internal ContainerControl FindContainerControlInternal()
{
if (this.Site != null)
{
IDesignerHost designerHost = (IDesignerHost)this.Site.GetService(typeof(IDesignerHost));
if (designerHost != null)
{
IComponent component = designerHost.RootComponent;
if ((component != null) && (component is ContainerControl))
{
return((ContainerControl)component);
}
}
}
ContainerControl containerControl = null;
for (Control control = this; control != null; control = control.Parent)
{
ContainerControl control_as_ContainerContral = control as ContainerControl;
if (control_as_ContainerContral != null)
{
containerControl = control_as_ContainerContral;
}
}
if (containerControl == null)
{
containerControl = Control.FromHandle(UnsafeNativeMethods.GetParent(new HandleRef(this, base.Handle))) as ContainerControl;
}
if (ApplicationShim.IsParkingWindow(containerControl))
{
containerControl = null;
}
this.SetActiveXHostState(ActiveXHelper.RecomputeContainingControl, containerControl == null);
return(containerControl);
}
protected override void WndProc(ref Message m)
{
switch (m.Msg)
{
case NativeMethods.WM_LBUTTONDOWN:
case NativeMethods.WM_RBUTTONDOWN:
case NativeMethods.WM_MBUTTONDOWN:
case NativeMethods.WM_MOUSEACTIVATE:
if (!base.DesignMode)
{
this.Focus();
}
this.DefWndProc(ref m);
return;
case NativeMethods.WM_LBUTTONUP:
case NativeMethods.WM_LBUTTONDBLCLK:
case NativeMethods.WM_RBUTTONUP:
case NativeMethods.WM_RBUTTONDBLCLK:
case NativeMethods.WM_MBUTTONUP:
case NativeMethods.WM_MBUTTONDBLCLK:
case NativeMethods.x2055:
case NativeMethods.WM_CONTEXTMENU:
case NativeMethods.WM_ERASEBKGND:
case NativeMethods.WM_SYSCOLORCHANGE:
case NativeMethods.WM_SETCURSOR:
case NativeMethods.WM_DRAWITEM:
this.DefWndProc(ref m);
return;
case NativeMethods.WM_COMMAND:
if (!ControlShim.ReflectMessageInternal(m.LParam, ref m))
{
this.DefWndProc(ref m);
}
return;
case NativeMethods.WM_HELP:
base.WndProc(ref m);
this.DefWndProc(ref m);
return;
case NativeMethods.WM_DESTROY:
break;
case NativeMethods.WM_KILLFOCUS:
this.hwndFocus = m.WParam;
try
{
base.WndProc(ref m);
return;
}
finally
{
this.hwndFocus = IntPtr.Zero;
}
default:
if (m.Msg == ActiveXHelper.REGMSG_MSG)
{
m.Result = (IntPtr)0x7b;
}
else
{
base.WndProc(ref m);
}
return;
}
if ((this.activeXState >= ActiveXHelper.ActiveXState.InPlaceActive))
{
IntPtr window = this.activeXOleInPlaceObject.GetWindow();
if (window != IntPtr.Zero)
{
ApplicationShim.ParkHandle(new HandleRef(this.activeXOleInPlaceObject, window));
}
}
if (base.RecreatingHandle)
{
this.activeXReloadingState = this.activeXState;
}
this.ChangeActiveXStateDownTo(ActiveXHelper.ActiveXState.Running);
if (this.activeXWindow != null)
{
this.activeXWindow.ReleaseHandle();
}
this.OnHandleDestroyed(EventArgs.Empty);
}