--- os2sdk/demos/examples/beepc/beepc.c	2018/08/09 12:25:13	1.1
+++ os2sdk/demos/examples/beepc/beepc.c	2018/08/09 12:26:18	1.1.1.2
@@ -1,23 +1,26 @@
 /*
- * Example of DOSBEEP usage
+ * Example of DosBeep usage
  *
  * This call generates a tone from the speaker with the specified
  * frequency and duration. This program works in Family API mode.
  *
  * Compile as: cl -AL -Lp -G0 beepc.c
  *
- * Copyright (C) Microsoft Corp. 1986
+ * Created by Microsoft Corp. 1986
  */
 
-#include  <doscalls.h>
+#define INCL_DOSPROCESS
+
+#include  <os2def.h>
+#include  <bsedos.h>
 
 main()
 {
-	unsigned int Frequency;		/* in Hertz  (range 0x25 to 0x7fff) */
-	unsigned int Duration;		/* in milliseconds                  */
+	UINT Frequency; 	/* in Hertz  (range 0x25 to 0x7fff) */
+	UINT Duration;		/* in milliseconds		    */
 
 	Frequency = 1000;
 	Duration  =  500;		/* 1/2 second */
 
-	DOSBEEP(Frequency, Duration);	/* Produce tone */
+	DosBeep(Frequency, Duration);	/* Produce tone */
 }