How can I use the same event for multiple Buttons?

Applies To: C++Builder 1 or higher
Category: Knowledge Base

 

I have 3 Buttons on my form and I want to use the same OnClick event for all of them. How can this be done?

 

1.

  Start a new application.

 

2.

  Add three (3) Buttons.

 

3.

  Set their Tag property to respectively 1, 2 and 3.

 

4.

  Select them all.

 

5.

  Double-click the OnClick event:

 

void __fastcall TForm1::Button3Click(TObject *Sender)

{

    ShowMessage("You clicked on Button #" + IntToStr

        (((TButton *)Sender)->Tag));

}

 

Hints

 

C++Builder 4 or greater includes support for action lists that simplify the process of code sharing.

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