rostests/apitests/win32nt/ntuser/NtUserEnumDisplayMonitors.c

   1 /*
   2  * PROJECT:         ReactOS api tests
   3  * LICENSE:         GPL - See COPYING in the top level directory
   4  * PURPOSE:         Test for NtUserEnumDisplayMonitors
   5  * PROGRAMMERS:
   6  */
   7
   8 #include <win32nt.h>
   9
  10 ULONG gMonitorCount = 0;
  11 HDC ghdcMonitor = 0;
  12 RECT grcMonitor = {0};
  13
  14 BOOL
  15 NTAPI
  16 NtUserEnumDisplayMonitors1(
  17     HDC hDC,
  18     LPCRECT lprcClip,
  19     MONITORENUMPROC lpfnEnum,
  20     LPARAM dwData)
  21 {
  22     return (INT)Syscall(L"NtUserEnumDisplayMonitors", 4, &hDC);
  23 }
  24
  25 BOOL CALLBACK
  26 MonitorEnumProc(
  27     HMONITOR hMonitor,
  28     HDC hdcMonitor,
  29     LPRECT lprcMonitor,
  30     LPARAM dwData)
  31 {
  32     gMonitorCount++;
  33     if (gMonitorCount == 1)
  34     {
  35         ghdcMonitor = hdcMonitor;
  36         grcMonitor = *lprcMonitor;
  37     }
  38     return TRUE;
  39 }
  40
  41 START_TEST(NtUserEnumDisplayMonitors)
  42 {
  43     BOOL ret;
  44
  45     // WILL crash!
  46 //      TEST(NtUserEnumDisplayMonitors1(NULL, NULL, NULL, 0) == 0);
  47
  48     ret = NtUserEnumDisplayMonitors(0, NULL, MonitorEnumProc, 0);
  49     TEST(ret == TRUE);
  50     TEST(gMonitorCount > 0);
  51     TEST(ghdcMonitor == 0);
  52     TEST(grcMonitor.left == 0);
  53     TEST(grcMonitor.right > 0);
  54     TEST(grcMonitor.top == 0);
  55     TEST(grcMonitor.bottom > 0);
  56
  57 }