Embed MFC C++ Window in JPanel?
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From: jtayamai on 3 Sep 2009 08:00 Hi, Does anybody know how to embed an MFC C++ Window into a signed Applet? I mean, referencing the handle hWnd of that window so that via JNI it can be embedded into a JPanel or something similar. An easy example would be a JPanel of an Applet with the Calculator application (calc.exe) inside. Thanks, Iván
From: Alessio Stalla on 3 Sep 2009 09:31 On Sep 3, 2:00 pm, jtayamai <jtaya...(a)googlemail.com> wrote: > Hi, > > Does anybody know how to embed an MFC C++ Window into a signed > Applet? > > I mean, referencing the handle hWnd of that window so that via JNI it > can be embedded into a JPanel or something similar. > > An easy example would be a JPanel of an Applet with the Calculator > application (calc.exe) inside. I seriously doubt that it's possible. AWT[1] does not expose low level access to the screen, everything you can draw must pass through an instance of the java.awt.Graphics class. So I can't see how a non-java application can run inside an AWT component. Maybe you can have better luck using SWT, which I don't know; I know they can embed the native OS browser inside Eclipse, and if this feature is exposed somehow, you can exploit it. However, that would probably require writing some JNI C glue. Also, I don't think SWT can be used in applets (since Applet is a class in java.awt), but I could be wrong. hth, Alessio [1] you mentioned JPanel, which is part of Swing; Swing is a lightweight, "pure Java" GUI library: as such, you cannot generally embed native components inside it without problems (not even AWT ones!). If that's possible at all, definitely you need AWT, not Swing.
From: jtayamai on 3 Sep 2009 11:39 OK Thank you very much for your help. Assuming Applets may constitute a closed way because of their belonging to the awt package and the need of making use of some kind of Graphics rendering, then, what about using any other stand-alone container JPanel, JDialog, JFrame, ... to host a MFC windows?
From: Roedy Green on 4 Sep 2009 01:54 On Thu, 3 Sep 2009 05:00:44 -0700 (PDT), jtayamai <jtayamai(a)googlemail.com> wrote, quoted or indirectly quoted someone who said : >Does anybody know how to embed an MFC C++ Window into a signed >Applet? I think that would be extremely difficult. It would be much easier to send C++ data to Java to display or vice versa. -- Roedy Green Canadian Mind Products http://mindprod.com "People think of security as a noun, something you go buy. In reality, it�s an abstract concept like happiness. Openness is unbelievably helpful to security." ~ James Gosling (born: 1955-05-18 age: 54), inventor of Java.
From: jtayamai on 8 Sep 2009 03:39
I think that the low-level communication approach will be a bit complicated with already developed applications, such as calc or mspaint, but it could be a good starting point for new applications I can develop. Thanks. |