Title: Zipping Splitting and Sending PART I
Question: How to split a file.
Answer:
Splitting files PART 1 Zipping, Splitting and Sending
Why would we want to split files? Lets say you want to send new application updates too your clients, but the file size is greater than what the clients mailbox permits. So the solution wont it be great if I zipped the file, and then check the size, if its still too large I will split the zipped file, into parts, with sizes I can define myself.yup sounds good lets do that.
What youll need for my article
1. A zip application, Ive catered for WinZip, and FilZip in my code, but if you have another zip application, and know its exported functions, just replace either WinZip or FilZip code with yours.
2. The Indy clients components I only used the components for the actual emailing facility. You can use any method you want.
START HERE
1.Create new Application, rename the form frmMain, and caption Split & Join Demo. Drop a PageControl component onto your form rename it pgcMain, align all client. Create two tabsheets. Change the first tabsheets caption too Zip, split and send and name to tbsSplitSend. The others caption Join and Unzip and name tbsUnzipJoin.
2.On tbsSplitSend - Drop a TLabel, TEdit, TOpendialog, and TSpeedbutton component. Rename them too lblFileName, edtFilename, dlgOpenfile, and btnOpenFile.
3.Drop another TLabel rename it lblFileSize, and caption too 0.
4.SORRY ALMOST DONE - Drop six more TEdits, align them nicely. Rename them
edtHost This will be your email servers ipaddress.
edtName This will be the senders name, i.e. dappie@webmail.co.za.
edtRecipient This will be the email recipients (; separated if sent too
more recipients).
edtSubject This will be the emailssubject.
edtUpdateDir The files will be zipped, joined and sent from this
folder.
edtZipDir Location where the .exe file for the zip application you want to
use is located.Normally c:\Program Files\WinZip\.PLEASE NOTE THAT THE
ZIP/UPDATE PATHS SHOULD END WITH A \ CHARACTER.Drop six TLabel components
and align them nicely.
5.Drop a TMemo component. Rename it memEmailBody This will be your actual email message body. Again drop a TLabel component and align them nicely.
6.Change all label captions, so that they would make sense too you, or the user.
7.Finally drop another TSpeedbutton, and rename it btnProcessEmail. Remember to add glyphs too your speedbuttons, if needed.
8.Add a datamodule to your application rename it dtmMain. Drop a TIdSMTP component, found in the Indy clients component tab. Change the creation order of the application, move the datamodule so that it will be created first. Can be found at Project - Options - Forms tab.
9.Create a new unit uConst. All your constant values will be held here. Some variables aswell, - please note that storing variables in this manner is not best practice, one should rather make use of properties. Copy the following code for uConst.
------------------------------- UCONST START -----------------------------------
unit uConst;
interface
uses Classes, WinTypes;
var
ZipType : integer;
ZipApp : string;
const
INITOUSE = 'SplitDemo.ini';
WINZIP = 0;
FILZIP = 1;
MAXFILESIZE = 900;
ZERO = 0;
ZIPFILE = 0;
UNZIPFILE = 1;
Table : array[0..255] of DWord =
