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Size: 1604
Comment: For the second analog stick on my wired Xbox 360 controller I need to use 3 for X-axis and 4 for Y-axis. Tested only under GNU/Linux.
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Size: 1616
Comment: Hid green comments in comments.
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| Deletions are marked like this. | Additions are marked like this. |
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| The state is a value ranging from -32768 to 32767. <<Color2(col=green,text="Is this the RV or a Remark?")>> | The state is a value ranging from -32768 to 32767. /* <<Color2(col=green,text="Is this the RV or a Remark?")>> */ |
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| Some joysticks use axes 2 and 3 for extra buttons. <<Color2(col=green,text="Or 3 and 4?")>> | Some joysticks use axes 2 and 3 for extra buttons. /* <<Color2(col=green,text="Or 3 and 4?")>> */ |
DRAFT |
SDL_JoystickGetAxis
Use this function to get the current state of an axis control on a joystick.
Contents
Syntax
Sint16 SDL_JoystickGetAxis(SDL_Joystick* joystick,
int axis)
Function Parameters
joystick |
an SDL_Joystick structure containing joystick information ??? |
axis |
the axis to query; the axis indices start at index 0; see Remarks for details |
Return Value
Returns a 16-bit signed integer representing the current position of the axis or 0 on failure; call SDL_GetError() for more information.
The state is a value ranging from -32768 to 32767.
Code Examples
extern SDL_Joystick* joy1;
Sint16 x_move, y_move;
x_move = SDL_JoystickGetAxis(joy1, 0);
y_move = SDL_JoystickGetAxis(joy1, 1);
Remarks
On most modern joysticks the X axis is usually represented by axis 0 and the Y axis by axis 1. The value returned by SDL_JoystickGetAxis() is a signed integer (-32768 to 32767) representing the current position of the axis. It may be necessary to impose certain tolerances on these values to account for jitter.
Some joysticks use axes 2 and 3 for extra buttons.
