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

com.sun.jna.examples.win32.User32.POINT
Provides access to the w32 user32 library. Incomplete implementation to support demos. @author Todd Fast, todd.fast@sun.com @author twalljava@dev.java.net @author Tobias Wolf, wolf.tobias@gmx.net @author Markus KARG (markus[at]headcrashing[dot]eu)

                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);
        }

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                    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);

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                    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);

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                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);
        }

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    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:

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            }
        }.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;
            }

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                    }
                    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();

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                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);

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            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;
            }

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                        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();

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Related Classes of com.sun.jna.platform.win32.User32

com.sun.jna.contrib.demo.AlphaMaskDemo

com.sun.jna.contrib.demo.KeyHook

com.sun.jna.contrib.demo.MonitorInfoDemo

com.sun.jna.examples.AlphaMaskDemo

com.sun.jna.examples.KeyboardUtils$W32KeyboardUtils

com.sun.jna.examples.WindowUtils$W32WindowUtils

com.sun.jna.examples.WindowUtils$W32WindowUtils$W32RepaintTrigger

com.sun.jna.examples.WindowUtils$W32WindowUtils$W32TransparentContentPane

com.sun.jna.Memory

com.sun.jna.platform.win32.Advapi32Test

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