Visual Basic 6 keyPress not reading characters?

May 29th, 2007 at 06:06am Under Forum

Visual Basic 6 keyPress not reading characters?
I’m reading in a string from a bar code scanner, I want to capture every character as it comes in, one at a time. It comes in so fast I can’t capture anything. Any ideas on how to slow down the string coming in? Use a buffer of some sorts?
Sorry, I should of mentioned. This is reading into a text box. The text box can be populated by keying in numbers or scanning a barcode which populates with numbers. Keying in numbers by hand seems to work fine, scanning a barcode does not, does not capture the numbers.

Best answer:

Reading a barcode value always needs a textbox. What is the use of Keypress event… No use.

Normally if you created a textbox and set the focus to it before firing the barcode scanner you’ll get the return data in your textbox instantly.

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Are there any alternatives to bar code reading?

March 8th, 2007 at 07:17am Under Forum

Are there any alternatives to bar code reading?
For device communication, are there any alternatives to the standard bar code readers?

Best answer:

RFID

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PSC QS1000 Barcode Scanner Not Reading Barcodes?

November 5th, 2005 at 10:10pm Under Forum

PSC QS1000 Barcode Scanner Not Reading Barcodes?
I have just purchased a new PSC QS1000. My computer does not have the latency support (no on-board graphics, Ps2 support, or IDE support) but this scanner has a Ps2 end, so i went to my local computer shop and picked up a USB to Ps2 Adapter, which has a single usb to a keyboard (purple) and a mouse(green) input. The scanner comes one, but when i scan a barcode it just reads some of it. Sometimes it will read 2 numbers out of 7 and some times it will read just 1 or 3 out of 7 numbers. Can someone tell me what i need to do? By the way i have an Intel DX58SO board.

Best answer:

You can try slowing down the output of the scanner. Most barcode scanners have a setting called “inter-character delay”. This setting puts a very small amount of time in between the transmission of characters from the scanner to the host PC. See if you can find setting like that in the users guide for the scanner. I did a quick search for the users guide to see what they might call this setting but was unable to find the users guide. I’m pretty sure this scanner has been retired for quite a while now. Probably since PSC was purchased by Datalogic. You may have purchased it new, but most likely it’s been sitting around for awhile. If you do find that setting and it doesn’t help, see if the scanner supports a USB connection. If it does you’d need to buy a USB cable for the scanner and replace the PS2 cable you have with the USB cable.It could be the adaptor you purchased is causing the problem. If all else fails call Datalogic support. Their website is listed below.

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I have Symbol (LS 2208 AP) ps2 port handheld barcode scanner. I connected properly -scanner not reading? why ?

February 19th, 2005 at 06:26pm Under Forum

I have Symbol (LS 2208 AP) ps2 port handheld barcode scanner. I connected properly -scanner not reading? why ?
when i triggered rays emerging and beep sounding but in the screen nothing happen. They have given programming barcodes for this scanner in the manual. i just not understand which one will help me.
please help.

Best answer:

PS2? Does it require a keyboard wedge? Do the cables eventually connect to the purple ps2 keyboard connector?
When a scanner beeps… it’s telling you it has internally decoded a barcode. That information should be transmitted to the keyboard and end up in the keyboard buffer… unless something is wrong with the physical connection, or the scanner.
Usually barcodes can configure the device for certain operation. What barcodes were you given?

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2D Barcode Scanner Reading Software?

January 5th, 2005 at 10:54am Under Forum

2D Barcode Scanner Reading Software?
Hello is there any software that would allow me to View/Read 2D Barsode scan on a pc . Using the Hex dump format.

Best answer:

Uh… what?

Most barcode readers dump output in ASCII, just like a keyboard would. What the heck is a “hex dump” format?

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