16
我正在写一个应用程序，应该将一堆文件从一个地方复制到另一个地方。 当我使用TFileStream进行复制时，它比使用操作系统复制文件慢3-4倍。德尔福快速文件复制
我也尝试复制一个缓冲区，但这太慢了。
我在Win32下工作，任何人都对此有所了解？
A
回答
27
有有几个选项。
- 你可以调用的CopyFile它采用 的CopyFileA窗口API
- 你可以调用的API，它Explorer使用（在Windows API SHFileOperation）。调用该函数的 的示例可以在 SCIP.be
- 上找到您可以编写自己的使用缓冲区的函数。
如果你知道文件的类型等你去复制，这是第3方法通常会优于其他人。因为Windows API更适合整体最佳情况（小文件，大文件，网络文件，慢速文件）。您可以更多地调整自己的复印功能以适应您的需求。
下面是我自己的缓冲拷贝功能（我已经剥离出来的GUI回调）：
procedure CustomFileCopy(const ASourceFileName, ADestinationFileName: TFileName);
const
BufferSize = 1024; // 1KB blocks, change this to tune your speed
var
Buffer : array of Byte;
ASourceFile, ADestinationFile: THandle;
FileSize: DWORD;
BytesRead, BytesWritten, BytesWritten2: DWORD;
begin
SetLength(Buffer, BufferSize);
ASourceFile := OpenLongFileName(ASourceFileName, 0);
if ASourceFile <> 0 then
try
FileSize := FileSeek(ASourceFile, 0, FILE_END);
FileSeek(ASourceFile, 0, FILE_BEGIN);
ADestinationFile := CreateLongFileName(ADestinationFileName, FILE_SHARE_READ);
if ADestinationFile <> 0 then
try
while (FileSize - FileSeek(ASourceFile, 0, FILE_CURRENT)) >= BufferSize do
begin
if (not ReadFile(ASourceFile, Buffer[0], BufferSize, BytesRead, nil)) and (BytesRead = 0) then
Continue;
WriteFile(ADestinationFile, Buffer[0], BytesRead, BytesWritten, nil);
if BytesWritten < BytesRead then
begin
WriteFile(ADestinationFile, Buffer[BytesWritten], BytesRead - BytesWritten, BytesWritten2, nil);
if (BytesWritten2 + BytesWritten) < BytesRead then
RaiseLastOSError;
end;
end;
if FileSeek(ASourceFile, 0, FILE_CURRENT) < FileSize then
begin
if (not ReadFile(ASourceFile, Buffer[0], FileSize - FileSeek(ASourceFile, 0, FILE_CURRENT), BytesRead, nil)) and (BytesRead = 0) then
ReadFile(ASourceFile, Buffer[0], FileSize - FileSeek(ASourceFile, 0, FILE_CURRENT), BytesRead, nil);
WriteFile(ADestinationFile, Buffer[0], BytesRead, BytesWritten, nil);
if BytesWritten < BytesRead then
begin
WriteFile(ADestinationFile, Buffer[BytesWritten], BytesRead - BytesWritten, BytesWritten2, nil);
if (BytesWritten2 + BytesWritten) < BytesRead then
RaiseLastOSError;
end;
end;
finally
CloseHandle(ADestinationFile);
end;
finally
CloseHandle(ASourceFile);
end;
end;
自己的功能：
function OpenLongFileName(const ALongFileName: String; SharingMode: DWORD): THandle; overload;
begin
if CompareMem(@(ALongFileName[1]), @('\\'[1]), 2) then
{ Allready an UNC path }
Result := CreateFileW(PWideChar(WideString(ALongFileName)), GENERIC_READ, SharingMode, nil, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0)
else
Result := CreateFileW(PWideChar(WideString('\\?\' + ALongFileName)), GENERIC_READ, SharingMode, nil, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);
end;
function OpenLongFileName(const ALongFileName: WideString; SharingMode: DWORD): THandle; overload;
begin
if CompareMem(@(WideCharToString(PWideChar(ALongFileName))[1]), @('\\'[1]), 2) then
{ Allready an UNC path }
Result := CreateFileW(PWideChar(ALongFileName), GENERIC_READ, SharingMode, nil, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0)
else
Result := CreateFileW(PWideChar('\\?\' + ALongFileName), GENERIC_READ, SharingMode, nil, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);
end;
