hello vijay,
i just have this info abt ur doubt i just want to help u out so i'm mailing u.
i also don't know abt these functions in detail.but i think its useful to u.
The getch() and wgetch() routines get a character from the terminal associated with the window stdscror window win, respectively. The mvgetch() and mvwgetch() routines move the cursor to the position specified in stdscr or win, respectively, then get a character.
If the window is not a pad and has been changed since the last call to wrefresh(), getch() calls wrefresh() to update the window before the next character is read.
The ungetch() routine places ch back onto the input queue to be returned by the next call to wgetch(). Note that there is, in effect, just one input queue for all windows.
for more info u just visit the site whr u can find details of all functions
http://www.mkssoftware.com/docs/cur_index.asp
http://www.mkssoftware.com/docs/cur_index.asp
urs truly
aparajita
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