Change folder time

Unit unit1; <br/> interface <br/> uses <br/> Windows, messages, sysutils, variants, classes, graphics, controls, forms, <br/> dialogs, comctrls, stdctrls; <br/> type <br/> tform1 = Class (tform) <br/> datetimepicker1: tdatetimepicker; <br/> datetimepicker2: tdatetimepicker; <br/> datetimepicker3: tdatetimepicker; <br/> datetimepicker4: tdatetimepicker; <br/> button1: tbutton; <br/> label1: tlabel; <br/> label2: tlabel; <br/> opendialog1: topendialog; <br/> edit1: tedit; <br/> button2: tbutton; <br/> procedure button1click (Sender: tobject ); <br/> procedure button2click (Sender: tobject ); <br/> private <br/> {private Declarations} <br/> Public <br/> {public declarations} <br/> end; <br/> var <br/> form1: tform1; <br/> Implementation <br/> {$ R *. DFM} <br/> function covfiledate (FD: _ filetime): tdatetime; // time format of the converted file <br/> var <br/> TCT: _ systemtime; <br/> temp: _ filetime; <br/> begin <br/> filetimetolocalfiletime (FD, temp); <br/> filetimetosystemtime (temp, TCT ); <br/> covfiledate: = systemtimetodatetime (TCT); <br/> end; <br/> procedure getfiletime (const TF: string); // get the file time, input value indicates the path of the target file <br/> const <br/> model = 'yyyy/MM/DD, HH: mm: ss '; // This is the time format <br/> var <br/> TP: tsearchrec; // declare a search record <br/> T1, T2, T3: string; <br/> begin <br/> findfirst (TF, faanyfile, TP); // search for the target file <br/> T1: = formatdatetime (model, covfiledate (TP. finddata. ftcreationtime); // returns the file creation time <br/> T2: = formatdatetime (model, covfiledate (TP. finddata. ftlastwritetime); // The modification time of the returned file <br/> T3: = formatdatetime (model, now ); // The current access time of the returned file <br/> findclose (TP); <br/> end; <br/> procedure setfiledatetime (const TF: string ); // set the file time. The input value indicates the path of the target file <br/> var <br/> dt1, dt2: integer; <br/> FS: tfilestream; <br/> FCT, Flt: tfiletime; <br/> begin <br/> dt1: = datetimetofiledate (trunc (form1.datetimepicker1. date) + frac (form1.datetimepicker2. time); <br/> dt2: = datetimetofiledate (trunc (form1.datetimepicker3. date) + frac (form1.datetimepicker4. time); <br/> // The information of the user input in datatimepicker, form1.datetimepicker1. date and form1.datetimepicker2. time is the creation time, form1.datetimepicker3. date and form1.datetimepicker4. time is the modification time <br/> try <br/> FS: = tfilestream. create (TF, fmopenreadwrite); // create a tfilestream <br/> try <br/> If dosdatetimetofiletime (longrec (dt1 ). hi, longrec (dt1 ). lo, FCT) and localfiletimetofiletime (FCT, FCT) and dosdatetimetofiletime (longrec (dt2 ). hi, longrec (dt2 ). lo, Flt) and localfiletimetofiletime (FLT, Flt) <br/> then setfiletime (FS. handle, @ FCT, @ FLT, @ Flt); // sets the file time attribute <br/> finally <br/> FS. free; // release <br/> end; <br/> messagedlg ('Modified successfully', mtconfirmation, [mbok], 0 ); // prompt <br/> success T <br/> messagedlg ('modification failed', mterror, [mbok], 0 ); // failure due to the usage of the target file <br/> end; <br/> procedure tform1.button1click (Sender: tobject ); <br/> begin <br/> setfiledatetime (edit1.text); // press start to set the file time <br/> end; <br/> procedure tform1.button2click (Sender: tobject); <br/> begin <br/> If opendialog1.execute then edit1.text: = opendialog1.filename; // select a file <br/> end; <br/> end.