[DllImport("user32.dll")]
static extern bool ReleaseCapture();
<DllImport("user32.dll")> _
Private Shared Function ReleaseCapture() As Boolean
End Function
None.
None.
ReleaseCapture will delegate mousedown events to underlying controls.
Please add some!
You can use the ReleaseCapture() function to provide drag functionality. for example the following code will allow the user to drag a control around a form (you'll have to assign this code to the mousedown event):
[DllImport("User32.dll")]
private static extern int SendMessage(IntPtr hWnd, int msg , int wParam , ref int lParam);
[DllImport("user32")]
public static extern int ReleaseCapture(IntPtr hwnd);
private const int WM_SYSCOMMAND = 0x112;
private const int MOUSE_MOVE = 0xF012;
private void control_MouseDown(object sender, MouseEventArgs e)
{
Control ctrl = sender as Control;
ReleaseCapture(ctrl.Handle);
int nul =0;
SendMessage(ctrl.Handle, WM_SYSCOMMAND, MOUSE_MOVE, ref nul);
}
Capture property on System.Windows.Forms.Control
Do you know one? Please contribute it!