screenshot

问题 I am trying to take a screenshot with the pyautogui module, but keep getting this error >>> image = pyautogui.screenshot() Traceback (most recent call last): File "<stdin>", line 1, in <module> AttributeError: module 'pyautogui' has no attribute 'screenshot' Is there something I'm missing? The chapter in Automate the Boring Stuff with Python said that as I'm on Windows, I shouldn't need to download anything other than pyautogui itself for this to work. Anyone know why this might happen?

问题 I want to have a function that make a snapshot of the iframe and append to the other area of the webpage. The codes should look like: Html: <iframe src="http://edition.cnn.com/video"></iframe> <button id="btn_screenShot" name="screenShot">Grab a image</button> <div id="screenShot-result"></div> JS: function screenShot(iframe) { //what can I do here? //transform the page in <iframe> to a image type, jpeg,png or any other! } $('#btn_screenShot').click(function(){ var imgPath = screenShot

问题 I'm working on a project, a client-server application named 'remote desktop control'. What I need to do is take a screen capture of the client computer and send this screen capture to the server computer. I would probably need to send 3 to 5 images per second. But considering that sending BufferedImage directly will be too costly for the process, I need to reduce the size of the images. The image quality need not to be loss less. How can I reduce the byte size of the image? Any suggestions?

问题 I am getting below error while capturing screenshot in Android Studio 2.0. I tried with 2 different tablets and with both of them I am getting this error. Unexpected Error while obtaining screenshot - java.lang.Nullpointerexception I have googled and also looked at different stackoverflow questions but didnt found any which can resolve this issue. I have recently installed Android Studio 2.0 and this could be a problem I dont know. 回答1: Restarting the Android Studio worked for me. It doesn't

问题 I am working on an idea that involves getting a full capture of the screen including windows and apps, analyzing it, and then drawing items back onto the screen, as an overlay. I want to learn image processing techniques and I could get lots of data to work with if I can directly access the Windows screen. I could use this to build automation tools the likes of which have never been seen before. More on that later. I have full screen capture working for the most part. HWND hwind =

问题 I use below code to take screenshot from a WebView . it works well in Android 6 and lower versions but in Android 7 it takes only the visible part of the webview. // before setContentView if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) { WebView.enableSlowWholeDocumentDraw(); } ... // before set webview url webView.setDrawingCacheEnabled(true); // after html load complete final Bitmap b = Bitmap.createBitmap(webView.getMeasuredWidth(), webView.getContentHeight(), Bitmap.Config.ARGB

问题 I am working on an app, which uses the frontcamera to simulate a mirror for the person using the app. I have implemented a "Head-up-Display" which is in front of the cameraview and displays some stuff. This works fine at the moment. Now I'd like to implement a method to take a screenshot every 5s. But how to take a screenshot? I tried one possible solution, but this just takes a screenshot of the HuD without the mirror, because I have to pass a view (v1) to this method: // create bitmap

问题 I know how to take and save a screenshot to the photo library. I do this using the code below. I would like to replace my level scene button images with screenshots of my gameScene. Say my image buttons are 150x150. How can I achieve this? func takeScreenShot(scene:SKScene) { let bounds = self.scene!.view?.bounds UIGraphicsBeginImageContextWithOptions(/*CGRect(x: 0, y: 0, width: 100, height: 100).size*/bounds!.size, true, UIScreen.main.scale) self.scene?.view?.drawHierarchy(in: bounds!,

问题 I am using this wonderfully elegant piece of code Getting a screenshot of a UIScrollView, including offscreen parts to capture the entire contents of a UITableView to be exported to a UIImage. UIGraphicsBeginImageContextWithOptions(self.controller.tableView.contentSize, YES, 0); { CGPoint savedContentOffset = self.controller.tableView.contentOffset; CGRect savedFrame = self.controller.tableView.frame; self.controller.tableView.contentOffset = CGPointZero; self.controller.tableView.frame =

问题 I want to grab screen of my QML application. But my root QML object is ApplicationWindow , so I can't use QQuickView to show it. Instead I have to use QQmlApplicationEngine . I know how to take screenshot with QQuickView ( QQuickWindow::grabWindow ), but don't know how to take it with QQmlApplicationEngine . My main file: int main(int argc, char *argv[]) { QApplication app(argc, argv); ApplicationData appData; QQmlApplicationEngine engine; engine.load(QUrl("qrc:///main.qml")); return app.exec