The quick solution I am using is dropping a panel into the groupbox and set the dock to fill and set the background to transparent. However, the mousedown is still not captured when occurring on the groupbox's border or header. I am wondering if there is a better way to this bandaid approach.
Charles
Try overriding the WndProc for that groupbox.
Catch the WM_LBUTTONDOWN message and add your code there.
I don't know exactly where is the client and non-client area (and is there a non-client area) in a groupbox but to be more explicit you may catch the WM_NCLBUTTONDOWN message and check the return value of WPARAM(it contains the WM_NCHITTEST value)
for instanse:
...................
case 0x00A1://WM_NCLBUTTONDOWN
if(m.WParam.ToInt32() == 1//HTCLIENT)
{
//your code goes here
}
else//you have non-client click
{
//do something
}
....................
Hope this helps!
Gogou
<B>VB:</b>
Private Sub GroupBox1_MouseDown(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles GroupBox1.MouseDown
MsgBox(CStr(e.X) + ", " + CStr(e.Y))
End Sub
<B>C#:</b>
this.groupBox1.MouseDown += new System.Windows.Forms.MouseEventHandler(this.GroupBox1_MouseDown);
private void GroupBox1_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)
{
MessageBox.Show(e.X.ToString() + ", " + e.Y.ToString());
}
Cheers,
Bri
I haven't tested the OnMouseDown event for groupbox and according to author's post it wasn't reachable through .NET Framework. That's why I suggested WndProc. And I agree with you that just adding an event handler for MouseDown or overriding the OnMouseDown is much more simpler (and intuitive). I am for pure C# (if possible) too :))
Cheers,
Gogou
