Name

omni_lookup_value − A server procedure can obtain the value referred to by a Write Indication, without sending an acknowledgement to the client. It is used as an alternative to omni_get_value after a Write Indication in order to allow the user to check the received value and decide whether to accept (omni_get_value) or reject (omni-reject) the indication. 

Syntax

extern unsigned int omni_lookup_value (
       omni_l_handle            handle,
       void                     ∗receiving_struct,
       unsigned long int        receiving_struct_length,
       omni_l_handle            modifier_object,
       omni_r_iosb              ∗iosb,
       omni_r_ctrl              ∗ctrl);

Arguments

handle
access: read only
mechanism: by value
Specifies the context value returned by the omni_get_indications procedure call that delivered the Write Indication or Information Report. 

receiving_struct
access: write only
mechanism: by reference
Specifies the data structure to receive the value of the object.

receiving_struct_length
access: write only
mechanism: by reference
Specifies the size of the data structure to receive the value of the object.

modifier_object
access: read only
mechanism: by value
Reserved for future use.

iosb
access: write only
mechanism: by reference
optional argument
The DEComni API I/O status block.

The iosb parameter is the address of the status block. 

ctrl
access: read only
mechanism: by reference
optional argument
A control structure to specify an Event flag and, under OpenVMS, an AST routine and AST parameter.

The ctrl parameter is the address of the control structure.