hi_mpi_rgn_get_canvas_info

Product	Supported
Atlas 350 Accelerator Card	☓
Atlas A3 training product / Atlas A3 inference product	☓
Atlas A2 training product / Atlas A2 inference product	☓
Atlas 200I/500 A2 inference product	√
Atlas inference product	☓
Atlas training product	☓

Obtains the canvas information of a region.

This API is not supported in the Ascend EP form of Atlas 200I/500 A2 inference product .

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 displayed in the region.

Parameter

Input/Output

Description

handle

Input

Region handle ID.

Value range: [0, 1024)

canvas_info

Output

Canvas information displayed in the region.

The regions must be created before you call this API.
It 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 perform operations on the canvas. For example, you can directly fill the BMP data in the canvas. Call the hi_mpi_rgn_update_canvas API to update the display canvas data.