| public Show ( object caller ) : bool | ||
| caller | object | Reference to object causing the context menu to be shown. |
| return | bool | |
/// <summary>
/// Process Windows-based messages.
/// </summary>
/// <param name="m">A Windows-based message.</param>
protected override void WndProc(ref Message m)
{
// We need to snoop the need to show a context menu
if (m.Msg == PI.WM_CONTEXTMENU)
{
// Only interested in overriding the behavior when we have a krypton context menu...
if (KryptonContextMenu != null)
{
// Extract the screen mouse position (if might not actually be provided)
Point mousePt = new Point(PI.LOWORD(m.LParam), PI.HIWORD(m.LParam));
// If keyboard activated, the menu position is centered
if (((int)((long)m.LParam)) == -1)
{
mousePt = new Point(Width / 2, Height / 2);
}
else
{
mousePt = PointToClient(mousePt);
// Mouse point up and left 1 pixel so that the mouse overlaps the top left corner
// of the showing context menu just like it happens for a ContextMenuStrip.
mousePt.X -= 1;
mousePt.Y -= 1;
}
// If the mouse posiiton is within our client area
if (ClientRectangle.Contains(mousePt))
{
// Show the context menu
KryptonContextMenu.Show(this, PointToScreen(mousePt));
// We eat the message!
return;
}
}
}
if (!IsDisposed)
{
base.WndProc(ref m);
}
}
private void ShowMenu(Control c, KryptonContextMenu kcm)
{
kcm.Show(c.RectangleToScreen(c.ClientRectangle),
(KryptonContextMenuPositionH)Enum.Parse(typeof(KryptonContextMenuPositionH), (string)comboBoxH.SelectedItem),
(KryptonContextMenuPositionV)Enum.Parse(typeof(KryptonContextMenuPositionV), (string)comboBoxV.SelectedItem));
}
private void ShowTreeRightMenu(Control c, KryptonContextMenu kcm)
{
kcm.Show(c.RectangleToScreen(c.ClientRectangle), KryptonContextMenuPositionH.Left, KryptonContextMenuPositionV.Below);
}