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Upgrade MonitorInfo class

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Jack251970 2025-07-23 13:27:36 +08:00
parent 55589f872a
commit e63941275e
3 changed files with 81 additions and 18 deletions
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91
Flow.Launcher.Infrastructure/MonitorInfo.cs
View file

@ -1,5 +1,5 @@
using System.Collections.Generic;
using System;
using System;
using System.Collections.Generic;
using System.Runtime.InteropServices;
using System.Windows;
using Windows.Win32;
@ -11,9 +11,12 @@ namespace Flow.Launcher.Infrastructure;
/// <summary>
/// Contains full information about a display monitor.
/// Codes are edited from: <see href="https://github.com/Jack251970/DesktopWidgets3">.
/// Inspired from: https://github.com/Jack251970/DesktopWidgets3.
/// </summary>
internal class MonitorInfo
/// <remarks>
/// Use this class to replace the System.Windows.Forms.Screen class which can cause possible System.PlatformNotSupportedException.
/// </remarks>
public class MonitorInfo
{
/// <summary>
/// Gets the display monitors (including invisible pseudo-monitors associated with the mirroring drivers).
@ -23,14 +26,14 @@ internal class MonitorInfo
{
var monitorCount = PInvoke.GetSystemMetrics(SYSTEM_METRICS_INDEX.SM_CMONITORS);
var list = new List<MonitorInfo>(monitorCount);
var callback = new MONITORENUMPROC((HMONITOR monitor, HDC deviceContext, RECT* rect, LPARAM data) =>
var callback = new MONITORENUMPROC((monitor, deviceContext, rect, data) =>
{
list.Add(new MonitorInfo(monitor, rect));
return true;
});
var dwData = new LPARAM();
var hdc = new HDC();
bool ok = PInvoke.EnumDisplayMonitors(hdc, (RECT?)null, callback, dwData);
bool ok = PInvoke.EnumDisplayMonitors(hdc, null, callback, dwData);
if (!ok)
{
Marshal.ThrowExceptionForHR(Marshal.GetLastWin32Error());
@ -43,11 +46,11 @@ internal class MonitorInfo
/// </summary>
/// <param name="hwnd">Window handle</param>
/// <returns>The display monitor that is nearest to a given window, or null if no monitor is found.</returns>
public static unsafe MonitorInfo GetNearestDisplayMonitor(HWND hwnd)
public static unsafe MonitorInfo GetNearestDisplayMonitor(nint hwnd)
{
var nearestMonitor = PInvoke.MonitorFromWindow(hwnd, MONITOR_FROM_FLAGS.MONITOR_DEFAULTTONEAREST);
var nearestMonitor = PInvoke.MonitorFromWindow(new(hwnd), MONITOR_FROM_FLAGS.MONITOR_DEFAULTTONEAREST);
MonitorInfo nearestMonitorInfo = null;
var callback = new MONITORENUMPROC((HMONITOR monitor, HDC deviceContext, RECT* rect, LPARAM data) =>
var callback = new MONITORENUMPROC((monitor, deviceContext, rect, data) =>
{
if (monitor == nearestMonitor)
{
@ -58,7 +61,7 @@ internal class MonitorInfo
});
var dwData = new LPARAM();
var hdc = new HDC();
bool ok = PInvoke.EnumDisplayMonitors(hdc, (RECT?)null, callback, dwData);
bool ok = PInvoke.EnumDisplayMonitors(hdc, null, callback, dwData);
if (!ok)
{
Marshal.ThrowExceptionForHR(Marshal.GetLastWin32Error());
@ -66,17 +69,75 @@ internal class MonitorInfo
return nearestMonitorInfo;
}
/// <summary>
/// Gets the primary display monitor (the one that contains the taskbar).
/// </summary>
/// <returns>The primary display monitor, or null if no monitor is found.</returns>
public static unsafe MonitorInfo GetPrimaryDisplayMonitor()
{
var primaryMonitor = PInvoke.MonitorFromWindow(new HWND(IntPtr.Zero), MONITOR_FROM_FLAGS.MONITOR_DEFAULTTOPRIMARY);
MonitorInfo primaryMonitorInfo = null;
var callback = new MONITORENUMPROC((monitor, deviceContext, rect, data) =>
{
if (monitor == primaryMonitor)
{
primaryMonitorInfo = new MonitorInfo(monitor, rect);
return false;
}
return true;
});
var dwData = new LPARAM();
