Examples of com.sun.jna.examples.win32.User32

com.sun.jna.examples.win32.Kernel32
Provides access to the w32 user32 library. Incomplete implementation to support demos. @author Todd Fast, todd.fast@sun.com @author twall@users.sf.net

        }


        public void setWindowMask(final Window w, final Raster raster) {
            whenDisplayable(w, new Runnable() {
                public void run() {
                    GDI32 gdi = GDI32.INSTANCE;
                    User32 user = User32.INSTANCE;
                    HWND hWnd = getHWnd(w);
                    final HRGN result = gdi.CreateRectRgn(0, 0, 0, 0);
                    try {
                        if (raster == null) {
                            gdi.SetRectRgn(result, 0, 0, w.getWidth(), w.getHeight());
                        }
                        else {
                            final HRGN tempRgn = gdi.CreateRectRgn(0, 0, 0, 0);
                            try {
                                RasterRangesUtils.outputOccupiedRanges(raster, new RasterRangesUtils.RangesOutput() {
                                    public boolean outputRange(int x, int y, int w, int h) {
                                        GDI32 gdi = GDI32.INSTANCE;
                                        gdi.SetRectRgn(tempRgn, x, y, x + w, y + h);
                                        return gdi.CombineRgn(result, result, tempRgn, GDI32.RGN_OR) != GDI32.ERROR;
                                    }
                                });
                            }
                            finally {
                                gdi.DeleteObject(tempRgn);
                            }
                        }
                        user.SetWindowRgn(hWnd, result, true);
                    }
                    finally {
                        gdi.DeleteObject(result);
                    }
                    setForceHeavyweightPopups(w, raster != null);
                }
            });
        }

View Full Code Here

                if (w > 0 && h > 0)
                    SwingUtilities.getWindowAncestor(this).toFront();
            }


            public void update() {
                GDI32 gdi = GDI32.INSTANCE;
                User32 user = User32.INSTANCE;
                Window win = SwingUtilities.getWindowAncestor(this);
                int w = win.getWidth();
                int h = win.getHeight();
                HDC screenDC = user.GetDC(null);
                HDC memDC = gdi.CreateCompatibleDC(screenDC);
                HBITMAP hBitmap = null;
                HANDLE oldBitmap = null;
                try {
                    BufferedImage buf = 
                        new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB_PRE);
                    Graphics2D g = buf.createGraphics();
                    g.setComposite(AlphaComposite.Clear);
                    g.fillRect(0, 0, w, h);
                    g.setComposite(AlphaComposite.SrcOver);
                    Point origin = SwingUtilities.convertPoint(getParent(), 0, 0, win);
                    getParent().paint(g.create(origin.x, origin.y,
                                               getWidth(), getHeight()));
                    BITMAPINFO bmi = new BITMAPINFO();
                    bmi.bmiHeader.biWidth = w;
                    bmi.bmiHeader.biHeight = h;
                    bmi.bmiHeader.biPlanes = 1;
                    bmi.bmiHeader.biBitCount = 32;
                    bmi.bmiHeader.biCompression = GDI32.BI_RGB;
                    bmi.bmiHeader.biSizeImage = w * h * 4;
                    PointerByReference ppbits = new PointerByReference();
                    hBitmap = gdi.CreateDIBSection(memDC, bmi,
                                                   GDI32.DIB_RGB_COLORS,
                                                   ppbits, null, 0);
                    oldBitmap = gdi.SelectObject(memDC, hBitmap);
                    Pointer pbits = ppbits.getValue();
                    Raster raster = buf.getData();
                    int[] pixel = new int[4];
                    int[] bits = new int[w * h];
                    for (int row = 0; row < h; row++) {
                        for (int col = 0; col < w; col++) {
                            raster.getPixel(col, h - row - 1, pixel);
                            int alpha = (pixel[3] & 0xFF) << 24;
                            int red = (pixel[2] & 0xFF);
                            int green = (pixel[1] & 0xFF) << 8;
                            int blue = (pixel[0] & 0xFF) << 16;
                            bits[col + row * w] = alpha | red | green | blue;
                        }
                    }
                    pbits.write(0, bits, 0, bits.length);
                    SIZE size = new SIZE();
                    size.cx = w;
                    size.cy = h;
                    POINT srcLoc = new POINT();
                    BLENDFUNCTION blend = new BLENDFUNCTION();
                    POINT loc = new POINT();
                    loc.x = win.getX();
                    loc.y = win.getY();
                    HWND hWnd = getHWnd(win);
                    // extract current constant alpha setting, if possible
                    ByteByReference bref = new ByteByReference();
                    IntByReference iref = new IntByReference();
                    byte level = getAlpha(win);
                    if (user.GetLayeredWindowAttributes(hWnd, null, bref, iref)
                        && (iref.getValue() & User32.LWA_ALPHA) != 0) {
                        level = bref.getValue();
                    }
                    blend.SourceConstantAlpha = level;
                    blend.AlphaFormat = User32.AC_SRC_ALPHA;
                    user.UpdateLayeredWindow(hWnd, screenDC, loc, size, memDC,
                                             srcLoc, 0, blend, User32.ULW_ALPHA);
                }
                finally {
                    user.ReleaseDC(null, screenDC);
                    if (hBitmap != null) {
                        gdi.SelectObject(memDC, oldBitmap);
                        gdi.DeleteObject(hBitmap);
                    }
                    gdi.DeleteDC(memDC);
                }
            }

