ToolTip.Show Method (String, IWin32Window)
Sets the ToolTip text associated with the specified control, and displays the ToolTip modally.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
The version of the Show method displays the ToolTip for the specified control modally; that is, the ToolTip will be displayed until the Hide method is called, or until the parent form is minimized, hidden, or closed. The ToolTip is positioned in the center of the associated control.
Available since 2.0