var hdc = new HDC();
bool ok = PInvoke.EnumDisplayMonitors(hdc, null, callback, dwData);
if (!ok)
{
Marshal.ThrowExceptionForHR(Marshal.GetLastWin32Error());
}
return primaryMonitorInfo;
}
/// <summary>
/// Gets the display monitor that contains the cursor.
/// </summary>
/// <returns>The display monitor that contains the cursor, or null if no monitor is found.</returns>
public static unsafe MonitorInfo GetCursorDisplayMonitor()
{
if (!PInvoke.GetCursorPos(out var pt))
{
Marshal.ThrowExceptionForHR(Marshal.GetLastWin32Error());
}
var cursorMonitor = PInvoke.MonitorFromPoint(pt, MONITOR_FROM_FLAGS.MONITOR_DEFAULTTONEAREST);
MonitorInfo cursorMonitorInfo = null;
var callback = new MONITORENUMPROC((monitor, deviceContext, rect, data) =>
{
if (monitor == cursorMonitor)
{
cursorMonitorInfo = new MonitorInfo(monitor, rect);
return false;
}
return true;
});
var dwData = new LPARAM();
var hdc = new HDC();
bool ok = PInvoke.EnumDisplayMonitors(hdc, null, callback, dwData);
if (!ok)
{
Marshal.ThrowExceptionForHR(Marshal.GetLastWin32Error());
}
return cursorMonitorInfo;
}
private readonly HMONITOR _monitor;
internal unsafe MonitorInfo(HMONITOR monitor, RECT* rect)
{
RectMonitor =
Bounds =
new Rect(new Point(rect->left, rect->top),
new Point(rect->right, rect->bottom));
_monitor = monitor;
var info = new MONITORINFOEXW() { monitorInfo = new MONITORINFO() { cbSize = (uint)sizeof(MONITORINFOEXW) } };
GetMonitorInfo(monitor, ref info);
RectWork =
WorkingArea =
new Rect(new Point(info.monitorInfo.rcWork.left, info.monitorInfo.rcWork.top),
new Point(info.monitorInfo.rcWork.right, info.monitorInfo.rcWork.bottom));
Name = new string(info.szDevice.AsSpan()).Replace("\0", "").Trim();
@ -93,7 +154,7 @@ internal class MonitorInfo
/// <remarks>
/// <note>If the monitor is not the primary display monitor, some of the rectangle's coordinates may be negative values.</note>
/// </remarks>
public Rect RectMonitor { get; }
public Rect Bounds { get; }
/// <summary>
/// Gets the work area rectangle of the display monitor, expressed in virtual-screen coordinates.
@ -101,7 +162,7 @@ internal class MonitorInfo
/// <remarks>
/// <note>If the monitor is not the primary display monitor, some of the rectangle's coordinates may be negative values.</note>
/// </remarks>
public Rect RectWork { get; }
public Rect WorkingArea { get; }
/// <summary>
/// Gets if the monitor is the the primary display monitor.
@ -109,7 +170,7 @@ internal class MonitorInfo
public bool IsPrimary => _monitor == PInvoke.MonitorFromWindow(new(IntPtr.Zero), MONITOR_FROM_FLAGS.MONITOR_DEFAULTTOPRIMARY);
/// <inheritdoc />
public override string ToString() => $"{Name} {RectMonitor.Width}x{RectMonitor.Height}";
public override string ToString() => $"{Name} {Bounds.Width}x{Bounds.Height}";
private static unsafe bool GetMonitorInfo(HMONITOR hMonitor, ref MONITORINFOEXW lpmi)
{

4
Flow.Launcher.Infrastructure/NativeMethods.txt
View file

@ -39,6 +39,8 @@ EnumDisplayMonitors
MonitorFromWindow
GetMonitorInfo
MONITORINFOEXW
GetCursorPos
MonitorFromPoint
WM_ENTERSIZEMOVE
WM_EXITSIZEMOVE
@ -89,4 +91,4 @@ WM_GETTEXT
OpenProcess
QueryFullProcessImageName
EVENT_OBJECT_HIDE
EVENT_SYSTEM_DIALOGEND
EVENT_SYSTEM_DIALOGEND

4
Flow.Launcher.Infrastructure/Win32Helper.cs
View file

@ -293,8 +293,8 @@ namespace Flow.Launcher.Infrastructure
}
var monitorInfo = MonitorInfo.GetNearestDisplayMonitor(hWnd);
return (appBounds.bottom - appBounds.top) == monitorInfo.RectMonitor.Height &&
(appBounds.right - appBounds.left) == monitorInfo.RectMonitor.Width;
return (appBounds.bottom - appBounds.top) == monitorInfo.Bounds.Height &&
(appBounds.right - appBounds.left) == monitorInfo.Bounds.Width;
}
#endregion