XmMenuPosition - Man Page

#include <Xm/RowColumn​.h>
void XmMenuPosition(
Widget menu,
XButtonPressedEvent * event);

XmMenuPosition positions a Popup menu pane using the information in the specified event​. Unless an application is positioning the menu pane itself, it must first invoke this function before managing the PopupMenu​. The x_root and y_root fields in the specified X event are used to determine the menu position​.

menu

Specifies the PopupMenu to be positioned

event

Specifies the event passed to the action procedure which manages the PopupMenu

Which corner of the PopupMenu is positioned at the x_root and y_root depends on the XmNlayoutDirection resource of the widget from which popup occurs​.

For a complete definition of RowColumn and its associated resources, see XmRowColumn(3)​.

XmRowColumn(3)​.

XmCreatePopupMenu(3), XmRowColumn(3).