It works but it only stores one frame from preview and this is not what I want. I think MS doesn't like programmers and that's why it released WMF. I can save it as jpg but it is not compressed enough. Furthermore the image is obtained in function SampleCB instead of BufferCB and is in some strange format. I know the problem is not in camera, because in the it works in the Camera application. (BTW This is an advice almost ten years old.) After I compiled the application with this header I was able to read high resolution picture but I need to wait a few seconds which is unacceptable. You need to add header file from elder SDK. I continued to study the article.Įverything seems to be clear but you need to implement your class which inherits ISampleGrabberCB marked as deprecated here. However, you can also use DirectShow to capture an image.' I tried to explore the WIA. For more information, see 'Windows Image Acquisition' in the Platform SDK documentation. The first advice which the article gives you is not to use it: 'The recommended way to get still images from the device is to use the Windows Image Acquisition (WIA) APIs. When I had found this site I thought I won and my task was almost finished.

If you set a higher resolution for preview the video is not fluent.īest approach I could achieve is from an article called 'Capturing an Image From a Still Image Pin' available here. You can simply use GetCurrentImage from IVMRWindowlessControl but this takes only one frame from preview with low resolution. But where is the function? I did not find it. One would expect this should be just one function call. Ok, now I have a video preview and I need only to take a photo. You need hundreds of lines of code to see a video preview. You can use VFW for capture a video or single frames to an avi file. The only think I miss here is a 'TakePhoto' function. There are only a few lines of code needed for seeing video from camera. I have written 'unfortunately', because I think this is the only which is easy to use. This library is unfortunately marked as deprecated but it seems it still works. After some googling I found there are four main libraries for capturing video in Windows. Knowing nothing about video capturing in Window I started by searching suitable library. I'll describe my hopeless steps awaiting there will be somebody who could be able to show me a way. Also I am very confused from MS documentation, lot of things are deprecated and nowhere mentioned what replaces them. Now I am only able to take high resolution photo which is delayed or take a photo in time but low resolution. I am trying to use DirectShow for doing it. It should have same behavior as the Camera application in Windows 10. I am developing an C++ application which should use an USB camera to capture high resolution photos.

Cs cz became too big resolution fix