nhờ dịch code C# sang C++

[minh255]

using System;
using System.Drawing;
using System.Drawing.Imaging;
using System.Windows.Forms;
using System.Data;
using System.Collections;
using System.ComponentModel;
using System.Runtime.InteropServices;
using System.IO;
using System.Threading;
using DexterLib;


namespace ImageExtractor
{
public partial class ExportFrame : Form
{
public ExportFrame()
{
InitializeComponent();
}
string fileName; //used to save the movie file name
string storagePath = Application.StartupPath + "\\tmp\\"; //used for the path where we save files
MediaDetClass md; //needed to extract pictures
static int counter = 0; //to generate different file names
float interval = 1.0f; //default time interval
int maxFrame = 0;
string temp = "";
int kk = 0;

private void button2_Click(object sender, EventArgs e)
{
OpenFileDialog dlg = new OpenFileDialog();
kk = 0;
if (dlg.ShowDialog() == DialogResult.OK)
{
try
{
fileName = dlg.FileName;
this.Text = Path.GetFileName(dlg.FileName);

//create the MediaDetClass and set its properties
md = new MediaDetClass();
md.Filename = fileName;
md.CurrentStream = 0;
int len = (int)md.StreamLength;
maxFrame = len * 24;
//fix a few Gui stuff
label1.Text = "Frame: " + maxFrame.ToString();
//make sure we have a unique name then call WriteBitmapBits to
//a file then use it to fill the picture box
counter++;
string fBitmapName = storagePath + counter.ToString() + ".bmp";
md.WriteBitmapBits(0, 320, 240, fBitmapName);
pictureBox1.Image = new Bitmap(fBitmapName);
temp = fBitmapName;
kk++;
}
catch (Exception) { MessageBox.Show("Coulnd't open movie file"); }
}
}
class ScanThread
{
MediaDetClass md;
string fileName;
string storagePath;
float interval;
public Thread t;
public ScanThread(string s, string f, float ival)
{
storagePath = s;
fileName = f;
interval = ival;
t = new Thread(new ThreadStart(this.Scan));
t.Start();
}
void Scan()
{
md = new MediaDetClass();
md.Filename = fileName;
md.CurrentStream = 0;
int len = (int)md.StreamLength * 24;
int j = -1;
float k = 0.0f;
float l = 0.1f;
for (int i = 0; i < len; i++)
{
j++;
counter++;
string fBitmapName = storagePath + Path.GetFileNameWithoutExtension(fileName)
+ "_" + j.ToString();
md.WriteBitmapBits(k, 320, 240, fBitmapName + ".bmp");
k = k + l;
}
}
}
private void button1_Click(object sender, EventArgs e)
{

if (md == null) return;
if (kk == 0) return;
ScanThread st = new ScanThread(storagePath, fileName, interval);
do
{
Thread.Sleep(100);
} while (st.t.IsAlive);
label1.Text = "Export: DONE";

}

private void ExportFrame_FormClosing(object sender, FormClosingEventArgs e)
{

}
}
}