Login | Register   
RSS Feed
Download our iPhone app
Browse DevX
Sign up for e-mail newsletters from DevX

By submitting your information, you agree that devx.com may send you DevX offers via email, phone and text message, as well as email offers about other products and services that DevX believes may be of interest to you. DevX will process your information in accordance with the Quinstreet Privacy Policy.

Tip of the Day
Language: Visual Basic
Expertise: Advanced
Aug 6, 1997



Building the Right Environment to Support AI, Machine Learning and Deep Learning

Automatically Upgrade Workstation EXEs

I'm programming for a LAN and quite often I add requested features to the program. The LAN is set up so that each workstation is running its own copy of the program and is only reading/writing data files on the server. This arrangement has significantly increased the startup speed of the program; however, when the EXE file is changed, all the workstation programs must be changed. I get around having to go to each station with this program:
Private Sub Form_Load()
	On Error GoTo errorhandler
	' the Command function Returns the 
	' argument portion of the command 
	' line used to launch Microsoft 
	' Visual Basic or an executable 
	' program developed with Visual Basic.
	' ie:(thisprog.exe c:\localdir\prgcopied.exe 
	' k:\servrdir\prgtocopy.exe)
	If FileDateTime(Left(Command$, _
		InStr(Command$, " ") - 1)) < _
		FileDateTime(Mid$(Command$, _
		InStr(Command$, " ") + 1)) Then 
		' case the file does not exist
		' locate the form designed to your pref.
		Top = (Screen.Height - Height) / 2
		Left = (Screen.Width - Width) / 2
		' containing a label
		label1 = "Copying " & Mid$(Command$, InStr_
			(Command$, " ") + 1) & _
			" to your hard_disk..."
		' make the form it visible so the 
		' operator has something to look 
		' at while the program is copied
		Visible = True
		' copy file as per parameters in Command$
		FileCopy Mid$(Command$, _
			InStr(Command$, " ") + 1), _
			Left(Command$, InStr(Command$, " ") - 1)
	End If
	'start the program
	x = Shell(Left(Command$, InStr(Command$, " ") - 1), 3)
	Exit Sub
	If Err = 53 Then 'file not found
		Resume Next 'copy the file anyway
	Else 'trap other errors
		MsgBox "Error # " & Err & Chr(10) & Error _ 				& Chr(10) & "program will be terminated"
	End If
	Exit Sub
End Sub
Fred Lyhne
Comment and Contribute






(Maximum characters: 1200). You have 1200 characters left.



Thanks for your registration, follow us on our social networks to keep up-to-date