How to take a picture from a digital camera connected to a computer via a USB cable using vb.net or asp.net or C #?

Question

I am writing a window editing application using vb.net/c#. I have a requirement for capturing photos from a digital camera connected to a computer.

How can I capture a photo from a USB digital camera device in a Windows application?

Answer 1

If you use the Windows image capture library, you will see events there for shooting new events in the camera. I had a similar requirement and wrote a test setup; we went down to the local camera store and tried each camera. The only cameras we could find that supported this functionality were Nikon D-series cameras.

We found that with most cameras you can’t even take a picture when they are connected. When you plug them into a USB port, most cameras switch to mode where the only thing they will do is transfer data. A quick way to find out if the camera will work at all is to connect it to a PC, and then try to click on the picture. If this allows you to do this, you have a chance. It must also support PTP.

Answer 2

It depends on the interface that the camera exports. If this is the standard mass storage interface, you simply use the standard file interface, i.e. You will see the camera as a removable disk and you can use the standard operation Create / Read / Write / File.
Many new cameras have a ptp (Picture transport protocol) interface. Therefore, you will need to use the Windows Image Acquisition API .

You can find useful after link . If I understand correctly, this is sample code for exactly what you are looking for. Google is your friend :)

One more information: many cameras will support both mass storage and ptp interfaces, and it will be selected by the camera user interface. In automatic mode, the camera is likely to switch to the ptp interface.

Answer 3

I assume that you want to activate the action with the image from the computer to which the camera is connected. If so, then the first thing I would like to do is search the API for this particular camera model. I do not believe that there is a standard protocol / structure for interacting with digital cameras, in addition to accessing a memory card inside the camera.

Answer 4

Typically, the camera appears as a removable disk when connected.

So, for a Winforms application, just let the user select the drive and image that you want to download. You can perform any processing as soon as you have a FileStream image.

In ASP.net, you will need the FileUpload control in which the user can select the drive and image to download. Processing of this time will be done through a MemoryStream in the HttpRequest.Files object.

Hope this helps.

Answer 5

It depends on your camera.

Many cameras will simply be mounted as USB storage devices. If so, then you can simply copy the file from the visible file system, like any other file to an external drive.

If the camera does not make its contents accessible in this way, you need to look at the camera driver documentation to find out how they recommend interacting with it.

Answer 6

This will depend on the brand of camera. Below is the link for Canon .