Driver

(moved some stuff to the Talk:Driver page

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Found error in DosGetMessage API return codes text Really it is OS/2 API bugreport

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/* Some words on how create message files:
 This example demonstrates how to create a message with inserts from a system message file. It 
 creates a file named "SAMPLE.TXT" with the following 3 lines in it: 
;sample system message file - SAMPLE.MSG ... 
DOS<CR> 
DOS1000E: %1 Error at Station %2%0<CR> 
    Note:<CR> stands for '\n' 
    Note2:if you write <SPACE><CR> then you will see that MKMSGF is really guano
It then generates a message file by issuing the following command  at an OS/2 command prompt: 
MKMSGF SAMPLE.TXT SAMPLE.MSG 
*/

#define INCL_DOSMISC    /* Miscellaneous values */
#define INCL_DOSERRORS  /* DOS Error values */
#include <os2.h>
#include <stdio.h>
#include <string.h>
 
int main(VOID) 
{
 UCHAR   *IvTable[2] = {0};                   /* Table of variables to insert */
 UCHAR   szOutMsg[80]= "";                    /* Message buffer */
 ULONG   ulMsgLen    = 0;                     /* Length of returned message */
 APIRET  rc          = 0;                     /* Return code */
 
 IvTable[0] = "Automation Failure";
 IvTable[1] = "69B";
 
     /* Create error message with inserts from system message file SAMPLE.MSG */
 
 rc = DosGetMessage(IvTable,          /* Message insert pointer array */
                    2,                /* Number of inserts */
                    szOutMsg,         /* Output message */
                    sizeof(szOutMsg), /* Length of output message area */
                    100L,            /* Number of message requested */
                    "SAMPLE.MSG",     /* Message file (created by MKMSGF) */
                    &ulMsgLen);       /* Length of resulting output message */
 if (rc != NO_ERROR) {
    printf("DosGetMessage error: return code = %u\n", rc);
    return 1;
 }
 
 printf("%s\n", szOutMsg);
 
 return NO_ERROR;
}

/*--------------- Output will be as ------------- 
C:>message.exe
DosGetMessage error: return code = 316
/*--------------- Output sould  be as ------------- 
DosGetMessage error: return code = 317
-------------------------------------------------*/

/*  
    DosGetMessage returns one of the following values: 
  .......
    316            ERROR_MR_MSG_TOO_LONG 
    317            ERROR_MR_MID_NOT_FOUND 
*/