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Size: 871
Comment: create page, add content (Rev 5540)
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← Revision 7 as of 2016-04-15 22:05:52 ⇥
Size: 892
Comment: Removed SDL_JoystickOpen from Related Functions, see SGFunctions.
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| Deletions are marked like this. | Additions are marked like this. |
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| ||'''joystick'''||a pointer to a structure containing joystick information ???|| | ||'''joystick'''||an SDL_Joystick structure containing joystick information|| |
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| Returns ^the number of trackballs^ on success, or a negative error code on failure; call [[SDL_GetError]]() for more information. | Returns the number of trackballs on success or a negative error code on failure; call [[SDL_GetError]]() for more information. |
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| .[[SDL_JoystickGetBall]] |
DRAFT |
SDL_JoystickNumBalls
Use this function to get the number of trackballs on a joystick.
Contents
Syntax
int SDL_JoystickNumBalls(SDL_Joystick* joystick)
Function Parameters
joystick |
an SDL_Joystick structure containing joystick information |
Return Value
Returns the number of trackballs on success or a negative error code on failure; call SDL_GetError() for more information.
Code Examples
You can add your code example here
Remarks
Joystick trackballs have only relative motion events associated with them and their state cannot be polled.
