Reads a character from the current text window.
read_char reads a character from the keyboard in the current input window (= output window). If the character is printable it is returned in Char. If a control key has been pressed this will be indicated by the value of Code. Some important keys are recognizable by this value. Possible values are:
'character' printable character
'left' cursor left
'right' cursor right
'up' cursor up
'down' cursor down
'insert' insert
'none' none of these keys
The current window has to be a text window.
|
Char (output_control) |
string -> string |
| input character (if it is not a control character). | |
|
Code (output_control) |
string -> string |
| code for input character. | |
read_char returns TRUE, if a text window is activated. Otherwise an exception is raised.
set_window, open_textwindow, search_font, set_font
read_string, fread_char, fread_string