riched20: Handle invalid HFONT values passed to WM_SETFONT.

Signed-off-by: Nikolay Sivov <nsivov@codeweavers.com>

riched20: Handle invalid HFONT values passed to WM_SETFONT.
20f4a9ff · Nikolay Sivov · Alexandre Julliard · 30c5f3bd · 20f4a9ff
Commit 20f4a9ff authored Oct 05, 2015 by Nikolay Sivov Committed by Alexandre Julliard Oct 05, 2015
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editor.c dlls/riched20/editor.c +4 -1

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--- a/dlls/riched20/editor.c
+++ b/dlls/riched20/editor.c
@@ -3767,7 +3767,10 @@ LRESULT ME_HandleMessage(ME_TextEditor *editor, UINT msg, WPARAM wParam,

    if (!wParam)
      wParam = (WPARAM)GetStockObject(SYSTEM_FONT);
-    GetObjectW((HGDIOBJ)wParam, sizeof(LOGFONTW), &lf);
+
+    if (!GetObjectW((HGDIOBJ)wParam, sizeof(LOGFONTW), &lf))
+      return 0;
+
    hDC = ITextHost_TxGetDC(editor->texthost);
    ME_CharFormatFromLogFont(hDC, &lf, &fmt);
    ITextHost_TxReleaseDC(editor->texthost, hDC);