PEVENT_GETN
typedef int (* PEVENT_GETN)(TreeNode& tr, int nRow, int nEvent, DWORD& dwEnables, LPCSTR lpcszNodeName, WndContainer& getNContainer, string& strAux, string& strErrMsg);
Click here and go to EX3 to see example.
The function pointer of the GetNBox dialog's event.
GetNbox.h