function CreateLongFileName(const ALongFileName: String; SharingMode: DWORD): THandle; overload;
begin
if CompareMem(@(ALongFileName[1]), @('\\'[1]), 2) then
{ Allready an UNC path }
Result := CreateFileW(PWideChar(WideString(ALongFileName)), GENERIC_WRITE, SharingMode, nil, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0)
else
Result := CreateFileW(PWideChar(WideString('\\?\' + ALongFileName)), GENERIC_WRITE, SharingMode, nil, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0);
end;
function CreateLongFileName(const ALongFileName: WideString; SharingMode: DWORD): THandle; overload;
begin
if CompareMem(@(WideCharToString(PWideChar(ALongFileName))[1]), @('\\'[1]), 2) then
{ Allready an UNC path }
Result := CreateFileW(PWideChar(ALongFileName), GENERIC_WRITE, SharingMode, nil, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0)
else
Result := CreateFileW(PWideChar('\\?\' + ALongFileName), GENERIC_WRITE, SharingMode, nil, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0);
end;
的代码是一个长一点是必要的，因为我包括一个重试机制来支持我的无线连接问题。
所以这部分
if BytesWritten < BytesRead then
begin
WriteFile(ADestinationFile, Buffer[BytesWritten], BytesRead - BytesWritten, BytesWritten2, nil);
if (BytesWritten2 + BytesWritten) < BytesRead then
RaiseLastOSError;
end;
可以写成
if BytesWritten < BytesRead then
begin
RaiseLastOSError;
end;
3
可以具有资源管理器通过SHFileOperation（）http://msdn.microsoft.com/en-us/library/bb762164(VS.85).aspx（例如代码德尔福这样做：http://delphi.icm.edu.pl/ftp/d20free/fileop11.zip）为你做
2
你可以尝试直接调用CopyFile Windows API函数
3
也许你可以学习Cobian备份8（代号为Black Moon）源代码。它是Delphi编写的开源代码。
1
或者你也可以做到这一点“脏”的方式...... 我已经发现了一些旧代码，没有工作（不知道是否是快）：
procedure CopyFile(const FileName, DestName: string);
var
CopyBuffer : Pointer; { buffer for copying }
BytesCopied : Longint;
Source, Dest : Integer; { handles }
Destination : TFileName; { holder for expanded destination name }
const
ChunkSize : Longint = 8192; { copy in 8K chunks }
begin
Destination := DestName;
GetMem(CopyBuffer, ChunkSize); { allocate the buffer }
try
Source := FileOpen(FileName, fmShareDenyWrite); { open source file }
if Source < 0
then raise EFOpenError.CreateFmt('Error: Can''t open file!', [FileName]);
try
Dest := FileCreate(Destination); { create output file; overwrite existing }
if Dest < 0
then raise EFCreateError.CreateFmt('Error: Can''t create file!', [Destination]);
try
repeat
BytesCopied := FileRead(Source, CopyBuffer^, ChunkSize); { read chunk }
if BytesCopied > 0 {if we read anything... }
then FileWrite(Dest, CopyBuffer^, BytesCopied); { ...write chunk }
until BytesCopied < ChunkSize; { until we run out of chunks }
finally
FileClose(Dest); { close the destination file }
end;
finally
FileClose(Source); { close the source file }
end;
finally
FreeMem(CopyBuffer, ChunkSize); { free the buffer }
end;
end;
1
首先，我是撞了这个古老的线程抱歉，但我做出了极大的答案有些显著变化由戴维兰德曼为我自己的需要。这些变化是：
- 加入到使用相对路径（当然绝对和UNC路径的支持保管）
- 添加回调的能力，以显示该副本的屏幕上进步的可能性（请继续阅读）或取消复制过程
- 主代码被清理了一下。我认为，支持Unicode保持，但我真的不知道，因为我使用Delphi编译器的最新版本的ANSI（如果任何人都可以测试？）
若要使用此代码，创建一个FastCopy.pas文件在您的项目，然后复制粘贴内容：
{
FastCopyFile
By SiZiOUS 2014, based on the work by Davy Landman
www.sizious.com - @sizious - fb.com/sizious - sizious (at) gmail (dot) com
This unit was designed to copy a file using the Windows API.
