本文所述实例主要实现了删除某个盘符下指定位置的文件，可以是TXT、doc、jpeg等格式，只要选定格式后，再定义好盘符，即可一键删除所有指定类型的文件。再次提示删除前请确认，且删除后不可恢复。
以下是最主要的核心代码，其它代码读者可以自己添加。
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
|
SHFILEINFO shInfo;memset(&shInfo,0,sizeof(SHFILEINFO));HIMAGELIST hImage = (HIMAGELIST)SHGetFileInfo("C:\\",0,&shInfo, sizeof( SHFILEINFO ), SHGFI_SYSICONINDEX | SHGFI_SMALLICON );m_ImageList.Attach(hImage); m_ComboEx.SetImageList(&m_ImageList);m_ComboEx.ResetContent();char pchDrives[128] = {0};char* pchDrive;GetLogicalDriveStrings(sizeof(pchDrives), pchDrives); //列举盘符pchDrive = pchDrives;int nItem = 0;while(*pchDrive){ COMBOBOXEXITEM cbi; CString csText; cbi.mask = CBEIF_IMAGE|CBEIF_INDENT|CBEIF_OVERLAY| CBEIF_SELECTEDIMAGE|CBEIF_TEXT; SHFILEINFO shInfo; //定义文件信息 int nIcon; SHGetFileInfo(pchDrive, 0, &shInfo, sizeof(shInfo), SHGFI_ICON|SHGFI_SMALLICON); //获取系统文件图标 nIcon = shInfo.iIcon; //设置COMBOBOXEXITEM结构 cbi.iItem = nItem; cbi.pszText = pchDrive; cbi.cchTextMax = strlen(pchDrive); cbi.iImage = nIcon; cbi.iSelectedImage = nIcon; cbi.iOverlay = 0; cbi.iIndent = (0 & 0x03); m_ComboEx.InsertItem(&cbi); //插入数据 nItem++; pchDrive += strlen(pchDrive) + 1; } return TRUE; // return TRUE unless you set the focus to a control}void CDeleteDlg::OnSysCommand(UINT nID, LPARAM lParam){ if ((nID & 0xFFF0) == IDM_ABOUTBOX) { CAboutDlg dlgAbout; dlgAbout.DoModal(); } else { CDialog::OnSysCommand(nID, lParam); }}void CDeleteDlg::OnPaint() { if (IsIconic()) { CPaintDC dc(this); // device context for painting SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); // Center icon in client rectangle int cxIcon = GetSystemMetrics(SM_CXICON); int cyIcon = GetSystemMetrics(SM_CYICON); CRect rect; GetClientRect(&rect); int x = (rect.Width() - cxIcon + 1) / 2; int y = (rect.Height() - cyIcon + 1) / 2; // Draw the icon dc.DrawIcon(x, y, m_hIcon); } else { CDialog::OnPaint(); }}HCURSOR CDeleteDlg::OnQueryDragIcon(){ return (HCURSOR) m_hIcon;}void CDeleteDlg::DelFile(CString path,CString name){ CString strtemp; if (path.Right(1) != "\\") //判断路径是否以\结尾 strtemp.Format("%s\\*.*",path);//设置通配符 else strtemp.Format("%s*.*",path);//设置通配符 CFileFind findfile; BOOL bfind = findfile.FindFile(strtemp);//查找文件 while (bfind)//循环查找 { bfind = findfile.FindNextFile();//查找下一个文件 if(!findfile.IsDots() && !findfile.IsDirectory()) { CString str = findfile.GetFileName(); int index = str.ReverseFind('.'); if(str.Right(str.GetLength()-index) == name) { DeleteFile(findfile.GetFilePath()); } } else if (findfile.IsDots()) { continue; } else if (findfile.IsDirectory())//如果是目录 { DelFile(findfile.GetFilePath(),name);//递归查找 } }}void CDeleteDlg::OnButdelete() { // TODO: Add your control notification handler code here CString path,name; m_ComboEx.GetWindowText(path); m_ExName.GetWindowText(name);//获得文件扩展名 DelFile(path,name); MessageBox("已删除指定类型文件！");} |
这里省去了窗体部分的代码，进行过VC开发的朋友应该可以看得懂的。
