List of UpdateLayeredWindow() Examples

Examples of UpdateLayeredWindow()

com.sun.jna.examples.win32.User32.UpdateLayeredWindow()
com.sun.jna.platform.win32.User32.UpdateLayeredWindow()
The UpdateLayeredWindow function updates the position, size, shape, content, and translucency of a layered window. @param hwnd Handle to a layered window. A layered window is created by specifying WS_EX_LAYERED when creating the window with the CreateWindowEx function. @param hdcDst Handle to a device context (DC) for the screen. This handle is obtained by specifying NULL when calling the function. It is used for palette color matching when the window contents are updated. If hdcDst isNULL, the default palette will be used. If hdcSrc is NULL, hdcDst must be NULL. @param pptDst Pointer to a POINT structure that specifies the new screen position of the layered window. If the current position is not changing, pptDst can be NULL. @param psize Pointer to a SIZE structure that specifies the new size of the layered window. If the size of the window is not changing, psize can be NULL. If hdcSrc is NULL, psize must be NULL. @param hdcSrc Handle to a DC for the surface that defines the layered window. This handle can be obtained by calling the CreateCompatibleDC function. If the shape and visual context of the window are not changing, hdcSrc can be NULL. @param pptSrc Pointer to a POINT structure that specifies the location of the layer in the device context. If hdcSrc is NULL, pptSrc should be NULL. @param crKey Pointer to a COLORREF value that specifies the color key to be used when composing the layered window. To generate a COLORREF, use the RGB macro. @param pblend Pointer to a BLENDFUNCTION structure that specifies the transparency value to be used when composing the layered window. @param dwFlags ULW_* flags. @return If the function succeeds, the return value is nonzero. If thefunction fails, the return value is zero. To get extended error information, call GetLastError.

Examples of com.sun.jna.examples.win32.User32.UpdateLayeredWindow()

                        // 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);
                    }
                    else if (alpha == 1f) {
                        flags &= ~User32.WS_EX_LAYERED;

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Examples of com.sun.jna.examples.win32.User32.UpdateLayeredWindow()

                        && (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) {

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Examples of com.sun.jna.examples.win32.User32.UpdateLayeredWindow()

                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) {

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Examples of com.sun.jna.examples.win32.User32.UpdateLayeredWindow()

        }
        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);
        }
        
        if (!alphaWindow.isVisible()) {
            alphaWindow.setVisible(true);

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Examples of com.sun.jna.examples.win32.User32.UpdateLayeredWindow()

                        // 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);
                    }
                    else if (alpha == 1f) {
                        flags &= ~User32.WS_EX_LAYERED;

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Examples of com.sun.jna.examples.win32.User32.UpdateLayeredWindow()

                    }
                    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) {

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Examples of com.sun.jna.examples.win32.User32.UpdateLayeredWindow()

                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) {

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Examples of com.sun.jna.examples.win32.User32.UpdateLayeredWindow()

        }
        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);
        }
        
        if (!alphaWindow.isVisible()) {
            alphaWindow.setVisible(true);

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Examples of com.sun.jna.examples.win32.User32.UpdateLayeredWindow()

                        // 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);
                    }
                    else if (alpha == 1f) {
                        flags &= ~User32.WS_EX_LAYERED;

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Examples of com.sun.jna.examples.win32.User32.UpdateLayeredWindow()

                    }
                    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) {

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