NAME

       Trf_CreateCtrlBlock  -  Interface  to  procedure  for  creation of encoder/decoder control
       structures.

SYNOPSIS

       #include <transform.h>

       Trf_ControlBlock Trf_CreateCtrlBlock
       (
            ClientData writeClientData,
            Trf_WriteProc *fun,
            Trf_Options optInfo,
            Tcl_Interp *interp,
            ClientData clientData
       );

PARAMETERS

       ClientData writeClientData
              Arbitrary information given as clientdata to 'fun'.

       Trf_WriteProc *fun
              Vector to use for writing generated results.

       Trf_Options optInfo
              Options to configure the control.

       Tcl_Interp *interp
              Interpreter for error messages.

       ClientData clientData
              Arbitrary information, as defined in Trf_TypeDefinition.clientData.

DESCRIPTION

       The procedure has to create a control structure for an encoder/decoder. The structure must
       be  initialized  with  the contents of the the option container. Return value is an opaque
       handle aof the control structure or NULL in case of failure. An error  message  should  be
       left in the result area of the specified interpreter then.

SEE ALSO

       Trf_Init(3),       Trf_SafeInit(3),       Trf_IsInitialized(3),      Trf_CreateOptions(3),
       Trf_DeleteOptions(3),    Trf_CheckOptions(3),    Trf_SetOption(3),    Trf_SetObjOption(3),
       Trf_QueryOptions(3),  Trf_SeekQueryOptions(3),  Trf_WriteProc(3),  Trf_DeleteCtrlBlock(3),
       Trf_TransformCharacter(3),       Trf_TransformBuffer(3),       Trf_FlushTransformation(3),
       Trf_ClearCtrlBlock(3),   Trf_QueryMaxRead(3),   Trf_Register(3),  Trf_ConverterOptions(3),
       Trf_MDStart(3),  Trf_MDUpdate(3),  Trf_MDUpdateBuf(3),   Trf_MDFinal(3),   Trf_MDCheck(3),
       Trf_RegisterMessageDigest(3),  Trf_LoadLibrary(3), Trf_XorBuffer(3), Trf_ShiftRegister(3),
       Trf_FlipRegisterShort(3), Trf_FlipRegisterLong(3), Trf_InitStubs(3)