View Full Code Here

        return hwnd;
    }
    
    private void updateW32(boolean a, boolean i) {
        User32 user = User32.INSTANCE;
        GDI32 gdi = GDI32.INSTANCE;
        HWND hWnd = null;


        if (!alphaWindow.isDisplayable()) {
            alphaWindow.pack();
            hWnd = getHwnd(alphaWindow);
            int flags = user.GetWindowLong(hWnd, User32.GWL_EXSTYLE);
            flags |= User32.WS_EX_LAYERED;
            user.SetWindowLong(hWnd, User32.GWL_EXSTYLE, flags);
            Window parent = alphaWindow.getOwner();
            Point where = parent.getLocationOnScreen();
            where.translate(parent.getWidth(), 0);
            alphaWindow.setLocation(where);
        }
        else {
            hWnd = getHwnd(alphaWindow);
        }
    
        if (i) {
            int w = image.getWidth(null);
            int h = image.getHeight(null);
            HDC screenDC = user.GetDC(null);
            HDC memDC = gdi.CreateCompatibleDC(screenDC);
            HBITMAP hBitmap = null;
            HANDLE oldBitmap = null;
            
            try {
                BufferedImage buf = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB_PRE);
                Graphics g = buf.getGraphics();
                g.drawImage(image, 0, 0, w, h, null);
                
                BITMAPINFO bmi = new BITMAPINFO();
                bmi.bmiHeader.biWidth = w;
                bmi.bmiHeader.biHeight = h;
                bmi.bmiHeader.biPlanes = 1;
                bmi.bmiHeader.biBitCount = 32;
                bmi.bmiHeader.biCompression = GDI32.BI_RGB;
                bmi.bmiHeader.biSizeImage = w * h * 4;
                
                PointerByReference ppbits = new PointerByReference();
                hBitmap = gdi.CreateDIBSection(memDC, bmi, GDI32.DIB_RGB_COLORS,
                                               ppbits, null, 0);
                oldBitmap = gdi.SelectObject(memDC, hBitmap);
                Pointer pbits = ppbits.getValue();
                
                Raster raster = buf.getData();
                int[] pixel = new int[4];
                int[] bits = new int[w*h];
                for (int y=0;y < h;y++) {
                    for (int x=0;x < w;x++) {
                        raster.getPixel(x, h-y-1, pixel);
                        int alpha = (pixel[3]&0xFF)<<24;
                        int red = (pixel[2]&0xFF);
                        int green = (pixel[1]&0xFF)<<8;
                        int blue = (pixel[0]&0xFF)<<16; 
                        bits[x + y * w] = alpha|red|green|blue;
                    }
                }
                pbits.write(0, bits, 0, bits.length);
                
                SIZE size = new SIZE();
                size.cx = w;
                size.cy = h;
                POINT loc = new POINT();
                loc.x = alphaWindow.getX();
                loc.y = alphaWindow.getY();
                POINT srcLoc = new POINT();
                BLENDFUNCTION blend = new BLENDFUNCTION();
                blend.SourceConstantAlpha = (byte)(alpha * 255);
                blend.AlphaFormat = User32.AC_SRC_ALPHA;
                user.UpdateLayeredWindow(hWnd, screenDC, loc, size, memDC, srcLoc, 
                                         0, blend, User32.ULW_ALPHA);
            }
            finally {
                user.ReleaseDC(null, screenDC);
                if (hBitmap != null) {
                    gdi.SelectObject(memDC, oldBitmap);
                    gdi.DeleteObject(hBitmap);
                }
                gdi.DeleteDC(memDC);
            }
        }
        else if (a) {
            BLENDFUNCTION blend = new BLENDFUNCTION();
            blend.SourceConstantAlpha = (byte)(alpha * 255);

