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Annotation of os2sdk/demos/examples/iopl/ioplmain.c, revision 1.1.1.2

1.1       root        1: /* This example illustrates the use of an IOPL segment. This program
                      2:  * gets the cursor location by calling a routine running at I/O
                      3:  * privilege level and prints it on the screen.
                      4:  *
                      5:  * This needs to run on a CGA compatible display.
                      6:  *
1.1.1.2 ! root        7:  * Created by Microsoft Corp. 1986
1.1       root        8:  */
                      9: 
                     10: #define        COLUMNS 80                      /* number of columns on CRT screen   */
                     11: 
                     12: unsigned far GetCurLoc();              /* gets cursor position on CRT screen*/
                     13: 
                     14: main()
                     15: {
                     16:        unsigned Cursor;                        /* will hold cursor position */
                     17: 
                     18:        Cursor = GetCurLoc();
                     19:        printf ( "cursor location: row = %u, column = %u\n", 
                     20:                  (Cursor/COLUMNS)+1, (Cursor % COLUMNS)+1);
                     21: }

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