GdiPlusAbort interface

An object that GDI+ can ask whether a long operation should stop.

GdiPlusAbort declares one method, Abort. A class that implements it can be passed to Image.SetAbort, which hands it to GDI+. It mirrors the GdiplusAbort interface of GDI+ 1.1.

Class StopWhenAsked
    Implements GdiPlusAbort

    Public StopNow As Boolean

    Private Function GdiPlusAbort_Abort() As Long Implements GdiPlusAbort.Abort
        Return If(StopNow, 1, 0)
    End Function
End Class

Abort

Syntax: object.Abort( ) As Long

GDI+ calls it from time to time during a long operation on the image. Returning a value other than 0 asks GDI+ to stop the operation; returning 0 lets it go on.

Warning 0.9.45.0

Do not use this interface. GDI+ 1.0 and 1.1 do not implement the aborts, and an image that has been given an implementation with SetAbort causes an access violation in GDI+ the next time it is drawn.

See Also

• Image class – SetAbort
• Graphics class – SetAbort, which takes a raw pointer
• Types – the types of the package