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60 lines
1.4 KiB
C
60 lines
1.4 KiB
C
/** \file input_common.h
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Header file for the low level input library
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*/
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#ifndef INPUT_COMMON_H
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#define INPUT_COMMON_H
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#include <wchar.h>
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/**
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Use unencoded private-use keycodes for internal characters
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*/
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#define INPUT_COMMON_RESERVED 0xe000
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enum
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{
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/**
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R_NULL is sometimes returned by the input when a character was
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requested but none could be delivered, or when an exception
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happened.
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*/
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R_NULL = INPUT_COMMON_RESERVED,
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R_EOF
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}
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;
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/**
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Init the library
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*/
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void input_common_init(int (*ih)());
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/* Sets a callback to be invoked every time a byte is read */
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void input_common_set_poll_callback(void (*handler)(void));
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/**
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Free memory used by the library
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*/
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void input_common_destroy();
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/**
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Function used by input_readch to read bytes from stdin until enough
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bytes have been read to convert them to a wchar_t. Conversion is
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done using mbrtowc. If a character has previously been read and
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then 'unread' using \c input_common_unreadch, that character is
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returned. If timed is true, readch2 will wait at most
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WAIT_ON_ESCAPE milliseconds for a character to be available for
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reading before returning with the value WEOF.
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*/
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wchar_t input_common_readch(int timed);
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/**
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Push a character or a readline function onto the stack of unread
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characters that input_readch will return before actually reading from fd
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0.
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*/
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void input_common_unreadch(wint_t ch);
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#endif
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