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Hello again. I'm back with another random and mostly useless request; anyone have or know of a component for VB.Net that captures feed from a webcam (through a USB port if you need to know)? I'm thinking it would be a window within the form, like the browser control, and the video would play on it. If there is no such component, then I could use some source code (maybe I'll code my own component  ).
Thanks for the help!
As I sit here, I contemplate the last words of Socrates: "I drank what?".
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Go to the site of the webcam's company and see if they have a developer site or an SDK. Logitech's is http://developer.logitech.com[^]. You can fill out a small survey, then download the SDK which will come with the stuff you want.
RageInTheMachine9532
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Mine's actually an Intel, but I'll check out their developer site. Thanks for the help!
As I sit here, I contemplate the last words of Socrates: "I drank what?".
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Ewwww... Intel doesn't have an SDK for their cameras. What they do have is links to an Open Source, on SourceForge, Computer Vision project called OpenCV. They also direct you to use Microsoft's DirectX, Video for Windows SDK, and Device Driver SDK. That's one of the reasons why I didn't pick Intel's hardware for a webcam.
RageInTheMachine9532
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Blarg... figures. Heh. Well, I was planning on getting a new one at some point anyway, and when I am, I'll take that into consideration (i.e. I'll never get an Intel again). Thanks again for the input!
As I sit here, I contemplate the last words of Socrates: "I drank what?".
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Check this site:
http://www.banasoft.net/AVPhone.htm
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I have a VB application that needs to do a lookup on a dataset that has been filled early in my program. A FOR loop finds the data, but runs slowly.
I have been unable to locate documentation in VS that describes how to do this.
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I have a legacy business application written in VB 6.0. (I expect I will need to upgrade this to VB.NET at some point.).
I need to activate this from a custom URL link on a web page in IE, passing parameters into it via the URL. This will bring up a form in the VB app from which I can hit a button and return to the IE window page, passing the return values again as a URL. Does anyone know how to accomplish this? I've looked at 'monikers', but I really don't understand how to use these and would appreciate some sample code from someone who has done this beforehand
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Let me get this straight:
On a client machine with a web browser, go to a URL and have the server launch a VB6 Windows Forms App (not a web app), the server runs the app but the client sees the user interface and, pass parameters to the app and pass return code back to the client to some other app waiting there.
RageInTheMachine9532
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Almost there: I expect that the browser, not the server, will launch the app in this case. I think it might have to be done via a URL moniker, like you get on the http://www.bitzi.com site. These will activate file sharing programs such as KaZaA and pass the download parameters into the program. My additional requirement is that the Windows Forms app can activate the browser instance (IE in this case) that created it and get it to navigate to a URL on completion of the process. Simple, eh? :-/
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Monikers are used to tell a browser what application to launch based on the contents of the html page. For example, a PDF file moniker will tell the browser to launch AcrobatReader to render the content PDF content.
You can setup links to launch various programs, like Kazaa, but Kazaa won't return anything back to your browser since it's not written to do so.
Also, your windows app would have a difficult time determining which browser launched it, unless there was only one browser window open. Telling the existing browser to navigate to another URL would not be a trivial task.
RageInTheMachine9532
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I Dim a graphic “Public Ax1g1 As Graphics = MYform1.CreateGraphics” and the call the “bitblt” function to capture the image and then I release the handle “Ax1g1.ReleaseHdc(dc1)”
On any subsequent call to this class “Ax1ThumbnailClass.AxCaptureImage” I get an invalid parameter exception on Ax1g1.ReleaseHdc(dc1).
I’ve tried not releasing the handles and I do not get the exception but the captured image is blank.
Help greatly appreciated!!!!
