public static int fnFGA_img_root_realloc(
	FHANDLE himg,
	f_imgtype type,
	int channels,
	int width,
	int height
)

Public Shared Function fnFGA_img_root_realloc ( 
	himg As FHANDLE,
	type As f_imgtype,
	channels As Integer,
	width As Integer,
	height As Integer
) As Integer

//    $Revision: 1.2 $

using System;
using System.Collections.Generic;
using System.Text;
using System.Diagnostics;
using fvalgcli;

namespace TC
{
    public partial class FIE
    {
        /// <summary>
        /// ルート画像の変更.
        /// </summary>
        [FvPluginExecute]
        public void fnFGA_img_root_realloc()
        {
            int status = (int)f_err.F_ERR_NONE;

            FHANDLE hroot = FHANDLE.Zero;

            int type = (int)f_imgtype.F_IMG_UC8;
            int channels = 3;
            int width = 640;
            int height = 480;

            try
            {
                // root 画像生成.
                hroot = fga.fnFGA_img_root_alloc(type, channels, width, height);
                if (hroot == IntPtr.Zero)
                    throw new FvException(f_err.F_ERR_NOMEMORY, "エラーが発生しました。");

                // root 画像変更.
                int type_re = (int)f_imgtype.F_IMG_UI32;
                int channels_re = 1;
                int width_re = 800;
                int height_re = 600;
                status = fga.fnFGA_img_root_realloc(hroot, type_re, channels_re, width_re, height_re);
                if (status != (int)f_err.F_ERR_NONE)
                    throw new FvException(status, "エラーが発生しました。");

                // 画像情報取得.
                {
                    int _channels = fga.fnFGA_img_get_channels(hroot);
                    int _type = fga.fnFGA_img_get_type(hroot);
                    int _width = fga.fnFGA_img_get_width(hroot);
                    int _height = fga.fnFGA_img_get_height(hroot);

                    if (channels_re != _channels)
                        throw new FvException(f_err.F_ERR_INVALID_IMAGE, "チャネル数:期待値と一致しません.");
                    if (type_re != _type)
                        throw new FvException(f_err.F_ERR_INVALID_IMAGE, "タイプ:期待値と一致しません.");
                    if (width_re != _width)
                        throw new FvException(f_err.F_ERR_INVALID_IMAGE, "幅:期待値と一致しません.");
                    if (height_re != _height)
                        throw new FvException(f_err.F_ERR_INVALID_IMAGE, "高さ:期待値と一致しません.");
                }
            }
            finally
            {
                // オブジェクトの開放.
                hroot.Dispose();
            }
        }
    }
}