From 4c85c898ce7b338bcd126a0225ce990c2b19d3c4 Mon Sep 17 00:00:00 2001
From: dahall <dahall@byu.net>
Date: Fri, 25 Dec 2020 20:40:00 -0700
Subject: [PATCH] Added constructor for MSG struct

---
 PInvoke/Shared/WinUser/MSG.cs | 25 ++++++++++++++++++++++++-
 1 file changed, 24 insertions(+), 1 deletion(-)

diff --git a/PInvoke/Shared/WinUser/MSG.cs b/PInvoke/Shared/WinUser/MSG.cs
index 736c3de7..8c9ff483 100644
--- a/PInvoke/Shared/WinUser/MSG.cs
+++ b/PInvoke/Shared/WinUser/MSG.cs
@@ -4,7 +4,9 @@ using System.Runtime.InteropServices;
 namespace Vanara.PInvoke
 {
 	/// <summary>Contains message information from a thread's message queue.</summary>
-	[PInvokeData("winuser.h")]
+	// https://docs.microsoft.com/en-us/windows/win32/api/winuser/ns-winuser-msg typedef struct tagMSG { HWND hwnd; UINT message; WPARAM
+	// wParam; LPARAM lParam; DWORD time; POINT pt; DWORD lPrivate; } MSG, *PMSG, *NPMSG, *LPMSG;
+	[PInvokeData("winuser.h", MSDNShortId = "NS:winuser.tagMSG")]
 	[StructLayout(LayoutKind.Sequential)]
 	public struct MSG
 	{
@@ -30,5 +32,26 @@ namespace Vanara.PInvoke
 
 		/// <summary>The vertical cursor position, in screen coordinates, when the message was posted.</summary>
 		public int pt_y;
+
+		/// <summary>Initializes a new instance of the <see cref="MSG"/> struct.</summary>
+		/// <param name="hwnd">
+		/// A handle to the window whose window procedure receives the message. This member is NULL when the message is a thread message.
+		/// </param>
+		/// <param name="msg">The message identifier. Applications can only use the low word; the high word is reserved by the system.</param>
+		/// <param name="wParam">Additional information about the message. The exact meaning depends on the value of the message member.</param>
+		/// <param name="lParam">Additional information about the message. The exact meaning depends on the value of the message member.</param>
+		/// <param name="pt_x">The horizontal cursor position, in screen coordinates, when the message was posted.</param>
+		/// <param name="pt_y">The vertical cursor position, in screen coordinates, when the message was posted.</param>
+		/// <param name="time">The time at which the message was posted.</param>
+		public MSG(HWND hwnd, uint msg, IntPtr wParam, IntPtr lParam, int pt_x = default, int pt_y = default, uint time = default)
+		{
+			this.hwnd = hwnd;
+			this.message = msg;
+			this.wParam = wParam;
+			this.lParam = lParam;
+			this.time = time;
+			this.pt_x = pt_x;
+			this.pt_y = pt_y;
+		}
 	}
 }
\ No newline at end of file