($00000000, $77073096, $EE0E612C, $990951BA,
$076DC419, $706AF48F, $E963A535, $9E6495A3,
$0EDB8832, $79DCB8A4, $E0D5E91E, $97D2D988,
$09B64C2B, $7EB17CBD, $E7B82D07, $90BF1D91,
$1DB71064, $6AB020F2, $F3B97148, $84BE41DE,
$1ADAD47D, $6DDDE4EB, $F4D4B551, $83D385C7,
$136C9856, $646BA8C0, $FD62F97A, $8A65C9EC,
$14015C4F, $63066CD9, $FA0F3D63, $8D080DF5,
$3B6E20C8, $4C69105E, $D56041E4, $A2677172,
$3C03E4D1, $4B04D447, $D20D85FD, $A50AB56B,
$35B5A8FA, $42B2986C, $DBBBC9D6, $ACBCF940,
$32D86CE3, $45DF5C75, $DCD60DCF, $ABD13D59,
$26D930AC, $51DE003A, $C8D75180, $BFD06116,
$21B4F4B5, $56B3C423, $CFBA9599, $B8BDA50F,
$2802B89E, $5F058808, $C60CD9B2, $B10BE924,
$2F6F7C87, $58684C11, $C1611DAB, $B6662D3D,
$76DC4190, $01DB7106, $98D220BC, $EFD5102A,
$71B18589, $06B6B51F, $9FBFE4A5, $E8B8D433,
$7807C9A2, $0F00F934, $9609A88E, $E10E9818,
$7F6A0DBB, $086D3D2D, $91646C97, $E6635C01,
$6B6B51F4, $1C6C6162, $856530D8, $F262004E,
$6C0695ED, $1B01A57B, $8208F4C1, $F50FC457,
$65B0D9C6, $12B7E950, $8BBEB8EA, $FCB9887C,
$62DD1DDF, $15DA2D49, $8CD37CF3, $FBD44C65,
$4DB26158, $3AB551CE, $A3BC0074, $D4BB30E2,
$4ADFA541, $3DD895D7, $A4D1C46D, $D3D6F4FB,
$4369E96A, $346ED9FC, $AD678846, $DA60B8D0,
$44042D73, $33031DE5, $AA0A4C5F, $DD0D7CC9,
$5005713C, $270241AA, $BE0B1010, $C90C2086,
$5768B525, $206F85B3, $B966D409, $CE61E49F,
$5EDEF90E, $29D9C998, $B0D09822, $C7D7A8B4,
$59B33D17, $2EB40D81, $B7BD5C3B, $C0BA6CAD,
$EDB88320, $9ABFB3B6, $03B6E20C, $74B1D29A,
$EAD54739, $9DD277AF, $04DB2615, $73DC1683,
$E3630B12, $94643B84, $0D6D6A3E, $7A6A5AA8,
$E40ECF0B, $9309FF9D, $0A00AE27, $7D079EB1,
$F00F9344, $8708A3D2, $1E01F268, $6906C2FE,
$F762575D, $806567CB, $196C3671, $6E6B06E7,
$FED41B76, $89D32BE0, $10DA7A5A, $67DD4ACC,
$F9B9DF6F, $8EBEEFF9, $17B7BE43, $60B08ED5,
$D6D6A3E8, $A1D1937E, $38D8C2C4, $4FDFF252,
$D1BB67F1, $A6BC5767, $3FB506DD, $48B2364B,
$D80D2BDA, $AF0A1B4C, $36034AF6, $41047A60,
$DF60EFC3, $A867DF55, $316E8EEF, $4669BE79,
$CB61B38C, $BC66831A, $256FD2A0, $5268E236,
$CC0C7795, $BB0B4703, $220216B9, $5505262F,
$C5BA3BBE, $B2BD0B28, $2BB45A92, $5CB36A04,
$C2D7FFA7, $B5D0CF31, $2CD99E8B, $5BDEAE1D,
$9B64C2B0, $EC63F226, $756AA39C, $026D930A,
$9C0906A9, $EB0E363F, $72076785, $05005713,
$95BF4A82, $E2B87A14, $7BB12BAE, $0CB61B38,
$92D28E9B, $E5D5BE0D, $7CDCEFB7, $0BDBDF21,
$86D3D2D4, $F1D4E242, $68DDB3F8, $1FDA836E,
$81BE16CD, $F6B9265B, $6FB077E1, $18B74777,
$88085AE6, $FF0F6A70, $66063BCA, $11010B5C,
$8F659EFF, $F862AE69, $616BFFD3, $166CCF45,
$A00AE278, $D70DD2EE, $4E048354, $3903B3C2,
$A7672661, $D06016F7, $4969474D, $3E6E77DB,
$AED16A4A, $D9D65ADC, $40DF0B66, $37D83BF0,
$A9BCAE53, $DEBB9EC5, $47B2CF7F, $30B5FFE9,
$BDBDF21C, $CABAC28A, $53B39330, $24B4A3A6,
$BAD03605, $CDD70693, $54DE5729, $23D967BF,
$B3667A2E, $C4614AB8, $5D681B02, $2A6F2B94,
$B40BBE37, $C30C8EA1, $5A05DF1B, $2D02EF8D);
type
THeaderBlock = record
ProgramName : string[30];
Fill1 : char;
OriginalFile : string[30];
Fill2 : char;
end;
implementation
end.
-------------------------------- UCONST END ------------------------------------
10.Create a new unit uBase. All your global functions & procedures will reside here, simple reasons - reuse of procedures, simplifies maintenance on your application, and speeds up the actual development time. Copy the following code for uBase.
