Window state change event data (event.window.*)
Defined in SDL_events.h
typedef struct SDL_WindowEvent
{/**< SDL_WINDOWEVENT */
Uint32 type; /**< In milliseconds, populated using SDL_GetTicks() */
Uint32 timestamp; /**< The associated window */
Uint32 windowID; /**< SDL_WindowEventID */
Uint8 event;
Uint8 padding1;
Uint8 padding2;
Uint8 padding3;/**< event dependent data */
Sint32 data1; /**< event dependent data */
Sint32 data2; } SDL_WindowEvent;