XtSetKeyboardFocus(3) | Library Functions Manual | XtSetKeyboardFocus(3) |
XtSetKeyboardFocus(Widget subtree, Widget descendant);
When there is no modal cascade, keyboard events can occur within a widget W in one of three ways:
When there is a modal cascade, a widget W receives keyboard events if an ancestor of W is in the active subset of the modal cascade and one or more of the previous conditions is True.
When subtree or one of its descendants acquires the X input focus or the pointer moves into the subtree such that keyboard events would now be delivered to subtree, a FocusIn event is generated for the descendant if FocusNotify events have been selected by the descendant. Similarly, when W loses the X input focus or the keyboard focus for one of its ancestors, a FocusOut event is generated for descendant if FocusNotify events have been selected by the descendant.
X Version 11 | XT FUNCTIONS |