private void Cascade_Click(object sender, EventArgs e)
{
if (_parentMDI.MdiChildren.Length == 0)
{
_hasWindows = false;
}
else
{
_hasWindows = true;
_parentMDI.LayoutMdi(MdiLayout.Cascade);
}
}
public void TestPublicMethods ()
{
// Public Methods that force Handle creation:
// - CreateGraphics ()
// - GetChildAtPoint ()
// - Invoke, BeginInvoke throws InvalidOperationException if Handle has not been created
// - PointToClient ()
// - PointToScreen ()
// - RectangleToClient ()
// - RectangleToScreen ()
// - Select ()
// - Show (IWin32Window)
// Notes:
// - CreateControl does NOT force Handle creation!
Form c = new Form ();
c.BringToFront ();
Assert.IsFalse (c.IsHandleCreated, "A1");
c.Contains (new Form ());
Assert.IsFalse (c.IsHandleCreated, "A2");
c.CreateControl ();
Assert.IsFalse (c.IsHandleCreated, "A3");
c = new Form ();
Graphics g = c.CreateGraphics ();
g.Dispose ();
Assert.IsTrue (c.IsHandleCreated, "A4");
c.Dispose ();
c = new Form ();
c.Dispose ();
Assert.IsFalse (c.IsHandleCreated, "A5");
c = new Form ();
// This is weird, it causes a form to appear that won't go away until you move the mouse over it,
// but it doesn't create a handle??
//DragDropEffects d = c.DoDragDrop ("yo", DragDropEffects.None);
//Assert.IsFalse (c.IsHandleCreated, "A6");
//Assert.AreEqual (DragDropEffects.None, d, "A6b");
//Bitmap b = new Bitmap (100, 100);
//c.DrawToBitmap (b, new Rectangle (0, 0, 100, 100));
//Assert.IsFalse (c.IsHandleCreated, "A7");
//b.Dispose ();
c.FindForm ();
Assert.IsFalse (c.IsHandleCreated, "A8");
c.Focus ();
Assert.IsFalse (c.IsHandleCreated, "A9");
c.GetChildAtPoint (new Point (10, 10));
Assert.IsTrue (c.IsHandleCreated, "A10");
c.Dispose ();
c = new Form ();
c.GetContainerControl ();
Assert.IsFalse (c.IsHandleCreated, "A11");
c.Dispose ();
c = new Form ();
c.GetNextControl (new Control (), true);
Assert.IsFalse (c.IsHandleCreated, "A12");
c.GetPreferredSize (Size.Empty);
Assert.IsFalse (c.IsHandleCreated, "A13");
c.Hide ();
Assert.IsFalse (c.IsHandleCreated, "A14");
c.Invalidate ();
Assert.IsFalse (c.IsHandleCreated, "A15");
//c.Invoke (new InvokeDelegate (InvokeMethod));
//Assert.IsFalse (c.IsHandleCreated, "A16");
c.PerformLayout ();
Assert.IsFalse (c.IsHandleCreated, "A17");
c.PointToClient (new Point (100, 100));
Assert.IsTrue (c.IsHandleCreated, "A18");
c.Dispose ();
c = new Form ();
c.PointToScreen (new Point (100, 100));
Assert.IsTrue (c.IsHandleCreated, "A19");
c.Dispose ();
c = new Form ();
//c.PreProcessControlMessage ???
//c.PreProcessMessage ???
c.RectangleToClient (new Rectangle (0, 0, 100, 100));
Assert.IsTrue (c.IsHandleCreated, "A20");
c.Dispose ();
c = new Form ();
c.RectangleToScreen (new Rectangle (0, 0, 100, 100));
Assert.IsTrue (c.IsHandleCreated, "A21");
c.Dispose ();
c = new Form ();
c.Refresh ();
Assert.IsFalse (c.IsHandleCreated, "A22");
c.ResetBackColor ();
Assert.IsFalse (c.IsHandleCreated, "A23");
c.ResetBindings ();
Assert.IsFalse (c.IsHandleCreated, "A24");
c.ResetCursor ();
Assert.IsFalse (c.IsHandleCreated, "A25");
c.ResetFont ();
Assert.IsFalse (c.IsHandleCreated, "A26");
c.ResetForeColor ();
Assert.IsFalse (c.IsHandleCreated, "A27");
c.ResetImeMode ();
Assert.IsFalse (c.IsHandleCreated, "A28");
c.ResetRightToLeft ();
Assert.IsFalse (c.IsHandleCreated, "A29");
c.ResetText ();
Assert.IsFalse (c.IsHandleCreated, "A30");
c.SuspendLayout ();
Assert.IsFalse (c.IsHandleCreated, "A31");
c.ResumeLayout ();
Assert.IsFalse (c.IsHandleCreated, "A32");
c.Scale (new SizeF (1.5f, 1.5f));
Assert.IsFalse (c.IsHandleCreated, "A33");
c.Select ();
Assert.IsTrue (c.IsHandleCreated, "A34");
c.Dispose ();
c = new Form ();
c.SelectNextControl (new Control (), true, true, true, true);
Assert.IsFalse (c.IsHandleCreated, "A35");
c.SetBounds (0, 0, 100, 100);
Assert.IsFalse (c.IsHandleCreated, "A36");
c.Update ();
Assert.IsFalse (c.IsHandleCreated, "A37");
// Form
c.Activate ();
Assert.IsFalse (c.IsHandleCreated, "F1");
c.AddOwnedForm (new Form ());
Assert.IsFalse (c.IsHandleCreated, "F2");
c.Close ();
Assert.IsFalse (c.IsHandleCreated, "F3");
c.Hide ();
Assert.IsFalse (c.IsHandleCreated, "F4");
c.LayoutMdi (MdiLayout.Cascade);
Assert.IsFalse (c.IsHandleCreated, "F5");
#if !MONO
c.PerformAutoScale ();
Assert.IsFalse (c.IsHandleCreated, "F6");
#endif
c.PerformLayout ();
Assert.IsFalse (c.IsHandleCreated, "F7");
c.AddOwnedForm (new Form ());
c.RemoveOwnedForm (c.OwnedForms [c.OwnedForms.Length - 1]);
Assert.IsFalse (c.IsHandleCreated, "F8");
c.ScrollControlIntoView (null);
Assert.IsFalse (c.IsHandleCreated, "F9");
c.SetAutoScrollMargin (7, 13);
Assert.IsFalse (c.IsHandleCreated, "F10");
c.SetDesktopBounds (-1, -1, 144, 169);
Assert.IsFalse (c.IsHandleCreated, "F11");
c.SetDesktopLocation (7, 13);
Assert.IsFalse (c.IsHandleCreated, "F12");
c = new Form ();
c.Show (null);
Assert.IsTrue (c.IsHandleCreated, "F13");
c.Close ();
c = new Form ();
//c.ShowDialog ()
c.ToString ();
Assert.IsFalse (c.IsHandleCreated, "F14");
c.Validate ();
Assert.IsFalse (c.IsHandleCreated, "F15");
#if !MONO
c.ValidateChildren ();
Assert.IsFalse (c.IsHandleCreated, "F16");
#endif
c.Close ();
}