VB Forum / Win API / October 2008

How can I get the type of an optical drive.  IOW how can I know
whether the drive is a CD drive or a DVD drive or a combo (CD and DVD)
drive.  Also how can I determine if the drive has burn capabilities
and if so what types of media (CD-R, CD+R, CD-RW, DVD-R, etc.) it

I'm trying to write something to find and capture data in ADS
(alternative data streams).  I can't find anything in MSDN or any
other source on how to detect them.  I've found utilities that can,
but for my purpose, I need to do it from my own code (it's a liability

Can anybody point me to a tutorial or some code which can control a
Medium Changer device.  Specifically I am trying to control a
Powerfile CD/DVD Jukebox.  This device is a 200 disc CD/DVD changer.
It is connected to the PC via Firewire.  I have found a command line

Can somebody help me with the this structure (from winioctl.h).  I
need to convert it to VB so that I can call the DeviceIOControl
function to return this data.  I thought it looked fairly straight
forward but I must have something wrong because I am not getting what

[VB6]
I know there are different versions of the NotifyIconData structure that
correspond to various version of Shell32.dll, and that the later versions of
Shell32 provide additional functionality to system tray icons.

I'm trying to put my system in 'low power'.   I've changed the setting on my
monitor to turn off in 10 minutes but am wondering - the options give me a
choice of putting my Hard Drive in a lower power state, by turning it off in
a certain time frame.   Is that safe?  Or could I ...

Anyone have a working example on how to resize a form to the size a
picture? I tried using GetSystemMetrics to account for borders, caption,
menu, etc, but the forms borders (Bottom & Right) still cover parts of
the loaded image. For now I gave up on that and came up with this, its

I am having problems scrolling an owner-drawn listbox. When scrolling with
the mouse wheel I get a really weird effect, like it is scrolling the wrong
way, then stopping at the right place. I found a KB article describing
something similar, but it's very old; I can't believe this ...

I have a variant array with a column in the middle which I want to get
rid of.
Can I use the CopyMemory API to achieve this or is there a simply way?
Any pointers/explanation as to the methodology would be gratefully received.

My app uses ShellExecute() open a PDF file for the user using his default PDF
reader. The path to the file, for various reasons, is a URI, not a Windows
file path. On our test systems, and on most of our customer systems, this
works fine. But on a handful of systems, we find that ...

Ok ive bin trying to do this for hours an hours now this dialog box is a
pain in my butt  "#32770(dialog)"
the way i have it set up
dim hwnd as long , dwnd as long , swnd as long

Haveing a handle to the Save As dialog, is there a way to obtain the
OPENFILENAME structure it contains, change its properties, and hand it back
over to the dialog? I would think that if you can open notepad (or any other
app that allows file handling), hit Edit/Save to pop that ...

If exist method for getting status or error in VB 6.0
See codes
--
Dim Rs      As New ADODB.Recordset

Hi, I have two questions of freeing up memory, I hope someone can help me:
1. After using BitBlt() function to capture the display content to picture
box, is it necessary to free up the memory? The follwoing is the code:
   Picture1.AutoRedraw = True

Does anyone know if while a Window is minimized, the display info is stored
somewhere in memory and accessible ?
Or does Windows re-renerate the display of a window each time it is
restored from a minimized state ? Or if it not the foreground window, for