Initial Commit

2018-02-08 21:28:33 -05:00
commit 678c1d3966
14352 changed files with 3176737 additions and 0 deletions
@@ -0,0 +1,50 @@
+#include <windows.h>
+#include <stdio.h>
+
+int ptt_(int *nport, int *ntx, int *iptt)
+{
+  static HANDLE hFile;
+  static int open=0;
+  char s[10];
+  int i3=1,i4=1,i5=1,i6=1,i9=1,i00=1;
+
+  if(*nport==0) {
+    *iptt=*ntx;
+    return(0);
+  }
+
+  if(*ntx && (!open)) {
+    sprintf(s,"\\\\.\\COM%d",*nport);
+    hFile=CreateFile(TEXT(s),GENERIC_WRITE,0,NULL,OPEN_EXISTING,
+		     FILE_ATTRIBUTE_NORMAL,NULL);
+    if(hFile==INVALID_HANDLE_VALUE) {
+      //      printf("PTT: Cannot open COM port %d.\n",*nport);
+      return 1;
+    }
+    open=1;
+  }
+
+  if(*ntx && open) {
+    i3=EscapeCommFunction(hFile,3);
+    i5=EscapeCommFunction(hFile,5);
+    *iptt=1;
+  }
+
+  else {
+    i4=EscapeCommFunction(hFile,4);
+    i6=EscapeCommFunction(hFile,6);
+    i9=EscapeCommFunction(hFile,9);
+    i00=CloseHandle(hFile);
+    *iptt=0;
+    open=0;
+  }
+  /*
+  if(i3==0) return 3;
+  if(i4==0) return 4;
+  if(i5==0) return 5;
+  if(i6==0) return 6;
+  if(i9==0) return 9;
+  if(i00==0) return 10;
+  */
+  return 0;
+}