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Reading data from a device driver?

Started by branhield Jan 12, 2007 at 9:48 AM 5 replies 950+ views

Original Post

Jan 12, 2007 at 9:48 AM

I want to write an application that reads frames from my webcam and displays it. What is the easiest way of obtaining data from the driver programming in C under Windows XP. I'm having a hard time finding in the msdn jungle as I'm pretty new to this type of programming.

rip-off

Jan 12, 2007 at 10:03 AM

You wouldn't contact the driver directly, that could cause all sorts of issues.

I'm sure there is a win32 API for camera access, but I don't usually code in raw win32 so I wouldn't be sure what Im looking for.

Mescalito

Jan 12, 2007 at 10:35 AM

I've never done something like that; but i think you should find some informations
about the VFW (Video For Windows); there is an include VFW.h somewhere :)

branhield

Jan 12, 2007 at 11:17 AM

Okay thanks. So it can't be done like in unix? By just reading data from the device file?

iliak

Jan 12, 2007 at 2:37 PM

Hint... If you need I can send you my webcam to texture in opengl functions.

iliak

Jan 12, 2007 at 2:42 PM

Here is the source code.

LessBread

Jan 12, 2007 at 3:28 PM

Device Input and Output Control (IOCTL) The DeviceIoControl function provides a device input and output control (IOCTL) interface through which an application can communicate directly with a device driver.

Another usefull link: Windows Driver Kit

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