screen-capture | 易学教程

Capturing a Window that is hidden or minimized

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问题 I followed this tutorial (there's a bit more than what's listed here because in my code I get a window via mouse click) for grabbing a window as a bitmap and then rendering that bitmap in a different window. My question: When that window is minimized or hidden (SW_HIDE) my screen capture doesn't work, so is it possible to capture a window when it is minimized or hidden? 回答1: The PrintWindow api works well, I use it for capturing thumbnails for hidden windows. Despite the name, it is different

Render MATLAB figure in memory

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Are there any alternatives to using getframe and saveas for saving the contents of a figure to a raster image for further processing? Approach 1: getframe h = figure('visible', 'off'); a = axes('parent', h); % render using `scatter3()` or other plot function. content = frame2im(getframe(h)); This has the serious drawback of showing the figure to perform a screen capture in the call to getframe() and it is problematic when performing such a render in a loop (i.e. saving content at each iteration as a video frame). Approach 2: saveas h = figure('visible', 'off'); a = axes('parent', h); % render

How to prevent Screen Capture in Android

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Is it possible to prevent the screen recording in Android Application? I would like to develop an Android Secure Application. In that I need to detect screen recording software which are running background and kill them. I have used SECURE FLAG for prevent screenshots. But I dont know is it possible to prevent Video capturing of Android Screen also. Let me know how to prevent screen capturing (video / screenshots). RobCob I'm going to say that it is not possible to completely prevent screen/video capture of any android app through supported means. But if you only want to block it for normal

Capture iOS Simulator video for App Preview

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问题 Okay, so we can now submit video previews of our apps on the App Store. According to Apple we should do so with an iOS8 device and OSX 10.10. The problem is you have to have all the different devices (4\", 4.7\", 5.5\" and iPad). Is there an alternative to this? I am thinking of capturing a video of the simulator. The problem is the device screen is bigger than my FullHD monitor when shown in 100% resolution. Any solution that can capture a video right from the simulator in full resolution?

Capture screen of GLSurfaceView to bitmap

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问题 I need to be able to capture an image of a GLSurfaceView at certain moment in time. I have the following code: relative.setDrawingCacheEnabled(true); screenshot = Bitmap.createBitmap(relative.getDrawingCache()); relative.setDrawingCacheEnabled(false); Log.v(TAG, \"Screenshot height: \" + screenshot.getHeight()); image.setImageBitmap(screenshot); The GLSurfaceView is contained within a RelativeLayout , but I have also tries it straight using the GLSurfaceView to try and capture the image. With

Render MATLAB figure in memory

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问题 Are there any alternatives to using getframe and saveas for saving the contents of a figure to a raster image for further processing? Approach 1: getframe h = figure(\'visible\', \'off\'); a = axes(\'parent\', h); % render using `scatter3()` or other plot function. content = frame2im(getframe(h)); This has the serious drawback of showing the figure to perform a screen capture in the call to getframe() and it is problematic when performing such a render in a loop (i.e. saving content at each

How to capture the android device screen content? [duplicate]

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问题 Possible Duplicate: How to programatically take a screenshot on Android? How to capture the android device screen content and make an image file using the snapshot data? Which API should I use or where could I find related resources? BTW: not camera snapshot, but device screen 回答1: According to this link, it is possible to use ddms in the tools directory of the android sdk to take screen captures. To do this within an application (and not during development), there are also applications to do

How to capture the android device screen content? [duplicate]

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Possible Duplicate: How to programatically take a screenshot on Android? How to capture the android device screen content and make an image file using the snapshot data? Which API should I use or where could I find related resources? BTW: not camera snapshot, but device screen Joubarc According to this link , it is possible to use ddms in the tools directory of the android sdk to take screen captures. To do this within an application (and not during development), there are also applications to do so. But as @zed_0xff points out it certainly requires root. Use the following code: Bitmap bitmap;