winemac.drv: Zero initialize DEVMODE before passing it to EnumDisplaySettings().

EnumDisplaySettings() on Wine does not write beyond the end of DEVMODE because it doesn't use dmDriverExtra currently, but this implementation detail should not be relied on. Signed-off-by: Zhiyi Zhang <zzhang@codeweavers.com> Signed-off-by: Ken Thomases <ken@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

winemac.drv: Zero initialize DEVMODE before passing it to EnumDisplaySettings().
6185252b · Zhiyi Zhang · Alexandre Julliard · 440fab38 · 6185252b
Commit 6185252b authored Aug 11, 2020 by Zhiyi Zhang Committed by Alexandre Julliard Aug 11, 2020
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display.c dlls/winemac.drv/display.c +1 -0

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--- a/dlls/winemac.drv/display.c
+++ b/dlls/winemac.drv/display.c
@@ -847,6 +847,7 @@ LONG CDECL macdrv_ChangeDisplaySettingsEx(LPCWSTR devname, LPDEVMODEW devmode,

    if (!devname && !devmode)
    {
+        memset(&default_mode, 0, sizeof(default_mode));
        default_mode.dmSize = sizeof(default_mode);
        if (!EnumDisplaySettingsExW(primary_adapter, ENUM_REGISTRY_SETTINGS, &default_mode, 0))
        {