Check PROPSHEETPAGEA.pfnCallback for NULL pointer if PSP_USECALLBACK

is given.

Check PROPSHEETPAGEA.pfnCallback for NULL pointer if PSP_USECALLBACK
9f05b822 · Andreas Mohr · Alexandre Julliard · 2ad98552 · 9f05b822
Commit 9f05b822 authored Feb 12, 2001 by Andreas Mohr Committed by Alexandre Julliard Feb 12, 2001
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propsheet.c dlls/comctl32/propsheet.c +1 -1

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--- a/dlls/comctl32/propsheet.c
+++ b/dlls/comctl32/propsheet.c
@@ -199,7 +199,7 @@ BOOL PROPSHEET_CollectPageInfo(LPCPROPSHEETPAGEA lppsp,
   * Process property page flags.
   */
  dwFlags = lppsp->dwFlags;
-  psInfo->proppage[index].useCallback = dwFlags & PSP_USECALLBACK;
+  psInfo->proppage[index].useCallback = (dwFlags & PSP_USECALLBACK) && (lppsp->pfnCallback);
  psInfo->proppage[index].hasHelp = dwFlags & PSP_HASHELP;
  psInfo->proppage[index].hasIcon = dwFlags & (PSP_USEHICON | PSP_USEICONID);