VB COM, BarCode Scanner and VB

BarCode Scanner and VB

Author	Message
Ivan Demkovitc #1 / 7	BarCode Scanner and VB Hi! We starting project in which we will communicate with barcode scanners. It's completely new to me. So far I found that I will need to use WinSock and MSCOMM controls. Also I found wrapper class around MSCOMM control so I will not need to include form in project. I assume I can do same way with WinSock control. Scanner by itself have internal memory and i can write DOS application with C/C++ and upload to scanner. My question to NG: Is there any good books this kind of programming oriented? Anybody heard of app written in VB using COM+ to work with scanners? Web sources? I found 1 NG but it's dead What I can start with? Thanks for ideas, examles, etc..
Mon, 03 May 2004 03:23:21 GMT

Stef #2 / 7	BarCode Scanner and VB You won't need to use COM+, at least is not necessary... There is a "huge" difference between MSCOMM and WINSOCK. MSComm uses the communicaton port, while WinSock wraps you to the TCP/IP layer.... If you use controls on a form, you WON'T need to display it, just load it using the following: Load form1 and then access the control. If you access the control directly, like form1.mscomm1.open, then the form will be dipslayed instead.. You won't need any special book, you will need to understand how the communication MSCOMM works and then look at the bar code protocol...... once you understand the communication basics, it doesn't matter at all which device is connected to.... If you don't have any experiance with serial protocols, just check the MSCOMM descriptions and start to use the MSCOMM to read and write to the code-readed and understand the responses and the return codes..... stef Quote: > Hi! > We starting project in which we will communicate with barcode scanners. > It's completely new to me. So far I found that I will need to use WinSock > and MSCOMM controls. Also I found wrapper class around MSCOMM control so I > will not need to include form in project. > I assume I can do same way with WinSock control. > Scanner by itself have internal memory and i can write DOS application with > C/C++ and upload to scanner. > My question to NG: > Is there any good books this kind of programming oriented? > Anybody heard of app written in VB using COM+ to work with scanners? > Web sources? > I found 1 NG but it's dead > What I can start with? > Thanks for ideas, examles, etc..
Mon, 03 May 2004 05:56:05 GMT

Ivan Demkovitc #3 / 7	BarCode Scanner and VB I'm trying to predict all possibilities. And you can not use DLL with form as a remote component. Here wrapper class comes handy (From my point of view at least) Some scanners communicate using serial port and some of them have Terminal connected to the hub. Here you communicate thru TCP/IP I'm planning to write class that will access any kind of server. I just can't find any related information on Scanner. Quote: > You won't need to use COM+, at least is not necessary... > There is a "huge" difference between MSCOMM and WINSOCK. > MSComm uses the communicaton port, while WinSock wraps you to the TCP/IP > layer.... > If you use controls on a form, you WON'T need to display it, just load it > using the following: > Load form1 > and then access the control. > If you access the control directly, like form1.mscomm1.open, then the form > will be dipslayed instead.. > You won't need any special book, you will need to understand how the > communication MSCOMM works and then look at the bar code protocol...... once > you understand the communication basics, it doesn't matter at all which > device is connected to.... > If you don't have any experiance with serial protocols, just check the > MSCOMM descriptions and start to use the MSCOMM to read and write to the > code-readed and understand the responses and the return codes..... > stef > > Hi! > > We starting project in which we will communicate with barcode scanners. > > It's completely new to me. So far I found that I will need to use WinSock > > and MSCOMM controls. Also I found wrapper class around MSCOMM control so I > > will not need to include form in project. > > I assume I can do same way with WinSock control. > > Scanner by itself have internal memory and i can write DOS application > with > > C/C++ and upload to scanner. > > My question to NG: > > Is there any good books this kind of programming oriented? > > Anybody heard of app written in VB using COM+ to work with scanners? > > Web sources? > > I found 1 NG but it's dead > > What I can start with? > > Thanks for ideas, examles, etc..
Mon, 03 May 2004 06:25:45 GMT

Phil #4 / 7	BarCode Scanner and VB There are lots of off the shelf activex dlls you can buy to do the job try www.greymatter.co.uk Quote: >-----Original Message----- >I'm trying to predict all possibilities. >And you can not use DLL with form as a remote component. >Here wrapper class comes handy (From my point of view at least) >Some scanners communicate using serial port and some of them have Terminal >connected to the hub. Here you communicate thru TCP/IP >I'm planning to write class that will access any kind of server. >I just can't find any related information on Scanner. >> You won't need to use COM+, at least is not necessary... >> There is a "huge" difference between MSCOMM and WINSOCK. >> MSComm uses the communicaton port, while WinSock wraps you to the TCP/IP >> layer.... >> If you use controls on a form, you WON'T need to display it, just load it Quote: >> using the following: >> Load form1 >> and then access the control. >> If you access the control directly, like form1.mscomm1.open, then the form - Hide quoted text - - Show quoted text - Quote: >> will be dipslayed instead.. >> You won't need any special book, you will need to understand how the >> communication MSCOMM works and then look at the bar code protocol...... >once >> you understand the communication basics, it doesn't matter at all which >> device is connected to.... >> If you don't have any experiance with serial protocols, just check the >> MSCOMM descriptions and start to use the MSCOMM to read and write to the >> code-readed and understand the responses and the return codes..... >> stef message Quote: >> > Hi! >> > We starting project in which we will communicate with barcode scanners. >> > It's completely new to me. So far I found that I will need to use >WinSock >> > and MSCOMM controls. Also I found wrapper class around MSCOMM control so Quote: >I >> > will not need to include form in project. >> > I assume I can do same way with WinSock control. >> > Scanner by itself have internal memory and i can write DOS application - Hide quoted text - - Show quoted text - Quote: >> with >> > C/C++ and upload to scanner. >> > My question to NG: >> > Is there any good books this kind of programming oriented? >> > Anybody heard of app written in VB using COM+ to work with scanners? >> > Web sources? >> > I found 1 NG but it's dead >> > What I can start with? >> > Thanks for ideas, examles, etc.. >.
Tue, 04 May 2004 02:56:54 GMT

