学步园

//...
    long     length = 0;
    TCHAR*   buffer = NULL;

// First obtain the size needed by passing NULL and 0.

    length = GetShortPathName(lpszPath, NULL, 0);
    if (length == 0) ErrorExit(TEXT("GetShortPathName"));

// Dynamically allocate the correct size 
// (terminating null char was included in length)

    buffer = new TCHAR[length];

// Now simply call again using same long path.

    length = GetShortPathName(lpszPath, buffer, length);
    if (length == 0) ErrorExit(TEXT("GetShortPathName"));

    _tprintf(TEXT("long name = %s shortname = %s"), lpszPath, buffer);
    
    delete [] buffer;
///...

int _tmain(int argc, _TCHAR* argv[])
{
	TCHAR str_ExePath[MAX_PATH]={0};  
	TCHAR str_startup_path[MAX_PATH]={0};


	GetModuleFileName(NULL,str_ExePath,MAX_PATH); 


	GetShortPathName(str_ExePath,str_startup_path , MAX_PATH);


	MessageBox(0,str_ExePath,str_startup_path,0);


	mythread(0);


	return 0;
}