gclib  2.0.8
Communications API for Galil controllers and PLCs

◆ GCmdD()

GReturn GCALL GCmdD ( GCon  g,
GCStringIn  command,
double *  value 
)

Wrapper around GCommand that provides the return value of a command parsed into a double.

Use this function to retrieve the full Galil 4.2 range, e.g. for a variable value with fractional data, or the value of an Analog input or Output.

Parameters
gConnection's handle.
commandNull-terminated command string to send to the controller.
valuePointer to a double that will be filled with the return value.
Returns
The success status or error code of the function. See gclib_errors.h for possible values.

See x_gcommand.cpp for an example.

Definition at line 289 of file gclibo.c.