hi_mpi_rgn_get_canvas_info

Product	Supported
Atlas A3 training products / Atlas A3 inference products	x
Atlas A2 training products / Atlas A2 inference products	x
Atlas 200I/500 A2 inference products	√
Atlas inference products	x
Atlas training products	x

Obtains the canvas information of a region.

The Ascend EP form of Atlas 200I/500 A2 inference products does not support this API.

hi_s32 hi_mpi_rgn_get_canvas_info(hi_rgn_handle handle, hi_rgn_canvas_info *canvas_info)

Parameter	Input/Output	Description
handle	Input	Region handle ID. Value range: [0, 1024)
canvas_info	Output	Canvas information corresponding to the region.

Parameter

Input/Output

Description

handle

Input

Region handle ID.

Value range: [0, 1024)

canvas_info

Output

Canvas information corresponding to the region.

The regions must be created before you call this API.
This API is used to import bitmap data of the OVERLAYEX type.
This API is used to obtain the canvas information corresponding to a region. After obtaining the canvas address, you can directly operate the canvas. For example, you can fill the canvas with bitmap data. Then, call hi_mpi_rgn_update_canvas to update the display canvas data.