protected override void FilterMessage(object sender, FilterMessageEventArgs e)
{
e.Handled = false;
if (Manager == null)
{
return;
}
switch (e.Msg)
{
case WM_NCLBUTTONDOWN: //Left button down on title -> start dragging over docking manager
if (IsDockableWindow && e.WParam.ToInt32() == HTCAPTION)
{
short x = (short)((e.LParam.ToInt32() & 0xFFFF));
short y = (short)((e.LParam.ToInt32() >> 16));
Point clickPoint = this.TransformToDeviceDPI(new Point(x, y));
Manager.Drag(this, clickPoint, new Point(clickPoint.X - Left, clickPoint.Y - Top));
e.Handled = true;
}
break;
case WM_NCLBUTTONDBLCLK: //Left Button Double Click -> dock to docking manager
if (IsDockableWindow && e.WParam.ToInt32() == HTCAPTION)
{
if (IsDockableWindow)
{
Dock();
e.Handled = true;
}
}
break;
}
base.FilterMessage(sender, e);
}
protected virtual void FilterMessage(object sender, FilterMessageEventArgs e)
{
if (e.Handled)
{
return;
}
if (Manager == null)
{
return;
}
switch (e.Msg)
{
case WM_SIZE:
case WM_MOVE:
break;
case WM_NCRBUTTONDOWN: //Right button click on title area -> show context menu
if (e.WParam.ToInt32() == HTCAPTION)
{
short x = (short)((e.LParam.ToInt32() & 0xFFFF));
short y = (short)((e.LParam.ToInt32() >> 16));
OpenContextMenu(null, new Point(x, y));
e.Handled = true;
}
break;
case WM_NCRBUTTONUP: //set as handled right button click on title area (after showing context menu)
if (e.WParam.ToInt32() == HTCAPTION)
{
e.Handled = true;
}
break;
}
}
private IntPtr HookHandler(
IntPtr hwnd,
int msg,
IntPtr wParam,
IntPtr lParam,
ref bool handled
)
{
handled = false;
switch (msg)
{
case SC_MOVE:
case WM_WINDOWPOSCHANGING:
SafeFireEvent <EventArgs>(WindowPosChanging, EventArgs.Empty);
break;
case WM_MOUSEACTIVATE:
{
CancelEventArgs args = new CancelEventArgs();
SafeFireEvent <CancelEventArgs>(WindowActivating, args);
if (args.Cancel)
{
Debug.WriteLine("Cancelled");
handled = true;
return((IntPtr)MA_NOACTIVATE);
}
}
break;
case WM_ACTIVATE:
{
if (((int)wParam & 0xFFFF) != WA_INACTIVE)
{
CancelEventArgs args = new CancelEventArgs();
SafeFireEvent <CancelEventArgs>(WindowActivating, args);
if (args.Cancel)
{
if (lParam != IntPtr.Zero)
{
SetActiveWindow(lParam);
}
Debug.WriteLine("Cancelled Activation");
handled = true;
}
}
}
break;
}
if (!handled)
{
FilterMessageEventArgs e = new FilterMessageEventArgs(
hwnd,
msg,
wParam,
lParam);
SafeFireEvent <FilterMessageEventArgs>(FilterMessage, e);
handled = e.Handled;
}
return(IntPtr.Zero);
}
