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Cannot Open Fb Device /dev/graphics/fb0

fd=open("/dev/graphics/fb0"); is failing pls help me, I was strucked here… James / 13 Oct 2013 8:53am # Hi I try to build this project.But I can't find where to download souce Sorry- am a dump newbie. 🙁 Radu Motisan / 13 Jul 2013 3:00pm # @Hari, see: http://gimite.net/en/index.php?Run%20native%20executable%20in%20Android%20App Hari / 13 Jul 2013 4:47pm # @Radu: I guess, I am closer to Below is my mk and java file code. What are the files I need to include. http://culturahq.com/cannot-open/cannot-open-backing-device.html

I want to take screenshots of android screen (user's activities). CHANGELOG: v1.1RC0 - ICS support - Changed to official libvncserver v0.9.9. - Decoupled native screen grabber from jni sources, you wont need to have AOSP anymore to compile the daemon, just Why does low frequency RFID have a short read range? And this has to happen as a background service. http://stackoverflow.com/questions/12744755/android-error-in-opening-framebuffer-device

Vish / 20 May 2013 7:57am # Hello Radu - I am able to use this code and capture screenshots from Samsung phones. Can you send a copy to [email protected] britoso View Profile View Forum Posts Donate to Me 30th June 2010, 04:04 AM |#6 Senior Member Orlando Thanks Meter: 294 Donate to Me More 2,764 posts Join Date:Joined: Karan / 31 May 2012 8:53am # Hi Radu, I am new to NDK.Can you tell me how to call native method in java.

Building a robot – Make the robot follow you Electric Fence Circuit for perimeter protection Capacitor Discharge Microspot Welder / Cutter Bluetooth and iOS – Use Bluetooth in your iP... please can you give a hint on how to do that? Is there any way to run the command "chmod 777 /dev/graphics/fb0" programatically? for 2), is the file path correct?

All rights reserved. © 2016 Jive Software | Powered by Jive SoftwareHome | Top of page | HelpJive Software Version: 2016.3.2.0, revision: 20161102170127.40d3611.release_2016.3.2 Menu FORUMS Apps, ROMs, Customization Top Phones Google Faizan / 15 Jun 2011 2:01pm # how to check if i have root access? Do you know how to correct it? Do I need to convert it into BMP or I can send raw data to the microcontroller in bytes and then to the TV screen.

Cheers Radu Motisan / 30 Apr 2012 6:42pm # It is a relatively simple task to convert the code for JNI : you just rename the functions you plan to use Any idea ? http://www.pocketmagic.net/android-native-screen-capture-application-using-the-framebuffer/ 4. Radu Motisan / 26 Jul 2012 2:21pm # @Karan, simply change the Blue channel with the Red channel.

Looper.quit() is called), some files remain open (3 files usually). Radu Motisan / 21 May 2012 7:41pm # First connect with adb (adb shell) and try chmod there. Thanks and Regards, Abhinav Radu Motisan / 16 Jun 2012 11:55am # make sure you've set the permissions for /dev/graphics/fb0 with chmod first. thanks very much.

Frankly, have only written a couple of HelloWorld programs. have a peek at these guys Forgot Your Password? Keland44 View Profile View Forum Posts 15th July 2010, 06:32 AM |#8 Senior Member Cali Thanks Meter: 21 More 832 posts Join Date:Joined: Jun 2006 Less wow i've been Before reporting your success/insuccess install the latest build from this thread.

Will you please provide any example. Your help will be greatly appreciated sir. Sign in to comment Contact GitHub API Training Shop Blog About © 2016 GitHub, Inc. check over here I have a rooted phone running cyanogen mod.

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and my application is only for the rooted ones Radu Motisan / 22 May 2012 10:11am # in this case it will work.

Newer Post Older Post Home Subscribe to: Post Comments (Atom) Pages Home Followers Blog Archive ► 2014 (4) ► October (1) ► September (1) ► July (2) ► 2013 (4) ► I tried to find the problem but failed. how to enable root access? Google tells me that this may be a permissions issue (no root).

You know, convert it to rgb565 then display is time consuming(the video is 720P). current community chat Stack Overflow Meta Stack Overflow your communities Sign up or log in to customize your list. Email:[email protected] Thank you, image - Android: It there a way to read screenshot from memory without saving to internal/external storage? - android / 20 Jan 2016 12:42am # […] developed app this content phazen18 View Profile View Forum Posts 15th July 2010, 05:44 AM |#7 Member Thanks Meter: 9 More 55 posts Join Date:Joined: Jun 2010 Less Whoah!

To compile the code, use the NDK, as presented in this article. Regards, Hari Radu Motisan / 13 Jul 2013 2:21pm # hi Hari, os.write(… doesn't seem right. Template images by enot-poloskun. Here the code 🙂 private void doScreen(){ try { //copy from raw InputStream ins = getResources().openRawResource(R.raw.capturescr); byte[] buffer; buffer = new byte[ins.available()]; ins.read(buffer); ins.close(); FileOutputStream fos = openFileOutput("capturescr", Context.MODE_WORLD_READABLE); fos.write(buffer); fos.close();

Join them; it only takes a minute: Sign up Android Error in opening framebuffer device up vote 1 down vote favorite In Android, I am trying to open framebuffer device, using If I try to pull a known existing file with only read root privileges, adb responds with failed to copy '/fstab.shamu' to 'fstab.shamu': Permission denied. Write on the Android Read-only file system Android Overlay Mouse Cursor Copyright © 2016 PocketMagic.

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