XmeConvertMerge(3X) UNIX System V XmeConvertMerge(3X)
NAME
XmeConvertMerge - A toolkit function that merges data
converted during a transfer operation
SYNOPSIS
#include <Xm/Xm.h>
void XmeConvertMerge(
XtPointer data,
Atom type,
int format,
unsigned long length,
XmConvertCallbackStruct *call_data);
VERSION
This page documents Motif 2.1.
DESCRIPTION
XmeConvertMerge merges data converted in the course of a
transfer operation. The data to be merged is typically two
list of targets. An XmNconvertCallback procedure in an
application may supply some elements of the list, and the
convertProc trait method of a widget may supply others.
Therefore, the convertProc trait method will need to call
XmeConvertMerge to merge the two target lists.
XmeConvertMerge can only be called from an
XmNconvertCallback procedure or from a convertProc trait
method.
A convertProc trait method usually calls XmeConvertMergewhen
an XmNconvertCallback procedure returns an
XmConvertCallbackStruct structure containing a status of
XmCONVERT_MERGE.
XmeConvertMerge uses XtRealloc to increase the allocated
storage for the value member of the
XmConvertCallbackStructpassed in the call_data argument. It
then appends data to the data already present in the value
member. The type and format passed as arguments to
XmeConvertMergemust match the type and format fields passed
in the XmConvertCallbackStruct.
data Specifies the data to be added to the value member
of the callback struct.
type Indicates the type of data.
format Specifies how the call should interpret data. You
must specify 8, 16, or 32. A value of 8 implies
that datais an array of char. A value of 16
implies that data is an array of short. A value of
32 implies that data is an array of long. It is
Page 1 (printed 7/20/06)
XmeConvertMerge(3X) UNIX System V XmeConvertMerge(3X)
possible that the specified number may not match
the actual number of bits passed in data. For
example, a value of 32 may actually correspond to
a 64-bit data structure on some machines.
length Specifies the number of elements in data, where
each element has the number of bits specified by
format.
call_data Specifies a pointer to the XmConvertCallbackStruct
that is to be modified.
RELATED
XmQTtransfer(3), XmTransferDone(3), XmTransferValue(3),
XmeClipboardSink(3), XmeClipboardSource(3),
XmeDragSource(3), XmeDropSink(3), XmeGetEncodingAtom(3),
XmePrimarySink(3), XmePrimarySource(3), XmeSecondarySink(3),
XmeSecondarySource(3), XmeSecondaryTransfer(3),
XmeStandardConvert(3), XmeStandardTargets(3), and
XmeTransferAddDoneProc(3).
Page 2 (printed 7/20/06)
