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