Io Error 103 Delphi
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I O Error 103 Windows 7
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What Does I/o Error 103 Mean
Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it i/o error 103 windows only takes a minute: Sign up How do I solve I/O error 103 in delphi up vote 2 down vote favorite So Basically I'm in College in the UK (So that's school for Americans (17 years old)) and I have to make a file handling project for my finals. I have done most of it but it's the login screen that i/o error 103 screensaver is weighing me down a lot. What I want from the program to do is read the username and password and log the people in. There can be 2 different outputs. If you type in "Staff" in the username and "warwickschool2013" in the username, the program takes you to the "teacher" side of the program where they can add in new users. unit LoginScreen; interface uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls, jpeg, ExtCtrls; type TfrmLogin = class(TForm) lblWelcomeLogin: TLabel; edtPassword: TEdit; lblPassword: TLabel; btnLogin: TButton; btnClose: TButton; lblCounter: TLabel; lblAttempts: TLabel; Image1: TImage; edtUsername: TEdit; lblUserName: TLabel; procedure btnCloseClick(Sender: TObject); procedure btnLoginClick(Sender: TObject); private { Private declarations } public { Public declarations } end; var frmLogin: TfrmLogin; implementation uses MainMenu, TeachersMainMenu, ViewEditTheData, Globals_Unit; var LoginDataArray: array of TLoginData; counter: integer; Password, username : String; Count1, Count2 : integer; Temp: TLoginData; {$R *.dfm} procedure TfrmLogin.btnLoginClick(Sender: TObject); var SearchName : string[10]; SearchCode : string[3]; begin Password:=edtPassword.Text; UserName:=edtUserName.Text; btnclose.enabled:= true; if (Password = 'warwickschool2013') AND (Username = 'Staff') then begin edtPassword.text :=''; frmTeachersMainMenu.show; frmLogin.hide; counter:= 0; lblCounter.
Search Advanced Search Go to Page... Thread Tools Display Modes #1 06-13-2002, 02:11 PM MrBaseball34 Senior Member Join Date: Jan 2001 Posts: 7,260 Prevent I/O Error 103 Not
I/0 Error 103
used to Std. I/O operations... When using AssignFile and CloseFile, I am sometimes getting delphi rewrite a 103 error (File is not open). How can I check to see if, in fact, the file is open before
I/o Error 103 Windows Xp
the CloseFile call? MrBaseball34 View Public Profile Visit MrBaseball34's homepage! Find all posts by MrBaseball34 #2 06-13-2002, 02:37 PM vandub Member Join Date: Aug 2001 Posts: 44 RE: Prevent I/O Error http://stackoverflow.com/questions/22026948/how-do-i-solve-i-o-error-103-in-delphi 103 you could use the {$i-} command then check the ioresult for an error AssignFile(F, FileName); {$I-} Reset(F); {$I+} if IOResult = 0 then MessageDlg('File size in bytes: ' + IntToStr(FileSize(F)), mtInformation, [mbOk], 0) else MessageDlg('File access error', mtWarning, [mbOk], 0); vandub View Public Profile Send a private message to vandub Visit vandub's homepage! Find all posts by vandub #3 06-13-2002, 02:37 PM HTML Senior Member http://www.delphipages.com/forum/showthread.php?t=58954 Join Date: Jan 2001 Posts: 2,977 RE: Prevent I/O Error 103 Hello, This site has many examples on File I/O and uses IoResult(should return 0 if successfull) in few places in the snippets. http://homepages.borland.com/efg2lab/Library/Delphi/IO/FileIO.htm If perhaps you can post a snippet of your code that you think cuases the problem , that would help. :-) HTML View Public Profile Send a private message to HTML Visit HTML's