1 files changed, 68 insertions, 0 deletions
diff --git a/reference/C/CONTRIB/SNIP/prtstat.c b/reference/C/CONTRIB/SNIP/prtstat.c
new file mode 100755
index 0000000..e541939
--- /dev/null
+++ b/reference/C/CONTRIB/SNIP/prtstat.c
@@ -0,0 +1,68 @@
+/*
+**  PRTSTAT.H - Header file for PRTSTAT.C
+*/
+
+#ifndef PRTSTAT_H
+ #define PRTSTAT_H
+
+struct PrStatus {
+      unsigned int timeout  : 1;
+      unsigned int unused   : 2;
+      unsigned int IOerror  : 1;
+      unsigned int selected : 1;
+      unsigned int paperout : 1;
+      unsigned int ack      : 1;
+      unsigned int notbusy  : 1;
+};
+
+int prtstat(unsigned int);
+
+#endif
+
+/*** End of PRTSTAT.H *******************************************************/
+
+/*
+**  PRTSTAT.C - Determine printer status
+**
+**  public domain by Bob Stout
+*/
+
+#include <dos.h>
+
+#ifndef PRTSTAT_H
+ #include "prtstat.h"
+#endif
+
+/*
+**  prtstat() - Call with printer number (0 = LPT1, 1 = LPT2, 2 = LPT3)
+**
+**  Returns status which can be mapped to a PrStatus struct
+*/
+
+int prtstat(unsigned int printer_no)
+{
+      union REGS regs;
+
+      regs.h.ah = 2;
+      regs.x.dx = printer_no;
+      int86(0x17, &regs, &regs);
+      return regs.h.ah;
+}
+
+#ifdef TEST
+
+#include <stdio.h>
+
+#define show(x) printf(#x" is %strue (LPT1)\n", mystat.x ? "" : "not ");
+
+void main(void)
+{
+      struct PrStatus mystat;
+
+      *((int *)&mystat) = prtstat(0);
+      show(notbusy);
+      show(selected);
+      show(paperout);
+}
+
+#endif