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)