• Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 222
  • Last Modified:

How i check if CTRL key is pressed when i click on a Button?


I´d like to check if CTRL key is pressed when i click on a Button. Do you know how i implement this?

Best Regards.
0
joelsilva
Asked:
joelsilva
1 Solution
 
TyrsisCommented:
Here you go:

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls;

type
  TForm1 = class(TForm)
    Button1: TButton;
    Memo1: TMemo;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
var
    iState : SmallInt;
begin
    if(GetKeyState(VK_CONTROL) < 0) then
    begin
        Memo1.Lines.Add('Control Key Pressed');
    end
    else
    begin
        Memo1.Lines.Add('Control Key NOT Pressed');
    end;
end;

end.
0
 
joelsilvaAuthor Commented:
Thanks very much... I appreciate so much your answer.
0

Featured Post

Free Tool: IP Lookup

Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Tackle projects and never again get stuck behind a technical roadblock.
Join Now