View Full Code Here


        // NOTE: Deletes hrgn after setting the window region
        private void setWindowRegion(final Component w, final HRGN hrgn) {
            whenDisplayable(w, new Runnable() {
                public void run() {
                    GDI32 gdi = GDI32.INSTANCE;
                    User32 user = User32.INSTANCE;
                    HWND hWnd = getHWnd(w);
                    try {
                        user.SetWindowRgn(hWnd, hrgn, true);
                        setForceHeavyweightPopups(getWindow(w), hrgn != null);
                    }
                    finally {
                        gdi.DeleteObject(hrgn);
                    }
                }
            });
        }

View Full Code Here

            });
        }


        // Take advantage of CreatePolyPolygonalRgn on w32
        private void setMask(final Component w, final Area area) {
            GDI32 gdi = GDI32.INSTANCE;
            PathIterator pi = area.getPathIterator(null);
            int mode = pi.getWindingRule() == PathIterator.WIND_NON_ZERO
                ? GDI32.WINDING: GDI32.ALTERNATE;
            float[] coords = new float[6];
            List points = new ArrayList();
            int size = 0;
            List sizes = new ArrayList();
            while (!pi.isDone()) {
                int type = pi.currentSegment(coords);
                if (type == PathIterator.SEG_MOVETO) {
                    size = 1;
                    points.add(new POINT((int)coords[0], (int)coords[1]));
                }
                else if (type == PathIterator.SEG_LINETO) {
                    ++size;
                    points.add(new POINT((int)coords[0], (int)coords[1]));
                }
                else if (type == PathIterator.SEG_CLOSE) {
                    sizes.add(new Integer(size));
                }
                else {
                    throw new RuntimeException("Area is not polygonal: " + area);
                }
                pi.next();
            }
            POINT[] lppt = (POINT[])new POINT().toArray(points.size());
            POINT[] pts = (POINT[])points.toArray(new POINT[points.size()]);
            for (int i=0;i < lppt.length;i++) {
                lppt[i].x = pts[i].x;
                lppt[i].y = pts[i].y;
            }
            int[] counts = new int[sizes.size()];
            for (int i=0;i < counts.length;i++) {
                counts[i] = ((Integer)sizes.get(i)).intValue();
            }
            HRGN hrgn = gdi.CreatePolyPolygonRgn(lppt, counts, counts.length, mode);
            setWindowRegion(w, hrgn);
        }

View Full Code Here

            HRGN hrgn = gdi.CreatePolyPolygonRgn(lppt, counts, counts.length, mode);
            setWindowRegion(w, hrgn);
        }


        protected void setMask(final Component w, final Raster raster) {
            GDI32 gdi = GDI32.INSTANCE;
            final HRGN region = raster != null
                ? gdi.CreateRectRgn(0, 0, 0, 0) : null;
            if (region != null) {
                final HRGN tempRgn = gdi.CreateRectRgn(0, 0, 0, 0);
                try {
                    RasterRangesUtils.outputOccupiedRanges(raster, new RasterRangesUtils.RangesOutput() {
                        public boolean outputRange(int x, int y, int w, int h) {
                            GDI32 gdi = GDI32.INSTANCE;
                            gdi.SetRectRgn(tempRgn, x, y, x + w, y + h);
                            return gdi.CombineRgn(region, region, tempRgn, GDI32.RGN_OR) != GDI32.ERROR;
                        }
                    });
                }
                finally {
                    gdi.DeleteObject(tempRgn);
                }
            }
            setWindowRegion(w, region);
        }

View Full Code Here

            private Dimension bitmapSize;
            public W32TransparentContentPane(Container content) {
                super(content);
            }
            private void disposeBackingStore() {
                GDI32 gdi = GDI32.INSTANCE;
                if (hBitmap != null) {
                    gdi.DeleteObject(hBitmap);
                    hBitmap = null;
                }
                if (memDC != null) {
                    gdi.DeleteDC(memDC);
                    memDC = null;
                }
            }

