rostests/apitests/w32knapi/ntgdi/NtGdiSaveDC.c

   1
   2 INT
   3 Test_NtGdiSaveDC(PTESTINFO pti)
   4 {
   5     HDC hdc;
   6     HWND hwnd;
   7
   8     /* Test 0 hdc */
   9     TEST(NtGdiSaveDC(0) == 0);
  10
  11     /* Test info dc */
  12     hdc = CreateICW(L"DISPLAY",NULL,NULL,NULL);
  13     TEST(hdc);
  14     TEST(NtGdiSaveDC(hdc) == 1);
  15     TEST(NtGdiSaveDC(hdc) == 2);
  16     DeleteDC(hdc);
  17
  18     /* Test display dc */
  19     hdc = GetDC(0);
  20     TEST(hdc);
  21     TEST(NtGdiSaveDC(hdc) == 1);
  22     TEST(NtGdiSaveDC(hdc) == 2);
  23     ReleaseDC(0, hdc);
  24
  25     /* Test a mem DC */
  26     hdc = CreateCompatibleDC(0);
  27     TEST(hdc);
  28     TEST(NtGdiSaveDC(hdc) == 1);
  29     TEST(NtGdiSaveDC(hdc) == 2);
  30     DeleteDC(hdc);
  31
  32         /* Create a window */
  33         hwnd = CreateWindowW(L"BUTTON", L"TestWindow", WS_OVERLAPPEDWINDOW | WS_VISIBLE,
  34                             10, 10, 100, 100,
  35                             NULL, NULL, g_hInstance, 0);
  36     hdc = GetDC(hwnd);
  37     TEST(hdc);
  38     TEST(NtGdiSaveDC(hdc) == 1);
  39     NtGdiRestoreDC(hdc, 1);
  40     ReleaseDC(hwnd, hdc);
  41     DestroyWindow(hwnd);
  42
  43     return APISTATUS_NORMAL;
  44 }
  45