Intravision/reactos
1
0
Fork 0
mirror of https://github.com/reactos/reactos.git synced 2024-12-28 01:55:19 +00:00
Code Issues Projects Releases Packages Wiki Activity

_getch() doesn't echo the chars it retrieves and operates in raw mode.

Browse source 
svn path=/trunk/; revision=17904
This commit is contained in:
Gé van Geldorp 2005-09-17 22:33:53 +00:00
parent f8852fda40
commit 670b82330c
1 changed files with 22 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

24
reactos/lib/crt/conio/getch.c
View file

@ -20,21 +20,41 @@
*/
int _getch(void)
{
DWORD NumberOfCharsRead = 0;
DWORD NumberOfCharsRead = 0;
char c;
HANDLE ConsoleHandle;
BOOL RestoreMode;
DWORD ConsoleMode;
if (char_avail) {
c = ungot_char;
char_avail = 0;
} else {
/*
* _getch() is documented to NOT echo characters. Testing shows it
* doesn't wait for a CR either. So we need to switch off
* ENABLE_ECHO_INPUT and ENABLE_LINE_INPUT if they're currently
* switched on.
*/
ConsoleHandle = (HANDLE) _get_osfhandle(stdin->_file);
RestoreMode = GetConsoleMode(ConsoleHandle, &ConsoleMode) &&
(0 != (ConsoleMode &
(ENABLE_ECHO_INPUT | ENABLE_LINE_INPUT)));
if (RestoreMode) {
SetConsoleMode(ConsoleHandle,
ConsoleMode & (~ (ENABLE_ECHO_INPUT | ENABLE_LINE_INPUT)));
}
ReadConsoleA((HANDLE)_get_osfhandle(stdin->_file),
&c,
1,
&NumberOfCharsRead,
NULL);
if (RestoreMode) {
SetConsoleMode(ConsoleHandle, ConsoleMode);
}
}
if (c == 10)
c = 13;
putchar(c);
return c;
}