Microsoft KB Archive/27289

= Passing Basic Variable-Length String to C by Near Reference =

Article ID: 27289

Article Last Modified on 11/21/2006



This article was previously published under Q27289



SUMMARY
The following is an example of how to pass a Basic variable-length string variable by near reference to a Microsoft C routine.

This information about inter-language calling applies to QuickBasic Versions 4.00, 4.00b, and 4.50 for MS-DOS and to Microsoft Basic Compiler Versions 6.00 and 6.00b for MS-DOS and MS OS/2.



MORE INFORMATION
For more information about passing other types of parameters between Basic and C, and a list of which Basic and C versions are compatible with each other, query in the Microsoft Knowledge Base using the following word:

BAS2C

Code Example
REM ===== Basic PROGRAM =====

DECLARE SUB StringNear CDECL (_       BYVAL p1o AS INTEGER,_        SEG p3 AS INTEGER) CLS a$ = &quot;This is a test&quot; + CHR$(0) CALL StringNear(SADD(a$), LEN(a$)) END

/* ===== C ROUTINE ===== /*

void StringNear(a,len) char near *a; int *len; {   int i;    printf(&quot;The string is : %s \n\n&quot;,a); printf(&quot; Index      Value       Character\n&quot;); for (i=0;i < *len; i++) {        printf(&quot;  %2d          %3d            %c\n&quot;,i,a[i],a[i]); }; }
 * 1) include 

OUTPUT
The string is : This is a test  Index      Value       Character 0          84            T   1          104            h   2          105            i   3          115            s   4           32 5         105            i   6          115            s   7           32 8          97            a   9           32 10         116            t  11          101            e  12          115            s  13          116            t  14            0

Additional query words: QuickBas BasicCom

Keywords: KB27289

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