public static extern int SendMessage(IntPtr hWnd, int msg, int wParam, ref TOOLINFO lParam);
private void TooltipAction( Control ctrl, string text, TToolAction action )
{
if( ctrl.Parent != null )
{
AttachToParent( ctrl.Parent.Handle );
Rectangle clientRect = new Rectangle( ctrl.Location, ctrl.Size );
TOOLINFO info = new TOOLINFO();
info.cbSize = (uint)Marshal.SizeOf( typeof( TOOLINFO ) );
info.uFlags = (uint)ToolTipFlags.TTF_IDISHWND | (uint)ToolTipFlags.TTF_SUBCLASS;
info.hwnd = ctrl.Parent.Handle;
info.uId = ctrl.Handle;
info.lpszText = text; //( text != null ) ? Marshal.StringToHGlobalAuto( text ) : IntPtr.Zero;
info.rect = (RECT)clientRect;
int msg = 0;
switch( action )
{
case TToolAction.INSERT:
msg = (int)ToolTipMsg.TTM_ADDTOOLW;
Trace.WriteLine( "Add", "TOOL ACTION" );
break;
case TToolAction.UPDATE:
msg = (int)ToolTipMsg.TTM_UPDATETIPTEXTW;
Trace.WriteLine( "Update Text", "TOOL ACTION" );
break;
case TToolAction.REMOVE:
msg = (int)ToolTipMsg.TTM_DELTOOLW;
Trace.WriteLine( "Add", "TOOL ACTION" );
break;
}
int result = WindowsAPI.SendMessage( m_tooltip.Handle, msg, 0, ref info );
if( result == 0 )
{
Trace.WriteLine( "Tool Action status FAIL!!!", "Notification" );
}
}
}
public static extern int SendMessage( IntPtr hWnd, int msg, int wParam, ref TOOLINFO lParam );