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Please do not post the same thing multiple times. The board software automatically flags certain posts as needing moderator attention. This happens the most often for new users. I'm pretty sure this is made clear at the time you attempt to post. Posting the same thing over and over again just makes that many more posts the moderators have to weed through later. This makes us sad. Don't make us sad. If your post/thread doesn't appear, just wait a while. Don't post it again. If it hasn't shown up by the next day, then you can try again. I normally go through posts in the mornings, and try to check a few times throughout the day, but I'm not here 24/7. There will typically be a significant delay before posts are approved. Just be patient.

Is possible PrintScreen or save in an image some part of the screen?

alberprimoalberprimo Posts: 37Registered Users
in iPhone SDK Development
Is it possible? I need save the sreen and send from iPad to a WebService... Concretly the problem is that i want simulate a sign in the screen and later save this sign in a NSData and send by email.

Some idea?

thanks for all!

Best regards!
Post edited by alberprimo on
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Replies

  • 1337Skittles1337Skittles Posts: 140Registered Users
    to take a screen shot of the screen you want renderInContext


    #include <QuartzCore/QuartzCore.h>


    [Background.window.layer renderInContext:UIGraphicsGetCurrentContext()];
    UIImage *viewImage = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    UIImageWriteToSavedPhotosAlbum(viewImage, nil, nil, nil);



    I think this works anyway..
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  • Duncan CDuncan C Posts: 8,014Tutorial Authors, Registered Users
    1337Skittles;402812 said:
    to take a screen shot of the screen you want renderInContext


    #include <QuartzCore/QuartzCore.h>


    [Background.window.layer renderInContext:UIGraphicsGetCurrentContext()];
    UIImage *viewImage = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    UIImageWriteToSavedPhotosAlbum(viewImage, nil, nil, nil);



    I think this works anyway..

    That's not quite right. You have to create an offscreen context, render the key window's layer into it, and the get an image from that context:

      UIWindow* theWindow = [[UIApplication sharedApplication] keyWindow];
      UIGraphicsBeginImageContext(theWindow.bounds.size);
      [theWindow.layer renderInContext:UIGraphicsGetCurrentContext()];
      UIImage *windowImage = UIGraphicsGetImageFromCurrentImageContext();
      UIGraphicsEndImageContext();
    Regards,

    Duncan C
    WareTo

    mug

    Animated GIF created with Face Dancer, available for free in the app store.
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  • alberprimoalberprimo Posts: 37Registered Users
    Duncan C;402862 said:
    That's not quite right. You have to create an offscreen context, render the key window's layer into it, and the get an image from that context:

      UIWindow* theWindow = [[UIApplication sharedApplication] keyWindow];
      UIGraphicsBeginImageContext(theWindow.bounds.size);
      [theWindow.layer renderInContext:UIGraphicsGetCurrentContext()];
      UIImage *windowImage = UIGraphicsGetImageFromCurrentImageContext();
      UIGraphicsEndImageContext();
    Thanks friend! It is perfect, but now i need save only a size of screen, concretly i need save (0, 744, 768, 180)...

    Some idea?
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  • Duncan CDuncan C Posts: 8,014Tutorial Authors, Registered Users
    alberprimo;404511 said:
    Thanks friend! It is perfect, but now i need save only a size of screen, concretly i need save (0, 744, 768, 180)...

    Some idea?
    I'm not sure what you are asking. You don't want to capture the whole screen, but only a part of it?

    Is the region you're capturing a specific view? That would make it easier.
    Regards,

    Duncan C
    WareTo

    mug

    Animated GIF created with Face Dancer, available for free in the app store.
    Flag • Off Topic Insightful Disagree Dislike Like Awesome
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