View Full Code Here

                }
            }
            protected void paintDirect(BufferedImage buf, Rectangle bounds) {
                // TODO: paint frame decoration if window is decorated
                Window win = SwingUtilities.getWindowAncestor(this);
                GDI32 gdi = GDI32.INSTANCE;
                User32 user = User32.INSTANCE;
                int x = bounds.x;
                int y = bounds.y;
                Point origin = SwingUtilities.convertPoint(this, x, y, win);
                int w = bounds.width;
                int h = bounds.height;
                int ww = win.getWidth();
                int wh = win.getHeight();
                HDC screenDC = user.GetDC(null);
                HANDLE oldBitmap = null;
                try {
                    if (memDC == null) {
                        memDC = gdi.CreateCompatibleDC(screenDC);
                    }
                    if (hBitmap == null || !win.getSize().equals(bitmapSize)) {
                        if (hBitmap != null) {
                            gdi.DeleteObject(hBitmap);
                            hBitmap = null;
                        }
                        BITMAPINFO bmi = new BITMAPINFO();
                        bmi.bmiHeader.biWidth = ww;
                        bmi.bmiHeader.biHeight = wh;
                        bmi.bmiHeader.biPlanes = 1;
                        bmi.bmiHeader.biBitCount = 32;
                        bmi.bmiHeader.biCompression = GDI32.BI_RGB;
                        bmi.bmiHeader.biSizeImage = ww * wh * 4;
                        PointerByReference ppbits = new PointerByReference();
                        hBitmap = gdi.CreateDIBSection(memDC, bmi,
                                                       GDI32.DIB_RGB_COLORS,
                                                       ppbits, null, 0);
                        pbits = ppbits.getValue();
                        bitmapSize = new Dimension(ww, wh);
                    }
                    oldBitmap = gdi.SelectObject(memDC, hBitmap);
                    Raster raster = buf.getData();
                    int[] pixel = new int[4];
                    int[] bits = new int[w];
                    for (int row = 0; row < h; row++) {
                        for (int col = 0; col < w; col++) {
                            raster.getPixel(col, row, pixel);
                            int alpha = (pixel[3] & 0xFF) << 24;
                            int red = (pixel[2] & 0xFF);
                            int green = (pixel[1] & 0xFF) << 8;
                            int blue = (pixel[0] & 0xFF) << 16;
                            bits[col] = alpha | red | green | blue;
                        }
                        int v = wh - (origin.y + row) - 1;
                        pbits.write((v*ww+origin.x)*4, bits, 0, bits.length);
                    }
                    SIZE winSize = new SIZE();
                    winSize.cx = win.getWidth();
                    winSize.cy = win.getHeight();
                    POINT winLoc = new POINT();
                    winLoc.x = win.getX();
                    winLoc.y = win.getY();
                    POINT srcLoc = new POINT();
                    BLENDFUNCTION blend = new BLENDFUNCTION();
                    HWND hWnd = getHWnd(win);
                    // extract current constant alpha setting, if possible
                    ByteByReference bref = new ByteByReference();
                    IntByReference iref = new IntByReference();
                    byte level = getAlpha(win);
                    try {
                        // GetLayeredwindowAttributes supported WinXP and later
                        if (user.GetLayeredWindowAttributes(hWnd, null, bref, iref)
                            && (iref.getValue() & User32.LWA_ALPHA) != 0) {
                            level = bref.getValue();
                        }
                    }
                    catch(UnsatisfiedLinkError e) {
                    }
                    blend.SourceConstantAlpha = level;
                    blend.AlphaFormat = User32.AC_SRC_ALPHA;
                    user.UpdateLayeredWindow(hWnd, screenDC, winLoc, winSize, memDC,
                                             srcLoc, 0, blend, User32.ULW_ALPHA);
                }
                finally {
                    user.ReleaseDC(null, screenDC);
                    if (memDC != null && oldBitmap != null) {
                        gdi.SelectObject(memDC, oldBitmap);
                    }
                }
            }

View Full Code Here

        return hwnd;
    }
    
    private void updateW32(boolean a, boolean i) {
        User32 user = User32.INSTANCE;
        GDI32 gdi = GDI32.INSTANCE;
        HWND hWnd = null;


        if (!alphaWindow.isDisplayable()) {
            alphaWindow.pack();
            hWnd = getHwnd(alphaWindow);
            int flags = user.GetWindowLong(hWnd, User32.GWL_EXSTYLE);
            flags |= User32.WS_EX_LAYERED;
            user.SetWindowLong(hWnd, User32.GWL_EXSTYLE, flags);
            Window parent = alphaWindow.getOwner();
            Point where = parent.getLocationOnScreen();
            where.translate(parent.getWidth(), 0);
            alphaWindow.setLocation(where);
        }
        else {
            hWnd = getHwnd(alphaWindow);
        }
    
        if (i) {
            int w = image.getWidth(null);
            int h = image.getHeight(null);
            HDC screenDC = user.GetDC(null);
            HDC memDC = gdi.CreateCompatibleDC(screenDC);
            HBITMAP hBitmap = null;
            HANDLE oldBitmap = null;
            
            try {
                BufferedImage buf = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB_PRE);
                Graphics g = buf.getGraphics();
                g.drawImage(image, 0, 0, w, h, null);
                
