Guard against incoming string of NULL in WM_SETTEXT.

f3ea345b · James Hatheway · Alexandre Julliard · 0b47b289 · f3ea345b
Commit f3ea345b authored Jan 12, 2001 by James Hatheway Committed by Alexandre Julliard Jan 12, 2001
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edit.c controls/edit.c +2 -2

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--- a/controls/edit.c
+++ b/controls/edit.c
@@ -4467,11 +4467,11 @@ static void EDIT_WM_SetFont(WND *wnd, EDITSTATE *es, HFONT font, BOOL redraw)
 */
 static void EDIT_WM_SetText(WND *wnd, EDITSTATE *es, LPARAM lParam, BOOL unicode)
 {
-    LPWSTR text;
+    LPWSTR text = NULL;

    if(unicode)
 	text = (LPWSTR)lParam;
-    else
+    else if (lParam)
    {
 	LPCSTR textA = (LPCSTR)lParam;
 	INT countW = MultiByteToWideChar(CP_ACP, 0, textA, -1, NULL, 0);