XtCreateSelectionRequest(3) XT FUNCTIONS XtCreateSelectionRequest(3)

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 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 the thread assembling
the request 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 deferred.

SEE ALSO

X Toolkit Intrinsics - C Language Interface
Xlib - C Language X Interface

X Version 11 libXt 1.1.5 XtCreateSelectionRequest(3)