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...show password characters in a InputBox?
Autor: Thomas Stutz
[ Print tip ]  

Tip Rating (85):  
     


const
  
InputBoxMessage = WM_USER + 200;

type
  
TForm1 = class(TForm)
    Button1: TButton;
    procedure Button1Click(Sender: TObject);
  private
    procedure 
InputBoxSetPasswordChar(var Msg: TMessage); message InputBoxMessage;
  public
  end
;

var
  
Form1: TForm1;

implementation

{$R *.DFM}

procedure TForm1.InputBoxSetPasswordChar(var Msg: TMessage);
var
  
hInputForm, hEdit, hButton: HWND;
begin
  
hInputForm := Screen.Forms[0].Handle;
  if (hInputForm <> 0) then
  begin
    
hEdit := FindWindowEx(hInputForm, 0, 'TEdit', nil);
    {
      // Change button text:
      hButton := FindWindowEx(hInputForm, 0, 'TButton', nil);
      SendMessage(hButton, WM_SETTEXT, 0, Integer(PChar('Cancel')));
    }
    
SendMessage(hEdit, EM_SETPASSWORDCHAR, Ord('*'), 0);
  end;
end;

procedure TForm1.Button1Click(Sender: TObject);
var
  
InputString: string;
begin
  
PostMessage(Handle, InputBoxMessage, 0, 0);
  InputString := InputBox('Input Box', 'Please Enter a Password', '');
end;


 

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