------------------------------- UBASE START ------------------------------------
unit uBase;
interface
uses Windows, IniFiles, Registry, SysUtils, Controls, Dialogs, uConst,
ShellApi, IdBaseComponent, IdComponent, IdTCPConnection, IdTCPClient,
IdMessageClient, IdSMTP, IdTCPServer, IdSMTPServer, IdMessage, Classes;
var
EmailMessage : TIdMessage;
function MesDlg(sMessage :shortstring; iWhat :char) : TModalResult;
function cCopyFiles(inSource, inDestination : string) : boolean;
function ReadIni(sIniName, sSection, sIDent : shortstring) : shortstring;
procedure WriteIni(sIniName, sSection, sIDent, sToWrite : shortstring);
procedure RegisterFiletype(FileType,FileKey,Description,Icon,ProgramUsed : string);
function GetSize(inFilename : string) : integer;
procedure DoZipProcedure(FromFile,ToFile : shortString ; inProcess : integer);
procedure SplitFile(inSize : integer; inFile : string);
function GetChecksum(FileHandle : THandle) : DWord;
function CalcCRC32(inPointer : Pointer; ByteCount : DWord) : DWord;
procedure SendEmail(inZipFile, EmailHost, EmailName, Recipient , Subject : string;
Body : TStrings);
procedure AddAttachments(inFile : string);
function BuildUpdateFile(inFileName,CurrFolder,FileNumber : string) : string;
function GetNewFileName(inFileName,inFolder,inFileNumber : shortstring) : shortstring;
implementation
uses dmMain;
{******************************* GENERAL START ********************************}
function MesDlg(sMessage :shortstring; iWhat :char):TModalResult;
begin
case iWhat of
'E' : Result := MessageDlg(sMessage,mtError,[mbOk],ZERO);
'F' : Result := MessageDlg(sMessage,mtConfirmation,mbYesNoCancel,ZERO);
'I' : Result := MessageDlg(sMessage,mtInformation,[mbOk],ZERO);
'C' : Result := MessageDlg(sMessage,mtConfirmation,[mbYes,mbNo],ZERO);
'W' : Result := MessageDlg(sMessage,mtWarning,[mbOk],ZERO);
'X' : Result := MessageDlg(sMessage,mtWarning,[mbYes,mbNo],ZERO);
else Result := mrNone;
end;
end;
function cCopyFiles(inSource, inDestination : string) : boolean;
begin //Overwrite file
Result := CopyFile(pChar(inSource),pChar(inDestination),false);
end;
{******************************** GENERAL END *********************************}
{****************************** INI FILES START *******************************}
function ReadIni(sIniName, sSection, sIDent: shortstring): shortstring;
var
IniFileName : TIniFile;
begin
IniFileName := TIniFile.Create(sIniName);
Result := IniFileName.ReadString(sSection,sIDent,'');
IniFileName.Free;
end;
procedure WriteIni(sIniName, sSection, sIDent, sToWrite: shortstring);
var
IniFileName : TIniFile;
begin
IniFileName := TIniFile.Create(sIniName);
IniFileName.WriteString(sSection,sIDent,sToWrite);
IniFileName.Free;
end;
{******************************* INI FILES END ********************************}
{****************************** REGISTRY START ********************************}
procedure RegisterFiletype(FileType,FileKey,Description,Icon,ProgramUsed : string);
var
Reg : TRegInifile;
Count : integer;
begin
Count := pos('.',FileType);
while Count 0 do
begin
Delete(FileType,Count,1);
Count := pos('.',FileType);
end;
if (FileType = '') or (ProgramUsed = '') then
exit;
Reg := TRegInifile.Create('');
try
Reg.RootKey := HKEY_CLASSES_ROOT;//Where all file-types are described
if FileKey = '' then
FileKey := Copy(FileType,2,MaxInt)+'_auto_file';//if no key-name is given,create one
Reg.WriteString(FileType,'',FileKey); //set a pointer to the description-key
Reg.WriteString(FileKey,'',Description); //write the description
if Icon '' then
Reg.WriteString(FileKey+'\DefaultIcon','',Icon);//Write the def-icon if given
Reg.WriteString(FileKey+'\shell\open\command','',ProgramUsed+' "%1"');//association
finally
Reg.free;
end;
end;
{******************************* REGISTRY END *********************************}
{***************************** SIZE FILES START *******************************}
function GetSize(inFilename : string) : integer;
var
Handle1 : THandle;
Win32FData : TWIN32FINDDATA;
begin
Result := 0;
if not FileExists(inFilename) then
Exit;
Handle1 := FindFirstFile(pchar(inFilename),Win32FData);
if Handle1 = INVALID_HANDLE_VALUE then
Exit;
Result := Win32FData.nFileSizeLow;
Windows.FindClose(Handle1);
end;
{FILZIP}
{
-a : Add files
-e : Extract files
ADD
r : Add recursive
p : Save path names
f : Save full path info
s : Load filelist from parameter file
EXTRACT
r : restore path names
o : overwrite existing files
u : update older files
{******************************************************************************}
{******************************************************************************}
{WINZIP}
{-min : Run WinZip as minimized.
