XtCreateSelectionReqXeVersion 11 (ReXtCreateSelectionRequest(3Xt)
NAME
XtCreateSelectionRequest, XtSendSelectionRequest,
XtCancelSelectionRequest - bundle multiple selection
conversion requests into a single request using MULTIPLE
target
SYNTAX
void XtCreateSelectionRequest(requestor, selection)
Widget requestor;
Atom selection;
void XtSendSelectionRequest(requestor, selection, time)
Widget requestor;
Atom selection;
Time time;
void XtCancelSelectionRequest(requestor, selection)
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 XtCreateSelectionRequest is called, subsequent calls to
XtGetSelectionValue and XtGetSelectionValueIncremental with
the requestor and selection as specified to
XtCreateSelectionRequest will be bundled into a single
selection conversion request with multiple targets. The
request is actually initiated by calling
XtSendSelectionRequest.
When XtSendSelectionRequest is called with a value of
requestor and selection matching a previous call to
XtCreateSelectionRequest, 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
XtGetSelectionValue and XtGetSelectionValueIncremental are
invoked in turn.
Multi-threaded applications should lock the application
context before calling XtCreateSelectionRequest and release
the lock after calling XtSendSelectionRequest to ensure that
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XtCreateSelectionReqXeVersion 11 (ReXtCreateSelectionRequest(3Xt)
the thread assembling the reqeuest is safe from interference
by another thread assembling a different request naming the
same widget and selection.
When XtCancelSelectionRequest is called, any requests queued
since the last call to XtCreateSelectionRequest are cleaned
up. Subsequent calls to XtGetSelectionValue,
XtGetSelectionValues, XtGetSelectionValueIncremental, and
XtGetSelectionValuesIncremental will not be defered.
SEE ALSO
X Toolkit Intrinsics - C Language Interface
Xlib - C Language X Interface
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