Question

Convert (var Key: Word) to ASCII Character

Asked by: SurferJoe

FormKeyDown(Sender: TObject; var Key: Word;  Shift: TShiftState);

There has to be an easy way to  convert (Key) to the ASCII equivalent?
Something like;
  var
    s: String;
   
    s := WordToStr(Key);

Brain Dead........

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Asked On
2009-05-08 at 06:51:25ID24392366
Tags

Delphi type conversions

Topic

Delphi Programming

Participating Experts
3
Points
500
Comments
10

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Answers

 

by: EddieShipmanPosted on 2009-05-08 at 06:54:59ID: 24336054

Char(Key), perhaps?

 

by: EddieShipmanPosted on 2009-05-08 at 06:57:04ID: 24336075

procedure TForm1.FormKeyUp(Sender: TObject; var Key: Word;
  Shift: TShiftState);
begin
  if ssShift in Shift then
    ShowMessage(Char(Key))
  else
    ShowMessage(LowerCase(Char(Key)));
end;

 

by: louislietaerPosted on 2009-05-08 at 07:17:58ID: 24336272

No

Chr(Key) will give a char (see also ord() function)

Char will cast the word, I will not recommend.

you could use it like that

if (chr(Key)='a') or (chr(key)='A') then
begin
  ...
end

 

by: Geert_GruwezPosted on 2009-05-08 at 07:33:09ID: 24336407

this is a virtual key you are getting
check the VK_ constants in the windows unit

ciuly created a small unit to create such a unit once for me:
http://www.experts-exchange.com/Programming/Languages/Pascal/Delphi/Q_23823866.html

that time it was for the messages.

 

by: Geert_GruwezPosted on 2009-07-21 at 13:00:09ID: 24908704

>> Never did get any of this to meet my needs, please close question.

you haven't even posted a remark

this is not just ask a question and wait for an answer
if you see you aren't getting anywhere then post some more info
or react on the comments

 

by: EddieShipmanPosted on 2009-07-21 at 13:17:07ID: 24908870

I agree, you were given several correct answers to your question on how to convert the word in a KeyDown to a character.

You must select one or more as the answer, dude!

 

by: EddieShipmanPosted on 2009-07-21 at 13:56:12ID: 24909241

modus, why did you select an answer?

 

by: SurferJoePosted on 2009-07-21 at 14:08:31ID: 24909371

I selected an answer as I  could not bear the complaints.

 

by: EddieShipmanPosted on 2009-07-21 at 14:45:41ID: 24909675

It would have been easier to tell us what about the posted solutions didn't work for you than to try to delete the question without an explanation. As I said earlier, you were given several correct answers to your question and you were expected to select one or more.

If you'd been more upfront with us, there would have not been any complaints.

20120131-EE-VQP-002

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