BCGControlBar Pro for MFC
UINT BCGM_GRID_ITEM_COMMAND_CLICK

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

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