Function

UIGraphicsGetImageFromCurrentImageContext

Returns an image based on the contents of the current bitmap-based graphics context.

Declaration

UIImage * UIGraphicsGetImageFromCurrentImageContext(void);

Return Value

A image object containing the contents of the current bitmap graphics context.

Discussion

You should call this function only when a bitmap-based graphics context is the current graphics context. If the current context is nil or was not created by a call to UIGraphicsBeginImageContext, this function returns nil.

This function may be called from any thread of your app.

See Also

Image Creation

UIGraphicsBeginImageContext

Creates a bitmap-based graphics context and makes it the current context.

UIGraphicsEndImageContext

Removes the current bitmap-based graphics context from the top of the stack.

UIImageJPEGRepresentation

Returns a data object containing the specified image in JPEG format.

UIImagePNGRepresentation

Returns a data object containing the specified image in PNG format