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TN3270 Server Manual

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CRT Communication Protocol
TN3270 Server Manual—424097-001
5-4
CONTROL 22 Operation
request should be issued as soon as possible after termination of the CONTROL 22
operation.
CONTROL 22 Operation Syntax
The following CONTROL operation is called to invoke a two-step READ request.
filenumber
INT:value
is the number assigned to the subdevice when opened.
22
INT:value
is the CONTROL operation.
size
INT:value
is the size, in bytes, issued for the actual call to the READ request.
tag
INT(32):value
is used for nowait opens.
CALL CONTROL (filenumber, 22, size [, tag ]);