-a : Add files.
-s : Encript with password.
-e : Extract files.
-o & -j: Overwrite existing files without prompting.
{******************************************************************************}
{This procedure is used when ever files need zip, or unzip processes
The ZipType is set after the GetZipApplication on the main form was completed
WINZIP and FILZIP is defined within the uConst unit, the process defines which
task should be carried out, either zip or unzip}
procedure DoZipProcedure(FromFile,ToFile : shortString ; inProcess : integer);
var
ExecPath : string;
begin
case ZipType of
WINZIP : begin
case inProcess of
ZIPFILE : ExecPath := ZipApp+' -min -a '+ToFile+' '+FromFile;
UNZIPFILE : ExecPath := ZipApp+' -min -e -o & -j '+FromFile+' '+ToFile;
end;
end;
FILZIP : begin
case inProcess of
ZIPFILE : ExecPath := ZipApp+' -a -r '+ToFile+' '+FromFile;
UNZIPFILE : ExecPath := ZipApp+' -e -o '+FromFile+' '+ToFile;
end;
end;
end;
WinExec(PChar(ExecPath),SW_HIDE);
end;
procedure SplitFile(inSize : integer; inFile : string);
var
Count : integer;
ReadSize : integer;
Buffer : pchar;
ReadHandle : THandle;
WriteHandle : THandle;
OldCursor : HCursor;
CheckSum : DWord;
SplitFileName : string;
Modified : TFileTime;
begin
GetMem(Buffer,inSize);
ReadHandle := FileOpen(inFile,fmOpenRead or fmShareDenyNone);
OldCursor := SetCursor(LoadCursor(0,IDC_WAIT));
Checksum := GetChecksum(ReadHandle);
WriteHandle := FileCreate(inFile+'.999');
FileWrite(WriteHandle,Checksum,SizeOf(Checksum));
FileClose(WriteHandle);
GetFileTime(ReadHandle,nil,nil,@Modified);
Count := 1;
repeat
ReadSize := FileRead(ReadHandle,Buffer^,inSize);
SplitFilename := inFile+Format('.%3.3d',[Count]);
WriteHandle := FileCreate(SplitFilename);
FileWrite(WriteHandle,Buffer^,ReadSize);
SetFileTime(WriteHandle,nil,nil,@Modified);
FileClose(WriteHandle);
inc(Count);
until (ReadSize inSize);
FileClose(ReadHandle);
SetCursor(OldCursor);
FreeMem(Buffer);
end;
function GetChecksum(FileHandle : THandle) : DWord;
var
MapHandle : THandle;
MemPointer : Pointer;
begin
Result := $FFFFFFFF;
MemPointer := nil;
MapHandle := 0;
try
MapHandle := CreateFileMapping(FileHandle,nil,PAGE_READONLY,0,0,nil);
if MapHandle = 0 then
Exit;
MemPointer := MapViewOfFile(MapHandle,FILE_MAP_READ,0,0,0);
if MemPointer = nil then
Exit;
Result := CalcCRC32(MemPointer,GetFileSize(FileHandle,nil));
finally
if Assigned(MemPointer) then
UnmapViewOfFile(MemPointer);
if MapHandle 0 then
CloseHandle(MapHandle);
end;
end;
function CalcCRC32(inPointer : Pointer; ByteCount : DWord) : DWord;
var
i : DWord;
q : PByte;
begin
q := inPointer;
Result := $FFFFFFFF;
for i := 0 to ByteCount-1 do
begin
Result := (Result shr 8) xor Table[q^ xor (Result and $000000ff)];
inc(q);
end;
Result := not Result;
end;
{******************************** SIZE FILES END ******************************}
{****************************** EMAIL FILES START *****************************}
procedure SendEmail(inZipFile, EmailHost, EmailName, Recipient , Subject : string;
Body : TStrings);
var
i : integer;
begin
dtmDemo.SMTPHost.Host := EmailHost;
if dtmDemo.SMTPHost.Connected = False then
dtmDemo.SMTPHost.Connect;
EmailMessage := TIdMessage.Create(nil);
