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+---- Thread: [Java] Grab region of screen (/showthread.php?tid=5177447)
Grab region of screen - quartzd - Feb 20, 2016
Hi im not really sure how to explain this problem but i want to be able to grab pixels from a rectangle region on a screen at position x1,y1 and x2,y2 and copy those exact pixels onto a form... hard to explain I think
Here is a basic image example
It would look like that..where the red rectanagle region is copied into the form as the image shows.. does anyone know how I could do this?
i.imgur com/iP8iIwp.jpg
(can't post links....)
If anyone can post the image here for me that would be nice thanks
* - MrOrang - Feb 20, 2016
You can get a picture of the entire desktop then only get the select area and save that image. Cant code atm so this is the only bit I can help.
* - Sogomn - Feb 20, 2016
Check out the class "Robot" in the "java.awt" package. Can do exactly what you want. Click.
* - quartzd - Feb 22, 2016
(Feb 20, 2016 08:08 PM)Sogomn Wrote: Check out the class "Robot" in the "java.awt" package. Can do exactly what you want.
Thanks I solved that problem...but now I need to make the bufferedimage transparent
* - Sogomn - Feb 23, 2016
(Feb 22, 2016 06:39 PM)quartzd Wrote: Thanks I solved that problem...but now I need to make the bufferedimage transparent
But your screen is not transparent. What do you mean exactly? Do you want to add an alpha channel? Simply convert it.
Code
public static BufferedImage convert(final BufferedImage image, final int type) {
final int width = image.getWidth();
final int height = image.getHeight();
final BufferedImage newImage = new BufferedImage(width, height, type);
final Graphics2D g = newImage.createGraphics();
g.drawImage(image, 0, 0, null);
g.dispose();
return newImage;
}Then call it like this:
Code
final BufferedImage alphaImage = convert(screenImage, BufferedImage.TYPE_INT_ARGB);