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How to take a screenshot programmatically on iOS
...entImageContext();
UIGraphicsEndImageContext();
NSData *imageData = UIImagePNGRepresentation(image);
if (imageData) {
[imageData writeToFile:@"screenshot.png" atomically:YES];
} else {
NSLog(@"error while taking screenshot");
}
...
How to add an image to a JPanel?
I have a JPanel to which I'd like to add JPEG and PNG images that I generate on the fly.
14 Answers
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How can I tell if my server is serving GZipped content?
...g gzipped.
Compare that to this very page that you are on and look at a png file, you will see no such designation.
Just to be clear, it isn't because one is a jpg and one is a png. It is because one is gzipped and the other one isn't.
Previous Answer
In Chrome, if you pull up the Develope...
How to darken a background using CSS?
...t.net/fs71/i/2011/274/6/f/ocean__sky__stars__and_you_by_muddymelly-d4bg1ub.png);
}
Reference: linear-gradient() - CSS | MDN
UPDATE: Not all browsers support RGBa, so you should have a 'fallback color'. This color will be most likely be solid (fully opaque) ex:background:rgb(96, 96, 96)....
Match two strings in one line with grep
...m not doing this correctly? Take a look at what I did: i.imgur.com/PFVlVAG.png
– Ariel
Jul 27 '15 at 18:13
1
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Live-stream video from one android phone to another over WiFi
...laying it in real time is a really complex thing.
I suggest you work with PNG's only. In my implementation What i did was capture PNGs using the host camera and then sending them over the network to the client, Which will display the image as soon as received and request the next image from the hos...
How can I read command line parameters from an R script?
... <- as.integer(args[3])
rm(args)
# Some computations:
x <- rnorm(n)
png(paste(name,".png",sep=""))
plot(start_date+(1L:n), x)
dev.off()
summary(x)
Save both files in the same directory and start exmpl.bat. In the result you'll get:
example.png with some plot
exmpl.batch with all that wa...
IE8 issue with Twitter Bootstrap 3
...tive; background-size: cover; background-image : url("../myPics/leftHand.png"); background-repeat: no-repeat; background-size: contain; } however, it is not responsive in IE8
– Hosein Aqajani
Dec 4 '16 at 12:46
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How can I force browsers to print background images in CSS?
...e, if your current CSS looks like this:
body {
background:url(images/mybg.png) no-repeat;
}
At the end of your stylesheet, you add:
@media print {
body {
content:url(images/mybg.png);
}
}
This adds the image to the body as a "foreground" image, thus making it printable.
You may need to ad...
Set opacity of background image without affecting child elements
...Take your image into an image editor, turn down the opacity, save it as a .png and use that instead.
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