Instance Method


Marks a window context for update.


func synchronize()



The window context to synchronize. If you pass a PDF context or a bitmap context, this function does nothing.


When you call this function, all drawing operations since the last update are flushed at the next regular opportunity. Under normal conditions, you do not need to call this function.

See Also

Managing a Graphics Context

func flush()

Forces all pending drawing operations in a window context to be rendered immediately to the destination device.

func setBlendMode(CGBlendMode)

Sets how sample values are composited by a graphics context.

enum CGBlendMode

Compositing operations for images.

func setRenderingIntent(CGColorRenderingIntent)

Sets the rendering intent in the current graphics state.