notifyinfo (ULONG)

Control-specific information.

When the value of the notifycode parameter is VN_DRAGOVER, VN_DRAGLEAVE, VN_DROP, or VN_DROPHELP, this parameter is a pointer to a VSDRAGINFO structure.

When the value of the notifycode parameter is VN_INITDRAG, this parameter is a pointer to a VSDRAGINIT structure.

When the value of the notifycode parameter is VN_ENTER, VN_HELP, or VN_SELECT, this parameter contains the row and column of the selection cursor. The low-order word contains the row index, and the high-order word contains the column index.

Otherwise, this parameter is the window handle (HWND) of the value set control.