Added com port stuff

CHANGES.md

@@ -7,6 +7,7 @@ Next Release (4.2.1)
 
 Features
 --------
+* [#510](https://github.com/java-native-access/jna/pull/510): Added `GetCommState`, `GetCommTimeouts` `SetCommState` and `SetCommTimeouts` to `com.sun.jna.platform.win32.Kernel32`. Added `DCB` structure to `com.sun.jna.platform.win32.WinBase` - [@MBollig](https://github.com/MBollig)
 
 Bug Fixes
 ---------

contrib/platform/src/com/sun/jna/platform/win32/Kernel32.java

@@ -14,6 +14,7 @@
 
 import com.sun.jna.Native;
 import com.sun.jna.Pointer;
+import com.sun.jna.platform.win32.WinNT.HANDLE;
 import com.sun.jna.ptr.IntByReference;
 import com.sun.jna.ptr.PointerByReference;
 import com.sun.jna.win32.W32APIOptions;
@@ -2729,4 +2730,87 @@ boolean GetVolumePathNamesForVolumeName(String lpszVolumeName,
      * @see <a href="https://msdn.microsoft.com/en-us/library/windows/desktop/aa364433(v=vs.85).aspx">FindVolumeClose</a>
      */
     boolean FindVolumeClose(HANDLE hFindVolume);
+
+    /**
+	 * Retrieves the current control settings for a specified communications
+	 * device.
+	 * 
+	 * @param hFile
+	 *            [in] A handle to the communications device.<br>
+	 *            The
+	 *            {@link com.sun.jna.platform.win32.Kernel32#CreateFile(String, int, int, com.sun.jna.platform.win32.WinBase.SECURITY_ATTRIBUTES, int, int, com.sun.jna.platform.win32.WinNT.HANDLE)}
+	 *            function returns this {@link HANDLE}.
+	 * @param lpDCB
+	 *            [in, out] A pointer to a {@link WinBase.DCB} structure that
+	 *            receives the control settings information.
+	 * 
+	 * @return If the function succeeds, the return value is nonzero. <br>
+	 *         If the function fails, the return value is zero. To get extended
+	 *         error information, call {@link Kernel32#GetLastError()}.
+	 * 
+	 */
+	boolean GetCommState(HANDLE hFile, WinBase.DCB lpDCB);
+
+	/**
+	 * 
+	 * Retrieves the time-out parameters for all read and write operations on a
+	 * specified communications device.<br>
+	 * <br>
+	 * For more information about time-out values for communications devices,
+	 * see the {@link Kernel32#SetCommTimeouts} function.
+	 * 
+	 * @param hFile
+	 *            [in] A handle to the communications device. The
+	 *            {@link com.sun.jna.platform.win32.Kernel32#CreateFile(String, int, int, com.sun.jna.platform.win32.WinBase.SECURITY_ATTRIBUTES, int, int, com.sun.jna.platform.win32.WinNT.HANDLE)}
+	 *            function returns this handle.
+	 * 
+	 * @param lpCommTimeouts
+	 *            [in] A pointer to a {@link WinBase.COMMTIMEOUTS} structure in
+	 *            which the time-out information is returned.
+	 * @return If the function succeeds, the return value is nonzero.
+	 * 
+	 *         If the function fails, the return value is zero. To get extended
+	 *         error information, call {@link Kernel32#GetLastError()}.
+	 * 
+	 * 
+	 * 
+	 */
+	boolean GetCommTimeouts(HANDLE hFile, WinBase.COMMTIMEOUTS lpCommTimeouts);
+
+	/**
+	 * Configures a communications device according to the specifications in a
+	 * device-control block (a {@link WinBase.DCB} structure). The function
+	 * reinitializes all hardware and control settings, but it does not empty
+	 * output or input queues.
+	 * 
+	 * @param hFile
+	 *            [in] A handle to the communications device. The
+	 *            {@link com.sun.jna.platform.win32.Kernel32#CreateFile(String, int, int, com.sun.jna.platform.win32.WinBase.SECURITY_ATTRIBUTES, int, int, com.sun.jna.platform.win32.WinNT.HANDLE)}
+	 *            function returns this handle.
+	 * @param lpDCB
+	 *            [in] A pointer to a {@link WinBase.DCB} structure that
+	 *            contains the configuration information for the specified
+	 *            communications device.
+	 * @return If the function succeeds, the return value is nonzero. If the
+	 *         function fails, the return value is zero. To get extended error
+	 *         information, call {@link Kernel32#GetLastError()}.
+	 */
+	boolean SetCommState(HANDLE hFile, WinBase.DCB lpDCB);
+
+	/**
+	 * Sets the time-out parameters for all read and write operations on a
+	 * specified communications device.
+	 * 
+	 * @param hFile
+	 *            [in] A handle to the communications device. The
+	 *            {@link com.sun.jna.platform.win32.Kernel32#CreateFile(String, int, int, com.sun.jna.platform.win32.WinBase.SECURITY_ATTRIBUTES, int, int, com.sun.jna.platform.win32.WinNT.HANDLE)}
+	 *            function returns this handle.
+	 * @param LPCOMMTIMEOUTS
+	 *            [in] A pointer to a {@link WinBase.COMMTIMEOUTS} structure
+	 *            that contains the new time-out values.
+	 * @return If the function succeeds, the return value is nonzero. <br>
+	 *         If the function fails, the return value is zero. To get extended
+	 *         error information, call {@link Kernel32#GetLastError()}.
+	 */
+	boolean SetCommTimeouts(HANDLE hFile, WinBase.COMMTIMEOUTS lpCommTimeouts);
 }