reactos/rostests/apitests/user32/EnumDisplaySettings.c

#include <apitest.h>

#include <wingdi.h>
#include <winuser.h>

#define SIZEOF_DEVMODEW_300_W 188
#define SIZEOF_DEVMODEW_400_W 212
#define SIZEOF_DEVMODEW_500_W 220

#define SIZEOF_DEVMODEW_300_A 124
#define SIZEOF_DEVMODEW_400_A 148
#define SIZEOF_DEVMODEW_500_A 156

START_TEST(EnumDisplaySettings)
{
    DEVMODEW dmW;
    DEVMODEA dmA;
    HDC icDisplay;

    /* TODO: test with a printer driver */

    icDisplay = CreateICW(L"DISPLAY", NULL, NULL, NULL);
    ok(icDisplay != NULL, "\n");

    dmW.dmDriverExtra = 0x7777;

    /* Try ridiculous size */
    dmW.dmSize = 0x8888;
    ok(EnumDisplaySettingsW(NULL, ENUM_CURRENT_SETTINGS, &dmW), "\n");
    ok(dmW.dmBitsPerPel == GetDeviceCaps(icDisplay, BITSPIXEL), "%lu, should be %d.\n", dmW.dmBitsPerPel, GetDeviceCaps(icDisplay, BITSPIXEL));
    ok(dmW.dmSize == SIZEOF_DEVMODEW_300_W, "%d\n", dmW.dmSize);
    ok(dmW.dmDriverExtra == 0, "%d\n", dmW.dmDriverExtra);

    /* Try a tiny size */
    dmW.dmSize = 4;
    ok(EnumDisplaySettingsW(NULL, ENUM_CURRENT_SETTINGS, &dmW), "\n");
    ok(dmW.dmBitsPerPel == GetDeviceCaps(icDisplay, BITSPIXEL), "%lu, should be %d.\n", dmW.dmBitsPerPel, GetDeviceCaps(icDisplay, BITSPIXEL));
    ok(dmW.dmSize == SIZEOF_DEVMODEW_300_W, "%d\n", dmW.dmSize);

    /* Something in between */
    dmW.dmSize = (SIZEOF_DEVMODEW_300_W + SIZEOF_DEVMODEW_400_W) / 2 ;
    ok(EnumDisplaySettingsW(NULL, ENUM_CURRENT_SETTINGS, &dmW), "\n");
    ok(dmW.dmBitsPerPel == GetDeviceCaps(icDisplay, BITSPIXEL), "%lu, should be %d.\n", dmW.dmBitsPerPel, GetDeviceCaps(icDisplay, BITSPIXEL));
    ok(dmW.dmSize == SIZEOF_DEVMODEW_300_W, "%d\n", dmW.dmSize);

    /* WINVER < 0x0400 */
    dmW.dmSize = SIZEOF_DEVMODEW_300_W;
    ok(EnumDisplaySettingsW(NULL, ENUM_CURRENT_SETTINGS, &dmW), "\n");
    ok(dmW.dmBitsPerPel == GetDeviceCaps(icDisplay, BITSPIXEL), "%lu, should be %d.\n", dmW.dmBitsPerPel, GetDeviceCaps(icDisplay, BITSPIXEL));
    ok(dmW.dmSize == SIZEOF_DEVMODEW_300_W, "%d\n", dmW.dmSize);

    /* WINVER < 0x0500 */
    dmW.dmSize = SIZEOF_DEVMODEW_400_W;
    ok(EnumDisplaySettingsW(NULL, ENUM_CURRENT_SETTINGS, &dmW), "\n");
    ok(dmW.dmBitsPerPel == GetDeviceCaps(icDisplay, BITSPIXEL), "%lu, should be %d.\n", dmW.dmBitsPerPel, GetDeviceCaps(icDisplay, BITSPIXEL));
    ok(dmW.dmSize == SIZEOF_DEVMODEW_300_W, "%d\n", dmW.dmSize);