                BITMAPINFO bmi = new BITMAPINFO();
                bmi.bmiHeader.biWidth = w;
                bmi.bmiHeader.biHeight = h;
                bmi.bmiHeader.biPlanes = 1;
                bmi.bmiHeader.biBitCount = 32;
                bmi.bmiHeader.biCompression = GDI32.BI_RGB;
                bmi.bmiHeader.biSizeImage = w * h * 4;
                
                PointerByReference ppbits = new PointerByReference();
                hBitmap = gdi.CreateDIBSection(memDC, bmi, GDI32.DIB_RGB_COLORS,
                                               ppbits, null, 0);
                oldBitmap = gdi.SelectObject(memDC, hBitmap);
                Pointer pbits = ppbits.getValue();
                
                Raster raster = buf.getData();
                int[] pixel = new int[4];
                int[] bits = new int[w*h];
                for (int y=0;y < h;y++) {
                    for (int x=0;x < w;x++) {
                        raster.getPixel(x, h-y-1, pixel);
                        int alpha = (pixel[3]&0xFF)<<24;
                        int red = (pixel[2]&0xFF);
                        int green = (pixel[1]&0xFF)<<8;
                        int blue = (pixel[0]&0xFF)<<16; 
                        bits[x + y * w] = alpha|red|green|blue;
                    }
                }
                pbits.write(0, bits, 0, bits.length);
                
                SIZE size = new SIZE();
                size.cx = w;
                size.cy = h;
                POINT loc = new POINT();
                loc.x = alphaWindow.getX();
                loc.y = alphaWindow.getY();
                POINT srcLoc = new POINT();
                BLENDFUNCTION blend = new BLENDFUNCTION();
                blend.SourceConstantAlpha = (byte)(alpha * 255);
                blend.AlphaFormat = User32.AC_SRC_ALPHA;
                user.UpdateLayeredWindow(hWnd, screenDC, loc, size, memDC, srcLoc, 
                                         0, blend, User32.ULW_ALPHA);
            }
            finally {
                user.ReleaseDC(null, screenDC);
                if (hBitmap != null) {
                    gdi.SelectObject(memDC, oldBitmap);
                    gdi.DeleteObject(hBitmap);
                }
                gdi.DeleteDC(memDC);
            }
        }
        else if (a) {
            BLENDFUNCTION blend = new BLENDFUNCTION();
            blend.SourceConstantAlpha = (byte)(alpha * 255);

View Full Code Here

        private HANDLE port;
        private Map fileMap = new HashMap();
        private Map handleMap = new HashMap();
        
        private void handleChanges(FileInfo finfo) throws IOException {
            Kernel32 klib = Kernel32.INSTANCE;
            FILE_NOTIFY_INFORMATION fni = finfo.info;
            // Need an explicit read, since data was filled in asynchronously
            fni.read();
            do {
                FileEvent event = null;
                File file = new File(finfo.file, fni.getFilename());
                switch(fni.Action) {
                case Kernel32.FILE_ACTION_MODIFIED:
                    event = new FileEvent(file, FILE_MODIFIED); break;
                case Kernel32.FILE_ACTION_ADDED:
                    event = new FileEvent(file, FILE_CREATED); break;
                case Kernel32.FILE_ACTION_REMOVED:
                    event = new FileEvent(file, FILE_DELETED); break;
                case Kernel32.FILE_ACTION_RENAMED_OLD_NAME:
                    event = new FileEvent(file, FILE_NAME_CHANGED_OLD); break;
                case Kernel32.FILE_ACTION_RENAMED_NEW_NAME:
                    event = new FileEvent(file, FILE_NAME_CHANGED_NEW); break;
                default:
                    // TODO: other actions...
                    System.err.println("Unrecognized file action '" + fni.Action + "'");
                }
                if (event != null)
                    notify(event);
                fni = fni.next();
            } while (fni != null);
            // Trigger the next read
            if (!finfo.file.exists()) {
                unwatch(finfo.file);
                return;
            }
            
            if (!klib.ReadDirectoryChangesW(finfo.handle, finfo.info,
                                            finfo.info.size(), finfo.recursive,
                                            finfo.notifyMask, finfo.infoLength, 
                                            finfo.overlapped, null)) {
                int err = klib.GetLastError();
                throw new IOException("ReadDirectoryChangesW failed on "
                                      + finfo.file + ": '" 
                                      + getSystemError(err)
                                      + "' (" + err + ")");
            }

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