The inverse of SDL_GetModState, SDL_SetModState allows you to impose modifier key states on your application.
Simply pass your desired modifier states into modstate. This value my be a logical OR'd combination of the following:
typedef enum {
+ KMOD_NONE = 0x0000,
+ KMOD_LSHIFT= 0x0001,
+ KMOD_RSHIFT= 0x0002,
+ KMOD_LCTRL = 0x0040,
+ KMOD_RCTRL = 0x0080,
+ KMOD_LALT = 0x0100,
+ KMOD_RALT = 0x0200,
+ KMOD_LMETA = 0x0400,
+ KMOD_RMETA = 0x0800,
+ KMOD_NUM = 0x1000,
+ KMOD_CAPS = 0x2000,
+ KMOD_MODE = 0x4000,
+} SDLMod;