NAME
XtCreateSelectionRequest, XtSendSelectionRequest, XtCancelSelectionRequest - bundle multiple selection conversion requests into a single request using MULTIPLE target
SYNTAX
void XtCreateSelectionRequest(Widget requestor, Atom selection):
void XtSendSelectionRequest(Widget requestor, Atom selection, Time
time);
void XtCancelSelectionRequest(Widget requestor, Atom selection);
ARGUMENTS
requestor
Specifies the widget making the request. Must be of class Core or a
subclass thereof.
selection
Specifies the particular selection desired.
time
Specifies the timestamp to be used in making the request.
DESCRIPTION
When
is called, subsequent calls to
and
with the requestor and selection as specified to
will be bundled into a single selection conversion request with
multiple targets. The request is actually initiated by calling
When
is called with a value of requestor and selection matching
a previous call to
a selection conversion request is actually sent to the selection owner.
If a single target request is queued, that request is made. If multiple
targets are queued they are bundled into a single request with the
target MULTIPLE using the specified timestamp. As the conversions are
made, the callbacks associated with each
and
are invoked in turn.
Multi-threaded applications should lock the application context before
calling
and release the lock after calling
to ensure that the thread assembling the request is safe from interference
by another thread assembling a different request naming the same widget
and selection.
When
is called, any requests queued since the last call to
are cleaned up. Subsequent calls to
and
will not be deferred.
SEE ALSO
