Authors: Sander van Leeuwen <sandervl@xs4all.nl>, Dietrich Teickner <Dietrich_Teickner@t-online.de>

- Fixed incorrect undo buffer size (previous code caused heap corruption when using backspace many times). - Always kill timer when left mouse button is released and in captured state.

Authors: Sander van Leeuwen <sandervl@xs4all.nl>, Dietrich Teickner <Dietrich_Teickner@t-online.de>
6356a441 · Alexandre Julliard · def211c4 · 6356a441
Commit 6356a441 authored Feb 19, 2003 by Alexandre Julliard
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edit.c controls/edit.c +3 -3

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--- a/controls/edit.c
+++ b/controls/edit.c
@@ -1747,7 +1747,7 @@ static BOOL EDIT_MakeUndoFit(EDITSTATE *es, UINT size)
 	alloc_size = ROUND_TO_GROW((size + 1) * sizeof(WCHAR));
 	if ((es->undo_text = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, es->undo_text, alloc_size))) {
-		es->undo_buffer_size = alloc_size/sizeof(WCHAR);
+		es->undo_buffer_size = alloc_size/sizeof(WCHAR) - 1;
 		return TRUE;
 	}
 	else
@@ -4216,9 +4216,9 @@ static LRESULT EDIT_WM_LButtonDown(EDITSTATE *es, DWORD keys, INT x, INT y)
 */
 static LRESULT EDIT_WM_LButtonUp(EDITSTATE *es)
 {
-	if (es->bCaptureState && GetCapture() == es->hwndSelf) {
+	if (es->bCaptureState) {
 		KillTimer(es->hwndSelf, 0);
-		ReleaseCapture();
+		if (GetCapture() == es->hwndSelf) ReleaseCapture();
 	}
 	es->bCaptureState = FALSE;
 	return 0;