BCGSuite for MFC
void CBCGPChartDiagram3D::EnableChangePerspectiveByMouseWheel ( BOOL  bEnable = TRUE,
double  dblTolerance = 0.1 
)

Enables or disables changing 3D chart perspective by the mouse wheel.

Parameters
bEnableIf this parameter is TRUE, user is able to change 3D chart perspective by the mouse wheel.
dblToleranceChange perspective tolerance.