Add `[Flags]` attribute to mask/flags enums

SDL3-CS/SDL3/ClangSharp/SDL_init.g.cs

@@ -23,10 +23,12 @@
   3. This notice may not be removed or altered from any source distribution.
 */
 
+using System;
 using System.Runtime.InteropServices;
 
 namespace SDL
 {
+    [Flags]
     public enum SDL_InitFlags
     {
         SDL_INIT_TIMER = 0x00000001,

SDL3-CS/SDL3/ClangSharp/SDL_keycode.g.cs

@@ -23,6 +23,7 @@
   3. This notice may not be removed or altered from any source distribution.
 */
 
+using System;
 using static SDL.SDL_Scancode;
 
 namespace SDL
@@ -275,6 +276,7 @@ namespace SDL
         SDLK_ENDCALL = (SDL_SCANCODE_ENDCALL | (1 << 30)),
     }
 
+    [Flags]
     public enum SDL_Keymod
     {
         SDL_KMOD_NONE = 0x0000,

SDL3-CS/SDL3/ClangSharp/SDL_messagebox.g.cs

@@ -23,11 +23,13 @@
   3. This notice may not be removed or altered from any source distribution.
 */
 
+using System;
 using System.Runtime.CompilerServices;
 using System.Runtime.InteropServices;
 
 namespace SDL
 {
+    [Flags]
     public enum SDL_MessageBoxFlags
     {
         SDL_MESSAGEBOX_ERROR = 0x00000010,
@@ -37,6 +39,7 @@ namespace SDL
         SDL_MESSAGEBOX_BUTTONS_RIGHT_TO_LEFT = 0x00000100,
     }
 
+    [Flags]
     public enum SDL_MessageBoxButtonFlags
     {
         SDL_MESSAGEBOX_BUTTON_RETURNKEY_DEFAULT = 0x00000001,

SDL3-CS/SDL3/ClangSharp/SDL_render.g.cs

@@ -29,6 +29,7 @@ using System.Runtime.InteropServices;
 
 namespace SDL
 {
+    [Flags]
     public enum SDL_RendererFlags
     {
         SDL_RENDERER_PRESENTVSYNC = 0x00000004,

SDL3-CS/SDL3/SDL_init.rsp

@@ -0,0 +1,5 @@
+# Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+# See the LICENCE file in the repository root for full licence text.
+
+--with-attribute
+SDL_InitFlags=Flags

SDL3-CS/SDL3/SDL_keycode.rsp

@@ -0,0 +1,5 @@
+# Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+# See the LICENCE file in the repository root for full licence text.
+
+--with-attribute
+SDL_Keymod=Flags

SDL3-CS/SDL3/SDL_messagebox.rsp

@@ -0,0 +1,6 @@
+# Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+# See the LICENCE file in the repository root for full licence text.
+
+--with-attribute
+SDL_MessageBoxFlags=Flags
+SDL_MessageBoxButtonFlags=Flags

SDL3-CS/SDL3/SDL_render.rsp

@@ -0,0 +1,5 @@
+# Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+# See the LICENCE file in the repository root for full licence text.
+
+--with-attribute
+SDL_RendererFlags=Flags