如何在所有窗口之上显示半透明窗口？ [英] How to show semitransparent window above all windows?

问题描述

如何在所有窗口之上显示半透明窗口？并在此窗口中加载一些信息：image / text / button？我需要在windows / linux（或至少窗口）上显示一些半透明区域，在所有的桌面上，在该区域的中心，我需要显示一些图像与文本。但是，所有这一切，它不必关注当前的工作应用程序。它将被自动隐藏。
请参见图像：正常的desctop和我想要的半透明窗口。
谢谢。

How to show semitransparent window above all windows? And to load some info in this window: image/text/button? I need to show some semitransparent region above all desctop table in windows/linux (or at least windows), and in the center of that region I need to show some image with text. But with all that it must not take focus of the current working application. It will be hidden automatically. Please see images: normal desctop and the semitransparent window I want to make. Thanks.

推荐答案

在C＃中，这是你所需要的代码：

In C#, this is the code that does what you need:

注意：它不会专注于启动，

Note: It does not steel focus on startup and it does not steel focus when clicking on it.

public static class ExtendedWindowStyles
{

    public static readonly Int32

    WS_EX_ACCEPTFILES = 0x00000010,

    WS_EX_APPWINDOW = 0x00040000,

    WS_EX_CLIENTEDGE = 0x00000200,

    WS_EX_COMPOSITED = 0x02000000,

    WS_EX_CONTEXTHELP = 0x00000400,

    WS_EX_CONTROLPARENT = 0x00010000,

    WS_EX_DLGMODALFRAME = 0x00000001,

    WS_EX_LAYERED = 0x00080000,

    WS_EX_LAYOUTRTL = 0x00400000,

    WS_EX_LEFT = 0x00000000,

    WS_EX_LEFTSCROLLBAR = 0x00004000,

    WS_EX_LTRREADING = 0x00000000,

    WS_EX_MDICHILD = 0x00000040,

    WS_EX_NOACTIVATE = 0x08000000,

    WS_EX_NOINHERITLAYOUT = 0x00100000,

    WS_EX_NOPARENTNOTIFY = 0x00000004,

    WS_EX_OVERLAPPEDWINDOW = WS_EX_WINDOWEDGE | WS_EX_CLIENTEDGE,

    WS_EX_PALETTEWINDOW = WS_EX_WINDOWEDGE | WS_EX_TOOLWINDOW | WS_EX_TOPMOST,

    WS_EX_RIGHT = 0x00001000,

    WS_EX_RIGHTSCROLLBAR = 0x00000000,

    WS_EX_RTLREADING = 0x00002000,

    WS_EX_STATICEDGE = 0x00020000,

    WS_EX_TOOLWINDOW = 0x00000080,

    WS_EX_TOPMOST = 0x00000008,

    WS_EX_TRANSPARENT = 0x00000020,

    WS_EX_WINDOWEDGE = 0x00000100;

}

public partial class Form1 : Form
{
    public Form1()
    {
        InitializeComponent();
        this.TopMost = true;
    }

    protected override bool ShowWithoutActivation
    {
        get
        {
            return true;
        }
    }
    protected override CreateParams CreateParams
    {
        get
        {
            var currentParameters = base.CreateParams;

            currentParameters.ExStyle |= (int)(ExtendedWindowStyles.WS_EX_NOACTIVATE | ExtendedWindowStyles.WS_EX_TOOLWINDOW);

            return currentParameters;
        }
    }

    private void Form1_Load(object sender, EventArgs e)
    {
        this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;
        this.ClientSize = Screen.PrimaryScreen.Bounds.Size;
        this.Left = 0;
        this.Top = 0;
        this.Opacity = 0.5;
    }
}

（图片，标签等）。

您只需通过使用form.ShowDialog（）;从应用程序代码中弹出此表单。如果你想从任何地方弹出这个窗体，使它成为一个可执行文件，并在需要时运行它。

You just have to pop this form from your application code by using form.ShowDialog ();. If you want to pop this form from whatever place, make it an executable and run it whenever you need it.

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