read_action_data

Copy current action data to the specified location.

uint32_t read_action_data( void* msg, uint32_t len );

Copy up to len bytes of current action data to the specified location

Parameters

• msg - a pointer where up to len bytes of the current action data will be copied
• len - len of the current action data to be copied, 0 to report required size

Returns

the number of bytes copied to msg, or number of bytes that can be copied if len==0 passed

Precondition

msg is a valid pointer to a range of memory at least len bytes long

Post Condition

msg is filled with packed action data