mirror of
https://github.com/MaJerle/lwbtn.git
synced 2026-08-17 17:44:39 +08:00
86 lines
2.6 KiB
C
86 lines
2.6 KiB
C
#include <stdio.h>
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#include <string.h>
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#include "lwbtn/lwbtn.h"
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#include "windows.h"
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static LARGE_INTEGER freq, sys_start_time;
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static uint32_t get_tick(void);
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/* User defined settings */
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const int keys[] = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9'};
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/* List of buttons to process */
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static lwbtn_btn_t btns[] = {{.arg = (void*)&keys[0]}, {.arg = (void*)&keys[1]}, {.arg = (void*)&keys[2]},
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{.arg = (void*)&keys[3]}, {.arg = (void*)&keys[4]}, {.arg = (void*)&keys[5]},
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{.arg = (void*)&keys[6]}, {.arg = (void*)&keys[7]}, {.arg = (void*)&keys[8]},
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{.arg = (void*)&keys[9]}};
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/**
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* \brief Get input state callback
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* \param lw: LwBTN instance
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* \param btn: Button instance
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* \return `1` if button active, `0` otherwise
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*/
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uint8_t
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prv_btn_get_state(struct lwbtn* lw, struct lwbtn_btn* btn) {
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(void)lw;
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return GetAsyncKeyState(*(int*)btn->arg) < 0;
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}
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/**
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* \brief Button event
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*
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* \param lw: LwBTN instance
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* \param btn: Button instance
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* \param evt: Button event
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*/
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void
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prv_btn_event(struct lwbtn* lw, struct lwbtn_btn* btn, lwbtn_evt_t evt) {
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const char* s = "unknown";
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(void)lw;
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/* Get event string */
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s = ((evt == LWBTN_EVT_KEEPALIVE)
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? "KEEPALIVE"
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: ((evt == LWBTN_EVT_ONPRESS)
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? " ONPRESS"
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: ((evt == LWBTN_EVT_ONRELEASE) ? "ONRELEASE"
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: ((evt == LWBTN_EVT_ONCLICK) ? " ONCLICK" : " UNKNOWN"))));
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printf("[%7u] CH: %c, evt: %s, keep-alive cnt: %3u, click cnt: %3u\r\n", (unsigned)get_tick(), *(int*)btn->arg, s,
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(unsigned)btn->keepalive.cnt, (unsigned)btn->click.cnt);
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}
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int
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main(void) {
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printf("Application running\r\n");
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QueryPerformanceFrequency(&freq);
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QueryPerformanceCounter(&sys_start_time);
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/* Define buttons */
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lwbtn_init_ex(NULL, btns, sizeof(btns) / sizeof(btns[0]), prv_btn_get_state, prv_btn_event);
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while (1) {
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/* Process forever */
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lwbtn_process_ex(NULL, get_tick());
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/* Artificial sleep to offload win process */
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Sleep(5);
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}
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}
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/**
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* \brief Get current tick in ms from start of program
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* \return uint32_t: Tick in ms
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*/
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static uint32_t
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get_tick(void) {
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LONGLONG ret;
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LARGE_INTEGER now;
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QueryPerformanceFrequency(&freq);
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QueryPerformanceCounter(&now);
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ret = now.QuadPart - sys_start_time.QuadPart;
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return (uint32_t)((ret * 1000) / freq.QuadPart);
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}
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