cf_canvas_readback2¶

Initiates a readback of one specific color target of a multi-target canvas.

CF_Readback cf_canvas_readback2(CF_Canvas canvas, int index);

Parameters	Description
`canvas`	The canvas.
`index`	Which color target, from 0 to `target_count - 1`.

Return Value¶

Returns a CF_Readback, or a zero'd handle for an out-of-range index.

cf_canvas_readback is equivalent to index 0. The pixel format matches that target's format.