by Laurence Lemmon-Warde (1 Submission)
Category: Windows API Call/Explanation
Compatability: Visual Basic 3.0
Difficulty: Intermediate
Date Added: Wed 3rd February 2021
Rating: 
(5 Votes)
This code will search the user's C:\ (or any other specified) drive for a given folder and if the folder is not found, it will call the CreateDirX function which in turn calls the API CreateDirectory function to create the specified folder. Once this is created, it will create a new notepad file within the folder and on each subsequent running of the application it will append info to this file. Great for logfile requirements!!
API DeclarationsPublic Declare Function CreateDirectory Lib "kernel32" Alias _
"CreateDirectoryA" (ByVal lpPathname As String, lpSecurityAttributes _
As SECURITY_ATTRIBUTES) As Long
'Insert into global module
Type SECURITY_ATTRIBUTES
nLength As Long
lpSecurityDescriptor As Variant
bInheritHandle As Boolean
End Type
VBcoders'include a common dialog control on your form for this baby to work
Public Sub OpenLog()
Dim LogFile as integer
On Error GoTo exit1
OpenLog.Flags = cdlOFNHideReadOnly Or cdlOFNExplorer
OpenLog.CancelError = True
OpenLog.FileName = "C:\JetLog\JET_LOG.log" ' or whatever name grabs you by ' the nads
temp = OpenLog.FileName
Ret = Len(Dir$(temp))
LogFile = FreeFile
' Open the log file.
Open temp For Binary Access Write As LogFile
If Err Then
Exit Sub
Else
' Go to the end of the file so that new data can be appended.
Seek LogFile, LOF(LogFile) + 1
End If
Exit Sub
exit1: ' Executes if folder is not found
MsgBox "Application will create new directory 'C:\JetLog' on your hard drive." & vbCrLf & "Replace message with your own text.", vbExclamation, "Message"
CreateDirX ("C:\JetLog") 'pass the path name you want to create in ' these brackets
OpenLog_Click
End Sub
Private Function CreateDirX(lpPathname As String) As Long
Dim FYL As Long
Dim DirC As SECURITY_ATTRIBUTES
FYL = CreateDirectory(lpPathname, DirC)
End Function
