.\" $Xorg: XtCreateSR.man,v 1.3 2000/08/17 19:42:00 cpqbld Exp $
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.\" $XFree86: xc/doc/man/Xt/XtCreateSR.man,v 1.3 2003/04/28 22:18:18 herrb Exp $
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.ds xI Intrinsics
.ds xW X Toolkit Athena Widgets \- C Language Interface
.ds xL Xlib \- C Language X Interface
.ds xC Inter-Client Communication Conventions Manual
.ds Rn 3
.ds Vn 2.2
.hw XtCreate-Selection-Request XtSend-Selection-Request XtCancel-Selection-Request wid-get
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.TH XtCreateSelectionRequest 3Xt __xorgversion__ "XT FUNCTIONS"
.SH NAME
XtCreateSelectionRequest, XtSendSelectionRequest, XtCancelSelectionRequest \- bundle multiple selection conversion requests into a single request using MULTIPLE target
.SH SYNTAX
.HP
void XtCreateSelectionRequest(Widget \fIrequestor\fP, Atom \fIselection\fP): 
.HP
void XtSendSelectionRequest(Widget \fIrequestor\fP, Atom \fIselection\fP, Time
\fItime\fP); 
.HP
void XtCancelSelectionRequest(Widget \fIrequestor\fP, Atom \fIselection\fP); 
.SH ARGUMENTS
.IP \fIrequestor\fP 1i
Specifies the widget making the request. Must be of class Core or a
subclass thereof.
.IP \fIselection\fP 1i
Specifies the particular selection desired.
.IP \fItime\fP 1i
Specifies the timestamp to be used in making the request.
.SH DESCRIPTION
When
.ZN XtCreateSelectionRequest 
is called, subsequent calls to
.ZN XtGetSelectionValue
and
.ZN XtGetSelectionValueIncremental
with the requestor and selection as specified to
.ZN XtCreateSelectionRequest 
will be bundled into a single selection conversion request with
multiple targets. The request is actually initiated by calling
.ZN XtSendSelectionRequest .
.LP
When
.ZN XtSendSelectionRequest
is called with a value of \fIrequestor\fP and \fIselection\fP matching
a previous call to
.ZN 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
.ZN XtGetSelectionValue
and
.ZN XtGetSelectionValueIncremental
are invoked in turn.
.LP
Multi-threaded applications should lock the application context before
calling
.ZN XtCreateSelectionRequest
and release the lock after calling
.ZN XtSendSelectionRequest
to ensure that the thread assembling the reqeuest is safe from interference
by another thread assembling a different request naming the same widget
and selection.
.LP
When
.ZN XtCancelSelectionRequest
is called, any requests queued since the last call to
.ZN XtCreateSelectionRequest
are cleaned up. Subsequent calls to
.ZN XtGetSelectionValue ,
.ZN XtGetSelectionValues ,
.ZN XtGetSelectionValueIncremental ,
and
.ZN XtGetSelectionValuesIncremental
will not be defered.
.SH "SEE ALSO"
.br
\fI\*(xT\fP
.br
\fI\*(xL\fP