变换Screen.PrimaryScreen.WorkingArea到WPF尺寸在更高的DPI设置 [英] Transform Screen.PrimaryScreen.WorkingArea to WPF dimensions at higher DPI settings

问题描述

我在我的WPF应用程序下面的功能，我使用的窗口大小调整到主屏幕上的工作区域（整个屏幕减去任务栏）：

I have the following function in my WPF application that I use to resize a window to the primary screen's working area (the whole screen minus the taskbar):

private void Window_Loaded(object sender, RoutedEventArgs e)
{
    int theHeight = System.Windows.Forms.Screen.PrimaryScreen.WorkingArea.Height;
    int theWidth = System.Windows.Forms.Screen.PrimaryScreen.WorkingArea.Width;

    this.MaxHeight = theHeight;
    this.MinHeight = theHeight;
    this.MaxWidth = theWidth;
    this.MinWidth = theWidth;

    this.Height = theHeight;
    this.Width = theWidth;

    this.Top = 0;
    this.Left = 0;
}

这工作得非常好，只要机器的DPI设置为100％。但是，如果他们有DPI设置越高，那么这个是不行的，和窗口洒在屏幕上。我知道这是因为WPF像素是不一样的真正的屏幕像素，而且由于我使用的WinForms的属性来获取屏幕尺寸。

This works very well, as long as the machine's DPI is set at 100%. However, if they have the DPI set higher, then this doesn't work, and the window spills off the screen. I realize that this is because WPF pixels aren't the same as "real" screen pixels, and because I'm using a WinForms property to get the screen dimensions.

我不知道WPF相当于一个以Screen.PrimaryScreen.WorkingArea的。有什么我可以用这个，将工作的DPI设置，无论？

I don't know of an WPF equivalent to Screen.PrimaryScreen.WorkingArea. Is there something I can use for this that would work regardless of DPI setting?

如果没有的话，我想我需要某种形式的缩放，但我不知道如何确定有多少比例通过。

If not, then I guess I need to some sort of scaling, but I'm not sure how to determine how much to scale by.

如何修改我的功能，以适应不同的DPI设置？

How can I modify my function to account for different DPI settings?

顺便说一句，如果你想知道为什么我需要使用此功能，而不仅仅是最大化窗口，那是因为它是一个没有国界的窗口（WindowStyle =无），如果您最大化这种类型的窗口，它涵盖了任务栏。

By the way, in case you're wondering why I need to use this function instead of just maximizing the window, it's because it's a borderless window (WindowStyle="None"), and if you maximize this type of window, it covers the taskbar.

推荐答案

您得到的的 SystemParameters.WorkArea 属性：

You get the transformed work area size from the SystemParameters.WorkArea property:

Top = 0;
Left = 0;
Width = System.Windows.SystemParameters.WorkArea.Width;
Height = System.Windows.SystemParameters.WorkArea.Height;

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