explorer: 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: Alexandre Julliard <julliard@winehq.org>

explorer: Zero initialize DEVMODE before passing it to EnumDisplaySettings().
c9d2b629 · Zhiyi Zhang · Alexandre Julliard · 6185252b · c9d2b629
Commit c9d2b629 authored Aug 11, 2020 by Zhiyi Zhang Committed by Alexandre Julliard Aug 11, 2020
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desktop.c programs/explorer/desktop.c +1 -0

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--- a/programs/explorer/desktop.c
+++ b/programs/explorer/desktop.c
@@ -889,6 +889,7 @@ static void initialize_display_settings(void)

    /* Store current display mode in the registry */
    ddW.cb = sizeof(ddW);
+    memset(&dmW, 0, sizeof(dmW));
    dmW.dmSize = sizeof(dmW);
    while (EnumDisplayDevicesW( NULL, i++, &ddW, 0 ))
    {