incubator-nuttx/libs/libnx/nxtk/nxtk_ishidden.c

74 lines
3.0 KiB
C

/****************************************************************************
* libs/libnx/nxtk/nxtk_ishidden.c
*
* Copyright (C) 2019 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <nuttx/nx/nx.h>
#include <nuttx/nx/nxbe.h>
#include <nuttx/nx/nxtk.h>
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: nxtk_ishidden
*
* Description:
* Return true if the window is hidden.
*
* NOTE: There will be a delay between the time that the visibility of
* the window is changed via nxtk_setvisibily() before that new setting is
* reported by nxtk_ishidden(). nxtk_synch() may be used if temporal
* synchronization is required.
*
* Input Parameters:
* hfwnd - The window to be queried
*
* Returned Value:
* True: the window is hidden, false: the window is visible
*
****************************************************************************/
bool nxtk_ishidden(NXTKWINDOW hfwnd)
{
FAR struct nxbe_window_s *wnd = (FAR struct nxbe_window_s *)hfwnd;
return NXBE_ISHIDDEN(wnd);
}