frame

How are environments, (en)closures, and frames related?

六月ゝ 毕业季﹏ 提交于 2019-12-03 08:13:07
问题 I want to better understand how environments, closures, and frames are related. I understand function closures contain an environment, environments contain a frame and an enclosure, and frames contain variables, but I'm a bit fuzzy on how they interact with one another. Perhaps an example of what's going on during a function call would help? Or maybe a diagram? 回答1: UPDATE R-lang defines an environment as having a frame . I tend to think about frames as stack frames , not as mapping from name

First frame of video

妖精的绣舞 提交于 2019-12-03 08:08:23
I'm creating a single page application with Golang on the backend and javascript on the frontend. I´d like to find a way how to get the first frame of a video using Golang. First, I upload a .mp4 video file to the server. It is saved on the server. Is there a way to get the first frame of this video, using Golang? It should be possible to do it using Javascript on frontend, but I don't feel like it is the right way to solve this issue. I have no idea how to implement it using Golang, and I haven't found any useful libraries, not even built-in functions that could help me to solve this. Every

Possible to prevent our website from running inside another domain's frameset or IFrame?

淺唱寂寞╮ 提交于 2019-12-03 07:53:11
We've been having an problem recently where other sites are running our e-commerce site inside a frameset where our site (with the offenders affiliate id tacked on) is the only content in a single full width frame. So essentially it looks and feels like our site with their URL at the top. We can cut off their affiliate id, which would make it pointless for them to do, but this doesn't prevent future offenders from doing the same thing until we find out about it. Is there a generic way (through JavaScript that appears on every page perhaps?) to prevent this from happening? Note that adding

When you use Frame or JFrame in Java? [duplicate]

*爱你&永不变心* 提交于 2019-12-03 07:38:41
Possible Duplicate: What is the difference between swing and awt? I often see that JFrame is used a lots. But sometimes, I also see that programmer use Frame in their example. So could you tell me the advantages/disadvantages of them? Well let me break it up for you.............. Before jumping into Frame Vs JFrame, let me explain you about AWT and Swing. AWT : - It has a Platform Dependent Look and Feel . - So it uses the Native GUI components. - As AWT uses the peer components, its called as Heavy Weight Component . Swing : - It has a Platform Independent Look and Feel . - And its because it

What is the maximum iframe width of a facebook page? (July 2011)

梦想与她 提交于 2019-12-03 07:38:17
What is the maximum iframe width of a facebook page? It was 520px. As with a Canvas Page, the amount of space available to your app is bounded by the outer context of Facebook. Since your app is also loaded inside of Facebook Page, the space is smaller (520 pixels) than what is available to on a Canvas Page. from FB docs (yes i know that doc about canvas and it's only mentions iframes, but i cannot find quickly reference to full iframe documentation) Important Update On the March 30th 2012, Facebook changed this to 810px , to match the new design of timeline. And here you have a screenshot of

How to set a JavaFX Stage/Frame to Maximized

二次信任 提交于 2019-12-03 06:30:33
问题 I'm using JavaFX 2. I want my frame to open maximized but I'm not seeing a way. I searched a bit on the internet without success. For the stage I see setFullScreen() and setIconified() but I don't see anything like setMaximized() . 回答1: When evaluating the sourcecode of the Ensemble.jar provided with the samples of JavaFX 2.0 SDK, the currently valid way to achieve window maximizing is Screen screen = Screen.getPrimary(); Rectangle2D bounds = screen.getVisualBounds(); primaryStage.setX(bounds

Reading video frame-by-frame under iOS

只愿长相守 提交于 2019-12-03 05:21:27
问题 I'm looking for a way to retrieve the individual frames of a video using iOS API. I tried using AVAssetImageGenerator but it seems to only provide frame to the nearest second which is a bit too rough for my usage. From what I understand of the documentation, a pipeline of AVAssetReader, AVAssetReaderOutput and CMSampleBufferGetImageBuffer I should be able to do something but I'm stuck with a CVImageBufferRef. With this I'm looking for a way to get a CGImageRef or a UIImage but haven't found

How to make TFrame with rounded corners?

空扰寡人 提交于 2019-12-03 04:35:00
问题 I want to make a component based on a TFrame with TLMDShapeControl (for drawing round corner background) and a TEdit control (that can be also a TComboBox or a TDBEdit and so on). After that I will use the "Add to Palette" command to turn it into a Reusable Component Control. The problem in that I need it to be width flexible and for that I had the idea of turn everything inside the Frame alClient and the TEdit with 5 pixel margin so the user can see the rounded corners. It was terrible

How to remove the device's frame on Android Studio's emulators

本小妞迷上赌 提交于 2019-12-03 04:15:40
I am making an android app on Android Studio and I have this emulator for Nexus S. When the emulator is running, it shows the frame of the device. I want the emulator to show the screen of the device only. I've tried looking in the settings but can't help it. Thanks. Tiger98 Step 1 : Click on AVD Manager Step 2 : In the pop select the EDIT AVD Step 3 : Uncheck Device Frame Sept-1: Open ADV Manager Step-2: Click Edit in the specific Device emulator Step-3: Disable device frame option Step-4: Click Ok and restart the emulator 来源: https://stackoverflow.com/questions/32766821/how-to-remove-the

Calculating FCS(CRC) for HDLC frame

[亡魂溺海] 提交于 2019-12-03 03:55:08
I have the following frame: 7e 01 00 00 01 00 18 ef 00 00 00 b5 20 c1 05 10 02 71 2e 1a c2 05 10 01 71 00 6e 87 02 00 01 42 71 2e 1a 01 96 27 be 27 54 17 3d b9 93 ac 7e If I understand correctly, then it is this portion of the frame on which the FCS is calculated: 010000010018ef000000b520c1051002712e1ac205100171006e8702000142712e1a019627be2754173db9 I've tried entering this into a number of online calculators but I cant produce 0x93ac from the above data. http://www.lammertbies.nl/comm/info/crc-calculation.html with input type hex. How is 0x93ac arrived at? Thanks, Barry Ilya First of all, CRC