Controlling Exposure Level On A Microsoft Lifecam Studio Webcam
Apr 26, 2012
I would like to be able to control the exposure level on a Microsoft Lifecam Studio webcam. The webcam will be taking pictures of lit LEDs. There is a neutral density filter between the webcam and LED to prevent blooming from the really bright LEDs. There is one person who states he is able to control the features of the camera using the native DLLs:
These DLLs are installed by the Microsoft lifecam desktop software, where you can manually control the exposure, white balance, brightness, etc. I have not been able to get is software to work. When I put in the line. Dim x As New Microsoft.LifeCam.CameraList. I get a Microsoft.LifeCam.CameraList is not defined error message. Are there any ideas how I can control the exposure level of the webcam through my VB program?
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Sep 2, 2010
I have a Microsoft LifeCam Cinema Webcam. I have written a simple application thats STARTS the video capture, STOPS the video capture, captures a STILL image and CLEARS the still image on one form using TWO picture boxes....one to hold the STILL image and the other to show the VIDEO from the Webcam.
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May 23, 2011
I have a Microsoft LifeCam Cinema Webcam. I have written a simple application thats STARTS the video capture, STOPS the video capture, captures a STILL image and CLEARS the still image on one form using TWO picture boxes....one to hold the STILL image and the other to show the VIDEO from the Webcam.I am using the VFW(Video for Windows) API to interface to the Webcam and everything in the application is working as intended with NO PROBLEMS. I use No DirectX, No ActiveX/COM, No Intermediary file, just live video stream.I do however wish to control the ZOOM feature of the camera using the VFW API.(increase and decrease)
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Jan 16, 2012
I'm working on an application where I'm using an webcam image. I have code that works when using the built in iSight (It's an Apple running boot camp windows 7) camera. However after installing a second USB powered Microsoft Life Cam I am unable to connect to this second camera. When runnign this code I only ever get one input device:
Private Sub LoadDeviceList()
Dim strName As String = Space(100)
Dim strVer As String = Space(100)
[Code].....
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Mar 16, 2009
I have a Web Service Application Project in Visual Studio 2008. This is supposed to be an ASP.Net 2.0 project and at some point this has been rebuilt using 3.5.VS has kindly added in project level imports to System.Linq and System.Xml.Linq, but when I have re-targeted the project at 2.0 these project level imports have remained.Because the Web Service Application Project does not have the detailed window for editing project references I cannot find how to remove these project level imports.There is no .proj file which is where I would assume these were included.I cannot now build the project as it fails, even though I only get warnings (no errors reported) such as this:Namespace or type specified in the project-level Imports 'System.Linq' 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.
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Jul 3, 2010
So in Visual Studio, you can't have two projects X and Y such that X references Y and Y references X.In general, I can totally understand how having a circular dependency can be problematic, for a variety of reasons.But is it really not possible to compile two projects that are interdependent in this way? It seems to me that it must be possible, since (in my mind -- maybe I'm completely off-base about this) having two mutually dependent assemblies is really not so different from having two mutually dependent classes -- a case which is legal and can be compiled.
It would make sense to me if you said, "two assemblies cannot depend on each other because the compiler could not compile one before the other"; except that it seems you could make the same argument for two classes within the same assembly, and clearly the compiler can deal with this scenario just fine.
Basically the reason I'm asking is not that I have some desperate desire to do this thing that I know is generally ill-advised anyway. Specifically I'm wondering because it would be nice if I could have two projects -- say, MyProjectCS and MyProjectVB -- that existed basically as two mutually dependent parts of a single unit, and were only separate because certain parts were written in C# and other parts were written in VB.NET.
Is it possible to enable this behavior (in Visual Studio, or elsewhere, for that matter)? If it's not possible within any IDE, it it at least theoretically possible, or could mutually dependent assemblies not possibly exist? If it's not even theoretically possible, why not? In other words, how are mutually dependent assemblies different from mutually dependent code within a single assembly?
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Jun 15, 2010
It happens quite frequently, more times per day, that with Visual Studio 2010, during the debugging, when I used Immediate commands like:I receive the following error:
'NamedVariable' is not declared. It
may be inaccessible due to its
protection level.
