Detecting when the User Drags the RadTitleBar

Updated on Sep 24, 2026

The following example, demonstrates how to detect when the user drags the title bar and to how to get its coordinates:

Detecting when the TitleBar is dragged

C#

public const int WM_WINDOWPOSCHANGED = 0x47;
protected override void WndProc(ref Message m)
{
    if (m.Msg == WM_WINDOWPOSCHANGED)
    {
        this.Text = Control.MousePosition.ToString();
    }
    base.WndProc(ref m);
}

VB.NET

Public Const WM_WINDOWPOSCHANGED As Integer = 71
Protected Overloads Overrides Sub WndProc(ByRef m As Message)
    If m.Msg = WM_WINDOWPOSCHANGED Then
        Me.Text = Control.MousePosition.ToString()
    End If
    MyBase.WndProc(m)
End Sub