EmailMessage.From.Name := EmailName;
EmailMessage.Recipients.EMailAddresses := Recipient;
EmailMessage.Subject := Subject;
EmailMessage.Body.Clear;
for i := 0 to Body.Count-1 do
EmailMessage.Body.Add(Body.Strings[i]);
AddAttachments(inZipFile);
EmailMessage.Free;
EmailMessage := nil;
dtmDemo.SMTPHost.Disconnect;
end;
procedure AddAttachments(inFile : string);
var
CurrFolder : string;
SplitFile : string;
SplitPart : string;
i : integer;
CurrNo : string;
FileAttach : TIdAttachment;
begin
CurrFolder := ExtractFilePath(inFile);
SplitFile := inFile+'.999';
if FileExists(SplitFile) then
begin
for i := 1 to 999 do
begin
CurrNo := IntToStr(i);
while length(CurrNo) CurrNo := '0'+CurrNo;
SplitPart := inFile+'.'+CurrNo;
if FileExists(SplitPart) then
begin
FileAttach := TIdAttachment.Create(EmailMessage.MessageParts,BuildUpdateFile(SplitPart,CurrFolder,CurrNo));
dtmDemo.SMTPHost.Send(EmailMessage);
FileAttach.Free;
end;
end;
end
else
begin
FileAttach := TIdAttachment.Create(EmailMessage.MessageParts,BuildUpdateFile(ExtractFileName(inFile),CurrFolder,CurrNo));
dtmDemo.SMTPHost.Send(EmailMessage);
FileAttach.Free;
end;
end;
function BuildUpdateFile(inFileName,CurrFolder,FileNumber : string) : string;
var
SaveAsName : string;
FileName : shortstring;
HeaderBlock : THeaderBlock;
UpdateFile : File;
CurrFile : TFileStream;
NewFile : TFileStream;
My2ByteBuffer : array[1..1024] of char;
begin
SaveAsName := inFileName;
Result := GetNewFileName(inFileName,CurrFolder,FileNumber);
{$I+}
if not FileExists(Result) then
cCopyFiles(inFileName,Result);
FileName := Result+Chr(0);
AssignFile(UpdateFile,FileName);
Rewrite(UpdateFile,1);
FillChar(HeaderBlock,SizeOf(THeaderBlock),0);
HeaderBlock.ProgramName := trim('AutoUpdater.exe');
HeaderBlock.OriginalFile := SaveAsName;
FillChar(My2ByteBuffer,SizeOf(My2ByteBuffer),0);
Move(HeaderBlock,My2ByteBuffer[1],SizeOf(THeaderBlock));
BlockWrite(UpdateFile,My2ByteBuffer,1024);
CloseFile(UpdateFile);
CurrFile := TFileStream.Create(inFileName,fmOpenRead);
CurrFile.Seek(0,soFromBeginning);
NewFile := TFileStream.Create(FileName,fmOpenWrite);
NewFile.Seek(0,soFromEnd);
NewFile.CopyFrom(CurrFile,CurrFile.Size);
CurrFile.Free;
NewFile.Free;
{$I-}
end;
function GetNewFileName(inFileName,inFolder,inFileNumber : shortstring) : shortstring;
var
NewName : string;
begin
NewName := Copy(inFileName,0,pos('.',inFileName)-1);
if pos('.zip.',inFileName) 0 then
begin
if inFileNumber = '999' then
Result := NewName+'_link.dap'
else
Result := NewName+'_'+inFileNumber+'.dap';
end
else
Result := inFileName;
end;
{******************************* EMAIL FILES END ******************************}
end.
------------------------------ UBASE END ---------------------------------------
HARD WORK DONE CODING STARTS HERE
1.On frmMains form show event.
procedure TfrmMain.FormShow(Sender : TObject);
begin
pgcMain.ActivePageIndex := 0; //Set the tbsSplitSend as the active tabsheet.
pgcMain.OnChange(nil);
end;
2.On pgcMains on change event.
procedure TfrmMain.pgcDemoChange(Sender: TObject);
begin
case pgcMain.ActivePageIndex of
0 : begin // tabsheet number 0 tbsSplitSend
{Get default settings read it from a ini file, "INITOUSE" which is a constant in the Uconst unit.
