Pascal Code
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unit GetUserLoginID;
interface uses Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics, Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Vcl.Buttons; type TMainFrm = class(TForm) lbl1: TLabel; edt1: TEdit; btn1: TBitBtn; procedure btn1Click(Sender: TObject); private { Private declarations } public { Public declarations } end; var MainFrm: TMainFrm; implementation {$R *.dfm} procedure TMainFrm.btn1Click(Sender: TObject); const cnMaxUserNameLen = 254; var sUserName : string; dwUserNameLen : DWORD; begin dwUserNameLen := cnMaxUserNameLen -1; SetLength(sUserName, cnMaxUserNameLen); GetUserName(PChar(sUserName),dwUserNameLen); SetLength(sUserName, dwUserNameLen); edt1.Text := sUserName; end; end. |