在更高 DPI 设置下将 Screen.PrimaryScreen.WorkingArea 转换为 WPF 尺寸
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Transform Screen.PrimaryScreen.WorkingArea to WPF dimensions at higher DPI settings
提问by JoeMjr2
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):
我的 WPF 应用程序中有以下功能，用于将窗口大小调整为主屏幕的工作区域（整个屏幕减去任务栏）：
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;
}
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.
只要机器的 DPI 设置为 100%，这就会非常有效。但是，如果他们将 DPI 设置得更高，则这不起作用，并且窗口会溢出屏幕。我意识到这是因为 WPF 像素与“真实”屏幕像素不同，并且因为我使用 WinForms 属性来获取屏幕尺寸。
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?
我不知道等效于 Screen.PrimaryScreen.WorkingArea 的 WPF。无论 DPI 设置如何，我都可以为此使用什么东西吗？
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.
如果没有，那么我想我需要进行某种缩放，但我不确定如何确定要缩放的比例。
How can I modify my function to account for different DPI settings?
如何修改我的函数以适应不同的 DPI 设置？
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.
顺便说一句，如果你想知道为什么我需要使用这个函数而不是仅仅最大化窗口，那是因为它是一个无边界窗口（WindowStyle="None"），如果你最大化这种类型的窗口，它会覆盖任务栏。
回答by Clemens
You get the transformed work area size from the SystemParameters.WorkAreaproperty:
您可以从SystemParameters.WorkArea属性中获取转换后的工作区大小：
Top = 0;
Left = 0;
Width = System.Windows.SystemParameters.WorkArea.Width;
Height = System.Windows.SystemParameters.WorkArea.Height;
回答by Sheridan
In WPF, you can use the SystemParameters.PrimaryScreenWidthand SystemParameters.PrimaryScreenHeightproperties to find out the primary screen dimensions:
在 WPF 中，您可以使用SystemParameters.PrimaryScreenWidth和SystemParameters.PrimaryScreenHeight属性来找出主屏幕尺寸：
double width = SystemParameters.PrimaryScreenWidth;
double height = SystemParameters.PrimaryScreenHeight;
回答by A.Holz
If you wanna get the dimensions of both Screens you simply can use:
如果您想获得两个屏幕的尺寸，您只需使用：
var primaryScreen =
System.Windows.Forms
.Screen
.AllScreens
.Where(s => s.Primary)
.FirstOrDefault();
var secondaryScreen =
System.Windows.Forms
.Screen
.AllScreens
.Where(s => !s.Primary)
.FirstOrDefault();
After this you can reach Width, Height etc. by using
在此之后，您可以通过使用达到宽度、高度等
primaryScreen.Bounds.Width
So Long ;)
太长 ;）
