Release a transport control structure used with drag and drop
void PtReleaseTransportCtrl( PtTransportCtrl_t *ctrl );
This function releases the PtTransportCtrl_t structure pointed to by ctrl, as well as its members.
PtCreateTransportCtrl(), PtInitDnd(), PtTransportCtrl_t, PtTransportType()
Drag and Drop chapter of the Photon Programmer's Guide