RAD Studio VCL Reference
TParameter.Direction Property

Indicates the type of parameter.

property Direction: TParameterDirection;
__property TParameterDirection Direction;

Set Direction to indicate the type of parameter the TParameter object represents. A parameter can be one of the types: input, output, input-output, or return value. Assign a type of pdUnknown when the actual type of the parameter is not known at the time. The default value of Direction is pdInput. 


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