ole32: Deal with WM_RENDERFORMAT if the clipboard is empty.

Signed-off-by: Zhipeng Zhao <zhaozhipeng@uniontech.com> Signed-off-by: Huw Davies <huw@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

ole32: Deal with WM_RENDERFORMAT if the clipboard is empty.
065b56e4 · Zhipeng Zhao · Alexandre Julliard · a18bc50f · 065b56e4
Commit 065b56e4 authored Jun 09, 2020 by Zhipeng Zhao Committed by Alexandre Julliard Jun 09, 2020
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clipboard.c dlls/ole32/clipboard.c +2 -0

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--- a/dlls/ole32/clipboard.c
+++ b/dlls/ole32/clipboard.c
@@ -2066,6 +2066,8 @@ static LRESULT CALLBACK clipbrd_wndproc(HWND hwnd, UINT message, WPARAM wparam, 
        ole_priv_data_entry *entry;

        TRACE("(): WM_RENDERFORMAT(cfFormat=%x)\n", cf);
+
+        if (!clipbrd || !clipbrd->cached_enum) break;
        entry = find_format_in_list(clipbrd->cached_enum->entries, clipbrd->cached_enum->count, cf);

        if(entry)