VBWeb VBSource Portfolio

OUT ON THE INTERNET

	Hello World Example
	SampleMain Example
	Code Snippets
	Request Collection
	Missing Terms
	Multi-Select
	Names Collection

	Debugging
	Stepping Through Code
	HTML Templates
	Cookies

	AddToRequest
	BackupRequest
	CgiDebugPrint
	ErrorHandler
	Escape
	Extract
	FileContents
	FileExists
	GetRequest
	GmtDate
	IsVBIDE
	LoadRequest
	Parse
	Redirect
	Replace
	Send
	SendLn
	ServerVariables
	SetCookie
	StandardIn
	UrlDecode
	UrlEncode

Appendix

	Web Server Directory Mapping
	Computer Name & IP Address

Reference

CgiDebugPrint

Writes a message into a log file.

Syntax: CgiDebugPrint Msg
Call CgiDebugPrint(Msg)

Msg - Required text that gets written into the log file.

Remarks
The log file from the previous run gets deleted the first time CgiDebugPrint gets called during a run. CgiDebugPrint will not write a message or delete the previous log unless IsCgiDebugOn is set to True. The log file gets the same name as the executable but with the extension ".LOG". Then it goes in the same directory as the executable. (App.Path & "\" & App.EXEName & ".log")

Example
Const MY_IP = "256.256.256.256" If Environ(CGI_REMOTE_ADDR) = MY_IP Then IsCgiDebugOn = True End If Call CgiDebugPrint("Started app " & now) Call LoadRequest Call CgiDebugPrint("Done loading " & now)

ErrorHandler

Sends an HTML page containing a nice message back to the visitor.

Syntax: ErrorHandler AdditionalMsg
Call ErrorHandler(AdditionalMsg)

AdditionalMsg - Optional text that goes in the response page.

Remarks
This command is intended to go in the error trap part of Sub Main. That way, your visitors get some kind of response if a VB error occurs. ErrorHandler takes no chances sending the response page. After the page is sent, it calls the BackupRequest command.

See also: BackupRequest.

Example
Public Sub Main() On Error GoTo Trap Call CGI_Main End Trap: Call ErrorHandler End Sub