PEP_GT_BARCHART
PEP_GT_LINECHART
PEP_GT_AREACHART
PEP_GT_PIECHART
PEP_GT_DOUGHNUTCHART
PEP_GT_THREEDRISERCHART
PEP_GT_THREEDSURFACECHART
PEP_GT_SCATTERCHART
PEP_GT_RADARCHART
PEP_GT_BUBBLECHART
PEP_GT_STOCKCHART
PEP_GT_USERDEFINEDCHART
For PEGetGraphTypeInfo only.
PEP_GT_UNKNOWNTYPECHART
Do not use in PESetGraphTypeInfo.