diff options
Diffstat (limited to 'winsup/mingw/samples/filehand')
| -rw-r--r-- | winsup/mingw/samples/filehand/filehand.c | 57 | ||||
| -rw-r--r-- | winsup/mingw/samples/filehand/jamfile | 3 | ||||
| -rw-r--r-- | winsup/mingw/samples/filehand/junk.txt | 1 |
3 files changed, 61 insertions, 0 deletions
diff --git a/winsup/mingw/samples/filehand/filehand.c b/winsup/mingw/samples/filehand/filehand.c new file mode 100644 index 0000000..24e048c --- /dev/null +++ b/winsup/mingw/samples/filehand/filehand.c @@ -0,0 +1,57 @@ +/*
+ * An example showing how you can obtain the UNIX-ish file number from a
+ * FILE* and in turn how you can get the Win32 HANDLE of the file from
+ * the file number.
+ *
+ * This code is in the PUBLIC DOMAIN and has NO WARRANTY.
+ *
+ * Colin Peters <colin@fu.is.saga-u.ac.jp>
+ */
+
+#include <stdio.h>
+#include <io.h>
+#include <windows.h>
+
+int
+main (int argc, char* argv[])
+{
+ char* szFileName;
+ FILE* fileIn;
+ int fnIn;
+ HANDLE hFileIn;
+ char caBuf[81];
+ int nRead;
+
+ if (argc >= 2)
+ {
+ szFileName = argv[1];
+ }
+ else
+ {
+ szFileName = "junk.txt";
+ }
+
+ fileIn = fopen (szFileName, "r");
+
+ if (!fileIn)
+ {
+ printf ("Could not open %s for reading\n", szFileName);
+ exit(1);
+ }
+
+ fnIn = fileno (fileIn);
+ hFileIn = (HANDLE) _get_osfhandle (fnIn);
+
+ printf ("OS file handle %d\n", (int) hFileIn);
+
+ ReadFile (hFileIn, caBuf, 80, &nRead, NULL);
+
+ printf ("Read %d bytes using ReadFile.\n", nRead);
+
+ caBuf[nRead] = '\0';
+
+ printf ("\"%s\"\n", caBuf);
+
+ fclose (fileIn);
+}
+
diff --git a/winsup/mingw/samples/filehand/jamfile b/winsup/mingw/samples/filehand/jamfile new file mode 100644 index 0000000..6f29c37 --- /dev/null +++ b/winsup/mingw/samples/filehand/jamfile @@ -0,0 +1,3 @@ +
+Main filehand.exe : filehand.c ;
+
diff --git a/winsup/mingw/samples/filehand/junk.txt b/winsup/mingw/samples/filehand/junk.txt new file mode 100644 index 0000000..f933c54 --- /dev/null +++ b/winsup/mingw/samples/filehand/junk.txt @@ -0,0 +1 @@ +This is a test file.
|