为什么SHFileExists总会返回False?????

VB.NET code

Private Declare Function SHFileExists Lib "shell32" Alias "#45" (ByVal szPath As String) As Long

无论参数如何，该函数总会返回0，为什么呢？？？？


这个函数怎么用？

VB.NET code

Private Declare Function SearchTreeForFile Lib "dbghelp.dll" (ByVal RootPath As String, ByValputPathName As String, ByValputPathBuffer As String) As Long

[解决办法]
SHFileExists(strconv("123",64))