通过 WIN32 API 实现嵌入程序窗体

写了一个不使用 COM, 而是通过 WIN32 API 实现的示例, 它把写字板程序嵌在了自己的一个面板中.

这么做可能没有实际意义, 因为两个程序之前没有进行有价值的交互, 这里仅仅是为了演示这么做到, 以下是详细注释过的主要源代码.

我把它封装到一个类中:

[csharp] view plaincopy

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Diagnostics;

using System.Runtime.InteropServices;

using System.Windows.Forms;

namespace System.Windows.Forms

{

class InsertWindow

{

/// <summary>

/// 将程序嵌入窗体

/// </summary>

/// <param name="pW">容器</param>

/// <param name="appname">程序名</param>

public InsertWindow(Panel pW,string appname)

{

this.pan = pW;

this.LoadEvent(appname);

pane();

}

~InsertWindow()

{

if (m_innerProcess!=null)

{

m_innerProcess.Dispose();

}

}

#region 函数和变量声明

/*

* 声明 Win32 API

*/

[DllImport("user32.dll")]

static extern IntPtr SetParent(IntPtr hWndChild,

IntPtr hWndNewParent

);

[DllImport("user32.dll")]

static extern Int32 GetWindowLong(IntPtr hWnd,

Int32 nIndex

);

[DllImport("user32.dll")]

static extern Int32 SetWindowLong(IntPtr hWnd,

Int32 nIndex,

Int32 dwNewLong

);

[DllImport("user32.dll")]

static extern Int32 SetWindowPos(IntPtr hWnd,

IntPtr hWndInsertAfter,

Int32 X,

Int32 Y,

Int32 cx,

Int32 cy,

UInt32 uFlags

);

/*

* 定义 Win32 常数

*/

const Int32 GWL_STYLE = -16;

const Int32 WS_BORDER = (Int32)0x00800000L;

const Int32 WS_THICKFRAME = (Int32)0x00040000L;

const Int32 SWP_NOMOVE = 0x0002;

const Int32 SWP_NOSIZE = 0x0001;

const Int32 SWP_NOZORDER = 0x0004;

const Int32 SWP_FRAMECHANGED = 0x0020;

const Int32 SW_MAXIMIZE = 3;

IntPtr HWND_NOTOPMOST = new IntPtr(-2);

// 目标应用程序的进程.

Process m_innerProcess = null;

#endregion

#region 容器

private Panel pan = null;

public Panel panel1

{

set { pan = value; }

get { return pan; }

}

private void pane()

{

panel1.Anchor = AnchorStyles.Left | AnchorStyles.Top |

AnchorStyles.Right | AnchorStyles.Bottom;

panel1.Resize += new EventHandler(panel1_Resize);

}

private void panel1_Resize(object sender, EventArgs e)

{

// 设置目标应用程序的窗体样式.

IntPtr innerWnd = m_innerProcess.MainWindowHandle;

SetWindowPos(innerWnd, IntPtr.Zero, 0, 0,

panel1.ClientSize.Width, panel1.ClientSize.Height,

SWP_NOZORDER);

}

#endregion

#region 相应事件

private void LoadEvent(string appFile)

{

// 启动目标应用程序.

m_innerProcess = Process.Start(appFile);

m_innerProcess.StartInfo.WindowStyle = ProcessWindowStyle.Hidden; //隐藏

// 等待, 直到那个程序已经完全启动.

m_innerProcess.WaitForInputIdle();

// 目标应用程序的主窗体.

IntPtr innerWnd = m_innerProcess.MainWindowHandle;

// 设置目标应用程序的主窗体的父亲(为我们的窗体).

SetParent(innerWnd, panel1.Handle);

// 除去窗体边框.

Int32 wndStyle = GetWindowLong(innerWnd, GWL_STYLE);

wndStyle &= ~WS_BORDER;

wndStyle &= ~WS_THICKFRAME;

SetWindowLong(innerWnd, GWL_STYLE, wndStyle);

SetWindowPos(innerWnd, IntPtr.Zero, 0, 0, 0, 0,

SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER | SWP_FRAMECHANGED);

// 在Resize事件中更新目标应用程序的窗体尺寸.

panel1_Resize(panel1, null);

}

#endregion

}

}

然后在 窗口的 load事件中 加入

详细代码 如下:

[csharp] view plaincopy

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using System.Runtime;

using System.Runtime.InteropServices;

using System.Diagnostics;

namespace 将程序窗口嵌入到任务栏中

{

public partial class Form1 : Form

{

private System.Windows.Forms.Panel panel1;

public Form1()

{

InitializeComponent();

this.panel1 = new System.Windows.Forms.Panel();

this.SuspendLayout();

//

// panel1

//

this.panel1.Dock = System.Windows.Forms.DockStyle.Fill;

this.panel1.Location = new System.Drawing.Point(0, 0);

this.panel1.Name = "panel1";

this.panel1.Size = new System.Drawing.Size(292, 273);

this.panel1.TabIndex = 0;

this.Controls.Add(this.panel1);

Load += new EventHandler(Form1_Load);

}

private void Form1_Load(object sender, EventArgs e)

{

//string sPath = Environment.GetEnvironmentVariable("windir");//获取系统变量 windir(windows)

const string appFile =

"C:\\Program Files\\Windows NT\\Accessories\\wordpad.exe";

InsertWindow insertwin = new InsertWindow(panel1, appFile);

}

}

}