Find Files Via API (Advanced)

'Add a module to your project (In the menu choose Project -> Add Module, Then click Open)
'Add 1 Command Button, 4 Text Boxes and 1 List Box to your Form.
'At Run-Time, Enter the path that you want to start to search from it to Text1,
'Enter the file pattern to Text2 (like *.* or  *.exe), and press the button.
'List1 will be filled with all the matching files, Text3 will display the number of files found,
'And Text4 will display the total size of the files found.
'Insert this code to the module :

Declare Function FindFirstFile Lib "kernel32" Alias _
"FindFirstFileA" (ByVal lpFileName As String, lpFindFileData _
As WIN32_FIND_DATA) As Long
Declare Function FindNextFile Lib "kernel32" Alias "FindNextFileA" _
(ByVal hFindFile As Long, lpFindFileData As WIN32_FIND_DATA) As Long
Declare Function GetFileAttributes Lib "kernel32" Alias _
"GetFileAttributesA" (ByVal lpFileName As String) As Long
Declare Function FindClose Lib "kernel32" (ByVal hFindFile As Long) _
As Long

Public Const MAX_PATH = 260
Public Const MAXDWORD = &HFFFF
Public Const INVALID_HANDLE_VALUE = -1
Public Const FILE_ATTRIBUTE_ARCHIVE = &H20
Public Const FILE_ATTRIBUTE_DIRECTORY = &H10
Public Const FILE_ATTRIBUTE_HIDDEN = &H2
Public Const FILE_ATTRIBUTE_NORMAL = &H80
Public Const FILE_ATTRIBUTE_READONLY = &H1
Public Const FILE_ATTRIBUTE_SYSTEM = &H4
Public Const FILE_ATTRIBUTE_TEMPORARY = &H100

Type FILETIME
dwLowDateTime As Long
dwHighDateTime As Long
End Type

Type WIN32_FIND_DATA
dwFileAttributes As Long
ftCreationTime As FILETIME
ftLastAccessTime As FILETIME
ftLastWriteTime As FILETIME
nFileSizeHigh As Long
nFileSizeLow As Long
dwReserved0 As Long
dwReserved1 As Long
cFileName As String * MAX_PATH
cAlternate As String * 14
End Type

Public Function StripNulls(OriginalStr As String) As String
If (InStr(OriginalStr, Chr(0)) > 0) Then
OriginalStr = Left(OriginalStr, _
InStr(OriginalStr, Chr(0)) - 1)
End If
StripNulls = OriginalStr
End Function


'Insert the following code to your form:

Function FindFilesAPI(path As String, SearchStr As String, _
FileCount As Integer, DirCount As Integer)
Dim FileName As String
Dim DirName As String
Dim dirNames() As String
Dim nDir As Integer
Dim i As Integer
Dim hSearch As Long
Dim WFD As WIN32_FIND_DATA
Dim Cont As Integer
If Right(path, 1) <> "\" Then path = path & "\"
nDir = 0
ReDim dirNames(nDir)
Cont = True
hSearch = FindFirstFile(path & "*", WFD)
If hSearch <> INVALID_HANDLE_VALUE Then
Do While Cont
DirName = StripNulls(WFD.cFileName)
If (DirName <> ".") And (DirName <> "..") Then
If GetFileAttributes(path & DirName) And _
FILE_ATTRIBUTE_DIRECTORY Then
dirNames(nDir) = DirName
DirCount = DirCount + 1
nDir = nDir + 1
ReDim Preserve dirNames(nDir)
End If
End If
Cont = FindNextFile(hSearch, WFD)
Loop
Cont = FindClose(hSearch)
End If
hSearch = FindFirstFile(path & SearchStr, WFD)
Cont = True
If hSearch <> INVALID_HANDLE_VALUE Then
While Cont
FileName = StripNulls(WFD.cFileName)
If (FileName <> ".") And (FileName <> "..") Then
FindFilesAPI = FindFilesAPI + (WFD.nFileSizeHigh * _
MAXDWORD) + WFD.nFileSizeLow
FileCount = FileCount + 1
List1.AddItem path & FileName
End If
Cont = FindNextFile(hSearch, WFD)
Wend
Cont = FindClose(hSearch)
End If
If nDir > 0 Then
For i = 0 To nDir - 1
FindFilesAPI = FindFilesAPI + FindFilesAPI(path & dirNames(i) _
& "\", SearchStr, FileCount, DirCount)
Next i
End If
End Function

Private Sub Command1_Click()
Dim SearchPath As String, FindStr As String
Dim FileSize As Long
Dim NumFiles As Integer, NumDirs As Integer
Screen.MousePointer = vbHourglass
List1.Clear
SearchPath = Text1.Text
FindStr = Text2.Text
FileSize = FindFilesAPI(SearchPath, FindStr, NumFiles, NumDirs)
Text3.Text = NumFiles & " Files found in " & NumDirs + 1 & _
" Directories"
Text4.Text = "Size of files found under " & SearchPath & " = " & _
Format(FileSize, "#,###,###,##0") & " Bytes"
Screen.MousePointer = vbDefault
End Sub