/**************************************************************************/
/*                                                                        */
/*       Copyright (c) Microsoft Corporation. All rights reserved.        */
/*                                                                        */
/*       This software is licensed under the Microsoft Software License   */
/*       Terms for Microsoft Azure RTOS. Full text of the license can be  */
/*       found in the LICENSE file at https://aka.ms/AzureRTOS_EULA       */
/*       and in the root directory of this software.                      */
/*                                                                        */
/**************************************************************************/


/**************************************************************************/
/**************************************************************************/
/**                                                                       */
/** GUIX Component                                                        */
/**                                                                       */
/**   Widget Management (Widget)                                          */
/**                                                                       */
/**************************************************************************/

#define GX_SOURCE_CODE


/* Include necessary system files.  */

#include "gx_api.h"
#include "gx_widget.h"

/**************************************************************************/
/*                                                                        */
/*  FUNCTION                                               RELEASE        */
/*                                                                        */
/*    _gxe_widget_top_visible_child_find                  PORTABLE C      */
/*                                                           6.1          */
/*  AUTHOR                                                                */
/*                                                                        */
/*    Kenneth Maxwell, Microsoft Corporation                              */
/*                                                                        */
/*  DESCRIPTION                                                           */
/*                                                                        */
/*    This function checks for errors in the                              */
/*    gx_widget_top_visible_child_find function call.                     */
/*                                                                        */
/*  INPUT                                                                 */
/*                                                                        */
/*    parent                               Pointer to parent widget to    */
/*                                            start search from           */
/*    return_widget                         Pointer to destination for    */
/*                                            found widget                */
/*                                                                        */
/*  OUTPUT                                                                */
/*                                                                        */
/*    status                                Completion status             */
/*                                                                        */
/*  CALLS                                                                 */
/*                                                                        */
/*    _gx_widget_top_visible_child_find     Actual                        */
/*                                            widget_previous_sibling_get */
/*                                            function.                   */
/*                                                                        */
/*  CALLED BY                                                             */
/*                                                                        */
/*    Application Code                                                    */
/*                                                                        */
/*  RELEASE HISTORY                                                       */
/*                                                                        */
/*    DATE              NAME                      DESCRIPTION             */
/*                                                                        */
/*  05-19-2020     Kenneth Maxwell          Initial Version 6.0           */
/*  09-30-2020     Kenneth Maxwell          Modified comment(s),          */
/*                                            resulting in version 6.1    */
/*                                                                        */
/**************************************************************************/
UINT _gxe_widget_top_visible_child_find(GX_WIDGET *parent, GX_WIDGET **return_widget)
{
UINT status;
    /* Check for invalid input pointers.  */
    if ((parent == GX_NULL) || (return_widget == GX_NULL))
    {
        return(GX_PTR_ERROR);
    }

    /* Check for invalid widget.  */
    if (parent -> gx_widget_type == 0)
    {
        return(GX_INVALID_WIDGET);
    }

    /* Call actual widget find function.  */
    status = _gx_widget_top_visible_child_find(parent, return_widget);

    /* Return successful completion.  */
    return(status);
}