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Mar 4, 2012
I am trying to create a dll in vb.net that can be used in vba however I seem to be falling short. I have uploaded the file I am attempting using visual studio 2010 express. I have set the com option to be visible and selected the lowest possible build structure. It is a pretty simple dll with only 3 functions that are publicly available however I can't seem to get vba to recognize it in the references. Is there a step I am missing?
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Mar 20, 2009
I have a Visual Basic project and when working and modifying code, the compiler will crash and then a message will say something like "Microsoft visual studio encountered a problem and was shut down." I've tried editing code from the solution and the project. Both produce the error. Usually occurs when adding an "IF...Then..." condition. May work for hours but then crash. Solution will compile and build.
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Aug 13, 2009
I'm making a simple image editor in VB.NET, and one of the functions is brightness/ exposure.this is how I'm doing it:
For i = 0 To img.Width - 1
For j = 0 To img.Height - 1
Dim s As Color = img.GetPixel(i, j)
[code]....
where 2 is brightness which makes it twice as bright.Only problem is this doesnt seem to work well because it does it, but takes about 30 seconds!
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Jan 16, 2009
I've started to use a Vista machine for development. In case it is significant: I'm using MSBee so that I can code in the Visual Studio 2005 IDE while still building against the 1.1 framework.On the Vista machine, when I tried to build a particular vb project, I got this error:
error BC30464: Namespace or type'Compatibility' in the project-level Imports 'Microsoft.VisualBasic.Compatibility' cannot be found.
The same project built fine on my old XP machine. I checked in this folder on my Vista machine:
C:windowsmicrosoft.netFrameworkv1.1.4322
...and sure enough, "Microsoft.VisualBasic.Compatibility.dll" was missing. So was "Microsoft.VisualBasic.Compatibility.Data.dll". Copying them from my XP machine to my Vista machine allowed me to build the project successfully.I'm just a bit puzzled as to why this happened. Why was "Microsoft.VisualBasic.Compatibility.dll" missing? I'm also not very comfortable with my chosen solution - copying the DLL manually. It works, but surely there must be a better way.
As far as the configuration:
Vista:
.Net Framework 1.1
.Net Framework 1.1 SP1
.Net Framework 1.1 SDK
[code]....
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Oct 15, 2011
I am using ASP.NET to develop a system. Would you mind to share with me whether the code can be encrypted or convert to DLL to prevent coding exposure to other?
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Jun 29, 2011
Windows 7; Visual Studio 2010; Visual Basic; Home UserQuite frequently during Visual Basic debugging Visual Studio hangs and requests that a notification be sent to Microsoft regarding the issue.I tried the links in response to
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Jul 2, 2009
I am trying to control an access database with my program.I am using Visual basic.net as a programming language.It's look like I can do a simple (read-navigate-update...) without writing code in Visual Studio 2008 by:1- new windows form application project.2- loading my data source (table).3- drag and drop to my form my table from Data ources tab after changing it to (Details).4- Visual studio will automatically make> ( data set - Binding source - table adapter - table adapter manager - binding navigator )
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Mar 29, 2011
i am trying to link my ms access database through a microsoft visual basics 2008. i have set up the connection using the Server Explorer by selecting the 'Connect to Database' button and navigating to your .mdb file.i can view the file from the vb software now but i cannot add to the database. when i i click add on the vb it allows me to type in the boxes. when i click save it also add to the amount of rows i have in the database but it doesnt update the database. when i preview the database it is not updated.
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Jul 6, 2011
Currently, I am attempting to send an email using VB.NET. Now, I have added a reference with this code: (I have added placeholders)[code]How can I get the references to work, for all of the Outlook items (Outlook.Application, Outlook._MailItem, Outlook, Outlook.Attachments, Outlook.Attachment) are either undeclared or undefined.
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Dec 18, 2011
is it possible to use water mark in microsoft visual studio 2008? if yes, how?
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Mar 28, 2012
I have a logitech webcam that I use to take pictures of customers to submit to a server/database. Utilizing AVICAP32.DLL calls, I was able to modify my VB.NET program to take these pictures via a button in my program.
My question is, it would me more convenient to my intended users to click the webcam button, instead of clicking on the button in my program.
Is this possible to do in VB.NET? and how can I do this?
If this is not possible to do with my logitech webcam than is there a Microsoft Webcam that can do this?
