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ianb821/Screenshot

Created November 25, 2014 02:00
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Grabbing Screenshot on Lock
Raw
Screenshot
To get the background I use _UICreateScreenUIImage();
Here's the declaration:
OBJC_EXTERN UIImage *_UICreateScreenUIImage(void) NS_RETURNS_RETAINED;
Specifically I hook SBBackLightController. Here is the bare bones of what I use:
%hook SBBacklightController
- (void)animateBacklightToFactor:(CGFloat)factor duration:(double)duration source:(int)source completion:(void (^)(void))completion {
if (factor < 0.1) {
UIImage *currentBackground = _UICreateScreenUIImage();
// Do whatever with currentBackground
}
%orig;
}
%end
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