Examples with Pointer com.sun.jna.Pointer used on opensource projects

Example 31 with Pointer

use of com.sun.jna.Pointer in project jna by java-native-access.

the class W32Service method getFailureActions.

/**
	 * Get the failure actions of the specified service. Corresponds to 
	 * <a href="https://msdn.microsoft.com/en-us/library/windows/desktop/ms681988.aspx">QueryServiceConfig2</a>
	 * with parameter dwInfoLevel set to SERVICE_CONFIG_FAILURE_ACTIONS. 
	 */
public SERVICE_FAILURE_ACTIONS getFailureActions() {
    Pointer buffer = queryServiceConfig2(Winsvc.SERVICE_CONFIG_FAILURE_ACTIONS);
    SERVICE_FAILURE_ACTIONS result = new SERVICE_FAILURE_ACTIONS(buffer);
    return result;
}

Example 32 with Pointer

use of com.sun.jna.Pointer in project jna by java-native-access.

the class OpenGL32Util method countGpusNV.

/**
     * Count GPUs
     * @return the number of available GPUs
     */
public static int countGpusNV() {
    // create a dummy window
    HWND hWnd = User32Util.createWindow("Message", null, 0, 0, 0, 0, 0, null, null, null, null);
    HDC hdc = User32.INSTANCE.GetDC(hWnd);
    // set a compatible pixel format
    PIXELFORMATDESCRIPTOR.ByReference pfd = new PIXELFORMATDESCRIPTOR.ByReference();
    pfd.nVersion = 1;
    pfd.dwFlags = WinGDI.PFD_DRAW_TO_WINDOW | WinGDI.PFD_SUPPORT_OPENGL | WinGDI.PFD_DOUBLEBUFFER;
    pfd.iPixelType = WinGDI.PFD_TYPE_RGBA;
    pfd.cColorBits = 24;
    pfd.cDepthBits = 16;
    pfd.iLayerType = WinGDI.PFD_MAIN_PLANE;
    GDI32.INSTANCE.SetPixelFormat(hdc, GDI32.INSTANCE.ChoosePixelFormat(hdc, pfd), pfd);
    // create the OpenGL context to get function address
    WinDef.HGLRC hGLRC = OpenGL32.INSTANCE.wglCreateContext(hdc);
    OpenGL32.INSTANCE.wglMakeCurrent(hdc, hGLRC);
    Pointer funcPointer = OpenGL32.INSTANCE.wglGetProcAddress("wglEnumGpusNV");
    Function fncEnumGpusNV = (funcPointer == null) ? null : Function.getFunction(funcPointer);
    OpenGL32.INSTANCE.wglDeleteContext(hGLRC);
    // destroy the window
    User32.INSTANCE.ReleaseDC(hWnd, hdc);
    User32Util.destroyWindow(hWnd);
    // abort if the nVidia extensions are not present
    if (fncEnumGpusNV == null)
        return 0;
    // enumerate nVidia adapters
    HGLRCByReference hGPU = new HGLRCByReference();
    for (int i = 0; i < 16; i++) {
        Boolean ok = (Boolean) fncEnumGpusNV.invoke(Boolean.class, new Object[] { Integer.valueOf(i), hGPU });
        if (!ok.booleanValue())
            return i;
    }
    return 0;
}

Example 33 with Pointer

use of com.sun.jna.Pointer in project intellij-community by JetBrains.

the class Restarter method restartOnWindows.

private static void restartOnWindows(String... beforeRestart) throws IOException {
    Kernel32 kernel32 = (Kernel32) Native.loadLibrary("kernel32", Kernel32.class);
    Shell32 shell32 = (Shell32) Native.loadLibrary("shell32", Shell32.class);
    int pid = kernel32.GetCurrentProcessId();
    IntByReference argc = new IntByReference();
    Pointer argvPtr = shell32.CommandLineToArgvW(kernel32.GetCommandLineW(), argc);
    String[] argv = getRestartArgv(argvPtr.getWideStringArray(0, argc.getValue()));
    kernel32.LocalFree(argvPtr);
    // See https://blogs.msdn.microsoft.com/oldnewthing/20060515-07/?p=31203
    // argv[0] as the program name is only a convention, i.e. there is no guarantee
    // the name is the full path to the executable.
    //
    // See https://msdn.microsoft.com/en-us/library/windows/desktop/ms683197(v=vs.85).aspx
    // To retrieve the full path to the executable, use "GetModuleFileName(NULL, ...)".
    //
    // Note: We use 32,767 as buffer size to avoid limiting ourselves to MAX_PATH (260).
    char[] buffer = new char[32767];
    if (kernel32.GetModuleFileNameW(null, buffer, new WinDef.DWORD(buffer.length)).intValue() > 0) {
        argv[0] = Native.toString(buffer);
    }
    List<String> args = new ArrayList<>();
    args.add(String.valueOf(pid));
    args.add(String.valueOf(beforeRestart.length));
    Collections.addAll(args, beforeRestart);
    args.add(String.valueOf(argv.length));
    Collections.addAll(args, argv);
    runRestarter(new File(PathManager.getBinPath(), "restarter.exe"), args);
    // Since the process ID is passed through the command line, we want to make sure that we don't exit before the "restarter"
    // process has a chance to open the handle to our process, and that it doesn't wait for the termination of an unrelated
    // process which happened to have the same process ID.
    TimeoutUtil.sleep(500);
}

Example 34 with Pointer

use of com.sun.jna.Pointer in project intellij-community by JetBrains.

the class Win7TaskBar method getHandle.

private static WinDef.HWND getHandle(IdeFrame frame) {
    try {
        ComponentPeer peer = ((Component) frame).getPeer();
        Method getHWnd = peer.getClass().getMethod("getHWnd");
        return new WinDef.HWND(new Pointer((Long) getHWnd.invoke(peer)));
    } catch (Throwable e) {
        LOG.error(e);
        return null;
    }
}

Example 35 with Pointer

use of com.sun.jna.Pointer in project intellij-community by JetBrains.

the class LibNotifyWrapper method notify.

@Override
public void notify(@NotNull String name, @NotNull String title, @NotNull String description) {
    synchronized (myLock) {
        if (!myDisposed) {
            Pointer notification = myLibNotify.notify_notification_new(title, description, myIcon);
            myLibNotify.notify_notification_show(notification, null);
        }
    }
}