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How differentiate use 'mouse' click the button or use 'enter' press the button?

hi,dear experts,now I need your kind help very much.The question is as follows:
   When I did a little program,the 'showmessage' box was used.You see,there exists a 'confirm' button on the showmessage box,now,I want to differentiate if the user click the confirm button with mouse or use 'enter' to press the button?What shall I do?
    Hope to hear from you soon.Thank you for your viewing.
     
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bingohua
Asked:
bingohua
1 Solution
 
MannSoftCommented:
I think you would probably have to create your own custom message box and use it in place of ShowMessage.  Then you would know if the mouse or keyboard was used to press the button by watching its OnKey* and OnMouse* events for that object.
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geobulCommented:
Hi,
One label and one button on a form. IsMouse boolean variable stores the last user action (mouse or keyboard)

Regards, Geo

unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    Button1: TButton;
    Label1: TLabel;
    procedure Button1Click(Sender: TObject);
    procedure AppOnMessage(var Msg: TMsg; var Handled: Boolean);
    procedure FormCreate(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;
  IsMouse : boolean = true;

implementation

{$R *.DFM}

procedure TForm1.AppOnMessage(var Msg: TMsg; var Handled: Boolean);
begin
  { if keyboard or left mouse btn is used }
  if Msg.Message = WM_LBUTTONUP then begin
    IsMouse := true;
  end else begin
    IsMouse := false;
  end;
  Handled := False;
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
  ShowMessage('hello');
  if IsMouse then
    Label1.Caption := 'Mouse'
  else
    Label1.Caption := 'Keyboard';
end;

procedure TForm1.FormCreate(Sender: TObject);
begin
  Application.OnMessage := AppOnMessage;
end;

end.
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YunoshevCommented:
Either write your own custom message box or use subclassing.....
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bingohuaAuthor Commented:
Thank you for your instant help.
Best regards.
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