Capture Screenshot and save in Mac app ( cocoa )

Following code can explain you to capture screen and save it to specified format


// Follows code can capture the screenshot (in .png) and save it on specified folder

- (IBAction)SavePNG_BtnClicked:(id)sender

{

    CGDirectDisplayID displayID = CGMainDisplayID();

    CGImageRef imageRef = CGDisplayCreateImage(displayID); //screenshot

    

    NSString *path = [@"~/Desktop/public.png" stringByExpandingTildeInPath];

    [self savePNGImage:imageRef path:path];

    

    CFRelease(imageRef);

    

}

// Follows code can capture the screenshot (in .jpeg) and save it on specified folder

- (IBAction)SaveJPEG_BtnClicked:(id)sender

{

    CGDirectDisplayID displayID = CGMainDisplayID();

    CGImageRef imageRef = CGDisplayCreateImage(displayID); //screenshot

    

    NSString *path = [@"~/Desktop/public.jpeg" stringByExpandingTildeInPath];

    [self saveJPEGImage:imageRef path:path];

    

    CFRelease(imageRef);

}

// Follows code can capture the screenshot (in .tiff) and save it on specified folder

- (IBAction)SaveTIFF_BtnClicked:(id)sender

{

    CGDirectDisplayID displayID = CGMainDisplayID();

    CGImageRef imageRef = CGDisplayCreateImage(displayID); //screenshot 

   

    

    NSString *path = [@"~/Desktop/public.tiff" stringByExpandingTildeInPath];

    [self saveTIFFImage:imageRef path:path];

    

    CFRelease(imageRef);

    

}