Επεξεργασία

Κοινή χρήση μέσω


DrawToolTipEventArgs.DrawBackground Method

Definition

Draws the background of the ToolTip using the system background color.

public:
 void DrawBackground();
public void DrawBackground ();
member this.DrawBackground : unit -> unit
Public Sub DrawBackground ()

Examples

The following code example demonstrates how to custom draw the ToolTip. The example creates a ToolTip and associates it to three Button controls located on the Form. The example sets the OwnerDraw property to true and handles the Draw event. In the Draw event handler, the ToolTip is custom drawn differently depending on what button the ToolTip is being displayed for as indicated by the DrawToolTipEventArgs.AssociatedControl property.

The code excerpt below demonstrates using the DrawBorder, DrawBackground, and DrawText methods. See the DrawToolTipEventArgs class overview for the complete code example.

// Draw the ToolTip using default values if the ToolTip is for button3.
else if ( e->AssociatedControl == button3 )
{
   e->DrawBackground();
   e->DrawBorder();
   e->DrawText();
}
// Draw the ToolTip using default values if the ToolTip is for button3.
else if (e.AssociatedControl == button3)
{
    e.DrawBackground();
    e.DrawBorder();
    e.DrawText();
}
ElseIf (e.AssociatedControl Is button3) Then
    ' Draw the ToolTip using default values if the ToolTip is for button3.
    e.DrawBackground()
    e.DrawBorder()
    e.DrawText()
End If

Remarks

Use this method when you want to customize certain visual aspects of the ToolTip, but want a standard ToolTip background drawn for you using the current value of SystemColors.Info. The background is drawn to fill the area specified by the Bounds property.

Applies to