Código
* PasswordInputBox()
* Praticamente o mesmo que InputHox apenas com diferencial que é senha
*
* Autor: Jociel Eloy de Almeida
* Data: 29/NOV/2003
*
* Exemplo:
* var
* sPass: String;
* begin
* sPass := PasswordInputBox('Senha','Digite sua senha');
* ShowMessage(sPass);
* end;
*}
FUNCTION PasswordInputBox(const ACaption, APrompt:string): String;
var
Form: TForm;
Prompt: TLabel;
Edit: TEdit;
DialogUnits: TPoint;
ButtonTop, ButtonWidth, ButtonHeight: Integer;
Value: string;
I: Integer;
Buffer: array[0..51] of Char;
begin
Result := '';
Form := TForm.Create(Application);
with Form do
try
Canvas.Font := Font;
for I := 0 to 25 do Buffer[I] := Chr(I + Ord('A'));
for I := 0 to 25 do Buffer[I + 26] := Chr(I + Ord('a'));
GetTextExtentPoint(Canvas.Handle, Buffer, 52, TSize(DialogUnits));
DialogUnits.X := DialogUnits.X div 52;
BorderStyle := bsDialog;
Caption := ACaption;
ClientWidth := MulDiv(180, DialogUnits.X, 4);
ClientHeight := MulDiv(63, DialogUnits.Y, 8);
Position := poScreenCenter;
Prompt := TLabel.Create(Form);
with Prompt do begin
Parent := Form;
AutoSize := True;
Left := MulDiv(8, DialogUnits.X, 4);
Top := MulDiv(8, DialogUnits.Y, 8);
Caption := APrompt;
end;
Edit := TEdit.Create(Form);
with Edit do begin
Parent := Form;
Left := Prompt.Left;
Top := MulDiv(19, DialogUnits.Y, 8);
Width := MulDiv(164, DialogUnits.X, 4);
MaxLength := 255;
PasswordChar := '*';
SelectAll;
end;
ButtonTop := MulDiv(41, DialogUnits.Y, 8);
ButtonWidth := MulDiv(50, DialogUnits.X, 4);
ButtonHeight := MulDiv(14, DialogUnits.Y, 8);
with TButton.Create(Form) do begin
Parent := Form;
Caption := 'OK';
ModalResult := mrOk;
Default := True;
SetBounds(MulDiv(38, DialogUnits.X, 4),ButtonTop, ButtonWidth,ButtonHeight);
end;
with TButton.Create(Form) do begin
Parent := Form;
Caption := 'Cancel';
ModalResult := mrCancel;
Cancel := True;
SetBounds(MulDiv(92, DialogUnits.X, 4),ButtonTop, ButtonWidth,ButtonHeight);
end;
if ShowModal = mrOk then begin
Value := Edit.Text;
Result := Value;
end;
finally
Form.Free;
Form:=nil;
end;
end;
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