hi_mpi_rgn_get_canvas_info

Description

Obtains the canvas information of a region.

Restrictions

• 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.

Prototype

hi_s32 hi_mpi_rgn_get_canvas_info(hi_rgn_handle handle, hi_rgn_canvas_info *canvas_info)

Parameters

Returns

• 0: success.
• Other values: failure. For details, see Region Management Return Codes.