C# - Transmit With A Virtual Webcam Driver In .NET?
Feb 14, 2012
It's been a while since i've posted. Happy Valentine's day! Requirement: I would like to interface my .NET application to a "virtual webcam driver" for the purposes of SENDING image frames. I'm happy to use an open source .NET or COM component if that exists or indeed implement a "webcam driver" from scratch if someone can point me in the right direction. My first priority is the functionality.
My second priority is low dependancy on 3rd party libraries and tech (aside from .NET of course I'd prefer not to involve directshow if possible?
Trying to figure out if there is anyway built into windows 7/Vista/XP and/or Dpinst to verify that a driver is installed? I created a program that uses DPinst to install a driver and now I need to figure out how to tell the user that it is safe to close the program once the driver is install as the driver takes longer on some machines to install. Would anyone know how to get this to work?
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?
The short story is that I have a 5.1 audio system that is linked to my pc and I would like to make a tool to help me to transmit audio from my laptop to my pc to be played back.
I have a home network provided by a wireless router. (Bandwidth is about 54 mb/s so that shouldn't be a problem)
Router ip : 192.168.16.1 PC ip : 192.168.16.100 Laptop ip : 192.168.16.101
I want to be able to send a copy of the currently opened form to a number of remote PCs every couple of seconds and be able to view the form as it is received.Although I have been programming for a number of years, I have virtually no knowledge of reading and writing image data.
In my project, I got a page that creates guest users for a number of products chosen.Basically you tell the application how many users to create for each product you choose.When you click 'Save' I generate the guests, save their username + password (before encryption) in a csv file that I transmit at the end of the process, and finally redirect the user to the index page.The problem happens at the file transmission and the consequent redirection to a new action:
Private Sub DownloadCsv(ByVal csv As List(Of String), ByVal filename As String) Dim sb As New StringBuilder() For Each Str As String In csv
[code]....
What's happening is the page transmitting the file to the browser and never doing the redirect that follows.I read a bit on the matter and found out that once you add an Header to our Response object and Write a file, it will automatically close the Response. If I'm wrong, please correct me.How can I make it possible to transmit this file after the user has being redirected to the Index or Redirect to the Index after he either saves or cancels the file download?
I currently have a program that, when I select an option from a drop down menu, will transmit a character to a microcontroller. I then have to click another option after 10 seconds to send another character. What I would like to do is modify this program to transmit one character for a period of 10 seconds, then transmit another value for another 10 seconds and so on for a defined period of time, say 30 seconds in total.
I need some information on broadcasting front. I have a program which gives data every few minutes to my friends. The logic is data is prepared on a local computer, the file is then uploaded to my webserver and then the programs at friend's end download the file and process it.
Though the above logic works, but its plagued by time delays, uploading & downloading basically. Is there an alternate whereby the program on local computer which prepares & uploads file is able to broadcast data and client apps can read that data and work on it. For e.g. if you see apps that show live stock market data, the data is refreshed for so many stocks every sec. They use some other system similar to broadcasting I guess. In-order to transmit data fast how can I go about it?
I would like to know how can I transfer some data bits from one location e.g. Location X to the location Y. I am already moving MS (mobile station which I take as an image) from one location to other. Now I want to check or you can say add some data while MS is moving and make it reach successfully to location Y as I already can do with MS movement, mean to say data transmission along with MS and on that basis I want to find handover failure rate and if any data loss during the data transmission from x to y location. And check if the data delivered is successfully reached to location Y from Location X, check bits transmitted and bits received
i wrote small programm based on joyGetPosEx which read ION Drum Rocker commands as gamepad events and converted it to midi notes signal to MidiYoke or other virtual midi cable.With this program ION Drum Rocker xbox360 drums with cymbals can be used as midi device for PC. Also if edit source for read another command can be used any gamepad device as mididevice.If any someone have ION drum rocker drumset then try to test this program.
I have some issue with it, drumset do not transmit any commands which can be used for sensitivity of hits. But drumset have some sensitivity of hits if connected them to xbox360 console. Maybe problem in HID gamedevice driver, or joyGetPosEx?
