ToolTip.Show Method (String, IWin32Window, Point, Int32)
Sets the ToolTip text associated with the specified control, and then displays the ToolTip for the specified duration at the specified relative position.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
A Point containing the offset, in pixels, relative to the upper-left corner of the associated control window, to display the ToolTip.
The pt parameter can specify a position outside the bounds of the associated control, its parent form, or even the desktop. The ToolTip is positioned in the center of the associated control. To display the ToolTip modally, call the Show(String, IWin32Window, Point) overloaded version of this method instead.
Available since 2.0