Taking Screenshot in linux Programmatically

[asadujjaman]

Hi, I need to write a program that can take snapshot of the
entire desktop, store the image data in an array and then
optionally save the array data as a Bitmap image on disk or
display it in another window.

I used to take screenshot in windows by first calling the
hdc = GetDC(GetDesktopWindow())
Then create a compatible DC and perform BitBlt().
How do i GetDesktopWindow() in linux. What about BitBlt()
Is it possible to access the display driver directly to accomplish
this?

Please help.

[sangoma23]

Hi asadujjaman,
If you have imagemagick installed, you can use this command:
import -window root screenshot.png

[munna_dude]

Hi asadujjaman,
If you have imagemagick installed, you can use this command:
import -window root screenshot.png

hi
i trie like this

[root@localhost untitledfolder]# import -window root screenshot.png
[root@localhost untitledfolder]#

is this taken the screenshot now.
if yes, where it is saved.
if no, how can i do this.

help me
thank you in advance

[sangoma23]

It didn't give you an error message so i'm guessing the command was found and worked. Have a look in the director that you ran the command ie. 'untitledfolder' and you should see a file called screenshot.png. Open with an image editor/viewer.

[asadujjaman]

Can anybody give me some code example or api reference?

[pavlo_7]

Can anybody give me some code example or api reference?

one thing you can do is look at the source code of imagemagick.

[asadujjaman]

one thing you can do is look at the source code of imagemagick.

ya. good advice.