     init_function_pointers();
 200     test_enumdisplaydevices();
 201     if (winetest_interactive)
 202         test_ChangeDisplaySettingsEx();
 203     if (pMonitorFromPoint && pMonitorFromWindow)
 204         test_monitors();
 205 }