********************CALLING CODE***********************
Ax1Thumbnail.AxCaptureImage(MYform1.AxWebBrowser1.Location.X, MYform1.AxWebBrowser1.Location.Y)
Myform2.thumbScr1.Image = Ax1Thumbnail.Ax1Image.GetThumbnailImage(50, 50, Nothing, Nothing)
Public Class Ax1ThumbnailClass
Public Ax1g1 As Graphics = MYform1.CreateGraphics()
Public Ax1Image = New Bitmap(150, 150, Ax1g1)
Public Ax1g2 As Graphics = Graphics.FromImage(Ax1Image)
Public dc1 As IntPtr = Ax1g1.GetHdc()
Public dc2 As IntPtr = Ax1g2.GetHdc()
Public Sub AxCaptureImage(ByVal Browser1 As Integer, ByVal Browser2 As Integer)
CallBitBlt.BitBlt(dc2, 0, 0, 150, 150, dc1, Browser1, Browser2, SSRCCOPY)
Ax1g1.ReleaseHdc(dc1)
Ax1g2.ReleaseHdc(dc2)
End Sub
End Class
Public Class bitbltClass
<system.runtime.interopservices.dllimportattribute("gdi32.dll")> _
Public Shared Function BitBlt(ByVal hdcDest As IntPtr, _
ByVal nXDest As Integer, _
ByVal nYDest As Integer, _
ByVal nWidth As Integer, _
ByVal nHeight As Integer, _
ByVal hdcSrc As IntPtr, _
ByVal nXSrc As Integer, _
ByVal nYSrc As Integer, _
ByVal dwRop As System.Int32) As Boolean
End Function
End Class
Thanks, GregC
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hi
i want to use the FtpCommand(API's function) with the command "Quote Site lrecl=80 recfm=fb" in VB6.but this FtpCommand function does not support this command and return an error with the subject of 500 INVALID COMMAND.i tried this function with other commands such as PWD,LS,GET,PUT but it also returns the same error,while this is the suggested function in MSDN for doing FTP.how can i use this function in my program specially with the command "Quote Site lrecl=80 recfm=fb"?i would be so happy if someone answers me.
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The '500 Invalid Command' is comming back from the server your trying to talk to. This means you've sent a command the server didn't recognize. Even though it looks right in VB6, what the API got from VB wasn't right, apparently. This is evidenced by the fact that none of the FTP commands are working. Post the code your using for setting up the call to FTPCommand and the declaration for FTPCommand so we can see whats going on.
RageInTheMachine9532
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hello
may i know how to put a dynamic form
into a static form
please teach me
thank you
Gary
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The only 'forms' you can stick into another form are Windows Forms setup for MDI.
Are you using VB6 or VB.NET? If VB.NET, are you talking about Windows Forms or Web Forms?
What do you mean by 'dynamic' and 'static' forms?
We need a bit more information to understand what your talking about.
RageInTheMachine9532
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im using vb6
and i have try using MDI
is successful
but with 1 problem
it wont open the form i want when i press a button
the form.show n form.hide wont work
why?
thank you for your reply
Gary
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Code samples! There is no way to explain why until we see what your doing, or not doing, correctly.
RageInTheMachine9532
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thank you for your help dave
unfortunately i have deleted it due to the result of failure and confuse
now i just plan to do normal linking coz MDI form i really dont understand
im a beginner in VB
if you can, can you send me a small/plain example
although in planet source code have it but it is quite hard for me to understand due to the module(.bas) that is available inside
if is not possible, it is ok
thank you for your help and advise
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thank you for your help dave
unfortunately i have deleted it due to the result of failure and confuse
now i just plan to do normal linking coz MDI form i really dont understand
im a beginner in VB
if you can, can you send me a small/plain example
although in planet source code have it but it is quite hard for me to understand due to the module(.bas) that is available inside
if is not possible, it is ok
thank you for your help and advise
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I've been working in Visual Foxpro forever and I've just recently learned VB.Net for windows forms and gotten pretty good at that. Now, I've spent the last week trying to learn web form development in VB.Net and can't figure out what's going on...
What looks and works great under "View in Browser" blows up on the Intranet. All of the labels, textboxes and buttons disappear. At one point I had everything disappearing under "View in Browser", but then I figured out I was using the wrong set of controls. Then I got it to where things looked good in the browser preview but disappeared when I hit F5 for a test run. Now, things that look good in the preview AND run on F5, disappear on the Intranet.
I understand that stumbling is ok, so long as you're stumbling forward. At this point though, I don't have time for stumbling. I need to get this one up right away.
========
Stewart
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"View in Browser" isn't meant to allow you to run and debug a web form.
If you have it running in Debug mode, and you need to release it on the Intranet:
* Compile in release mode
* Install .NET on the server
* Create a new virtual directory on the server
* Copy the \bin directory and *.as?x and web.config to the server
* Cross your fingers...
What a piece of work is man, how noble in reason, how infinite in faculties, in form and moving how express and admirable . . . and yet to me, what is this quintessence of dust? -- Hamlet, Act II, Scene ii.
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How do to do that? Pls help me. Suppose their same WORKGROUP. Pls give me a code.      
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The code is 42.
Perl combines all the worst aspects of C and Lisp: a billion different sublanguages in one monolithic executable. It combines the power of C with the readability of PostScript. -- Jamie Zawinski
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"The code is 42"... what is it?... I need a real source code which write by Visual Basic 6. hic... pls...
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