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Internal screen detection

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Serge
2023-08-18 18:15:12 +02:00
parent 584755ea93
commit 190786a15a
2 changed files with 132 additions and 28 deletions
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74
app/Display/ScreenInterrogatory.cs
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@@ -1,4 +1,6 @@
using System.ComponentModel;
using GHelper.Helpers;
using NvAPIWrapper.Display;
using System.ComponentModel;
using System.Runtime.InteropServices;
namespace GHelper.Display
@@ -259,6 +261,49 @@ namespace GHelper.Display
#endregion
[Flags]
public enum DisplayDeviceStates : int
{
ATTACHED_TO_DESKTOP = 0x01,
PRIMARY_DEVICE = 0x04,
MIRRORING_DRIVER = 0x08,
VGA_COMPATIBLE = 0x10,
REMOVABLE = 0x20,
DISCONNECTED = 0x2000000,
REMOTE = 0x4000000,
MODESPRUNED = 0x8000000
}
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct DISPLAY_DEVICE
{
public int cb;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 32)]
public string DeviceName;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 128)]
public string DeviceString;
public DisplayDeviceStates StateFlags;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 128)]
public string DeviceID;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 128)]
public string DeviceKey;
}
[DllImport(nameof(User32), CharSet = CharSet.Unicode, SetLastError = true)]
public static extern bool EnumDisplayDevices(
string? lpDevice,
uint iDevNum,
ref DISPLAY_DEVICE lpDisplayDevice,
uint dwFlags);
private static DISPLAYCONFIG_TARGET_DEVICE_NAME DeviceName(LUID adapterId, uint targetId)
{
var deviceName = new DISPLAYCONFIG_TARGET_DEVICE_NAME
@@ -298,6 +343,33 @@ namespace GHelper.Display
}
public static IEnumerable<DISPLAY_DEVICE> GetDisplayDevices()
{
var displayAdapter = new DISPLAY_DEVICE();
displayAdapter.cb = Marshal.SizeOf<DISPLAY_DEVICE>();
var displayAdapterNumber = default(uint);
while (EnumDisplayDevices(null, displayAdapterNumber, ref displayAdapter, 1))
{
var displayMonitor = new DISPLAY_DEVICE();
displayMonitor.cb = Marshal.SizeOf<DISPLAY_DEVICE>();
var displayMonitorNumber = default(uint);
while (EnumDisplayDevices(displayAdapter.DeviceName, displayMonitorNumber, ref displayMonitor, 1))
{
var isAttached = (displayMonitor.StateFlags & DisplayDeviceStates.ATTACHED_TO_DESKTOP) == DisplayDeviceStates.ATTACHED_TO_DESKTOP;
var isMirroring = (displayMonitor.StateFlags & DisplayDeviceStates.MIRRORING_DRIVER) == DisplayDeviceStates.MIRRORING_DRIVER;
if (isAttached && !isMirroring) yield return displayMonitor;
displayMonitorNumber++;
}
displayAdapterNumber++;
}
}
}
}