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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Drawing.Imaging;
using System.Runtime.InteropServices;
namespace metafile
{
public partial class Form1 : Form
{
private Metafile metafile1;
private Graphics.EnumerateMetafileProc metafileDelegate;
private Point destPoint;
private Rectangle destRectangle, destRectangle1, destRectangle2, destRectangle3;
public Form1()
{
InitializeComponent();
metafile1 = new Metafile(@"C:\image.wmf");
metafileDelegate = new Graphics.EnumerateMetafileProc(MetafileCallback);
destPoint = new Point(20, 10);
destRectangle = new Rectangle(20, 10, 100, 100);
destRectangle1 = new Rectangle(140, 10, 10, 30);
destRectangle2 = new Rectangle(220, 10, 300, 100);
destRectangle3 = new Rectangle(520, 10, 300, 700);
}
protected override void OnPaint(PaintEventArgs e)
{
e.Graphics.EnumerateMetafile(metafile1, destRectangle, metafileDelegate);
e.Graphics.EnumerateMetafile(metafile1, destRectangle1, metafileDelegate);
e.Graphics.EnumerateMetafile(metafile1, destRectangle2, metafileDelegate);
e.Graphics.EnumerateMetafile(metafile1, destRectangle3, metafileDelegate);
}
private bool MetafileCallback(
EmfPlusRecordType recordType,
int flags,
int dataSize,
IntPtr data,
PlayRecordCallback callbackData)
{
byte[] dataArray = null;
if (data != IntPtr.Zero)
{
// Copy the unmanaged record to a managed byte buffer
// that can be used by PlayRecord.
dataArray = new byte[dataSize];
Marshal.Copy(data, dataArray, 0, dataSize);
}
metafile1.PlayRecord(recordType, flags, dataSize, dataArray);
return true;
}
}
} |
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