tslib.h
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上传日期:2022-06-22
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文件大小:2k
- #ifndef _TSLIB_H_
- #define _TSLIB_H_
- /*
- * tslib/src/tslib.h
- *
- * Copyright (C) 2001 Russell King.
- *
- * This file is placed under the LGPL.
- *
- * $Id: tslib.h,v 1.4 2005/02/26 01:47:23 kergoth Exp $
- *
- * Touch screen library interface definitions.
- */
- #ifdef __cplusplus
- extern "C" {
- #endif /* __cplusplus */
- #include <stdarg.h>
- #include <sys/time.h>
- #ifdef WIN32
- #define TSIMPORT __declspec(dllimport)
- #define TSEXPORT __declspec(dllexport)
- #define TSLOCAL
- #else
- #define TSIMPORT
- #ifdef GCC_HASCLASSVISIBILITY
- #define TSEXPORT __attribute__ ((visibility("default")))
- #define TSLOCAL __attribute__ ((visibility("hidden")))
- #else
- #define TSEXPORT
- #define TSLOCAL
- #endif
- #endif
- #ifdef TSLIB_INTERNAL
- #define TSAPI TSEXPORT
- #else
- #define TSAPI TSIMPORT
- #endif // TSLIB_INTERNAL
- struct tsdev;
- struct ts_sample {
- int x;
- int y;
- unsigned int pressure;
- struct timeval tv;
- };
- /*
- * Close the touchscreen device, free all resources.
- */
- TSAPI int ts_close(struct tsdev *);
- /*
- * Configure the touchscreen device.
- */
- TSAPI int ts_config(struct tsdev *);
- /*
- * Change this hook to point to your custom error handling function.
- */
- extern TSAPI int (*ts_error_fn)(const char *fmt, va_list ap);
- /*
- * Returns the file descriptor in use for the touchscreen device.
- */
- TSAPI int ts_fd(struct tsdev *);
- /*
- * Load a filter/scaling module
- */
- TSAPI int ts_load_module(struct tsdev *, const char *mod, const char *params);
- /*
- * Open the touchscreen device.
- */
- TSAPI struct tsdev *ts_open(const char *dev_name, int nonblock);
- /*
- * Return a scaled touchscreen sample.
- */
- TSAPI int ts_read(struct tsdev *, struct ts_sample *, int);
- /*
- * Returns a raw, unscaled sample from the touchscreen.
- */
- TSAPI int ts_read_raw(struct tsdev *, struct ts_sample *, int);
- #ifdef __cplusplus
- }
- #endif /* __cplusplus */
- #endif /* _TSLIB_H_ */