VB Forum / General 2 / July 2004

How do I check if a variable has been set?  For example:
dim v
set v = someVSettingFunc()
If v is not set properly in the function, how can I test this?

I'm new to Visual Basic 5. Does anyone know how I can get it to look up the
name of the current logged on user on a multi user PC running XP Pro

Can anyone tell me an easy way to hide numbers using XOR as mask, i.e.
I want to write a program that will get a number, then it will create two
random numbers that when they are XOR'ed together will create the original
number.

In VB5 Is there a way that I can pass variables to an external command line?
eg.
Shell ("xcopy /d/y/s source destination", 1)
Instead of typing in fixed paths for 'source' & 'destination', which works

I'm still having trouble with this. I want to use an ActiveX control on my
web page but I do not understand this CLSID stuff. Are they unique to my
app, and if so, how do I generate new ones? I tried a demo from microsoft
which worked fine, but I don't know how to make mine work.

Shree Ganesha
Dear Friends,
Pls tell me what shd I be doing in order to block registered users of
any ISP from routing INTERNET Connection through a windows client.

I am trying to create a macro that will enable a chart to continually
grow with relation to a range of data.
The difficulty I am having is that the data is enlarged by one row
every month, and I would like the chart to automatically update with

How can I get a replacement CD? Mine has got damaged and I need to
re-install. I already have a serial number.
With best regards, Lindsay.  E-mail: lindsay@home.com

Shree Ganesha
Dear Friends,
Pls tell me what shd I be doing in order to block registered users of
any ISP from routing INTERNET Connection through a windows client.

I am re-installing VB6 and can anyone help me to register the old dbgrid32
control on my machine ??
I have copied over dbgrid32.ocx and dbgrid32.dep into C:\windows\system32
(a XP machine). I have forgotten the command that comes next !!

Has anyone got any ideas how I could go about producing a maths program for
Primary School pupils? The coding isn't such a problem (ie random numbers
etc), it's acctually figuring out how to interface it or what objects to use
where etc.

I use the PlaySound API.  Is there a way for me to catch a 'Sound completed'
event.
Thanks
Malcolm

I'm currently developing a system which communicates via a standard PC
serial port to custom test hardware.
Port is variable (Com 1 to Com whatever, set in a config file). 19200
baud, 8N1. (also set in a config file).

Can anyone tell me an easy way to hide numbers using XOR as mask, i.e.
I want to write a program that will get a number, then it will create two
random numbers that when they are XOR'ed together will create the original
number.

I ahve just installed a shareware program called Visual Route, and I have
noticed that it has placed an icon on the ie tool bar.
Can any one explain how to do this in vb6 please.
The idea of having my programs icon on the toolbar appeals to me