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Jun 21, 2010
I just want to ask if what is the best database that is compatible for microsoft visual studio 2008 and adobe dreamweaver cs3? And database that can store thousands of files. Because I will use this for my client inquiry of their bill on my water billing system and online inquiry.
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Sep 22, 2011
When i try to install Visual Basic Express 2010 and Visual C++ Express 2010, I get this error:Setup could not install the following component:Microsoft Visual Studio 2010 Express Prerequisites x64
I'm on Windows Vista Things I've tried: Deleting contents of %temp% folder
[Code]...
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Jun 9, 2011
I got problem in my vb.net program in publishing it. I am using Microsoft Visual Studio 2008, when I publish my program and I got the setup file and when i tried to run into another computer I got some error saying that it cant connect into the database. Actually I used msSQL 2005 server in my VS 2008.
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Dec 12, 2010
I am a visual basic developer and I use Microsoft Visual Studio 2010 Ultimate Edition. I've been making applications that can play only in my PC because it requires .NET Framework 4, which is not installed at even Windows 7 nor Windows Vista nor Xp. So, I decided to use Visual Studio 2008 which uses .NET Framework 3.5 SPI. It still doesn't run in common PCs. I believe it is pointless building applications that can perform only on programers' PCs. Is there any way to avoid using 4 or including it for the installation. I also downloaded .Net Framework 4.0 from this location [URL].. on a XP computer and my app couldn't perform because it was 3.5 SPI.
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Mar 17, 2010
i have this code that is trying to connect to my database on wampserver in microsoft visual studio 2008 but there is an error message from the sql server contained in the Ms visual studio saying i cant connect to a remote database.this is my code:what could be the problem?
[Code]...
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Aug 15, 2011
i m using Microsoft VS 2008 and in that VB.NET as the language the problem is i m not able to store connection string every time machine changes have to keep on changing the connection string
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Jun 22, 2009
How do I transfer data from Excel 2007 into Microsoft SQL Server Management Studio Express as shown below? I try copy and list of data in excel as shown in the screenshot.. But when I paste in Microsoft SQL Server Management Studio Express.. Only the first result is past inside..
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Jun 12, 2012
I am using the publish wizard in VB 2010 Professional for deployment as I tried the InstallShield and the Standard Build and cannot get support. My last resort is this wizard. Please help me I am getting the following 2 warnings. I downloaded MDAC 2.8 SP1 for warning 2 and after I run the program it doesn't upgrade and appear in VB2010. How can I install it in VB2010 Pro. Also How can I get the .Net.Framework.2.0 installed.
Warning 2 The 'SAP Crystal Reports Runtime Engine for .NET Framework 4.0' item selected requires 'Microsoft.Data.Access.Components.2.8'. Select the missing prerequisite in the Prerequisites Dialog Box or create a bootstrapper
package for the missing prerequisite. SendGlobalMobileAdvertisingBlasts
[code]....
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May 5, 2011
I have a parent and child report that I created in visual studio 2010 using winforms in vb.net. I have setup one text box in the parent report to go to the child report with the respective value as the paramter. However, when I click on the link I get the error:a data source instance has not been supplied for the data source 'dataset1'I realize that the dataset1 has to be filled, however I cannot figure out how to fill dataset1. I have researched the topic cand came with the following links:[URL]...
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Apr 19, 2011
The environment will not create a resource file for a newly created Windows Forms Application. When I add a button Visual Studio displays a dialog "File Exist". That'sall, plus an OK button. There is no file name or the file name is in unreadable characters.The dialog comes from Visual Studio because the title is "Microsoft Visual Studio".There is no resource file so it must be that the resource file cannot be created.I uninstalled and reinstalled Visual Studio 2008. It did not change anything.I believe the problem was caused by opening the same project rapidly twice on an i7 laptop. I have done this unintentionally before and I can testify that unpredictable
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May 13, 2010
I would like to know if I need to get permission from Microsoft to develop applications for Small local firms using Visual Studio 2010.
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Mar 12, 2010
The message "Could not find file 'Microsoft.Windows.CommonLanguageRuntime, Version = 2.0.50727.0'." started appearing after I attempted to publish my software. All previous versions of my software are affected as well. I have two projects in the solution. Both are written in vb. All versions used to work fine.
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