Issues #130 Fixed 1024 character limit for GetWindowText function

Author: AlexanderPro

SmartSystemMenu/Native/User32.cs

@@ -32,6 +32,9 @@ static class User32
         [DllImport("user32.dll", CharSet = CharSet.Auto)]
         public static extern int GetWindowText(IntPtr handle, StringBuilder title, int size);
 
+        [DllImport("user32.dll", CharSet = CharSet.Auto)]
+        public static extern int GetWindowTextLength(IntPtr handle);
+
         [DllImport("user32.dll", CharSet = CharSet.Auto)]
         public static extern int GetClassName(IntPtr handle, StringBuilder className, int size);
 

SmartSystemMenu/Utils/WindowUtils.cs

@@ -307,13 +307,19 @@ public static void SetOpacity(IntPtr hWnd, byte opacity)
             SetLayeredWindowAttributes(hWnd, 0, opacity, LWA_ALPHA);
         }
 
-
         public static string GetWindowText(IntPtr hWnd)
         {
-            var builder = new StringBuilder(1024);
-            User32.GetWindowText(hWnd, builder, builder.Capacity);
-            var windowText = builder.ToString();
-            return windowText;
+            var length = GetWindowTextLength(hWnd);
+            if (length > 0)
+            {
+                var builder = new StringBuilder(length + 1);
+                User32.GetWindowText(hWnd, builder, builder.Capacity);
+                return builder.ToString();
+            }
+            else
+            {
+                return string.Empty;
+            }
         }
 
         public static string GetClassName(IntPtr hWnd)