BCGControlBar Pro for MFC
UINT BCGM_GRID_ITEM_LINK_CLICK

This registered windows message is sent to the grid's owner window by the default implementation of CBCGPGridCtrl::OnClickItemLink.

Parameters
wParamID of Grid Control that sent the message
lParama reference to BCGPLITEM structure, which describes the link.
Returns
The return value is ignored.