96 lines
1.7 KiB
C++
96 lines
1.7 KiB
C++
/* fhandler_dev_clipboard: code to access /dev/clipboard
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Copyright 2000 Red Hat, Inc
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Written by Charles Wilson (cwilson@ece.gatech.edu)
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This file is part of Cygwin.
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This software is a copyrighted work licensed under the terms of the
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Cygwin license. Please consult the file "CYGWIN_LICENSE" for
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details. */
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#include "winsup.h"
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#include <stdio.h>
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#include <errno.h>
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#include "cygerrno.h"
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#include "fhandler.h"
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#include <windows.h>
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#include <wingdi.h>
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#include <winuser.h>
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static BOOL clipboard_eof; // NOT THREAD-SAFE
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fhandler_dev_clipboard::fhandler_dev_clipboard (const char *name)
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: fhandler_base (FH_CLIPBOARD, name)
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{
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set_cb (sizeof *this);
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clipboard_eof = false;
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}
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int
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fhandler_dev_clipboard::open (const char *, int flags, mode_t)
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{
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set_flags (flags);
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clipboard_eof = false;
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return 1;
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}
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int
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fhandler_dev_clipboard::write (const void *, size_t len)
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{
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return len;
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}
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int
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fhandler_dev_clipboard::read (void *ptr, size_t len)
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{
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HGLOBAL hglb;
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LPSTR lpstr;
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int ret;
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if (!clipboard_eof)
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{
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OpenClipboard(0);
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hglb = GetClipboardData(CF_TEXT);
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lpstr = (LPSTR) GlobalLock(hglb);
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if (len < sizeof (lpstr))
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{
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set_errno (EINVAL);
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GlobalUnlock (hglb);
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CloseClipboard ();
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return -1;
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}
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ret = snprintf((char *) ptr, len, "%s", lpstr);
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GlobalUnlock(hglb);
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CloseClipboard();
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set_errno (0);
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clipboard_eof = true;
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return ret;
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}
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else
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{
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return 0;
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}
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}
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off_t
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fhandler_dev_clipboard::lseek (off_t offset, int whence)
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{
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return 0;
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}
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int
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fhandler_dev_clipboard::close (void)
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{
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clipboard_eof = false;
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return 0;
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}
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void
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fhandler_dev_clipboard::dump ()
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{
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paranoid_printf("here, fhandler_dev_clipboard");
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}
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