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46 lines
2.1 KiB
46 lines
2.1 KiB
using System;
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using System.Collections.Generic;
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using System.Runtime.InteropServices;
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using System.Text;
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namespace Apewer.Internals.Interop
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{
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internal class SHCore
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{
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/// <summary>Retrieves the dots per inch (dpi) awareness of the specified process.</summary>
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/// <param name="hprocess">Handle of the process that is being queried. If this parameter is NULL, the current process is queried.</param>
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/// <param name="awareness">The DPI awareness of the specified process. Possible values are from the PROCESS_DPI_AWARENESS enumeration.</param>
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/// <remarks>最小支持 Windows 8.1 及 Windows Server 2012 R2。</remarks>
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[DllImport("SHCore.dll", SetLastError = true)]
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public static extern void GetProcessDpiAwareness(IntPtr hprocess, out PROCESS_DPI_AWARENESS awareness);
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[DllImport("SHCore.dll", SetLastError = true)]
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public static extern bool SetProcessDpiAwareness(PROCESS_DPI_AWARENESS awareness);
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public enum PROCESS_DPI_AWARENESS
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{
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/// <summary>DPI unaware.<br />
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/// This app does not scale for DPI changes and is always assumed to have a scale factor of 100% (96 DPI).<br />
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/// It will be automatically scaled by the system on any other DPI setting.</summary>
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Process_DPI_Unaware = 0,
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/// <summary>System DPI aware.<br />
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/// This app does not scale for DPI changes.<br />
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/// It will query for the DPI once and use that value for the lifetime of the app.<br />
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/// If the DPI changes, the app will not adjust to the new DPI value.<br />
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/// It will be automatically scaled up or down by the system when the DPI changes from the system value.</summary>
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Process_System_DPI_Aware = 1,
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/// <summary>Per monitor DPI aware.<br />
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/// This app checks for the DPI when it is created and adjusts the scale factor whenever the DPI changes.<br />
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/// These applications are not automatically scaled by the system.</summary>
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Process_Per_Monitor_DPI_Aware = 2
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}
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}
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}
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