/***************************************************************************
 * Copyright (c) 2024 Microsoft Corporation 
 * 
 * This program and the accompanying materials are made available under the
 * terms of the MIT License which is available at
 * https://opensource.org/licenses/MIT.
 * 
 * SPDX-License-Identifier: MIT
 **************************************************************************/


/**************************************************************************/
/**************************************************************************/
/**                                                                       */
/** GUIX Component                                                        */
/**                                                                       */
/**   Scroll Wheel Management (Generic Scroll Wheel)                      */
/**                                                                       */
/**************************************************************************/

#define GX_SOURCE_CODE


/* Include necessary system files.  */

#include "gx_api.h"
#include "gx_scroll_wheel.h"

/* Bring in externs for caller checking code.  */
GX_CALLER_CHECKING_EXTERNS

/**************************************************************************/
/*                                                                        */
/*  FUNCTION                                               RELEASE        */
/*                                                                        */
/*    _gxe_generic_scroll_wheel_children_position         PORTABLE C      */
/*                                                           6.1.7        */
/*  AUTHOR                                                                */
/*                                                                        */
/*    Ting Zhu, Microsoft Corporation                                     */
/*                                                                        */
/*  DESCRIPTION                                                           */
/*                                                                        */
/*    This function checks for errors in the generic scroll wheel         */
/*    children position function call                                     */
/*                                                                        */
/*  INPUT                                                                 */
/*                                                                        */
/*    wheel                                 Generic scroll wheel control   */
/*                                            block                       */
/*                                                                        */
/*  OUTPUT                                                                */
/*                                                                        */
/*    status                                Completion status             */
/*                                                                        */
/*  CALLS                                                                 */
/*                                                                        */
/*    _gx_generic_scroll_wheel_children_position                          */
/*                                          Actual scroll wheel children  */
/*                                            position function call      */
/*                                                                        */
/*  CALLED BY                                                             */
/*                                                                        */
/*    Application Code                                                    */
/*                                                                        */
/*  RELEASE HISTORY                                                       */
/*                                                                        */
/*    DATE              NAME                      DESCRIPTION             */
/*                                                                        */
/*  06-02-2021     Ting Zhu                 Initial Version 6.1.7         */
/*                                                                        */
/**************************************************************************/
UINT _gxe_generic_scroll_wheel_children_position(GX_GENERIC_SCROLL_WHEEL *wheel)
{
UINT status;

    /* Check for appropriate caller.  */
    GX_INIT_AND_THREADS_CALLER_CHECKING

    if (!wheel)
    {
        return(GX_PTR_ERROR);
    }

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

    /* Call actual generic scroll wheel children position call. */
    status = _gx_generic_scroll_wheel_children_position(wheel);

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