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ddlPrintCallback() - post print callback

Version 7.11

ddlPrintCallback() - post print callback

Prototype:

   void ddlPrintCallback(
      CONTROL *ctl,
      WtCastPtr UserWord,
      PrintRtn UserPrint);
 
      typedef void (STDCALL *PrintRtn)(
         WtCastPtr UserWord,      /* [IN] UserWord from ddlPrineCallback() */
         char *PrintMessage);     /* [IN] Print message */

Description:
Posts a callback to perform print operation for functions that perform print output.

The ddlPrintCallback() function with a null UserPrint parameter cancels any print callback.

Values returned in Control Structure:

Control.Ans1	NA
Control.Ans2	Previous Print Callback pointer (cast as 32 bit int)
Control.Ans3	Previous Print Callback UserWord (cast as 32 bit int)
Control.Ans2L	Previous Print Callback pointer (cast as 64 bit int)
Control.Ans3L	Previous Print Callback UserWord (cast as 64 bit int)

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