Ivan Demkovitc #5 / 7	BarCode Scanner and VB Yes, there is lot of tools to produce barcode image, etc. But I need tools to communicate with scanners, which I cannot find anywhere Quote: > There are lots of off the shelf activex dlls you can buy > to do the job > try www.greymatter.co.uk > >-----Original Message----- > >I'm trying to predict all possibilities. > >And you can not use DLL with form as a remote component. > >Here wrapper class comes handy (From my point of view at > least) > >Some scanners communicate using serial port and some of > them have Terminal > >connected to the hub. Here you communicate thru TCP/IP > >I'm planning to write class that will access any kind of > server. > >I just can't find any related information on Scanner. > >> You won't need to use COM+, at least is not necessary... > >> There is a "huge" difference between MSCOMM and WINSOCK. > >> MSComm uses the communicaton port, while WinSock wraps > you to the TCP/IP > >> layer.... > >> If you use controls on a form, you WON'T need to > display it, just load it > >> using the following: > >> Load form1 > >> and then access the control. > >> If you access the control directly, like > form1.mscomm1.open, then the form > >> will be dipslayed instead.. > >> You won't need any special book, you will need to > understand how the > >> communication MSCOMM works and then look at the bar > code protocol...... > >once > >> you understand the communication basics, it doesn't > matter at all which > >> device is connected to.... > >> If you don't have any experiance with serial protocols, > just check the > >> MSCOMM descriptions and start to use the MSCOMM to read > and write to the > >> code-readed and understand the responses and the return > codes..... > >> stef > message > >> > Hi! > >> > We starting project in which we will communicate with > barcode scanners. > >> > It's completely new to me. So far I found that I will > need to use > >WinSock > >> > and MSCOMM controls. Also I found wrapper class > around MSCOMM control so > >I > >> > will not need to include form in project. > >> > I assume I can do same way with WinSock control. > >> > Scanner by itself have internal memory and i can > write DOS application > >> with > >> > C/C++ and upload to scanner. > >> > My question to NG: > >> > Is there any good books this kind of programming > oriented? > >> > Anybody heard of app written in VB using COM+ to work > with scanners? > >> > Web sources? > >> > I found 1 NG but it's dead > >> > What I can start with? > >> > Thanks for ideas, examles, etc.. > >.
Tue, 04 May 2004 03:19:56 GMT

Dick Grie #6 / 7	BarCode Scanner and VB Hi, I have a barcode example in my book (see below). I am not sure how you intend to use these things in combination, but I can try to answer specific questions. -- Richard Grier (Microsoft Visual Basic MVP) Hard & Software 12962 West Louisiana Avenue Lakewood, CO 80228 303-986-2179 (voice) 303-986-3143 (fax) Leave voice mail or fax that I can receive as email at 303-593-9315 Author of Visual Basic Programmer's Guide to Serial Communications, 2nd Edition ISBN 1-890422-25-8 (355 pages). For information look on my homepage at http://www.hardandsoftware.net. Use the Books link to order. For faster service contact the publisher at http://www.mabry.com.
Tue, 04 May 2004 05:52:35 GMT

Ivan Demkovitc #7 / 7	BarCode Scanner and VB Hi! Wrapper class I have I got from your WebSite and assume can do same with WinSock. Because the idea is to create object. Everything else is straight forward. Will try find book in Borders and see if there information I need. I can't ask specific questions, because I don't know anything about this :-( I'm just trying to get as much information about this field and all this serial devices, etc... Planning to build good app and As I can see it it will be 1 layer (DLL) to communicate with devices. 2 layer (DLL) to get info from 1st and provide Certain Interface. This way, in future I just need fallow this interface to work with different devices. All user services, Business Logic remains the same. Thats what I see and thats why I open to any suggestions. Quote: > Hi, > I have a barcode example in my book (see below). I am not sure how you > intend to use these things in combination, but I can try to answer specific > questions. > -- > Richard Grier (Microsoft Visual Basic MVP) > Hard & Software > 12962 West Louisiana Avenue > Lakewood, CO 80228 > 303-986-2179 (voice) > 303-986-3143 (fax) > Leave voice mail or fax that I can receive as email at 303-593-9315 > Author of Visual Basic Programmer's Guide to Serial Communications, 2nd > Edition ISBN 1-890422-25-8 (355 pages). > For information look on my homepage at http://www.hardandsoftware.net. > Use the Books link to order. For faster service contact the publisher at > http://www.mabry.com.
Tue, 04 May 2004 03:43:53 GMT

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