[PATCH 1/3] gdi32/tests: Test GetDeviceCaps() for DCs on multiple monitor systems.

[Huw Davies]

On Wed, Jan 20, 2021 at 04:39:48PM +0800, Zhiyi Zhang wrote:
> Signed-off-by: Zhiyi Zhang <zzhang at codeweavers.com>
> ---
>  dlls/gdi32/tests/dc.c | 220 ++++++++++++++++++++++++++++++++++++++++++
>  1 file changed, 220 insertions(+)
> 
> diff --git a/dlls/gdi32/tests/dc.c b/dlls/gdi32/tests/dc.c
> index 04703288302..aa6917d432d 100644
> --- a/dlls/gdi32/tests/dc.c
> +++ b/dlls/gdi32/tests/dc.c
> @@ -1672,6 +1672,225 @@ static void test_clip_box(void)

> +    /* Test GetDeviceCaps() values after mode changes */
> +    memset(&dm2, 0, sizeof(dm2));
> +    dm2.dmSize = sizeof(dm2);
> +    for (mode_idx = 0; EnumDisplaySettingsA(NULL, mode_idx, &dm2); ++mode_idx)
> +    {
> +        if (dm2.dmPelsWidth != dm.dmPelsWidth && dm2.dmPelsHeight != dm.dmPelsHeight)
> +            break;
> +    }
> +    ok(dm2.dmPelsWidth && dm2.dmPelsWidth != dm.dmPelsWidth && dm2.dmPelsHeight != dm.dmPelsHeight,
> +       "Failed to find a different resolution.\n");
> +
> +    res = ChangeDisplaySettingsExA(NULL, &dm2, NULL, CDS_RESET, NULL);
> +    ok(res == DISP_CHANGE_SUCCESSFUL || broken(res == DISP_CHANGE_FAILED), /* Win8 TestBots */
> +       "ChangeDisplaySettingsExA returned unexpected %d.\n", res);

How important are the tests with a different mode?  It would be
nice not to have yet another mode change.

Huw.