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delch, wdelch, mvdelch, mvwdelch - ncurses ???????ɥ??Υ????????β???ʸ????????????

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#include <ncurses.h>

int delch(void);
int wdelch(WINDOW *win);
int mvdelch(int y, int x);
int mvwdelch(WINDOW *win, int y, int x);

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???????Υ롼?????ϡ??????????β???ʸ???????????ޤ??? Ʊ???ԤΥ????????α??ˤ???ʸ???Ϥ??٤? 1 ???֤??????˰?ư???? ?ԤκǸ???ʸ???ϥ֥??󥯤??????????ޤ??? ?????????ΰ??֤??Ѳ????ޤ??? (???ꤵ?줿???硢y, x ?˰?ư???????Ǥ?)?? (?????ϡ??ϡ??ɥ???????ʸ????????ǽ?λ??Ѥ???̣???ޤ???)??

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?롼?????Ϥ??٤ơ????????Ԥ??????????? ERR ???֤??ޤ??? ???????????˴?λ?????????ϡ?ERR ?ʳ????????ͤ??֤??ޤ???

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delch, mvdelch ?????? mvwdelch ???ޥ????Ǥ?????ǽ???????뤳?Ȥ????դ??Ƥ?????????

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ncurses(3)