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[c#] 通過 WIN32 API 實(shí)現(xiàn)嵌入程序窗體

寫了一個(gè)不使用 COM, 而是通過 WIN32 API 實(shí)現(xiàn)的示例, 它把寫字板程序嵌在了自己的一個(gè)面板中.

這么做可能沒有實(shí)際意義, 因?yàn)閮蓚€(gè)程序之前沒有進(jìn)行有價(jià)值的交互, 這里僅僅是為了演示這么做到, 以下是詳細(xì)注釋過的主要源代碼.

我把它封裝到一個(gè)類中:

[csharp] view plain copy ?

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>
/// 將程序嵌入窗體
/// </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 函數(shù)和變量聲明
/*
* 聲明 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
);
/*
* 定義 Win32 常數(shù)
*/
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);
// 目標(biāo)應(yīng)用程序的進(jìn)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)
{
// 設(shè)置目標(biāo)應(yīng)用程序的窗體樣式.
IntPtr innerWnd = m_innerProcess.MainWindowHandle;
SetWindowPos(innerWnd, IntPtr.Zero, 0, 0,
panel1.ClientSize.Width, panel1.ClientSize.Height,
SWP_NOZORDER);
}
#endregion
#region 相應(yīng)事件
private void LoadEvent(string appFile)
{
// 啟動(dòng)目標(biāo)應(yīng)用程序.
m_innerProcess = Process.Start(appFile);
m_innerProcess.StartInfo.WindowStyle = ProcessWindowStyle.Hidden; //隱藏
// 等待, 直到那個(gè)程序已經(jīng)完全啟動(dòng).
m_innerProcess.WaitForInputIdle();
// 目標(biāo)應(yīng)用程序的主窗體.
IntPtr innerWnd = m_innerProcess.MainWindowHandle;
// 設(shè)置目標(biāo)應(yīng)用程序的主窗體的父親(為我們的窗體).
SetParent(innerWnd, panel1.Handle);
// 除去窗體邊框.
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事件中更新目標(biāo)應(yīng)用程序的窗體尺寸.
panel1_Resize(panel1, null);
}
#endregion
}
}

然后在窗口的 load事件中加入

詳細(xì)代碼如下:

[csharp] view plain copy ?

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 將程序窗口嵌入到任務(wù)欄中
{
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");//獲取系統(tǒng)變量 windir(windows)
const string appFile =
"C:\\Program Files\\Windows NT\\Accessories\\wordpad.exe";
InsertWindow insertwin = new InsertWindow(panel1, appFile);
}
}
}

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[c#] 通過 WIN32 API 實(shí)現(xiàn)嵌入程序窗體