我想在启用屏幕缩放时从我的代码中获取正确的数据。所以我正在使用 SetProcessDPIAware()功能:
using namespace System.Windows.Forms
Clear-Host
Add-Type -AssemblyName System.Windows.Forms
Add-Type -Name User32 -Namespace W32 '
[DllImport("user32.dll")]
public static extern bool SetProcessDPIAware();'
[Cursor]::Position | Write-Host
[Screen]::PrimaryScreen.Bounds.Size | Write-Host
[SystemInformation]::PrimaryMonitorSize | Write-Host
[W32.User32]::SetProcessDPIAware()
[Cursor]::Position | Write-Host
[Screen]::PrimaryScreen.Bounds.Size | Write-Host
[SystemInformation]::PrimaryMonitorSize | Write-Host
输出:
{X=630,Y=313} # ❌ incorrect data
{Width=2048, Height=864} # ❌ incorrect data
{Width=2048, Height=864} # ❌ incorrect data
True
{X=788,Y=391} # ✔️ data became correct
{Width=2048, Height=864} # ❌ still incorrect data
{Width=2560, Height=1080} # ✔️ data became correct
与c#代码相同的情况:
using System;
using System.Windows.Forms;
using System.Runtime.InteropServices;
public class Class1
{
[DllImport("user32.dll")]
static extern bool SetProcessDPIAware();
public static void Main()
{
Console.WriteLine("\n");
Console.WriteLine(Cursor.Position);
Console.WriteLine(Screen.PrimaryScreen.Bounds.Size);
Console.WriteLine(SystemInformation.PrimaryMonitorSize);
Console.WriteLine(SetProcessDPIAware());
Console.WriteLine(Cursor.Position);
Console.WriteLine(Screen.PrimaryScreen.Bounds.Size);
Console.WriteLine(SystemInformation.PrimaryMonitorSize);
}
}
那么这是 Screen.PrimaryScreen.Bounds
的错误,还是我必须执行其他操作才能从此属性获取正确的数据?
如果唯一的方法是使用 SystemInformation
类,那么我如何获取有关第二个显示器的数据,而不仅仅是有关主要显示器的数据?
或 有没有办法设置this powershell.exe/powershell_ise.exe 的设置 ?
最佳答案
这是我使用并为我工作的:
Add-Type -TypeDefinition @'
using System;
using System.Runtime.InteropServices;
using System.Drawing;
public class DPI
{
[DllImport("gdi32.dll")]
static extern int GetDeviceCaps(IntPtr hdc, int nIndex);
public enum DeviceCap
{
VERTRES = 10,
DESKTOPVERTRES = 117
}
public static float scaling()
{
Graphics g = Graphics.FromHwnd(IntPtr.Zero);
IntPtr desktop = g.GetHdc();
int LogicalScreenHeight = GetDeviceCaps(desktop, (int)DeviceCap.VERTRES);
int PhysicalScreenHeight = GetDeviceCaps(desktop, (int)DeviceCap.DESKTOPVERTRES);
return (float)PhysicalScreenHeight / (float)LogicalScreenHeight;
}
}
'@ -ReferencedAssemblies System.Drawing -IgnoreWarnings -WarningAction Ignore
然后你可以像这样调用这个类并得到 DPI:
$DPI = [math]::round([dpi]::scaling(), 2) * 100
$bounds = [System.Windows.Forms.Screen]::PrimaryScreen.WorkingArea
$bounds.Width = ($bounds.Width / 100) * $DPI
$bounds.Height = ($bounds.Height / 100) * $DPI
最后,始终使用相对尺寸,例如:
$form.Size = [System.Drawing.Size]::new(($bounds.Width / X),($bounds.Height / X))
$form.Add_Resize({
$txtBox.Size = [System.Drawing.Size]::new(($this.Width - X), XX)
})
依此类推,其中 X
可以是 int
或 double
。
- Source for the class .我不确定这是否是 OP,因为我在不同的网站上看到过相同的代码。
- DPI Aware 表单示例:https://stackoverflow.com/a/68240960/15339544
- 左显示器:1920x1080 - 175% 缩放比例
- 右监视器:1920x1080 - 100% 缩放
关于c# - 禁用高 DPI 缩放,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/69786234/