Parameters
- mark
- Reference to the mark to add.
- type
- Type of the coordinate system the mark coordinates are specified in.
- groupIndex
- Index of the group to add the mark to.
Return Value
Integer value.
Please make sure the mark does not have parent group (i.e. ImGearARTMark.ParentGroup is null), otherwise ImageGear.Core.ImGearException will be thrown. If the mark to be added already has parent group, please clone it prior to adding to the page.