homepage! Find all posts by HTML #4 06-13-2002, 10:35 PM PoseFant Senior Member Join Date: Jan 2001 Posts: 1,002 RE: Prevent I/O Error 103 you could use the {$i-} command then check the ioresult for an error AssignFile(F, FileName); {$I-} Reset(F); {$I+} if IOResult = 0 then MessageDlg('File size in bytes: ' + IntToStr(FileSize(F)), mtInformation, [mbOk], 0) else MessageDlg('File access error', mtWarning, [mbOk], 0); --- Regards /Filip I've lost my autosignature ... *sobbing* ... PoseFant View Public Profile Send a private message to PoseFant Visit PoseFant's homepage! Find all posts by PoseFant #5 06-14-2002, 05:34 AM MrBaseball34 Senior Member Join Date: Jan 2001 Posts: 7,260 RE: Prevent I/O Error 103 Hey, Filip, did you just simply copy vandub's post verbatim? Anyway... I want to know how to determine if the file is ope
f: TextFile;) The Line with Rewrite crashes with I/O Error 103: ERROR_TOO_MANY_SEM_REQUESTS (The semaphore cannot be set again.) What does that mean?? What is wrong? Thanks, Philipp Adam Fli Delphi Developer Wed, 26 May 2004 http://www.delphigroups.info/2/6d/479235.html 00:14:06 GMT Re:I/O Error 103 I/O Error are not the same as Win32 Errors. This is Run Time Error as named in old Borland Pascal. The number 103 means File Not Open, but it is not predicted to http://www.delphipraxis.net/72228-i-o-error-103-a.html apear on rewrite function. Please check if it is on this function. I belive that file is not created correctly and so it is not opened. You may send more code too, that i can se what can error 103 be wrong. Adam Quote"Philipp Crocoll"
I/O Error 103 Ein Thema von bonanza · begonnen am 27. Jun 2006 · letzter Beitrag vom 27. Jun 2006 Antwort Seite 1 von 3 1 23 Nächste bonanza Registriert seit: 13. Sep 2005 134 Beiträge RAD-Studio 2009 Arc #1 I/O Error 103 27. Jun 2006, 12:27 Hi, ich bekomme in folgendem Code einen "I/O Error 103": markieren Delphi-Quellcode: AssignFile (Text_Datei, 'C:\test.txt'); rewrite(text_datei); Write(Text_Datei, IdHTTP.Get('http:/-entfernt-/test.txt') ); CloseFile(Text_Datei); was heißt das ? und wie kann ich das beheben ? vielen dank schonmal im voraus ! Zitat bonanza Öffentliches Profil ansehen Mehr Beiträge von bonanza finden EDatabaseError Registriert seit: 11. Mai 2005 Ort: Göppingen 1.238 Beiträge Delphi 2007 Professional #2 Re: I/O Error 103 27. Jun 2006, 12:31 I/O: Zitat: 103 Datei nicht geöffnet Wird von CloseFile, Read, Write, Seek Eof, FilePos FileSize, Flush, BlockRead oder BlockWrite gemeldet, wenn die Datei nicht geöffnet ist. TobiasIt's not a bug, it's a feature. Meine Homepage :: http://uav-project.net/ Zitat EDatabaseError Öffentliches Profil ansehen Besuche die Homepage von EDatabaseError! Mehr Beiträge von EDatabaseError finden bonanza Registriert seit: 13. Sep 2005 134 Beiträge RAD-Studio 2009 Arc #3 Re: I/O Error 103 27. Jun 2006, 12:33 und wie kann ich das jetzt beheben ? wenn ich doch eine neue datei mit "assignfile" erstelle, dann ist sie doch offen oder nicht ?! Zitat bonanza Öffentliches Profil ansehen Mehr Beiträge von bonanza finden EDatabaseError Registriert seit: 11. Mai 2005 Ort: Göppingen 1.238 Beiträge Delphi 2007 Professional #4 Re: I/O Error 103 27. Jun 2006, 12:34 Mit AssignFile wird die Datei nicht erstellt sondern definiert. Erstellen tust du mit ReWrite. Mfg TobiasIt's not a bug, it's a feature. Meine Homepage :: http://uav-project.net/ Zitat EDatabaseError Öffentliches Profil ansehen Besuche die Homepage von EDatabaseError! Mehr Beiträge von EDatabaseError finden Luckie (Moderator) Registriert seit: 29. Mai 2002 36.241 Beiträge Delphi 2006 Professional #5 Re: I/O