It's faster than using the (old) BlockRead/Write and TFileStream methods.
Every destination file will be overwritten (by choice), unless you specify
the fcfmAppend CopyMode flag. In that case, the source file will be appened to
the destination file (instead of overwriting it).
You have the choice to use a normal procedure callback, method object callback
or no callback at all. The callback is used to cancel the copy process and to
display the copy progress on-screen.
Developed and tested under Delphi 2007 (ANSI).
If you are using a Unicode version of Delphi (greater than Delphi 2007), may
be you need to do some adapations (beware of the WideString type).
All credits flying to Davy Landman.
http://stackoverflow.com/questions/438260/delphi-fast-file-copy
}
unit FastCopy;
interface
uses
Windows, SysUtils;
type
TFastCopyFileMode = (fcfmCreate, fcfmAppend);
TFastCopyFileNormalCallback = procedure(const FileName: TFileName;
const CurrentSize, TotalSize: LongWord; var CanContinue: Boolean);
TFastCopyFileMethodCallback = procedure(const FileName: TFileName;
const CurrentSize, TotalSize: LongWord; var CanContinue: Boolean) of object;
// Simplest definition
function FastCopyFile(
const ASourceFileName, ADestinationFileName: TFileName): Boolean; overload;
// Definition with CopyMode and without any callbacks
function FastCopyFile(
const ASourceFileName, ADestinationFileName: TFileName;
CopyMode: TFastCopyFileMode): Boolean; overload;
// Definition with normal procedure callback
function FastCopyFile(
const ASourceFileName, ADestinationFileName: TFileName;
CopyMode: TFastCopyFileMode;
Callback: TFastCopyFileNormalCallback): Boolean; overload;
// Definition with object method callback
function FastCopyFile(
const ASourceFileName, ADestinationFileName: TFileName;
CopyMode: TFastCopyFileMode;
Callback: TFastCopyFileMethodCallback): Boolean; overload;
implementation
{ Dummy Callback: Method Version }
type
TDummyCallBackClient = class(TObject)
private
procedure DummyCallback(const FileName: TFileName;
const CurrentSize, TotalSize: LongWord; var CanContinue: Boolean);
end;
procedure TDummyCallBackClient.DummyCallback(const FileName: TFileName;
const CurrentSize, TotalSize: LongWord; var CanContinue: Boolean);
begin
// Nothing
CanContinue := True;
end;
{ Dummy Callback: Classical Procedure Version }
procedure DummyCallback(const FileName: TFileName;
const CurrentSize, TotalSize: LongWord; var CanContinue: Boolean);
begin
// Nothing
CanContinue := True;
end;
{ CreateFileW API abstract layer }
function OpenLongFileName(ALongFileName: string; DesiredAccess, ShareMode,
CreationDisposition: LongWord): THandle;
var
IsUNC: Boolean;
FileName: PWideChar;
begin
// Translate relative paths to absolute ones
ALongFileName := ExpandFileName(ALongFileName);
// Check if already an UNC path
IsUNC := Copy(ALongFileName, 1, 2) = '\\';
if not IsUNC then
ALongFileName := '\\?\' + ALongFileName;
// Preparing the FileName for the CreateFileW API call
FileName := PWideChar(WideString(ALongFileName));
// Calling the API
Result := CreateFileW(FileName, DesiredAccess, ShareMode, nil,
