From fb82df5ff8665e407f2fcf42a3c6a825acf2755b Mon Sep 17 00:00:00 2001
From: Chris Kaczor <chris@kaczorzoo.net>
Date: Fri, 23 Oct 2015 20:20:25 -0400
Subject: [PATCH] More Win32 support

---
 Constants.cs | 29 ++++++++++++++++++++++++++++-
 Functions.cs | 24 ++++++++++++++++++++++--
 2 files changed, 50 insertions(+), 3 deletions(-)

diff --git a/Constants.cs b/Constants.cs
index 3b9197a..f5066c1 100644
--- a/Constants.cs
+++ b/Constants.cs
@@ -138,13 +138,40 @@ namespace Common.Native
         }
 
         [Flags]
-        public enum ExtendedWindowStyles
+        public enum WindowStyles : uint
         {
+            Overlapped = 0x00000000,
+            Caption = 0x00C00000,
+            SystemMenu = 0x00080000,
+            ThickFrame = 0x00040000,
+            MinimizeBox = 0x00020000,
+            MaximizeBox = 0x00010000,
+            Visible = 0x10000000,
+            Child = 0x40000000,
+            Popup = 0x80000000,
+            OverlappedWindow = Overlapped | Caption | SystemMenu | ThickFrame | MinimizeBox | MaximizeBox
+        }
+
+        [Flags]
+        public enum ExtendedWindowStyles : long
+        {
+            DialogModalFrame = 0x00000001,
             ToolWindow = 0x00000080,
+            AppWindow = 0x00040000,
+            WindowEdge = 0x00000100,
+            ClientEdge = 0x00000200,
+            OverlappedWindow = WindowEdge | ClientEdge
+        }
+
+        public enum GetWindowFields
+        {
+            Owner = 4
         }
 
         public enum GetWindowLongFields
         {
+            Parent = -8,
+            Style = -16,
             ExStyle = -20,
         }
 
diff --git a/Functions.cs b/Functions.cs
index e2e8820..d6fb352 100644
--- a/Functions.cs
+++ b/Functions.cs
@@ -139,6 +139,9 @@ namespace Common.Native
             [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
             public static extern int GetWindowText(IntPtr hWnd, StringBuilder lpString, int nMaxCount);
 
+            [DllImport("user32.dll", SetLastError = true)]
+            public static extern uint GetWindowThreadProcessId(IntPtr hWnd, out uint lpdwProcessId);
+
             [DllImport("user32.dll", CharSet = CharSet.Auto)]
             public static extern IntPtr SendMessage(IntPtr hWnd, uint msg, IntPtr wParam, IntPtr lParam);
 
@@ -148,8 +151,11 @@ namespace Common.Native
             [DllImport("user32.dll", ExactSpelling = true, CharSet = CharSet.Auto)]
             public static extern IntPtr GetParent(IntPtr hWnd);
 
+            [DllImport("user32", CharSet = CharSet.Auto, SetLastError = true, ExactSpelling = true)]
+            public static extern IntPtr GetWindow(IntPtr hwnd, int wFlag);
+
             [DllImport("user32.dll")]
-            public static extern IntPtr GetWindowLong(IntPtr hWnd, int nIndex);
+            public static extern long GetWindowLong(IntPtr hWnd, Constants.GetWindowLongFields nIndex);
 
             [DllImport("user32.dll")]
             public static extern int SetWindowLong(IntPtr hWnd, int nIndex, int dwNewLong);
@@ -163,6 +169,10 @@ namespace Common.Native
             [DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)]
             public static extern uint RegisterWindowMessage(string lpString);
 
+            [DllImport("user32.dll")]
+            [return: MarshalAs(UnmanagedType.Bool)]
+            public static extern bool IsWindowVisible(IntPtr hWnd);
+
             public static IntPtr SetWindowLongPtrSmart(IntPtr hWnd, int nIndex, IntPtr dwNewLong)
             {
                 if (IntPtr.Size == 8)
@@ -181,9 +191,19 @@ namespace Common.Native
             {
                 if (IntPtr.Size > 4)
                     return GetClassLongPtr64(hWnd, nIndex);
-                
+
                 return new IntPtr(GetClassLongPtr32(hWnd, nIndex));
             }
+
+            public static bool HasStyle(long windowStyle, Constants.WindowStyles checkStyle)
+            {
+                return ((windowStyle & (long) checkStyle) == (long) checkStyle);
+            }
+
+            public static bool HasExtendedStyle(long windowStyle, Constants.ExtendedWindowStyles checkStyle)
+            {
+                return ((windowStyle & (long) checkStyle) == (long) checkStyle);
+            }
         }
 
         public static class Kernel32