C# override WndProc in Control level to detect
- by Nullstr1ng
I have overridden WndProc in UserControl level to detect MouseDown, MouseUp, and MouseMove to any Control added in that UserControl.
protected override void WndProc(ref Message m)
{
Point mouseLoc = new Point();
switch (m.Msg)
{
case WM_LBUTTONDOWN:
System.Diagnostics.Debug.WriteLine("mouse down");
//this.OnMouseDown(new MouseEventArgs(MouseButtons.Left, 1, mouseLoc.X, mouseLoc.Y, 0));
break;
case WM_LBUTTONUP:
System.Diagnostics.Debug.WriteLine("mouse up");
//this.OnMouseDown(new MouseEventArgs(MouseButtons.Left, 1, mouseLoc.X,mouseLoc.Y, 0));
break;
case WM_MOUSEMOVE:
int lParam = m.LParam.ToInt32();
//mouseLoc.X = lParam & 0xFFFF;
//mouseLoc.Y = (int)(lParam & 0xFFFF0000 >> 16);
mouseLoc.X = (Int16)m.LParam;
mouseLoc.Y = (Int16)((int)m.LParam >> 16);
System.Diagnostics.Debug.WriteLine("mouse move: " + mouseLoc.X + ", " + mouseLoc.Y);
//this.OnMouseDown(new MouseEventArgs(MouseButtons.Left, 1, mouseLoc.X,mouseLoc.Y, 0));
break;
}
base.WndProc(ref m);
}
MouseMove, Down, and Up are working when the mouse pointer is in UserControl but when the mouse pointer is on other control (inside my UserControl) it doesn't work.
Am I doing something wrong?
Currently developing a flick and scroll control.
