Trf_WriteProc(3) Interface to procedures used by an encoder/decoder to write its transformation results.


#include <transform.h>

int Trf_WriteProc
       ClientData clientData,

       unsigned char *outString,

       int outLen,

       Tcl_Interp *interp



ClientData clientData
Arbitrary information, defined during controlblock creation.
unsigned char *outString
Buffer with characters to write.
int outLen
Number of characters in buffer.
Tcl_Interp *interp
Interpreter for error messages (NULL possible).


Procedures of this type are called by an encoder/decoder to write (partial) transformation results, decoupling the final destination from result generation. Return value is a standard tcl error code. In case of failure and interp not NULL an error message should be left in the result area of the specified interpreter.