BCGSuite for MFC
BOOL CBCGPEditCtrl::m_bEnableSymSupport

If TRUE, symbol support is enabled. If FALSE, symbol support is disabled.

Set this member variable to TRUE to enable symbol support. Default value is FALSE.

If you enable symbol support, you need to set image list for symbols using SetSymImgList() and fill the list of symbol definitions m_lstSymDefs by BCGP_EDIT_SYM_DEF structures.