This property controls the functionality of the mouse wheel. VCL Enumerations: Replace the x prefix with either g(graph), sg(scientific graph), td(3D scientific graph), ps(polar/smith), or pc(pie chart).
The .NET developer reads this property in response to a PePreHScroll or PePreVScroll event. When using the ActiveX/VCL interface, in response to a PreHScroll or PreVScroll event handler.
The .NET developer reads this property in response to a PePreHScroll or PePreVScroll event. When using the ActiveX/VCL interface, in response to a PreHScroll or PreVScroll event handler.