C/C++學習：鍵盤記錄程序代碼

鍵盤記錄程序

主程序：

就是基於對話框的框架，加個個OnHookKey函數，

1. long CMainDialog::OnHookKey(WPARAM wParam, LPARAM lParam) //處理自定義消息
2. {
3. char szKey[80]={0};
4. GetKeyNameText(lParam, szKey, 80);
5. CString strItem;
6. strItem.Format("按鍵:%s\r\n", szKey);
7. CString strEdit;
8. GetDlgItem(IDC_KEYMSG)->GetWindowText(strEdit);
9. GetDlgItem(IDC_KEYMSG)->SetWindowTextA(strEdit+strItem);
10. ::MessageBeep(MB_OK);
11. return 0;
12. }

在初始化時，調用DLL中的：

1. SetKeyHook(TRUE, 0, m_hWnd)

1. SetKeyHook(FALSE);

1. #include <afxwin.h>
2. #define HM_KEY WM_USER+100
3. //CMyApp
4. class CMyApp:public CWinApp
5. {
6. public:
7. BOOL InitInstance();
8. };
10. //CMyDialog
11. class CMainDialog:public CDialog
12. {
13. public:
14. CMainDialog(CWnd* pParentWnd = NULL);
16. protected:
17. virtual BOOL OnInitDialog( );
18. afx_msg void OnCancel();
19. afx_msg long OnHookKey(WPARAM wParam, LPARAM lParam); //處理自定義消息的聲明
21. DECLARE_MESSAGE_MAP()
22. };

1. #include "resource.h"
2. #include "KeyHookApp.h"
3. #include "KeyHook.h"
4. #pragma comment(lib,"KeyHook.lib")
6. CMyApp theApp;
8. BOOL CMyApp::InitInstance()
9. {
10. CMainDialog dlg;
11. m_pMainWnd = &dlg; //給m_pMainWnd 主窗口
12. dlg.DoModal();
13. return FALSE; //不進入消息循環
14. }
17. BEGIN_MESSAGE_MAP(CMainDialog, CDialog)
18. ON_MESSAGE(HM_KEY, OnHookKey) //自定義消息
19. END_MESSAGE_MAP()
21. //CMainDialog
22. CMainDialog::CMainDialog(CWnd* pParentWnd):CDialog(IDD_MAIN, pParentWnd)
23. {
25. }
26. BOOL CMainDialog::OnInitDialog( )
27. {
28. CDialog::OnInitDialog();
29. if (!SetKeyHook(TRUE, 0, m_hWnd))
30. {
31. MessageBox("安裝鉤子失敗");
32. }
34. return TRUE;
35. }
36. //處理關閉消息
37. void CMainDialog::OnCancel()
38. {
39. OutputDebugString("oncancel");
40. SetKeyHook(FALSE);
41. CDialog::OnCancel();
42. return;
43. }
44. long CMainDialog::OnHookKey(WPARAM wParam, LPARAM lParam) //處理自定義消息
45. {
46. char szKey[80]={0};
47. GetKeyNameText(lParam, szKey, 80);
48. CString strItem;
49. strItem.Format("按鍵:%s\r\n", szKey);
50. CString strEdit;
51. GetDlgItem(IDC_KEYMSG)->GetWindowText(strEdit);
52. GetDlgItem(IDC_KEYMSG)->SetWindowTextA(strEdit+strItem);
53. ::MessageBeep(MB_OK);
54. return 0;
55. }