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author | William Joye <wjoye@cfa.harvard.edu> | 2016-10-18 17:31:55 (GMT) |
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committer | William Joye <wjoye@cfa.harvard.edu> | 2016-10-18 17:31:55 (GMT) |
commit | 39e34335fb6eb6eaf2b7ee51ccf172006dd46fbb (patch) | |
tree | 8e5374666c7f0b3017176ec9d6e6b6eae0dcabac /tk8.6/doc/Clipboard.3 | |
parent | 066971b1e6e77991d9161bb0216a63ba94ea04f9 (diff) | |
parent | 6b095f3c8521ca7215e6ff5dcbada52b197ef7d0 (diff) | |
download | blt-39e34335fb6eb6eaf2b7ee51ccf172006dd46fbb.zip blt-39e34335fb6eb6eaf2b7ee51ccf172006dd46fbb.tar.gz blt-39e34335fb6eb6eaf2b7ee51ccf172006dd46fbb.tar.bz2 |
Merge commit '6b095f3c8521ca7215e6ff5dcbada52b197ef7d0' as 'tk8.6'
Diffstat (limited to 'tk8.6/doc/Clipboard.3')
-rw-r--r-- | tk8.6/doc/Clipboard.3 | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/tk8.6/doc/Clipboard.3 b/tk8.6/doc/Clipboard.3 new file mode 100644 index 0000000..3087777 --- /dev/null +++ b/tk8.6/doc/Clipboard.3 @@ -0,0 +1,77 @@ +'\" +'\" Copyright (c) 1994 The Regents of the University of California. +'\" Copyright (c) 1994-1996 Sun Microsystems, Inc. +'\" +'\" See the file "license.terms" for information on usage and redistribution +'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES. +'\" +.TH Tk_ClipboardClear 3 4.0 Tk "Tk Library Procedures" +.so man.macros +.BS +.SH NAME +Tk_ClipboardClear, Tk_ClipboardAppend \- Manage the clipboard +.SH SYNOPSIS +.nf +\fB#include <tk.h>\fR +.sp +int +\fBTk_ClipboardClear\fR(\fIinterp, tkwin\fR) +.sp +int +\fBTk_ClipboardAppend\fR(\fIinterp, tkwin, target, format, buffer\fR) +.SH ARGUMENTS +.AS Tk_ClipboardClear tkwin +.AP Tcl_Interp *interp in +Interpreter to use for reporting errors. +.AP Tk_Window tkwin in +Window that determines which display's clipboard to manipulate. +.AP Atom target in +Conversion type for this clipboard item; has same meaning as +\fItarget\fR argument to \fBTk_CreateSelHandler\fR. +.AP Atom format in +Representation to use when data is retrieved; has same meaning as +\fIformat\fR argument to \fBTk_CreateSelHandler\fR. +.AP "const char" *buffer in +Null terminated string containing the data to be appended to the clipboard. +.BE +.SH DESCRIPTION +.PP +These two procedures manage the clipboard for Tk. +The clipboard is typically managed by calling \fBTk_ClipboardClear\fR +once, then calling \fBTk_ClipboardAppend\fR to add data for any +number of targets. +.PP +\fBTk_ClipboardClear\fR claims the CLIPBOARD selection and frees any +data items previously stored on the clipboard in this application. +It normally returns \fBTCL_OK\fR, but if an error occurs it returns +\fBTCL_ERROR\fR and leaves an error message in interpreter +\fIinterp\fR's result. +\fBTk_ClipboardClear\fR must be called before a sequence of +\fBTk_ClipboardAppend\fR calls can be issued. +.PP +\fBTk_ClipboardAppend\fR appends a buffer of data to the clipboard. +The first buffer for a given \fItarget\fR determines the \fIformat\fR +for that \fItarget\fR. +Any successive appends for that \fItarget\fR must have +the same format or an error will be returned. +\fBTk_ClipboardAppend\fR returns \fBTCL_OK\fR if the buffer is +successfully copied onto the clipboard. If the clipboard is not +currently owned by the application, either +because \fBTk_ClipboardClear\fR has not been called or because +ownership of the clipboard has changed since the last call to +\fBTk_ClipboardClear\fR, +\fBTk_ClipboardAppend\fR returns \fBTCL_ERROR\fR and leaves an error +message in the result of interpreter \fIinterp\fR. +.PP +In order to guarantee atomicity, no event handling should occur +between \fBTk_ClipboardClear\fR and the following +\fBTk_ClipboardAppend\fR calls (otherwise someone could retrieve +a partially completed clipboard or claim ownership away from +this application). +.PP +\fBTk_ClipboardClear\fR may invoke callbacks, including arbitrary +Tcl scripts, as a result of losing the CLIPBOARD selection, so +any calling function should take care to be re-entrant at the point +\fBTk_ClipboardClear\fR is invoked. +.SH KEYWORDS +append, clipboard, clear, format, type |