Question

我正在尝试在WPF应用程序中检测Windows注销或关机。有人可以帮忙吗？

xaml.cs

private static int WM_QUERYENDSESSION = 0x11;
private static bool systemShutdown = false;
public static event Microsoft.Win32.SessionEndingEventHandler SessionEnding;

protected virtual void WndProc(ref System.Windows.Forms.Message m)
{
    if (m.Msg == WM_QUERYENDSESSION)
    {
        MessageBox.Show("queryendsession: this is a logoff, shutdown, or reboot");
        systemShutdown = true;
    }

    // If this is WM_QUERYENDSESSION, the closing event should be  
    // raised in the base WndProc.  
    base.WndProc(ref m);  //Error

} //WndProc

错误：RadWindow不包含“ WndProc”的定义

Answer 1

<section class="skill"> <p class="title">skill</p> <ul class="data"> <li class="tool"> <figure class="Illustrator"> <img class="meter" src="https://cdn-ak.f.st-hatena.com/images/fotolife/O/O2_milk/20190224/20190224221627.png" alt="advanced" /> <img class="meter-t" src="https://cdn-ak.f.st-hatena.com/images/fotolife/O/O2_milk/20190224/20190224221624.png" alt="Illustrator" /> <figcaption>Illustrator</figcaption> </figure> <figure class="Photoshop"> <img class="meter" src="https://cdn-ak.f.st-hatena.com/images/fotolife/O/O2_milk/20190224/20190224221629.png" alt="intermediate" /> <img class="meter-t" src="https://cdn-ak.f.st-hatena.com/images/fotolife/O/O2_milk/20190224/20190224221753.png" alt="Photoshop" /> <figcaption>Photoshop</figcaption> </figure> <figure class="Indesign"> <img class="meter" src="https://cdn-ak.f.st-hatena.com/images/fotolife/O/O2_milk/20190224/20190224221632.png" alt="elementary" /> <img class="meter-t" src="https://cdn-ak.f.st-hatena.com/images/fotolife/O/O2_milk/20190224/20190224221719.png" alt="Indesign" /> <figcaption>Indesign</figcaption> </figure> <figure class="Vectorworks"> <img class="meter" src="https://cdn-ak.f.st-hatena.com/images/fotolife/O/O2_milk/20190224/20190224221629.png" alt="intermediate" /> <img class="meter-t" src="https://cdn-ak.f.st-hatena.com/images/fotolife/O/O2_milk/20190224/20190224221747.png" alt="Vectorworks" /> <figcaption>Vectorworks</figcaption> </figure> <figure class="Shade"> <img class="meter" src="https://cdn-ak.f.st-hatena.com/images/fotolife/O/O2_milk/20190224/20190224221629.png" alt="intermediate" /> <img class="meter-t" src="https://cdn-ak.f.st-hatena.com/images/fotolife/O/O2_milk/20190224/20190224221750.png" alt="Shade" /> <figcaption>Shade</figcaption> </figure> </li> <li class="code"> <figure class="HTML"> <img class="meter" src="https://cdn-ak.f.st-hatena.com/images/fotolife/O/O2_milk/20190224/20190224221632.png" alt="elementary" /> <img class="meter-t" src="https://cdn-ak.f.st-hatena.com/images/fotolife/O/O2_milk/20190224/20190224221722.png" alt="HTML" /> <figcaption>HTML</figcaption> </figure> <figure class="CSS"> <img class="meter" src="https://cdn-ak.f.st-hatena.com/images/fotolife/O/O2_milk/20190224/20190224221632.png" alt="elementary" /> <img class="meter-t" src="https://cdn-ak.f.st-hatena.com/images/fotolife/O/O2_milk/20190224/20190224221725.png" alt="CSS" /> <figcaption>CSS</figcaption> </figure> <figure class="Javascript"> <img class="meter" src="https://cdn-ak.f.st-hatena.com/images/fotolife/O/O2_milk/20190224/20190224221634.png" alt="beginner" /> <img class="meter-t" src="https://cdn-ak.f.st-hatena.com/images/fotolife/O/O2_milk/20190224/20190224221717.png" alt="Javascript" /> <figcaption>Javascript</figcaption> </figure> <figure class="PHP"> <img class="meter" src="https://cdn-ak.f.st-hatena.com/images/fotolife/O/O2_milk/20190224/20190224221634.png" alt="beginner" /> <img class="meter-t" src="https://cdn-ak.f.st-hatena.com/images/fotolife/O/O2_milk/20190224/20190224221714.png" alt="PHP" /> <figcaption>PHP</figcaption> </figure> </li> </ul> </section>加载后，您应该能够获得对父WPF窗口的引用并创建Win32挂钩：

RadWindow

RadWindow WPF中的WndProc

1 个答案: