On most platforms, start text input on newly-created windows.

SDL2 defaulted to text input _on_ for desktop platforms, SDL3 does not for any
platform.

Fixes #183.

src/sdl2_compat.c

@@ -6988,6 +6988,11 @@ SDL_CreateWindow(const char *title, int x, int y, int w, int h, Uint32 flags)
             SDL_SetWindowData(window, PROP_WINDOW_PARENT_POINTER, parent);
         }
     }
+
+    #if !defined(SDL_PLATFORM_IOS) && !defined(SDL_PLATFORM_ANDROID)  // (and maybe others...?)
+    SDL3_StartTextInput(window);
+    #endif
+
     return window;
 }
 

src/sdl3_syms.h

@@ -670,6 +670,7 @@ SDL3_SYM_PASSTHROUGH_RETCODE(bool,ShowSimpleMessageBox,(Uint32 a, const char *b,
 SDL3_SYM(bool,ShowWindow,(SDL_Window *a),(a),return)
 SDL3_SYM(void,SignalCondition,(SDL_Condition *a),(a),return)
 SDL3_SYM(void,SignalSemaphore,(SDL_Semaphore *a),(a),return)
+SDL3_SYM(bool,StartTextInput,(SDL_Window *a),(a),return)
 SDL3_SYM(bool,StartTextInputWithProperties,(SDL_Window *a, SDL_PropertiesID b),(a,b),return)
 SDL3_SYM(bool,StopTextInput,(SDL_Window *a),(a),return)
 SDL3_SYM(bool,SurfaceHasColorKey,(SDL_Surface *a),(a),return)