richedit: Prevent an unsigned integer underflow.

ee19ec05 · Dylan Smith · Alexandre Julliard · 8089d980 · ee19ec05
Commit ee19ec05 authored Jan 11, 2009 by Dylan Smith Committed by Alexandre Julliard Jan 12, 2009
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paint.c dlls/riched20/paint.c +1 -1

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--- a/dlls/riched20/paint.c
+++ b/dlls/riched20/paint.c
@@ -1127,7 +1127,7 @@ int ME_GetYScrollPos(ME_TextEditor *editor)

 BOOL ME_GetYScrollVisible(ME_TextEditor *editor)
 { /* Returns true if the scrollbar is visible */
-  return (editor->vert_si.nMax - editor->vert_si.nMin >= max(editor->vert_si.nPage - 1, 0));
+  return (editor->vert_si.nMax - editor->vert_si.nMin > editor->vert_si.nPage);
 }

 void ME_EnsureVisible(ME_TextEditor *editor, ME_DisplayItem *pRun)