On MAWT TextArea, Ctrl+Shift key for IIIMF-zh_CN doesn't work.
Ctrl+Shift means that we hold Ctrl key pressed and then press Shift key. It's assigned for switching input mode of IIIMF-zh_CN.

Test instructions are as follows:

1. Install Redhat Enterprise Linux 4 with Chinese locale support (zh_CN.UTF-8).

2. Login Desktop environment in zh_CN.UTF-8.

3. Compile and run the attached sample code with MToolkit.
$ AWT_TOOLKIT=MToolkit java TextAreaTest

4. Turn on IIIMF-zh_CN by pressing Ctrl+Space key.

5. Press Ctrl + Shift key to switch input mode.
=> Nothing happened. <= Problem.

Expected result:
By pressing Ctrl+Shift key, input mode of IIIMF-zh_CN should switch. You can confirm it by the string of IM status. Swing JTextArea behaves correctly and can be used as a reference.

Additional Information:
When Ctrl+Shift key is pressed, IIIMF receives "Shift key press with Ctrl+Shift modifier" event. It seems IIIMF expects "Shift key press with Ctrl modifier". I don't know why Shift modifier was set
by just pressing Shift key.

======== TextAreaTest.java ====================================
import java.awt.*;
public class TextAreaTest extends TextArea {
        public TextAreaTest() {
                super();
        }
        public static void main(String[] args) {
                Frame frame = new Frame();
                frame.add(new TextAreaTest());
                frame.setSize(300, 100);
                frame.setVisible(true);
        }
}