CreateCompatibleDC.c File Reference

#include "precomp.h"

Include dependency graph for CreateCompatibleDC.c:

Go to the source code of this file.

Functions
void	Test_CreateCompatibleDC ()
	START_TEST (CreateCompatibleDC)

Function Documentation

START_TEST()

START_TEST

(

CreateCompatibleDC

)

Definition at line 66 of file CreateCompatibleDC.c.

{
    Test_CreateCompatibleDC();
}

Test_CreateCompatibleDC()

void Test_CreateCompatibleDC

(

)

Definition at line 10 of file CreateCompatibleDC.c.

{
    HDC hdcScreen, hOldDC, hdc, hdc2;
    HPEN hOldPen;
    COLORREF color;

    /* Get screen DC */
    hdcScreen = GetDC(NULL);

    /* Test NULL DC handle */
    SetLastError(ERROR_SUCCESS);
    hdc = CreateCompatibleDC(NULL);
    ok(hdc != NULL, "CreateCompatibleDC(NULL) failed\n");
    ok(GetLastError() == ERROR_SUCCESS, "GetLastError() == %ld\n", GetLastError());
    if(hdc) DeleteDC(hdc);

    /* Test invalid DC handle */
    SetLastError(ERROR_SUCCESS);
    hdc = CreateCompatibleDC((HDC)0x123456);
    ok(hdc == NULL, "Expected NULL, got %p\n", hdc);
    ok(GetLastError() == ERROR_SUCCESS, "GetLastError() == %ld\n", GetLastError());
    if(hdc) DeleteDC(hdc);

    hdc = CreateCompatibleDC(hdcScreen);
    ok(hdc != NULL, "CreateCompatibleDC failed\n");

    // Test if first selected pen is BLACK_PEN (? or same as screen DC's pen?)
    hOldPen = SelectObject(hdc, GetStockObject(DC_PEN));
    ok (hOldPen == GetStockObject(BLACK_PEN), "hOldPen == %p\n", hOldPen);
    hOldPen = SelectObject(hdc, GetStockObject(BLACK_PEN));
    ok (hOldPen == GetStockObject(DC_PEN), "hOldPen == %p\n", hOldPen);

    /* Test for the starting Color == RGB(0,0,0) */
    color = SetDCPenColor(hdc, RGB(1,2,3));
    ok(color == RGB(0,0,0), "color == %lx\n", color);

    /* Check for reuse counter */
    hOldDC = hdc;
    DeleteDC(hdc);
    hdc = CreateCompatibleDC(hdcScreen);
    hdc2 = CreateCompatibleDC(hOldDC);
    ok(hdc2 == NULL, "Expected NULL, got %p\n", hdc);
    if (hdc2 != NULL) DeleteDC(hdc2);

    /* Check map mode */
    hdc = CreateCompatibleDC(hdcScreen);
    SetMapMode(hdc, MM_ISOTROPIC);
    hdc2 = CreateCompatibleDC(hdc);
    ok(GetMapMode(hdc2) == MM_TEXT, "GetMapMode(hdc2)==%d\n", GetMapMode(hdc2));

    /* cleanup */
    DeleteDC(hdc);

    ReleaseDC(NULL, hdcScreen);
}

Referenced by START_TEST().