ArcGIS Developer Help  (ESRI.ArcGIS.Controls)  

OnBeforeScreenDrawEventHandler Delegate

Represents the method that handles the OnBeforeScreenDraw event.
[Visual Basic .NET]
Public Delegate Sub OnBeforeScreenDrawEventHandler ( _
    ByVal hdc As Integer _
)
[C#]
public delegate void OnBeforeScreenDrawEventHandler (
    int hdc
);