ShowPrewittFilterDlg Example for Visual Basic

    Dim RasterImgEfxDlg As New LEADRasterDlgImgEfx_U
    Dim nRet As Integer
    
    RasterImgEfxDlg.UIFlags = PREWITTFILTER_SHOW_PREVIEW Or _
                              PREWITTFILTER_SHOW_TOOL_ZOOMLEVEL
    RasterImgEfxDlg.Bitmap = LEAD1.Bitmap
    
    nRet = RasterImgEfxDlg.ShowPrewittFilterDlg(hWnd)
    If (nRet = 0 And RasterImgEfxDlg.DialogStatus = DLG_OK) Then
        LEAD1.SpatialFilter RasterImgEfxDlg.SpatialFilterType
    End If