CentOS 7.0 - man page for xmclipboardretrieve (centos section 3)
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XmClipboardRetrieve(library call) XmClipboardRetrieve(library call)
XmClipboardRetrieve -- A clipboard function that retrieves a data item from the clipboard
int XmClipboardRetrieve (display, window, format_name,
buffer, length, num_bytes, private_id)
Display * display;
char * format_name;
unsigned long length;
unsigned long * num_bytes;
long * private_id;
XmClipboardRetrieve retrieves the current data item from clipboard storage. It returns a
warning if the clipboard is locked, if there is no data on the clipboard, or if the data
needs to be truncated because the buffer length is too short.
Between a call to XmClipboardStartRetrieve and a call to XmClipboardEndRetrieve, multiple
calls to XmClipboardRetrieve with the same format name result in data being incrementally
copied from the clipboard until the data in that format has all been copied.
The return value XmClipboardTruncate from calls to XmClipboardRetrieve indicates that more
data remains to be copied in the given format. It is recommended that any calls to the
Inquire functions that the application needs to make to effect the copy from the clipboard
be made between the call to XmClipboardStartRetrieve and the first call to XmClipboard-
Retrieve. This way, the application does not need to call XmClipboardLock and XmClipboard-
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.
Specifies the name of a format in which the data is stored on the clipboard.
buffer Specifies the buffer to which the application wants the clipboard to copy the
data. The function allocates space to hold the data returned into the buffer.
The application is responsible for managing this allocated space. The applica-
tion can recover this allocated space by calling XtFree.
length Specifies the length of the application buffer.
num_bytes Specifies the number of bytes of data copied into the application buffer.
Specifies the private data stored with the data item by the application that
placed the data item on the clipboard. If the application did not store private
data with the data item, this argument returns 0 (zero).
The function was successful.
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.
The data returned is truncated because the user did not provide a buffer large
enough to hold the data.
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.
XmClipboardEndRetrieve(3), XmClipboardLock(3), XmClipboardStartCopy(3), XmClipboard-
StartRetrieve(3), and XmClipboardUnlock(3).
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