overlay | 易学教程

C# “Lock” an overlay form to the position of another window

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问题 I am making an add on for a game, but I want it to reside as an overlay to the game's client area of the window. Basically when I start the add on, i want it to show on top of the game. The catch is if you minimize or move the window, I want the the form to stick with it. Anyone know of anything that can do the trick without having to hook directdraw? Thanks. 回答1: Here is a simple way to do this. First, you'll need this line in your form's using statements: using System.Runtime

css image mask overlay

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问题 I'm trying to get a transparent png frame image to hover over an img tag to create the look of a frame over it. I've tried multiple different approaches and none seem to work. The latest method I used was http://www.cssbakery.com/2009/06/background-image.html this doesn't seem to work either. HTML <div class="filler"> <div class="filler-picture"> <img src="../../media/img/test.jpg" alt="test" /> <div class="filler-mask"> </div> </div> </div> CSS .filler { padding-left:20px; height:361px;

How can I make a fullscreen overlay on the OS X desktop?

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问题 I want to make some kind of drawable surface that exists beneath the mouse cursor but above everything else rendered on the desktop. I am trying to create a "trail" behind the mouse. How can I do this in Cocoa and Objective-C? 回答1: You need to subclass NSWindow to create a borderless window and set its window level to something like NSScreenSaverWindowLevel - 1 . - (id)initWithContentRect:(NSRect)contentRect styleMask:(NSUInteger)aStyle backing:(NSBackingStoreType)bufferingType defer:(BOOL

How does the Android source overlays work?

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In the android source in the device/sample folder there is a folder called overlays . You see the same overlay folder in e.g. the cyanogen mods . What is this overlay folder? How does it work? What is it used for? Where can I read more about it? Thanks in advance For instance, imagine that you want to modify some files in Android source for your device (for instance, you want to add additional string to Launcher resources). It is not recommended to modify the actual sources of Android. Instead of this you create overlay that mimics the actual filesystem path layout of Android and put there

Configuring heatmap overlays using Google Maps API

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问题 I'm trying to use the Google Maps API to generate a heatmap of locations. It works, but the result is not very useful, since the parts rendered by the heatmap are small are hard to see: Nothing in the docs suggest a way to expand the heatmap to render in larger blobs. Is there an undocumented way of doing this or is this just a limitation of the API? Do I just need more data points? I've pasted the code I'm using below. <!DOCTYPE html> <html> <head> <meta name="viewport" content="width=device

Overlay not scrolling with UITableView - iOS

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问题 I have a UITableView class that uses the following methods to call a loading overlay when going to the next screen. The problem is that this loading screen does not scroll with the list... So if you scroll a little bit and click on something, the loading screen doesn't show (because it's at the top). How can I get the loading screen to stay on top of the UITableView at all times? Please know that each UITableView is contained within a UINavBar, which is contained within a UITabBar. Here is my

How to overlay geom_bar and geom_line plots with different number of elements using ggplot2?

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Assuming I have two data.frames with different data but in the same range of x-values a <-data.frame(x=c(1,1,1,2,2,2,3,3,3), y=c(0.3,0.4,0.3,0.2,0.5,0.3,0.4,0.4,0.2), z=c("do","re","mi","do","re","mi","do","re","mi")) b <- data.frame(x=c(1,2,3),y=c(10,15,8)) Both, a and b have the same range of X values (1,2,3) but while a is a data.frame with 9 rows, b is a data.frame with 3 rows. I use geom_bar in order to plot the distribution of values of a, like this: ggplot(a, aes(x=x, y=y, fill=z)) + geom_bar(position="stack",stat="identity") + ylab("") + xlab("x") And I use geom_line to plot b data,

Draw hole on UIBlurEffect

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问题 Xcode 8.0 - Swift 2.3 I have an internal extension to create blur layer that works great: internal extension UIView { /** Add and display on current view a blur effect. */ internal func addBlurEffect(style style: UIBlurEffectStyle = .ExtraLight, atPosition position: Int = -1) -> UIView { // Blur Effect let blurEffectView = self.createBlurEffect(style: style) if position >= 0 { self.insertSubview(blurEffectView, atIndex: position) } else { self.addSubview(blurEffectView) } return

How to draw a line between points in google map in Android

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I already wrote a program that read locations from android GPS ; each locatin(long , lat) will be sent to remote server to save it and display it in a website map. what I'm trying to do now is to display my path in android by drawing line between the points I didn't find any sufficient answer until this moment! so how this can be done? You can draw line between points as: public boolean draw(Canvas canvas, MapView mapView, boolean shadow, long when) { Projection projection = mapView.getProjection(); if (shadow == false) { Paint paint = new Paint(); paint.setAntiAlias(true); paint.setColor

How can I overlay multiple images using HTML/CSS or JavaScript, without using position:absolute?

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I am a Google lover, and as thus I've hunted around pretty thoroughly before arriving here. Perhaps I'm just being inattentive, or my skimming habit is coming back to bite me, but I don't believe I've found the answer yet. I've seen solutions to similar problems, but I don't think any of them are applicable here. I want to overlay two PNGs of the same size in an element ; this in itself is simple, but the context is a little more complex. I've worked with HTML/CSS for a long time now, and I'm learning JavaScript currently; as such, I've been making an HTML game. This game involves creating