Package com.sun.jna.examples.win32.User32

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


            @Override
      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 = WinGDI.BI_RGB;
                        bmi.bmiHeader.biSizeImage = ww * wh * 4;
                        PointerByReference ppbits = new PointerByReference();
                        hBitmap = gdi.CreateDIBSection(memDC, bmi,
                                                       WinGDI.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


                    int flags = user.GetWindowLong(hWnd, User32.GWL_EXSTYLE);
                    byte level = (byte)((int)(255 * alpha) & 0xFF);
                    if (isTransparent(w)) {
                        // If already using UpdateLayeredWindow, continue to
                        // do so
                        BLENDFUNCTION blend = new BLENDFUNCTION();
                        blend.SourceConstantAlpha = level;
                        blend.AlphaFormat = User32.AC_SRC_ALPHA;
                        user.UpdateLayeredWindow(hWnd, null, null, null, null,
                                                 null, 0, blend,
                                                 User32.ULW_ALPHA);
View Full Code Here

                    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
View Full Code Here

                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);
            blend.AlphaFormat = User32.AC_SRC_ALPHA;
            user.UpdateLayeredWindow(hWnd, null, null, null, null, null,
                                     0, blend, User32.ULW_ALPHA);
        }
View Full Code Here

                    int flags = user.GetWindowLong(hWnd, User32.GWL_EXSTYLE);
                    byte level = (byte)((int)(255 * alpha) & 0xFF);
                    if (usingUpdateLayeredWindow(w)) {
                        // If already using UpdateLayeredWindow, continue to
                        // do so
                        BLENDFUNCTION blend = new BLENDFUNCTION();
                        blend.SourceConstantAlpha = level;
                        blend.AlphaFormat = User32.AC_SRC_ALPHA;
                        user.UpdateLayeredWindow(hWnd, null, null, null, null,
                                                 null, 0, blend,
                                                 User32.ULW_ALPHA);
View Full Code Here

                    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);
View Full Code Here

                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);
            blend.AlphaFormat = User32.AC_SRC_ALPHA;
            user.UpdateLayeredWindow(hWnd, null, null, null, null, null,
                                     0, blend, User32.ULW_ALPHA);
        }
View Full Code Here

    private static LowLevelKeyboardProc keyboardHook;

    public static void main(String[] args) {
        final User32 lib = User32.INSTANCE;
        HMODULE hMod = Kernel32.INSTANCE.GetModuleHandle(null);
        keyboardHook = new LowLevelKeyboardProc() {
            public LRESULT callback(int nCode, WPARAM wParam, KBDLLHOOKSTRUCT info) {
                if (nCode >= 0) {
                    switch(wParam.intValue()) {
                    case User32.WM_KEYUP:
                    case User32.WM_KEYDOWN:
View Full Code Here

            }
        }.start();

        // This bit never returns from GetMessage
        int result;
        MSG msg = new MSG();
        while ((result = lib.GetMessage(msg, null, 0, 0)) != 0) {
            if (result == -1) {
                System.err.println("error in get message");
                break;
            }
View Full Code Here

                    }
                    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();
View Full Code Here

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