Synopsis

PDX_MSGT mda_ReadAppData(MDA_APP_DATA *ad_ptr, MDA_PTR db_ptr, void *data)

Purpose

Read application data associated with an entity.

Description

The application data associated with the specified entity is copied to the location pointed to by data. If no application data was written with mda_WriteAppData the resulting data will be undefined. If the MDA_ZERO_DATA option was specified in the call to mda_AllocateAppData, the resulting data will be zeroes. The specified pointer must have been allocated in the same model as the application data was allocated in.

Input

ad_ptr

The handle returned from mda_AllocateAppData

db_ptr

The entity whose application data is to be returned

Output

data

The application data for the specified entity

Return

MDA error code