SearchTreeForFile

VB声明

Declare Public Declare Function SearchTreeForFile Lib "imagehlp.dll" (ByVal lpRoothPath As String, ByVal lpInputName As String, ByVal lpOutputName As String) As Long

该函数在imagehlp.dll动态链接库中

说明

寻找文件完整路径

返回值

Long型，如果不存在该文件返回值为0

参考表

lpRoothPath 查找的磁盘路径 即根目录

lpInputName 查找的文件名字

lpOutputName 输出路径缓冲区

示例：

用于查找F盘中是否存在1.txt这个文件。

Private Declare Function SearchTreeForFile Lib "imagehlp.dll" _

(ByVal lpRoothPath As String, ByVal lpInputName As String, _

ByVal lpOutputName As String) As Long

Private Function sysFileFind(ByVal WhichRootPath As String, ByVal WhichFileName As String) As String

Dim iNull As Integer

Dim lResult As Long

Dim sBuffer As String

On Error GoTo FileFindError

sBuffer = String$(1024, 0)

lResult = SearchTreeForFile(WhichRootPath, WhichFileName, sBuffer)

If lResult Then

iNull = InStr(sBuffer, vbNullChar)

If Not iNull Then

sBuffer = Left$(sBuffer, iNull - 1)

End If

sysFileFind = sBuffer

MsgBox sysFileFind, vbOKOnly, "提示"

Else

MsgBox "F盘中不存在1.txt文件", vbOKOnly, "提示"

End If

Unload Me

Exit Function

FileFindError:

MsgBox "查找文件过程中遇到错误！", vbInformation, "查找文件错误"

Unload Me

End Function

Private Sub Form_Load()

sysFileFind "F:\\", "1.txt"

End Sub