Category : Pascal Source Code
Archive   : INPUT.ZIP
Filename : DEMOINPU.PAS

Program DemoInputUnit;

Uses
Crt, InputUn;

var
InKey : char;
AnyString : string;
AnyInt : longint;
AnyNum : real;
Escape : boolean;

begin
ClrScr;
writeln;
Inverse;
writeln(' Text in Inverse mode ');
writeln;
Underline;
writeln(' Text in Underline mode ( if using a monochrome monitor)');
writeln;
normal;
writeln(' Back to normal ');
writeln;
writeln(' The GoBack procedure is used...(press any key)................ ');
Inkey:=readkey;
goback;
writeln(' To erase a line and write a new one (press any key) ');
InKey:=readkey;
ClrScr;
writeln(' The ReadString function takes 3 parameters');
writeln(' Function ReadString( Prompt : string; width : byte; var Escape : boolean )');
writeln(' : string;');
writeln(' Prompt is the string that is first put into the edit field.');
writeln(' This is the string that the function returns if the function is exited with');
writeln(' an Esc at any time, or a return while it is there.');
writeln(' This prompt may be edited if the right arrow or the insert key is pressed');
writeln(' on the first input, otherwise the prompt will disappear. The return key ');
writeln(' will input all the visible characters in the field and exit the function.');
writeln(' The Del, left and right arrow keys work as does the backspace.');
writeln(' The Ins key toggles the insert mode where new characters are inserted ');
writeln(' instead of written over. It is initially off.');
writeln(' Esc will also exit the function, return the prompt as the result and set ');
writeln(' the Escape parameter to true (otherwise set to false with a return');
writeln(' the width parameter sets the maximum length of the string');
writeln(' This field is highlighted in Inverse. It may be turned off by setting the');
writeln(' InverseOn to true. Another Global varible that affects this function is');
writeln(' ValidCharSet which is initially set to the set of all printable characters.');
writeln(' You can change it before calling this function, and is reset to the ');
writeln(' DefaultSet const after calling it. The InverseOn varible will convert');
writeln(' all letters to uppercase if set to true. It is initially set to false');
writeln;
repeat
write('Input a string->');
AnyString:=ReadString('This is your prompt',20,escape);
writeln;
goback;
if escape
then write(' Escape Exit ');
writeln('Your string is ''',AnyString,'''');
inkey:=readkey;
goback;
write('Input an integer ( ReadInt )->');
AnyInt:=ReadInt(123,5,Escape);
writeln;
goback;
if escape
then write(' Escape Exit ');
writeln('Your integer is ',AnyInt);
if escape then exit;
inkey:=readkey;
goback;
write('Input a real number ( ReadNum )->');
AnyNum:=ReadNum(1.23,8,escape);
writeln;
goback;
if escape
then write(' Escape Exit ');
writeln('Your Number is ',AnyNum:0:5);
if escape then exit;
if not escape
then begin
Inkey:=readkey;
goback;
end;
until escape;
end.