From 552a8b5ead12fb3ba70a46809b1f19c29d9b3e38 Mon Sep 17 00:00:00 2001
From: Justin Skiles <justin.d.skiles@gmail.com>
Date: Mon, 2 Sep 2013 15:18:11 -0400
Subject: [PATCH] Adding overload for SDL_LockTexture to allow IntPtr.Zero in
 the "rect" parameter. SDL documentation states that passing NULL for this
 value will lock the entire texture."

---
 src/SDL2.cs | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/src/SDL2.cs b/src/SDL2.cs
index f43965b..2bf6c35 100644
--- a/src/SDL2.cs
+++ b/src/SDL2.cs
@@ -1658,6 +1658,23 @@ namespace SDL2
 			out byte b
 		);
 		
+		/* texture refers to an SDL_Texture*, pixels to a void* */
+		/// <summary>
+		/// Use this function to lock a portion of the texture for write-only pixel access. 
+		/// </summary>
+		/// <param name="texture"></param>
+		/// <param name="rect"></param>
+		/// <param name="pixels"></param>
+		/// <param name="pitch"></param>
+		/// <returns></returns>
+		[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
+		public static extern int SDL_LockTexture(
+			IntPtr texture,
+			ref SDL_Rect rect,
+			out IntPtr pixels,
+			out int pitch
+		);
+
 		/* texture refers to an SDL_Texture*, pixels to a void* */
 		[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
 		public static extern int SDL_LockTexture(