Instructs the receiver to render into an offscreen buffer with the specified attributes.
- macOS 10.0–10.7Deprecated
The base address of the buffer in memory. This buffer must contain at least
The width of the memory buffer, measured in pixels.
The height of the memory buffer, measured in pixels.
The number of bytes in a single row of the buffer. This value must be greater than or equal to the value in
widthtimes the number of bytes per pixel.
The receiver’s viewport is set to the full size of the offscreen area. Call the
clear method to exit offscreen mode.
NSOpen attribute must have been specified in the receiver’s pixel format object.