    /* "Modern" windows */
    dmW.dmSize = SIZEOF_DEVMODEW_500_W;
    ok(EnumDisplaySettingsW(NULL, ENUM_CURRENT_SETTINGS, &dmW), "\n");
    ok(dmW.dmBitsPerPel == GetDeviceCaps(icDisplay, BITSPIXEL), "%lu, should be %d.\n", dmW.dmBitsPerPel, GetDeviceCaps(icDisplay, BITSPIXEL));
    ok(dmW.dmSize == SIZEOF_DEVMODEW_300_W, "%d\n", dmW.dmSize);

    DeleteDC(icDisplay);

    icDisplay = CreateICA("DISPLAY", NULL, NULL, NULL);
    ok(icDisplay != NULL, "\n");

    dmA.dmDriverExtra = 0x7777;

    /* Try ridiculous size */
    dmA.dmSize = 0x8888;
    ok(EnumDisplaySettingsA(NULL, ENUM_CURRENT_SETTINGS, &dmA), "\n");
    ok(dmA.dmBitsPerPel == GetDeviceCaps(icDisplay, BITSPIXEL), "%lu, should be %d.\n", dmA.dmBitsPerPel, GetDeviceCaps(icDisplay, BITSPIXEL));
    ok(dmA.dmSize == SIZEOF_DEVMODEW_300_A, "%d\n", dmA.dmSize);
    ok(dmA.dmDriverExtra == 0, "%d\n", dmA.dmDriverExtra);

    /* Try a tiny size */
    dmA.dmSize = 4;
    ok(EnumDisplaySettingsA(NULL, ENUM_CURRENT_SETTINGS, &dmA), "\n");
    ok(dmA.dmBitsPerPel == GetDeviceCaps(icDisplay, BITSPIXEL), "%lu, should be %d.\n", dmA.dmBitsPerPel, GetDeviceCaps(icDisplay, BITSPIXEL));
    ok(dmA.dmSize == SIZEOF_DEVMODEW_300_A, "%d\n", dmA.dmSize);

    /* Something in between */
    dmA.dmSize = (SIZEOF_DEVMODEW_300_A + SIZEOF_DEVMODEW_400_A) / 2 ;
    ok(EnumDisplaySettingsA(NULL, ENUM_CURRENT_SETTINGS, &dmA), "\n");
    ok(dmA.dmBitsPerPel == GetDeviceCaps(icDisplay, BITSPIXEL), "%lu, should be %d.\n", dmA.dmBitsPerPel, GetDeviceCaps(icDisplay, BITSPIXEL));
    ok(dmA.dmSize == SIZEOF_DEVMODEW_300_A, "%d\n", dmA.dmSize);

    /* WINVER < 0x0400 */
    dmA.dmSize = SIZEOF_DEVMODEW_300_A;
    ok(EnumDisplaySettingsA(NULL, ENUM_CURRENT_SETTINGS, &dmA), "\n");
    ok(dmA.dmBitsPerPel == GetDeviceCaps(icDisplay, BITSPIXEL), "%lu, should be %d.\n", dmA.dmBitsPerPel, GetDeviceCaps(icDisplay, BITSPIXEL));
    ok(dmA.dmSize == SIZEOF_DEVMODEW_300_A, "%d\n", dmA.dmSize);

    /* WINVER < 0x0500 */
    dmA.dmSize = SIZEOF_DEVMODEW_400_A;
    ok(EnumDisplaySettingsA(NULL, ENUM_CURRENT_SETTINGS, &dmA), "\n");
    ok(dmA.dmBitsPerPel == GetDeviceCaps(icDisplay, BITSPIXEL), "%lu, should be %d.\n", dmA.dmBitsPerPel, GetDeviceCaps(icDisplay, BITSPIXEL));
    ok(dmA.dmSize == SIZEOF_DEVMODEW_300_A, "%d\n", dmA.dmSize);

    /* "Modern" windows */
    dmA.dmSize = SIZEOF_DEVMODEW_500_A;
    ok(EnumDisplaySettingsA(NULL, ENUM_CURRENT_SETTINGS, &dmA), "\n");
    ok(dmA.dmBitsPerPel == GetDeviceCaps(icDisplay, BITSPIXEL), "%lu, should be %d.\n", dmA.dmBitsPerPel, GetDeviceCaps(icDisplay, BITSPIXEL));
    ok(dmA.dmSize == SIZEOF_DEVMODEW_300_A, "%d\n", dmA.dmSize);

    DeleteDC(icDisplay);
}