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@@ -1167,13 +1167,17 @@ namespace System.Windows.Forms {
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}
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public void Close () {
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- if (!IsDisposed) {
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- XplatUI.SendMessage(this.Handle, Msg.WM_CLOSE, IntPtr.Zero, IntPtr.Zero);
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- if (is_modal)
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- Hide ();
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- else
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- Dispose ();
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- }
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+ if (IsDisposed)
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+ return;
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+
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+ if (!is_visible)
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+ return;
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+
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+ XplatUI.SendMessage(this.Handle, Msg.WM_CLOSE, IntPtr.Zero, IntPtr.Zero);
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+ if (is_modal)
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+ Hide ();
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+ else
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+ Dispose ();
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}
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public void LayoutMdi(MdiLayout value) {
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