rostests/apitests/user32api/tests/ScrollWindowEx.c

   1 #include "../user32api.h"
   2
   3 INT
   4 Test_ScrollWindowEx(PTESTINFO pti)
   5 {
   6         HWND hWnd;
   7         HRGN hrgn;
   8         int Result;
   9
  10         /* Create a window */
  11         hWnd = CreateWindowW(L"BUTTON", L"TestWindow", WS_OVERLAPPEDWINDOW | WS_VISIBLE,
  12                             CW_USEDEFAULT, CW_USEDEFAULT, 100, 100,
  13                             NULL, NULL, g_hInstance, 0);
  14         UpdateWindow(hWnd);
  15
  16         /* Assert that no update region is there */
  17         hrgn = CreateRectRgn(0,0,0,0);
  18         ASSERT(GetUpdateRgn(hWnd, hrgn, FALSE) == NULLREGION);
  19
  20         Result = ScrollWindowEx(hWnd, 20, 0, NULL, NULL, NULL, NULL, 0);
  21         TEST(Result == SIMPLEREGION);
  22         TEST(GetUpdateRgn(hWnd, hrgn, FALSE) == NULLREGION);
  23
  24         Result = ScrollWindowEx(hWnd, 20, 0, NULL, NULL, NULL, NULL, SW_INVALIDATE);
  25         TEST(Result == SIMPLEREGION);
  26         TEST(GetUpdateRgn(hWnd, hrgn, FALSE) == SIMPLEREGION);
  27         UpdateWindow(hWnd);
  28
  29         // test invalid update region
  30         DeleteObject(hrgn);
  31         Result = ScrollWindowEx(hWnd, 20, 0, NULL, NULL, hrgn, NULL, SW_INVALIDATE);
  32         TEST(Result == ERROR);
  33         hrgn = CreateRectRgn(0,0,0,0);
  34         UpdateWindow(hWnd);
  35
  36         // Test invalid updaterect pointer
  37         Result = ScrollWindowEx(hWnd, 20, 0, NULL, NULL, NULL, (LPRECT)1, SW_INVALIDATE);
  38         TEST(Result == ERROR);
  39         TEST(GetUpdateRgn(hWnd, hrgn, FALSE) == SIMPLEREGION);
  40
  41 // test for alignment of rects
  42
  43         DeleteObject(hrgn);
  44     DestroyWindow(hWnd);
  45
  46         return APISTATUS_NORMAL;
  47 }