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Clarify multi-touch functionality for _POINTER.

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Themaister 2012-12-27 23:16:21 +01:00
parent 4651dd935a
commit 2ceb46cd02
1 changed files with 5 additions and 0 deletions
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5
libretro.h
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@ -65,6 +65,11 @@ extern "C" {
// PRESSED returns 1 or 0.
// If using a mouse, PRESSED will usually correspond to the left mouse button.
// PRESSED will only return 1 if the pointer is inside the game screen.
//
// For multi-touch, the index variable can be used to successively query more presses.
// If index = 0 returns true for _PRESSED, coordinates can be extracted
// with _X, _Y for index = 0. One can then query _PRESSED, _X, _Y with index = 1, and so on.
// Eventually _PRESSED will return false for an index. No further presses are registered at this point.
#define RETRO_DEVICE_POINTER 6
// These device types are specializations of the base types above.