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。

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。