VB Forum / Win API / January 2008

For a testing application, I need to create big disk files
~1GB quickly.
Creating a small file then using SetEndOfFile makes the big file,
but it gets filled with zeros and takes forever. (~18 minutes/GIG on a

I have a VB6 Application and I want to show directly then Printer Setup
Dialog, displayed by the Printer button of the Page Setup Dialog.
How can I do that?
Best regards,

how do u send email in vb.net?
any samples?

Where is the best place to get the constant values for some of the API
functions?
For instance, using the GPO API I have some constants like
GPO_LIST_FLAG_MACHINE which I know is &H1 because I had to Google it. How

Ref:http://msdn2.microsoft.com/en-us/library/aa384318(VS.85).aspx
As per the above link how to set InternetBuffer to null
Please show me sample piece of code.
Thank you,

I have a problem for some reason with Vbhide on one XP computer. I have some
code running on 30 XP machines and it runs fine, but one XP machine doesn’t
want to hide the window when executed.
The below code is an example of the line of code that opens the window and

Does anybody knows how to read and seek a file bigger than 2GB.
SetFilePointer uses Long parameters, so 1 can't go far beyond that
limit...thnx!!!!

I am opening documents(*.txt, *.doc, etc.) in external
applications(Notepad, Word Viewer, Excel Viewer) and I have to scroll
automatically those external applications.
I've looked so far in GetScrollInfo, GetScrollRange, ScrollWindow and

I'm looking for VB (v6 preferably or 2005) code to automatically select
checkboxes on a web page displayed within a web browser.
The story is that my webmail provider doesn't block spam, and I frequently
have hundreds of spam emails to delete. The only way to do this is to

I am going to use SENDKEYS in my VB6 application (when a command button is
clicked) to open and then execute some keyboard shortcuts in another
application BUT I want the user of the computer to not be able to affect the
running of SENDKEYS until it has completed. It is very ...

I am trying to create a process with the API: CreateProcessWithLogonW. The
process (say, CMD.EXE) which gets created doesnt have the environment
variables which I have explicitly passed into it as the parameter. The same
environment block works for CreateProcessAsUser, but doesnt ...

Does anyone know if it is possible to call the Run-As dialog, and return a Token
handle that can be used by ImpersonateLoggedOnUser? I would like to be able to
allow my program to change users while running, without forcing a restart of the
program. LogonUser and ...

The code below always returns the length of the first line of text in a
textbox under Windows XP.
Function GetLineLen(txt As TextBox, line As Long) As Long
GetLineLen = SendMessage(txt.hwnd, EM_LINELENGTH, ByVal line, ByVal 0&)

I recently saw some VB code and there was a shortcut and I was hoping
someone knew what is its correct term.
When creating an object that required parameters (or a function), rather
than putting blanks or nulls in optional parameters, the code named the