rostests/apitests/gdi32/CreateCompatibleDC.c

   1 /*
   2  * PROJECT:         ReactOS api tests
   3  * LICENSE:         GPL - See COPYING in the top level directory
   4  * PURPOSE:         Test for CreateCompatibleDC
   5  * PROGRAMMERS:     Timo Kreuzer
   6  */
   7
   8 #include <stdio.h>
   9 #include <wine/test.h>
  10 #include <windows.h>
  11
  12 void Test_CreateCompatibleDC()
  13 {
  14         HDC hdcScreen, hOldDC, hdc, hdc2;
  15         HPEN hOldPen;
  16         COLORREF color;
  17
  18         /* Get screen DC */
  19         hdcScreen = GetDC(NULL);
  20
  21         /* Test NULL DC handle */
  22         SetLastError(ERROR_SUCCESS);
  23         hdc = CreateCompatibleDC(NULL);
  24         ok(hdc != NULL, "CreateCompatibleDC(NULL) failed\n");
  25         ok(GetLastError() == ERROR_SUCCESS, "GetLastError() == %ld\n", GetLastError());
  26         if(hdc) DeleteDC(hdc);
  27
  28         /* Test invalid DC handle */
  29         SetLastError(ERROR_SUCCESS);
  30         hdc = CreateCompatibleDC((HDC)0x123456);
  31         ok(hdc == NULL, "Expected NULL, got %p\n", hdc);
  32         ok(GetLastError() == ERROR_SUCCESS, "GetLastError() == %ld\n", GetLastError());
  33         if(hdc) DeleteDC(hdc);
  34
  35         hdc = CreateCompatibleDC(hdcScreen);
  36         ok(hdc != NULL, "CreateCompatibleDC failed\n");
  37
  38         // Test if first selected pen is BLACK_PEN (? or same as screen DC's pen?)
  39         hOldPen = SelectObject(hdc, GetStockObject(DC_PEN));
  40         ok (hOldPen == GetStockObject(BLACK_PEN), "hOldPen == %p\n", hOldPen);
  41         hOldPen = SelectObject(hdc, GetStockObject(BLACK_PEN));
  42         ok (hOldPen == GetStockObject(DC_PEN), "hOldPen == %p\n", hOldPen);
  43
  44         /* Test for the starting Color == RGB(0,0,0) */
  45         color = SetDCPenColor(hdc, RGB(1,2,3));
  46         ok(color == RGB(0,0,0), "color == %lx\n", color);
  47
  48         /* Check for reuse counter */
  49         hOldDC = hdc;
  50         DeleteDC(hdc);
  51         hdc = CreateCompatibleDC(hdcScreen);
  52         hdc2 = CreateCompatibleDC(hOldDC);
  53         ok(hdc2 == NULL, "Expected NULL, got %p\n", hdc);
  54         if (hdc2 != NULL) DeleteDC(hdc2);
  55
  56     /* Check map mode */
  57         hdc = CreateCompatibleDC(hdcScreen);
  58         SetMapMode(hdc, MM_ISOTROPIC);
  59         hdc2 = CreateCompatibleDC(hdc);
  60     ok(GetMapMode(hdc2) == MM_TEXT, "GetMapMode(hdc2)==%d\n", GetMapMode(hdc2));
  61
  62         /* cleanup */
  63         DeleteDC(hdc);
  64
  65         ReleaseDC(NULL, hdcScreen);
  66 }
  67
  68 START_TEST(CreateCompatibleDC)
  69 {
  70     Test_CreateCompatibleDC();
  71 }
  72