daveReadBytes

Read len bytes from the PLC.

extern (C)

int

daveReadBytes

(

daveConnection* dc

int DB

int len

)

Parameters

dc: Type: daveConnection*
A daveConnection
area: Type: int
Denotes whether the data comes from FLAGS, DATA BLOCKS,
DB: Type: int
The number of the data block to be used. Set it to zero
start: Type: int
First byte.
len: Type: int
Number of bytes to read
buffer: Type: void*
Pointer to a memory block provided by the calling program. If the pointer is not NULL, the result data will be copied thereto. Hence it must be big enough to take up the result.