SDL_Init(SDL_INIT_VIDEO); -Interally, SDL stores all the events waiting to be handled in an event queue. Using functions like — Enable/disable joystick event polling
| SDL_PumpEvents | Pumps the event loop, gathering events from the input devices |
| SDL_PeepEvents | Checks the event queue for messages and optionally returns them |
| SDL_PollEvent | Polls for currently pending events |
| SDL_WaitEvent | Waits indefinitely for the next available event |
| SDL_PushEvent | Pushes an event onto the event queue |
| SDL_SetEventFilter | Sets up a filter to process all events |
| SDL_EventState | Allows you to set the state of processing certain events |
| SDL_GetKeyState | Get a snapshot of the current keyboard state |
| SDL_GetModState | Get the state of modifier keys |
| SDL_SetModState | Set the state of modifier keys |
| SDL_GetKeyName | Get the name of an SDL virtual keysym |
| SDL_EnableUNICODE | Enable UNICODE translation |
| SDL_EnableKeyRepeat | Set keyboard repeat rate |
| SDL_GetMouseState | Retrieve the current state of the mouse |
| SDL_GetRelativeMouseState | Retrieve the current state of the mouse |
| SDL_GetAppState | Get the state of the application |
| SDL_JoystickEventState | Enable/disable joystick event polling |
SDL_InitSubSystem. ). SDL_Init must be called before any other SDL function. It automatically initializes the Event Handling, File I/O and Threading subsystems and it takes a parameter specifying which other subsystems to initialize. So, to initialize the default subsystems and the Video subsystems you would call: diff --git a/docs/html/guidecdromexamples.html b/docs/html/guidecdromexamples.html index 917a1a3c0..8083adb40 100644 --- a/docs/html/guidecdromexamples.html +++ b/docs/html/guidecdromexamples.html @@ -201,7 +201,7 @@ CLASS="PROGRAMLISTING" // Play first and second track and 10 seconds of third track: if ( CD_INDRIVE(SDL_CDStatus(cdrom)) ) - SDL_CDPlayTracks(cdrom, 0, 0, 2, 10);
Advanced Joystick FunctionsThat takes care of the controls that you can count on being on every joystick under the sun, but there are a few extra things that SDL can support. Joyballs are next on our list, they are alot like axis we a few minor differences. Joyballs store relative changes unlike the the absolute postion stored in a axis event. Also one trackball event contains both the change in x and they change in y. Our case for it is as follows:
That takes care of the controls that you can count on being on every joystick under the sun, but there are a few extra things that SDL can support. Joyballs are next on our list, they are alot like axis with a few minor differences. Joyballs store relative changes unlike the the absolute postion stored in a axis event. Also one trackball event contains both the change in x and they change in y. Our case for it is as follows:SDL_WasInit — Check which subsystems are initialized#include "SDL.h"#include "SDL/SDL.h"