NAME
XmClipboardInquireLength — A clipboard function that returns the length
of the stored data
SYNOPSIS
#include <Xm/CutPaste.h>
int XmClipboardInquireLength (display, window, format_name, length)
Display * display;
Window window;
char * format_name;
unsigned long * length;
(void)
DESCRIPTION
XmClipboardInquireLength returns the length of the data stored under a
specified format name for the clipboard data item. If no data is found
for the specified format, or if there is no item on the clipboard, this
function returns a value of 0 (zero) in the length argument.
Any format passed by name is assumed to have length passed in a call to
XmClipboardCopy, even though the data has not yet been transferred to
the clipboard in that format.
display Specifies a pointer to the Display structure that was
returned in a previous call to XOpenDisplay or XtDisplay.
window Specifies the window ID of a widget that relates the
application window to the clipboard. The widget’s window ID
can be obtained through XtWindow. The same application
instance should pass the same window ID to each of the
clipboard functions that it calls.
format_name
Specifies the name of the format for the data item.
length Specifies the length of the next data item in the specified
format. This argument equals 0 (zero) if no data is found for
the specified format, or if there is no item on the
clipboard.
RETURN
XmClipboardSuccess
The function was successful.
XmClipboardLocked
The function failed because the clipboard was locked by
another application. The application can continue to call the
function again with the same parameters until the lock goes
away. This gives the application the opportunity to ask if
the user wants to keep trying or to give up on the operation.
XmClipboardNoData
The function could not find data on the clipboard
corresponding to the format requested. This could occur
because the clipboard is empty; there is data on the
clipboard, but not in the requested format; or the data in
the requested format was passed by name and is no longer
available.
RELATED
XmClipboardCopy(3) and XmClipboardStartCopy(3).
XmClipboardInquireLength(library call)