Question

如何检测Windows是第一次创建并关闭（未最小化）？我需要记录创建和关闭属于进程的新窗口的时间。

我目前的实施是：

public partial class Form2 : Form
{

    WinEventDelegate dele2 = null;

    delegate void WinEventDelegate(IntPtr hWinEventHook, uint eventType, IntPtr hwnd, int idObject, int idChild, uint dwEventThread, uint dwmsEventTime);

    [DllImport("user32.dll")]
    static extern IntPtr SetWinEventHook(uint eventMin, uint eventMax, IntPtr hmodWinEventProc, WinEventDelegate lpfnWinEventProc, uint idProcess, uint idThread, uint dwFlags);

    private const int WINEVENT_INCONTEXT = 4;
    private const int WINEVENT_OUTOFCONTEXT = 0;
    private const int WINEVENT_SKIPOWNPROCESS = 2;
    private const int WINEVENT_SKIPOWNTHREAD = 1;
    private const uint EVENT_SYSTEM_FOREGROUND = 3;
    private const uint EVENT_SYSTEM_DESTROY = 0x8001;
    private const uint EVENT_OBJECT_CREATE = 0x8000;

    [DllImport("user32.dll")]
    static extern IntPtr GetForegroundWindow();

    [DllImport("user32.dll")]
    static extern int GetWindowText(IntPtr hWnd, StringBuilder text, int count);

    [DllImport("user32.dll")]
    public static extern IntPtr GetWindowThreadProcessId(IntPtr hWnd, out uint ProcessId);

    public Form2()
    {
        InitializeComponent();

        dele2 = new WinEventDelegate(WinEventProcDestory);
        SetWinEventHook(EVENT_OBJECT_CREATE, EVENT_SYSTEM_DESTROY, IntPtr.Zero, dele2, 0, 0, WINEVENT_OUTOFCONTEXT);
    }

    private string GetActiveWindowTitle()
    {
        const int nChars = 256;
        IntPtr handle = IntPtr.Zero;
        StringBuilder Buff = new StringBuilder(nChars);
        handle = GetForegroundWindow();

        if (GetWindowText(handle, Buff, nChars) > 0)
        {
            return Buff.ToString();
        }
        return null;
    }

    private String GetProcessName(IntPtr hwnd)
    {
        uint pid;
        IntPtr ptr = GetWindowThreadProcessId(hwnd, out pid);
        Process p = Process.GetProcessById((int)pid);

        return p.ProcessName;
    }

    public void WinEventProcDestory(IntPtr hWinEventHook, uint eventType, IntPtr hwnd, int idObject, int idChild, uint dwEventThread, uint dwmsEventTime)
    {
        String windowTitle = GetActiveWindowTitle();
        this.dataGridView2.Rows.Add(windowTitle, DateTime.Now, "-");
    }
}

正如您在实现中所看到的，我正在将每个事件记录到数据网格中，并且一旦启动应用程序，我就会为此或我打开的任何其他应用程序获取10个以上的事件。我只想到一个。

或者更好的方法是使用Java（JNI）吗？对所有解决方案开放。

提前致谢！

检测窗户打开/关闭的时间

0 个答案: