Package com.sun.jna.platform.win32.WinUser

Examples of com.sun.jna.platform.win32.WinUser.BLENDFUNCTION

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    if (W32Errors.SUCCEEDED(hr.intValue()))
      Ole32.INSTANCE.CoUninitialize();
  }

  public void testCoCreateInstance() {
    HRESULT hrCI = Ole32.INSTANCE.CoInitializeEx(null, 0);

    GUID guid = Ole32Util
        .getGUIDFromString("{00021401-0000-0000-C000-000000000046}"); // Shell object
    GUID riid = Ole32Util
        .getGUIDFromString("{000214EE-0000-0000-C000-000000000046}"); // IShellLinkA

    PointerByReference pDispatch = new PointerByReference();

    HRESULT hr = Ole32.INSTANCE.CoCreateInstance(guid, null, // pOuter =
                                  // null, no
                                  // aggregation
        WTypes.CLSCTX_LOCAL_SERVER, riid, pDispatch);
    assertTrue(W32Errors.SUCCEEDED(hr.intValue()));
    assertTrue(!pDispatch.equals(Pointer.NULL));
    // We leak this iUnknown reference because we don't have the JNACOM lib
    // here to wrap the native iUnknown pointer and call iUnknown.release()
    if (W32Errors.SUCCEEDED(hrCI.intValue()))
      Ole32.INSTANCE.CoUninitialize();
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   * @return
   *  A GUID.
   */
  public static GUID getGUIDFromString(String guidString) {
    GUID lpiid = new GUID();
      HRESULT hr = Ole32.INSTANCE.IIDFromString(guidString, lpiid);
      if (! hr.equals(W32Errors.S_OK)) {
        throw new RuntimeException(hr.toString());
      }
      return lpiid;
  }
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   * @return
   *  New GUID.
   */
  public static GUID generateGUID() {
    GUID pguid = new GUID();
      HRESULT hr = Ole32.INSTANCE.CoCreateGuid(pguid);
      if (! hr.equals(W32Errors.S_OK)) {
        throw new RuntimeException(hr.toString());
      }
      return pguid;
  }
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                    int flags = user.GetWindowLong(hWnd, WinUser.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 = WinUser.AC_SRC_ALPHA;
                        user.UpdateLayeredWindow(hWnd, null, null, null, null,
                                                 null, 0, blend,
                                                 WinUser.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 = WinUser.AC_SRC_ALPHA;
                user.UpdateLayeredWindow(hWnd, screenDC, loc, size, memDC, srcLoc,
                                         0, blend, WinUser.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 = WinUser.AC_SRC_ALPHA;
            user.UpdateLayeredWindow(hWnd, null, null, null, null, null,
                                     0, blend, WinUser.ULW_ALPHA);
        }
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                    int flags = user.GetWindowLong(hWnd, WinUser.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 = WinUser.AC_SRC_ALPHA;
                        user.UpdateLayeredWindow(hWnd, null, null, null, null,
                                                 null, 0, blend,
                                                 WinUser.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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                null, 1, null, 0, pcbNeeded, pcReturned);
        if (pcbNeeded.getValue() <= 0) {
            return new PRINTER_INFO_1[0];
        }

        PRINTER_INFO_1 pPrinterEnum = new PRINTER_INFO_1(pcbNeeded.getValue());
        if (!Winspool.INSTANCE.EnumPrinters(Winspool.PRINTER_ENUM_LOCAL,
                null, 1, pPrinterEnum.getPointer(), pcbNeeded.getValue(), pcbNeeded, pcReturned)) {
            throw new Win32Exception(Kernel32.INSTANCE.GetLastError());
        }

        pPrinterEnum.read();

        return (PRINTER_INFO_1[]) pPrinterEnum.toArray(pcReturned.getValue());
    }
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                null, 4, null, 0, pcbNeeded, pcReturned);
        if (pcbNeeded.getValue() <= 0) {
            return new PRINTER_INFO_4[0];
        }

        PRINTER_INFO_4 pPrinterEnum = new PRINTER_INFO_4(pcbNeeded.getValue());
        if (!Winspool.INSTANCE.EnumPrinters(Winspool.PRINTER_ENUM_LOCAL,
                null, 4, pPrinterEnum.getPointer(), pcbNeeded.getValue(), pcbNeeded, pcReturned)) {
            throw new Win32Exception(Kernel32.INSTANCE.GetLastError());
        }

        pPrinterEnum.read();

        return (PRINTER_INFO_4[]) pPrinterEnum.toArray(pcReturned.getValue());
    }
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