— A RowColumn widget convenience creation
creates an instance of a RowColumn widget of type
and returns the associated widget ID.
- Specifies the parent widget ID
- Specifies the name of the created widget
- Specifies the argument list
- Specifies the number of attribute/value pairs in the argument list (
Specifies the number of attribute/value pairs in the argument list (
). When this function is used to create the Pulldown menu pane,
a MenuShell widget is automatically created as the parent of the menu pane. If
the widget specified by the parent
parameter is a Popup or a Pulldown
menu pane, the MenuShell widget is created as a child of the parent
MenuShell; otherwise, it is created as a child of the specified parent
is provided as a convenience function for creating
RowColumn widgets configured to operate as Pulldown menu panes and is not
implemented as a separate widget class.
A Pulldown menu pane displays a 3-D shadow, unless the feature is disabled by
the application. The shadow appears around the edge of the menu pane.
A Pulldown menu pane is used with submenus that are to be attached to a
CascadeButton or a CascadeButtonGadget. This is the case for all menu panes
that are part of a PulldownMenu system (a MenuBar), the menu pane associated
with an OptionMenu, and any menu panes that cascade from a Popup menu pane.
Pulldown menu panes that are to be associated with an OptionMenu must be
created before the OptionMenu is created.
The Pulldown menu pane must be attached to a CascadeButton or
CascadeButtonGadget that resides in a MenuBar, a Popup menu pane, a Pulldown
menu pane, or an OptionMenu. It is attached with the button resource
A MenuShell widget is required between the Pulldown menu pane and its parent. If
the application uses this convenience function for creating a Pulldown menu
pane, the MenuShell is automatically created as the real parent of the menu
pane; otherwise, it is the application's responsibility to create the
To function correctly when incorporated into a menu, the Pulldown menu pane's
hierarchy must be considered. This hierarchy depends on the type of menu
system that is being built, as follows:
- If the Pulldown menu pane is to be pulled down from a MenuBar, its
parent must be the MenuBar.
- If the Pulldown menu pane is to be pulled down from a Popup or another
Pulldown menu pane, its parent must be that Popup or Pulldown menu
- If the Pulldown menu pane is to be pulled down from an OptionMenu, its
parent must be the same as the OptionMenu parent.
PullDown menu panes support tear-off capabilities for tear-off menus through
resources. For a complete definition of RowColumn and its
associated resources, see XmRowColumn
Returns the RowColumn widget ID.
(3), and XmVaCreateSimplePulldownMenu