[高手救急]关于DirectDraw，这段代码就是运行不过

[Tenner]

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using Microsoft.DirectX.DirectDraw;

namespace DirectDrawTest
{
/// <summary>
/// Form1 的摘要说明。
/// </summary>
public class Form1 : System.Windows.Forms.Form
{
/// <summary>
/// 必需的设计器变量。
/// </summary>
private System.ComponentModel.Container components = null;

public Form1()
{
//
// Windows 窗体设计器支持所必需的
//
InitializeComponent();

//
// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
//
}

/// <summary>
/// 清理所有正在使用的资源。
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}

#region Windows 窗体设计器生成的代码
/// <summary>
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
/// 此方法的内容。
/// </summary>
private void InitializeComponent()
{
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.ClientSize = new System.Drawing.Size(432, 338);
this.Name = "Form1";
this.Text = "Form1";
this.Resize += new System.EventHandler(this.Form1_Resize);
this.Load += new System.EventHandler(this.Form1_Load);
this.Paint += new System.Windows.Forms.PaintEventHandler(this.Form1_Paint);

}
#endregion

// DirectDraw 设备
private Device dev = new Device(CreateFlags.Default);

// 两个表面
private SurfaceDescription sdPrimary = null;
private SurfaceDescription sdSecondary = null;
private Surface surPrimary = null;
private Surface surSecondary = null;

// 一个后台表面
private SurfaceDescription sdImage = null;
private Surface surImage = null;

// 表面的矩形区域
private Rectangle rPrimary, rSecondary, rImage;

// Image
private Bitmap bmp;

/// <summary>
/// 应用程序的主入口点。
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new Form1());
}

private void InitDDraw()
{
// Set Cooperative Level
dev.SetCooperativeLevel(this, CooperativeLevelFlags.Normal);

// Primary Surface
sdPrimary = new SurfaceDescription();
sdPrimary.SurfaceCaps.PrimarySurface = true;
sdPrimary.SurfaceCaps.Flip = true;
sdPrimary.BackBufferCount = 1;

// !!!! 运行到这句就出错，提示是“应用程序错误”
surPrimary = new Surface(sdPrimary, dev);

// Secondary Surface
sdSecondary = new SurfaceDescription();
sdSecondary.SurfaceCaps.BackBuffer = true;

surSecondary = surPrimary.GetAttachedSurface(sdSecondary.SurfaceCaps);
surSecondary.ForeColor = Color.White;
surSecondary.FontTransparency = true;

// Image
bmp = (Bitmap)Image.FromFile(@"E:\image.jpg");
}

private void LoadSurface()
{
sdImage = new SurfaceDescription();
sdImage.SurfaceCaps.OffScreenPlain = true;
sdImage.Width = surSecondary.SurfaceDescription.Width;
sdImage.Height = surSecondary.SurfaceDescription.Height;

surImage = new Surface(bmp, sdImage, dev);

rPrimary.Width = surPrimary.SurfaceDescription.Width;
rPrimary.Height = surPrimary.SurfaceDescription.Height;
rSecondary.Width = surSecondary.SurfaceDescription.Width;
rSecondary.Height = surSecondary.SurfaceDescription.Height;
rImage.Width = surImage.SurfaceDescription.Width;
rImage.Height = surImage.SurfaceDescription.Height;
}

private void draw()
{
if (surSecondary == null)
{
return;
}
surSecondary.DrawFast(0, 0, surImage, rImage, DrawFastFlags.Wait);
surPrimary.Flip(null, FlipFlags.NoVSync);
}

private void Form1_Load(object sender, System.EventArgs e)
{
InitDDraw();
LoadSurface();
}

private void Form1_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
{
draw();
}

private void Form1_Resize(object sender, System.EventArgs e)
{
draw();
}
}
}

为什么？

[Tenner]

完全没人理....郁闷

[spz1755]

帮你顶

[Tenner]

顶，高手帮忙啊