VC++中如何使用Progress控件

liucc2012

Progress控件能让人们感受到一个应用程序执行的进度,在很多应用程序中都能用到它,但 通常只支持在单任务中,在Windows98/NT中文操作系统下,在VC++6.0环境下,利用线程编制了 一个非常小巧的应用程序来实现Progress控件的使用。它可以支持多线程,使用起来很方便。
以下是这个应用程序的源代码:

1. //ProgressDialog.h
   
2. class CProgressDialog : public CDialog
   
3. {
   
4. // Construction
   
5. public:
   
6. CProgressDialog(LPCSTR caption, BOOL
   
7. enableCancel=TRUE, CWnd* pParent = NULL);
   
8. // standard constructor
   
9. virtual ～CProgressDialog(void);
   
10. // Dialog Data
    
11. //{{AFX_DATA(CProgressDialog)
    
12. enum { IDD = IDD_PROGRESS_DIALOG };
    
13. CStatic
    
14. m_MessageStatic; //进程条标题
    
15. CButton m_CancelButton; //中止按钮控键
    
16. CProgressCtrl
    
17. m_ProgressCtrl;
    
18. //}}AFX_DATA
    
19. CString m_Caption;
    
20. 　 //对话框标题
    
21. BOOL m_EnableCancel; //中止按钮显示开关
    
22. BOOL m_IsCancel; //中止按钮是 否按下开关
    
23. HANDLE m_Thread;
    
24. 　 //线程句柄
    
25. static DWORD WINAPI ThreadProc(CProgressDialog* dlg); //静态线程
    
26. void SetProgress(int percent) //设置进程位置
    
27. { m_ProgressCtrl.SetPos(percent);}
    
28. void SetMessage (LPCSTR msg) //设置进程条标题
    
29. { m_MessageStatic.SetWindowText(msg);}
    
30. BOOL IsCancel(void)
    
31. { return m_IsCancel;}
    
32. virtual DWORD ProgressProc ()=0;//线程过程纯虚函数
    
33. // Overrides
    
34. // ClassWizard generated virtual function overrides
    
35. //{{AFX_VIRTUAL(CProgressDialog)
    
36. protected:
    
37. virtual void DoDataExchange(CDataExchange* pDX);
    
38. 　// DDX/DDV support
    
39. //}}AFX_VIRTUAL
    
40. // Implementation
    
41. protected:
    
42. // Generated message map functions
    
43. //{{AFX_MSG(CProgressDialog)
    
44. virtual BOOL OnInitDialog();
    
45. virtual void OnCancel();
    
46. virtual void OnOK();
    
47. //}}AFX_MSG
    
48. DECLARE_MESSAGE_MAP()
    
49. };
    
50. class CMyProgressDialog:public CProgressDialog {
    
51. public:
    
52. CMyProgressDialog (LPCSTR caption):CProgressDialog(caption) {}
    
53. virtual DWORD ProgressProc(); //继承过程
    
54. };
    
55. // ProgressDialog.cpp
    
56. #include "stdafx.h"
    
57. #include "ProgressTest.h"
    
58. #include "ProgressDialog.h"
    
59. #ifdef _DEBUG
    
60. #define new DEBUG_NEW
    
61. #undef THIS_FILE
    
62. static char THIS_FILE[] = __FILE__;
    
63. #endif
    
64. CProgressDialog::CProgressDialog(LPCSTR caption, BOOL enableCancel, CWnd* pParent /*=NULL*/) :
    
65. CDialog(CProgressDialog::IDD, pParent)
    
66. {
    
67. // {{AFX_DATA_INIT(CProgressDialog)
    
68. m_Caption=caption;
    
69. m_EnableCancel=enableCancel;
    
70. m_IsCancel=FALSE;
    
71. m_Thread=NULL;
    
72. //}}AFX_DATA_INIT
    
73. }
    
74. CProgressDialog::～CProgressDialog(void)
    
75. {
    
76. if (m_Thread) {
    
77. CloseHandle(m_Thread);
    
78. }}
    
79. void
    
80. CProgressDialog::DoDataExchange(CDataExchange* pDX)
    
81. {CDialog::DoDataExchange(pDX);
    
82. //{{AFX_DATA_MAP(CProgressDialog)
    
83. DDX_Control (pDX IDC_MESSAGE_STATIC, m_MessageStatic);
    
84. DDX_Control(pDX, IDCANCEL, m_CancelButton);
    
85. DDX_Control(pDX, IDC_PROGRESS, m_ProgressCtrl);
    
86. //}}AFX_DATA_MAP
    
87. }
    
88. BEGIN_MESSAGE_MAP (CProgressDialog, CDialog)
    
89. //{{AFX_MSG_MAP(CProgressDialog)
    
90. //}} AFX_MSG_MAP
    
91. END_MESSAGE_MAP()
    
92. // CProgressDialog message handlersBOOL CProgressDialog::OnInitDialog()
    
93. {
    
94. CDialog::OnInitDialog();
    
95. // TODO: Add extra initialization here
    
96. m_ProgressCtrl.SetRange(0, 100);
    
97. m_ProgressCtrl.SetPos(0);
    
98. SetWindowText(m_Caption);
    
99. if (! m_EnableCancel) {
    
100. m_CancelButton.ShowWindow(SW_HIDE);
     
101. }
     
102. DWORD threadID;
     
103. m_Thread=CreateThread(NULL, 0,
     
104. (LPTHREAD_START_ROUTINE) CProgressDialog::Thread
     
105. Proc,(LPVOID)this,0,&threadID);
     
106. return TRUE; // return TRUE unless you set the focus to a control
     
107. 　 // EXCEPTION: OCX Property Pages should return
     
108. FALSE
     
109. }
     
110. DWORD WINAPI
     
111. CProgressDialog::ThreadProc(CProgressDialog* dlg)
     
112. {DWORD ret=dlg- >ProgressProc();
     
113. dlg->PostMessage(WM_COMMAND, IDOK);
     
114. return ret;
     
115. }
     
116. void CProgressDialog::OnCancel()
     
117. {
     
118. // TODO: Add extra cleanup here
     
119. if (m_EnableCancel) m_IsCancel=TRUE;
     
120. }
     
121. void CProgressDialog::OnOK()
     
122. {
     
123. // TODO: Add extra validation here
     
124. WaitForSingleObject(m_Thread, INFINITE);
     
125. CDialog::OnOK();
     
126. }DWORD CMyProgressDialog::ProgressProc()
     
127. {SetMessage("Progress...");
     
128. for (int i=0;i<100;i++) {
     
129. 　if (IsCancel()) break;
     
130. Sleep(100);
     
131. SetProgress(i);
     
132. }
     
133. return 0;
     
134. }
     
135. 
     

复制代码

只需在应用Progress控 件的地方调用CMyProgressDialog类的对象即可。可根据不同的应用程序修改DWORD CMyProgressDialog::ProgressProc()这个继承函数的函数体来适应相应的程序。

kukuf621

Make,看的眼疼