public static FHANDLE fnFGA_img_child_alloc_single_ch(
	FHANDLE hroot,
	int ch,
	int offset_x,
	int offset_y,
	int width,
	int height
)

Public Shared Function fnFGA_img_child_alloc_single_ch ( 
	hroot As FHANDLE,
	ch As Integer,
	offset_x As Integer,
	offset_y As Integer,
	width As Integer,
	height As Integer
) As FHANDLE

//    $Revision: 1.2 $

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

namespace TC
{
    public partial class FIE
    {
        /// <summary>
        /// チャイルド画像の確保(単一チャネル割り当て版).
        /// </summary>
        [FvPluginExecute]
        public void fnFGA_img_child_alloc_single_ch()
        {
            FHANDLE hroot = FHANDLE.Zero;
            FHANDLE hchild = FHANDLE.Zero;

            int type = (int)f_imgtype.F_IMG_UC8;
            int channels = 3;
            int width = 640;
            int height = 480;
            int child_channel = 1;
            int offset_x = 10;
            int offset_y = 20;
            int child_width = 128;
            int child_height = 64;

            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。");

                // child 画像生成.
                hchild = fga.fnFGA_img_child_alloc_single_ch(hroot, child_channel, offset_x, offset_y, child_width, child_height);
                if (hchild == IntPtr.Zero)
                    throw new FvException(f_err.F_ERR_NOMEMORY, "エラーが発生しました。");

                // パラメータ取得.
                {
                    int _channels = fga.fnFGA_img_get_channels(hchild);
                    int _type = fga.fnFGA_img_get_type(hchild);
                    int _width = fga.fnFGA_img_get_width(hchild);
                    int _height = fga.fnFGA_img_get_height(hchild);
                    SIZE_T _step = fga.fnFGA_img_get_step(hchild);

                    Console.WriteLine("_channels={0}", _channels);
                    Console.WriteLine("_type={0}", _type);
                    Console.WriteLine("_width={0}", _width);
                    Console.WriteLine("_height={0}", _height);
                    Console.WriteLine("_step={0}", _step.ToInt64());

                    if (1 != _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 != _type)
                        throw new FvException(f_err.F_ERR_INVALID_IMAGE, "タイプ:期待値と一致しません.");
                    if (child_width != _width)
                        throw new FvException(f_err.F_ERR_INVALID_IMAGE, "幅:期待値と一致しません.");
                    if (child_height != _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();
                hchild.Dispose();
            }
        }
    }
}