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 plain​​​​copy​​

1. 1. 
      
2. using System;
3. using System.Collections.Generic;
4. using System.Linq;
5. using System.Text;
6. using System.Diagnostics;
7. using System.Runtime.InteropServices;
8. using System.Windows.Forms;
9. namespace System.Windows.Forms
10. {
11. class InsertWindow
12. {
13. /// <summary>
14. /// 将程序嵌入窗体
15. /// </summary>
16. /// <param name="pW">容器</param>
17. /// <param name="appname">程序名</param>
18. public InsertWindow(Panel pW,string appname)
19. {
20. this.pan = pW;
21. this.LoadEvent(appname);
22. pane();
23. }
24. 
    
25. ~InsertWindow()
26. {
27. if (m_innerProcess!=null)
28. {
29. m_innerProcess.Dispose();
30. }
31. }
32. 
    
33. #region 函数和变量声明
34. /*
35. * 声明 Win32 API
36. */
37. 
    
38. [DllImport("user32.dll")]
39. static extern IntPtr SetParent(IntPtr hWndChild,
40. IntPtr hWndNewParent
41. );
42. 
    
43. [DllImport("user32.dll")]
44. static extern Int32 GetWindowLong(IntPtr hWnd,
45. Int32 nIndex
46. );
47. 
    
48. [DllImport("user32.dll")]
49. static extern Int32 SetWindowLong(IntPtr hWnd,
50. Int32 nIndex,
51. Int32 dwNewLong
52. );
53. 
    
54. [DllImport("user32.dll")]
55. static extern Int32 SetWindowPos(IntPtr hWnd,
56. IntPtr hWndInsertAfter,
57. Int32 X,
58. Int32 Y,
59. Int32 cx,
60. Int32 cy,
61. UInt32 uFlags
62. );
63. 
    
64. /*
65. * 定义 Win32 常数
66. */
67. const Int32 GWL_STYLE = -16;
68. const Int32 WS_BORDER = (Int32)0x00800000L;
69. const Int32 WS_THICKFRAME = (Int32)0x00040000L;
70. 
    
71. const Int32 SWP_NOMOVE = 0x0002;
72. const Int32 SWP_NOSIZE = 0x0001;
73. const Int32 SWP_NOZORDER = 0x0004;
74. const Int32 SWP_FRAMECHANGED = 0x0020;
75. 
    
76. const Int32 SW_MAXIMIZE = 3;
77. IntPtr HWND_NOTOPMOST = new IntPtr(-2);
78. 
    
79. // 目标应用程序的进程.
80. Process m_innerProcess = null;
81. #endregion
82. 
    
83. #region 容器
84. private Panel pan = null;
85. public Panel panel1
86. {
87. set { pan = value; }
88. get { return pan; }
89. }
90. private void pane()
91. {
92. panel1.Anchor = AnchorStyles.Left | AnchorStyles.Top |
93. AnchorStyles.Right | AnchorStyles.Bottom;
94. panel1.Resize += new EventHandler(panel1_Resize);
95. }
96. private void panel1_Resize(object sender, EventArgs e)
97. {
98. // 设置目标应用程序的窗体样式.
99. 
    
100. IntPtr innerWnd = m_innerProcess.MainWindowHandle;
101. SetWindowPos(innerWnd, IntPtr.Zero, 0, 0,
102. panel1.ClientSize.Width, panel1.ClientSize.Height,
103. SWP_NOZORDER);
104. }
105. #endregion
106. 
     
107. #region 相应事件
108. private void LoadEvent(string appFile)
109. {
110. 
     
111. // 启动目标应用程序.
112. m_innerProcess = Process.Start(appFile);
113. m_innerProcess.StartInfo.WindowStyle = ProcessWindowStyle.Hidden; //隐藏
114. // 等待, 直到那个程序已经完全启动.
115. m_innerProcess.WaitForInputIdle();
116. 
     
117. // 目标应用程序的主窗体.
118. IntPtr innerWnd = m_innerProcess.MainWindowHandle;
119. 
     
120. // 设置目标应用程序的主窗体的父亲(为我们的窗体).
121. SetParent(innerWnd, panel1.Handle);
122. 
     
123. // 除去窗体边框.
124. Int32 wndStyle = GetWindowLong(innerWnd, GWL_STYLE);
125. wndStyle &= ~WS_BORDER;
126. wndStyle &= ~WS_THICKFRAME;
127. SetWindowLong(innerWnd, GWL_STYLE, wndStyle);
128. SetWindowPos(innerWnd, IntPtr.Zero, 0, 0, 0, 0,
129. SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER | SWP_FRAMECHANGED);
130. 
     
131. // 在Resize事件中更新目标应用程序的窗体尺寸.
132. panel1_Resize(panel1, null);
133. }
134. #endregion
135. }
136. 
     
137. 
     
138. }
     1. 
        

然后在 窗口的 load事件中 加入

详细代码 如下:

[csharp] ​​view plain​​​​copy​​

1. 1. 
      
2. using System;
3. using System.Collections.Generic;
4. using System.ComponentModel;
5. using System.Data;
6. using System.Drawing;
7. using System.Linq;
8. using System.Text;
9. using System.Windows.Forms;
10. using System.Runtime;
11. using System.Runtime.InteropServices;
12. using System.Diagnostics;
13. 
    
14. namespace 将程序窗口嵌入到任务栏中
15. {
16. public partial class Form1 : Form
17. {
18. private System.Windows.Forms.Panel panel1;
19. public Form1()
20. {
21. InitializeComponent();
22. this.panel1 = new System.Windows.Forms.Panel();
23. this.SuspendLayout();
24. //
25. // panel1
26. //
27. this.panel1.Dock = System.Windows.Forms.DockStyle.Fill;
28. this.panel1.Location = new System.Drawing.Point(0, 0);
29. this.panel1.Name = "panel1";
30. this.panel1.Size = new System.Drawing.Size(292, 273);
31. this.panel1.TabIndex = 0;
32. this.Controls.Add(this.panel1);
33. 
    
34. Load += new EventHandler(Form1_Load);
35. }
36. 
    
37. private void Form1_Load(object sender, EventArgs e)
38. {
39. //string sPath = Environment.GetEnvironmentVariable("windir");//获取系统变量 windir(windows)
40. const string appFile =
41. "C:\\Program Files\\Windows NT\\Accessories\\wordpad.exe";
42. InsertWindow insertwin = new InsertWindow(panel1, appFile);
43. 
    
44. }
45. 
    
46. 
    
47. }
48. }
    1.