Thanks for the info and the followup!

Looks like that might work. Could you ask your friend if it's bi-directional. Thanks!

I haven't done a lot of interfacing to windows printers - have used mainly 3rd party reporting tools. Here's what I envisioned: Table descriptive printer name and IP address - for picklist No printer driver required to be installed - these are all Zebra printers, but some are different models Connect to printer Send ~H1 - read status command to Zebra Wait for response - make sure ready, has correct label size, has ribbon. (these printers could be in another building - so I have to know if they're ready) Send raw ZPL to printer. Done! Does your print queue idea provide for this?

Long time ago I sent raw ZPL via the comm port. Now I would like to print to Zebra's shared off the same server. It needs to be a two way communication: request the Zebra status - and then download the raw ZPL to print the label. I've never used the TCP/IP classes. If anyone could point me in the right direction, I'd appreciate it.

As a 61 yr/old comp sci graduate... If you are able, find another profession. There is not 'one' thing to learn. There are 50 pieces to learn, and they keep changing and evolving. By the time you're 35, and figure this out, you will be trapped. You will spend so much time keeping up with change, which is really not change at all, and you don't get any more status, money, happiness, or career path. Programming has become a dead end job, in a very small cubicle. My advice is to become a skilled tradesman, CPA, lawyer, doctor, or marketing/sales person. These are the people who have a chance with a real career.

Is there a way to preload the Pegasus Dll's? Some users have delays of 11-20 seconds in the mybase.new method.

I tend to agree with you. But this has changed between versions of Pegasus controls.

I have an app the has a large complex window (it edits documents) that uses Pegasus controls. On several of my machines the window opens in about 3 seconds. With one particular customer it takes almost 11 seconds. They have just about the same hardware and O/S as I do (XP, sp 3). I had them install more memory, and that didn't help either. I have added code to time events down to the millisecond - and have found the problem lies in the creation of the window. Loading the data and images is no problem - the times on all machines is about the same. Any ideas?

Another good idea. I need to see how much money the client wants to spend on this.

Thanks. That's another good idea I can try.

David Mujica wrote:

What about making the task self submit itself to the task scheduler at midnight, then exit ?

This sounds like a sensible solution.

Is there a way one can start a program, then stop it (say at midnight), and restart it again?

The application watches a folder, and moves the files to another directory, and records some info in an SQL database. The app sometimes just disappears. It's not a complicated app. I checked to make sure I close all file handles, SQL connections, etc. Any idea on how to find out what's going on?

My customer sent a copy of the Adobe (distiller?) window. It clearly shows my two fonts with a yellow 'lock' icon. It also says: "Only fonts with the appropriate permission bits will be embedded"

I have been using a font (bundled) with my applications for many years. Today I got an email from a customer, stating that the font was locked, and their Adobe pdf printer wouldn't print it. I searched the web, but came up empty on how to unlock a font file. Any ideas?

Scott, Thanks for the response. I have a couple of questions: I figure that memory usage should always be the same. However each time I start the app, and call GC.GetTotalMemory I get a different value! Are there any system calls I can make to help me find out what's really happening with memory usage? Secondly, is there a list of .net objects that explicity need dispose() to be called manually? I'll wrap the close/dispose in try/catch. I was under the impression that if it failed I'd get a runtime error? Thanks.

I have written a document imaging system in VB.Net, using Pegasus tool kit. We have over 100 client's with no problems. However our latest client is experiencing problems. They have two users and both are having the same problem. The error message is to the affect: "attempt to read or write to protected memory" This is occuring after they open and close a scaning window numerous times over the course of 30 minutes. I made sure that I disposed of all the Pegasus tools (put msgbox()) in the window's dispose method. I don't create any 'fancy' objects, although I do open file streams. But I make sure they are closed, as I do for Sqlconnections and data readers. I put a garbage collector button in the parent window: GC.Collect() GC.WaitForPendingFinalizers() GC.Collect() GC.WaitForPendingFinalizers() MessageBox.Show("Done!" + vbCrLf + _ "Memory Allocated: " + GC.GetTotalMemory(False).ToString, "Garbage Collection") I can see the memory usage going up everytime I instantiate a new window. What's interesting is that from run to run the amount reported by GetTotalMemory is always different. Does anyone have any advice as how to approach this? Are there common VB objects that need to be manually disposed of? Thanks!

I needed to replace the disk on my development machine. Everything went fine. I had my VB.Net application backed up to DVD. I reloaded the folder, and tried a build, I received 42 of these warning messages: Namespace or type specified in the project-level Imports 'PegasusImaging.WinForms.TwainPro4' doesn't contain any public member or cannot be found. Make sure the namespace or the type is defined and contains at least one public member. Make sure the imported element name doesn't use any aliases. They relate to different Pegasus Namespaces (TwainPro, PrintPro, etc). I tried removing the reference, and adding it back in, but the warnings persist.

If you want to burn cd's I highly reccomend numediasoft.com. They give you the complete app - that burns DVD's, data cd's, audio cds, and is written to high standard. In 30 minutes I was burning cd's. It took a day to modify the app for my purposes. NONE of the other CD burning packages returned my emails.

Yes, I'd like to buy a commercial SDK - do you know of one?