From the March 2012 Issue of Prestwood eMag

Delphi Language Details: Using InputBox By Mike Prestwood

Posted 22 years ago on 8/21/2002 Take Away: InputBox allows you to set a value, display it to the user, and have the user change it. Although InputBox generally isn’t flashy enough for finished applications, it is great for debugging and smaller “in-house” applications.  Tags: Borland Delphi Object PASCAL InputBox KB100007

To do:

1. Add a button to our form (set its Caption to InputBox).
2. Double click on the button to bring up the editor.
3. Add lines 2, 3, 5, and 6 from the code listing to it.
4. Run and test the program.

Notes:

1. Notice we used to the “+” symbol to concatenate two strings (a literal and a variable).
2. Because themethod Button4Click belongs to the class TForm1, the first line must include both to uniquely identify the method. You’ll learn a lot more about object oriented programming as you learn Delphi. For now, this simple definition will work.

Code Listing

1. procedure TForm1.Button4Click(Sender: TObject);
2. var
3.   sAns : String;
4. begin
5.   sAns := InputBox('Question', 'What is you name?', 'Tiger Woods');
6.   ShowMessage('Hello ' + sAns);
7. end; 

Comments

KB Post Contributed By Mike Prestwood:

Mike Prestwood is a drummer, an author, and creator of the PrestwoodBoards online community. He is the President & CEO of Prestwood IT Solutions. Prestwood IT provides Coding, Website, and Computer Tech services. Mike has authored 6 computer books and over 1,200 articles. As a drummer, he maintains play-drums.com and has authored 3 drum books. If you have a project you wish to discuss with Mike, you can send him a private message through his PrestwoodBoards home page or call him 9AM to 4PM PST at 916-726-5675 x205. Visit Profile