Use the ReadIni wrapper procedure found in the uBase unit.}
edtHost.Text := ReadIni(INITOUSE,'EmailSettings','EmailHost');//Email host server ip.
edtName.Text := ReadIni(INITOUSE,'EmailSettings','EmailName');//The display name, as seen by the email recipient.
edtSubject.Text := ReadIni(INITOUSE,'EmailSettings','EmailSubject');//Email's subject.
memMessageBody.Lines.Text := ReadIni(INITOUSE,'EmailSettings','EmailBody');//Email message.
edtUpdateDir.Text := ReadIni(INITOUSE,'Updates','UpdateDirectory');//Update directory, directory that will be used to work with the files you need to send.
edtZipDir.Text := ReadIni(INITOUSE,'Updates','ZipDirectory');//Update directory, directory that will be used to work with the files you need to send.
if length(edtUpdateDir.Text) 0 then
if not DirectoryExists(edtUpdateDir.Text) then
MesDlg('Please provide a existing update directory, specified directory does not exist.','E');
{Get's the zip application that is going to be used to process the files, t
he application's executable must be within the Zip directory}
if FindFirst(edtZipDir.Text+'winzip32.exe',faAnyFile,FindFile) = 0 then
begin
ZipApp := edtZipDir.Text+'winzip32.exe';
ZipType := WINZIP;
end;
if FindFirst(edtZipDir.Text+'Filzip.exe',faAnyFile,FindFile) = 0 then
begin
ZipApp := edtZipDir.Text+'Filzip.exe';
ZipType := FILZIP;
end;
end;
1 : RegisterFileType('.dap','DemoSplitJoin','Split and Join zip file',ExtractFilePath(Application.ExeName)+'Demo.ico',Application.ExeName);
end;
end;
3.On the btnFileNames click event
procedure TfrmMain.btnFilenameClick(Sender: TObject);
begin
if dlgOpenFile.Execute then
begin
Filename := dlgOpenFile.FileName;
edtFilename.Text := Filename;
FileSize := GetSize(Filename);
lblFileSize.Caption := 'File size : '+FloatToStrF((FileSize/1024),ffNumber,9,2);
end;
end;
4.On btnProcessEmails click event
procedure TfrmMain.btnProcessEmailClick(Sender: TObject);
begin
if length(edtRecipient.Text) 0 then
begin
Self.Cursor := crHourGlass;
GetZipFileName;
SaveSettingsToIni;
if length(edtUpdateDir.Text) 0 then
if not DirectoryExists(edtUpdateDir.Text) then
MesDlg('Please provide a existing update directory, specified directory does not exist.','E')
else
begin
if length(ExtractFileName(Filename)) 0 then
begin
DoZipProcedure(FileName,ZipFileName,ZIPFILE);
while not FileExists(ZipFileName) do
Sleep(0);
FileSize := GetSize(ZipFileName);
if (FileSize/1024) MAXFILESIZE then
begin
SplitSize := MAXFILESIZE*1024;
SplitFile(SplitSize,ZipFileName);
end;
SendEmail(ZipFileName,edtHost.Text,edtName.Text,edtRecipient.Text,edtSubject.Text,memMessageBody.Lines);
end
else
begin
MesDlg('Please provide a file you would like to email.','E');
edtFilename.SetFocus;
end;
end;
Self.Cursor := crDefault;
end
else
MesDlg('Please add your recipients.','E');
end;
5.Finally create two new private procedures, and add private variables
....private
{ Private declarations }
Filename : string;
ZipFileName : string;
FileSize : integer;
SplitSize : integer;
FindFile : TSearchRec;
procedure GetZipFileName;
procedure SaveSettingsToIni;....
procedure TfrmMain.GetZipFileName;
begin
ZipFileName := Copy(ExtractFileName(Filename),0,pos('.',ExtractFileName(Filename)));
ZipFileName := edtUpdateDir.Text+ZipFileName+'zip';
end;
procedure TfrmMain.SaveSettingsToIni;
begin
WriteIni(INITOUSE,'EmailSettings','EmailHost',edtHost.Text);
WriteIni(INITOUSE,'EmailSettings','EmailName',edtName.Text);
WriteIni(INITOUSE,'EmailSettings','EmailSubject',edtSubject.Text);
WriteIni(INITOUSE,'EmailSettings','EmailBody',memMessageBody.Text);
WriteIni(INITOUSE,'Updates','UpdateDirectory',edtUpdateDir.Text);
WriteIni(INITOUSE,'Updates','ZipDirectory',edtZipDir.Text);
end;
by Dewald Marais Part II coming soon.