Im working with a CD722UN Customer Display for our POS application. it comes with a USB2.0 connection and a installation package containing a driver etc. now, for my application. how should i do when i want to access this driver? at the moment i'm using the "CD722UN application"s .dll path but that can wary from clients OS etc. [Code] my first thought was to first check if there was a device installed in the device manager and somehow use the driver from there? [Code] what is the best solution?
I'm pretty sure the answer is no but I am curious, is it possible to write a driver in .NET code? I am talking more software driver here rather than hardware driver (ie something like a file system filter as opposed to a driver for a printer or something).
I'm starting to get into the microcontrollers and I was wondering if anyone had any experience using visual studio and/or visual basic writing drivers and application software for USB Devices and using different microcontrollers from Atmel and Microchip?
If you know of any good websites or anything out there that would get help get me started that would be great.
I have build an application in VB.NET (3.5) wich connects to an oracle DB. I works perfectly on my pc. However. When I install the app on a pc without oracle it will not connect to the DB on the server. Do I have to install somekind of driver on the client pc?
I seem to recall that there is an API which will return the INF file associated with a device driver but I'm drawing a blank. I want to get the path to the INF File, File Name Section Name and File Date.
I am working on a project that needs to using an activeX driver (libaray), a .ocx file. The driver have some properties and methods. I added the reference and have a new instance. When I try to put values to the properties, I got error messages from the driver.
Imports CBMCOMMLib Public Class Form1 Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load [URL] MaxTraces is one of the properties. Am I using the library correctly?
I have a requirement to convert a word file to PDF and to display it to users.It needs to be in PDF to prevent users making changes to the document.Only a few of the PCs which use the software have Word 2007 installed, most have Word 2003 but all have a third-party printer driver CutePDF installed.I would like to automatically convert the file to PDF using CutePDF without the user having to open a print dialog. In fact I don't want the user to have to do anything at all except request to view the document which will set the automatic process in motion.
Iīm using Windows 7, 64 Bit and Visual Basic form VS 2010 to develop an application.
I want to remove a HID driver with the Devcon.exe tool. Using the console (cmd.exe) with the following command, there is no problem. The driver ist removed immediatly.
So - we are FED UP with our medical records packaging (document imaging) system and want to create a simple filing interface for our scanners to use in VB. Part of this deal is getting VB to interact with a TWAIN Driver.
There is some code out there for ASP.NET and C# - does anyone know of a VB.Net based code I could look at?
I have spent part of my day trying to recreate the ASP into VB but the calls are just different enough to get interesting.
I'm working on a security type program that has a system tray that starts with windows and a driver to prevent it from being closed. Any ideas where to start?
I'm receiving this error from the ODBC SQL Driver as mentioned :- ERROR [07002] [Microsoft][ODBC SQL Server Driver]COUNT field incorrect or syntax error.
After some digging around both here and the www in general I have plucked the following code to allow me to install a non listed printer driver to my XP machine. Problem is I am unable to get it to function properly.
The first section of the code creates the port every single time with out fail on any machine that I have tried but doesn't seem to function with the addition of the drivers.
I am trying to install HP driver that have been downloaded for HP site (extracted into C:emp1hp3035 ). I am also trying the same with a HP 4730 printer but neither work. I know i'm over looking something but what??
from most of the sites I need both the .ink and the .dll references but the HP .exe when extracted give a scatter of .cab files. I have tried to extract the EN one and use the dll from there still no joy (this it the .dll reference below.)[code]...
I have been working with TWAIN driver for few days. I have learnt how to connect to the scanner or get the working scanners connected to the machine. I am having a problem now, eventhough i get connected to the scanner, I am not able to set the capabilities from my application. The scanner scans using the capabilities that are set on it but not from my application. I have looked at the sample code given with twain pro but even that doesnt set the capabilities of the scanner. For example if the scanner is set to 300 dpi and I set 200dpi from my application, the scanner scans with 300 dpi. It gives me an error saying that the value given is out of range.
