PathFileExists用法－－使用#include <shlwapi.h>

转载于：http://www.cnblogs.com/joeblackzqq/archive/2010/11/09/1872309.html

BOOL PathFileExists(LPCTSTR pszPath);

         Determines if a file exists.

---经检测，该函数可以检测文件或目录是否存在！

Remarks

This function tests the validity of the file and path. It works only on the local file system or on a remote drive that has been mounted to a drive letter. It will return FALSE for remote file paths that begin with the UNC names \\server or \\server\share. It will also return FALSE if a mounted remote drive is out of service.

 

为了使用PathFileExists()，必须包含头文件"shlwapi.h"，范例代码如下：

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#include <windows.h>

#include <iostream.h>

#include <shlwapi.h>

  

void main( void )

{

    // Valid file path name (file is there).

    charbuffer_1[] = "C:\\TEST\\file.txt"; 

    char*lpStr1;

    lpStr1 = buffer_1;

      

    // Invalid file path name (file is not there).

    charbuffer_2[] = "C:\\TEST\\file.doc"; 

    char*lpStr2;

    lpStr2 = buffer_2;

      

      

    // Search for the presence of a file with a true result.

    intretval = PathFileExists(lpStr1);

    if(retval == 1)

    {

        cout <<"Search for the file path of : " << lpStr1 << endl;

        cout <<"The file requested \"" << lpStr1 << "\" is a valid file" << endl;

        cout <<"The return from function is: " << retval << endl;

    }

      

    else

    {

        cout <<"The file requested " << lpStr1 << " is not a valid file" << endl;

        cout <<"The return from function is: " << retval << endl;

    }

      

    // Search for the presence of a file with a false result.

    retval = PathFileExists(lpStr2);

    if(retval == 1)

    {

        cout <<"\nThe file requested " << lpStr2 << " is a valid file" << endl;

        cout <<"Search for the file path of: " << lpStr2 << endl;

        cout <<"The return from function is: " << retval << endl;

    }

      

    else

    {

        cout <<"\nThe file requested \"" << lpStr2 << "\" is not a valid file" << endl;

        cout <<"The return from function is: " << retval << endl;

    }

}

编译后，却发现一个错误：error LNK2001: unresolved external symbol __imp__PathFileExistsA@4

网上搜索了下，发现是因为没有添加相应的lib。添加lib的方法网上有不少，这里使用下面的方法：

 

 这样，就可以通过编译了！