USB Mouse (relative) example for mbed NXP LPC11U24 beta
HID_devices/USBAbsMouse.h
- Committer:
- chris
- Date:
- 2011-11-09
- Revision:
- 1:e089be2a6aa1
- Parent:
- 0:163560051396
File content as of revision 1:e089be2a6aa1:
/* USBAbsMouse.h */ /* USB device example: Mouse with absolute positioning */ /* Copyright (c) 2011 ARM Limited. All rights reserved. */ #ifndef _ABSOLUTE_MOUSE_ #define _ABSOLUTE_MOUSE_ #include "GenericMouse.h" #include "USBHID.h" /** USB device: an absolute mouse * * Warning: you can only instantiate one instance of a USB device: USBMouse, USBKeyboard, USBAbsMouse, USBMouseKeyboard, or USBAbsMouseKeyboard. * * Example: * @code * * #include "mbed.h" * #include "USBAbsMouse.h" * * USBAbsMouse mouse; * * #define STEP (20) * * int main(void) * { * int32_t a = X_MIN; * int32_t dir = STEP; * * while (1) * { * mouse.move(a, a); * * if (((a+dir) > X_MAX) || ((a+dir) < X_MIN)) * { * // Change direction * dir = -dir; * } * * a += dir; * } * } * * @endcode */ class USBAbsMouse: public GenericMouse, public USBHID { public: /** * Constructor for a USBAbsMouse (an absolute mouse) */ USBAbsMouse(){}; /** * Write a state of the mouse * * @param x x absolute position * @param y y absolute position * @param buttons buttons state (first bit represents MOUSE_LEFT, second bit MOUSE_RIGHT and third bit MOUSE_MIDDLE) * @param z wheel state (>0 to scroll down, <0 to scroll up) * @return true if there is no error, false otherwise */ virtual bool update(int16_t x, int16_t y, uint8_t buttons, int8_t z); virtual uint8_t * ReportDesc(); }; #endif