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Read_String
Purpose Provides single line input of any characters, offering full line
editing features, optional prompt display and optional box
drawing.
Decln. Read_String(X,Y,L:byte;Prompt:strScreen;Box:byte;Var
Str:strscreen);
Remarks X, Y are the coordinates of the first character of the prompt or
the first character of the input field if the prompt is null.
L is the length of the input line.
Prompt is an optional prompt. The prompt is normally displayed to
the left of the input field. If the prompt begins with a carat
'' and the box border is on, the prompt is drawn in the upper
box border. If the prompt begins with an underscore '_' and the
box border is on, the prompt is drawn in the lower box border.
Set the prompt to a null '' if no prompt is required.
Box is a box code. The codes are the same as for the Box
procedure in FastTTT5. To suppress the box, use a code of zero.
Str is the string that will be updated with the user's input.
The display characteristics of the input line are contained in
the global variable RTTT.
The global variable R_Char is updated with the last character
pressed by the user. This can be checked to see how the user
terminated input, e.g. Esc, Up Arrow, etc.
Example
VAR
TTT : STRSCREEN;
BEGIN
TTT := '';
READ_STRING(5,10,40,'STREET ADDRESS ===> ',1,TTT);
END;
See Also:
Read_Alpha
Read_String_Upper
Read_YN
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