NAME¶
XtSetSelectionParameters - specify target parameters for a selection request
with a single target
SYNTAX¶
void
XtSetSelectionParameters(Widget requestor, Atom selection, Atom
type, XtPointer value, unsigned long length, int
format);
ARGUMENTS¶
- requestor
- Specifies the widget making the request. Must be of class
Core or any subclass thereof.
- selection
- Specifies the atom that names the selection.
- type
- Specifies the type of the property in which the parameters
will be passed.
- value
- Specifies a pointer to the parameters.
- length
- Specifies the number of elements containing data in
value, each element of a sized indicated by format.
- format
- Specifies the size in bits of the data in the elements of
value.
DESCRIPTION¶
The specified parameters will be copied and stored in a new property of the
specified type and format on the requestor's window. To initiate a selection
request with a target and these parameters, a subsequent call to
XtGetSelectionValue or to
XtGetSelectionValueIncremental
specifying the same requestor widget and selection atom will generate a
ConvertSelection request referring referring to the property containing
the parameters. If
XtSetSelectionParameters is called more than once
with the same widget and selection without a call to specify a request, the
most recently specified parameters are used in the subsequent request.
The possible values of
format may be 8, 16, or 32. If the
format
is 8, the elements of
value are assumed to be sizeof(char); if 16,
sizeof(short); if 32, sizeof(long).
To generate a MULTIPLE target request with parameters for any of the multiple
targets of the selection request, precede individual calls to
XtGetSelectionValue and
XtGetSelectionValueIncremental with
corresponding individual calls to
XtSetSelectionParameters, and enclose
these all within
XtCreateSelectionRequest and
XtSendSelectionRequest.
XtGetSelectionValues and
XtGetSelectionValuesIncremental cannot be used to make selection
requests with parameterized targets.
SEE ALSO¶
XtGetSelectionParameters(3)
X Toolkit Intrinsics - C Language Interface
Xlib - C Language X Interface