CreationDisposition, FILE_ATTRIBUTE_NORMAL, 0);
end;
{ FastCopyFile implementation }
function FastCopyFile(const ASourceFileName, ADestinationFileName: TFileName;
CopyMode: TFastCopyFileMode;
Callback: TFastCopyFileNormalCallback;
Callback2: TFastCopyFileMethodCallback): Boolean; overload;
const
BUFFER_SIZE = 524288; // 512KB blocks, change this to tune your speed
var
Buffer: array of Byte;
ASourceFile, ADestinationFile: THandle;
FileSize, BytesRead, BytesWritten, BytesWritten2, TotalBytesWritten,
CreationDisposition: LongWord;
CanContinue, CanContinueFlag: Boolean;
begin
FileSize := 0;
TotalBytesWritten := 0;
CanContinue := True;
SetLength(Buffer, BUFFER_SIZE);
// Manage the Creation Disposition flag
CreationDisposition := CREATE_ALWAYS;
if CopyMode = fcfmAppend then
CreationDisposition := OPEN_ALWAYS;
// Opening the source file in read mode
ASourceFile := OpenLongFileName(ASourceFileName, GENERIC_READ, 0, OPEN_EXISTING);
if ASourceFile <> 0 then
try
FileSize := FileSeek(ASourceFile, 0, FILE_END);
FileSeek(ASourceFile, 0, FILE_BEGIN);
// Opening the destination file in write mode (in create/append state)
ADestinationFile := OpenLongFileName(ADestinationFileName, GENERIC_WRITE,
FILE_SHARE_READ, CreationDisposition);
if ADestinationFile <> 0 then
try
// If append mode, jump to the file end
if CopyMode = fcfmAppend then
FileSeek(ADestinationFile, 0, FILE_END);
// For each blocks in the source file
while CanContinue and (LongWord(FileSeek(ASourceFile, 0, FILE_CURRENT)) < FileSize) do
begin
// Reading from source
if (ReadFile(ASourceFile, Buffer[0], BUFFER_SIZE, BytesRead, nil)) and (BytesRead <> 0) then
begin
// Writing to destination
WriteFile(ADestinationFile, Buffer[0], BytesRead, BytesWritten, nil);
// Read/Write secure code block (e.g. for WiFi connections)
if BytesWritten < BytesRead then
begin
WriteFile(ADestinationFile, Buffer[BytesWritten], BytesRead - BytesWritten, BytesWritten2, nil);
Inc(BytesWritten, BytesWritten2);
if BytesWritten < BytesRead then
RaiseLastOSError;
end;
// Notifying the caller for the current state
Inc(TotalBytesWritten, BytesWritten);
CanContinueFlag := True;
if Assigned(Callback) then
Callback(ASourceFileName, TotalBytesWritten, FileSize, CanContinueFlag);
CanContinue := CanContinue and CanContinueFlag;
if Assigned(Callback2) then
Callback2(ASourceFileName, TotalBytesWritten, FileSize, CanContinueFlag);
CanContinue := CanContinue and CanContinueFlag;
end;
end;
finally
CloseHandle(ADestinationFile);
end;
finally
CloseHandle(ASourceFile);
end;
// Check if cancelled or not
if not CanContinue then
if FileExists(ADestinationFileName) then
DeleteFile(ADestinationFileName);
// Results (checking CanContinue flag isn't needed)
Result := (FileSize <> 0) and (FileSize = TotalBytesWritten);
end;
{ FastCopyFile simple definition }
function FastCopyFile(const ASourceFileName, ADestinationFileName: TFileName): Boolean; overload;
begin
Result := FastCopyFile(ASourceFileName, ADestinationFileName, fcfmCreate);
end;
{ FastCopyFile definition without any callbacks }
function FastCopyFile(const ASourceFileName, ADestinationFileName: TFileName;
CopyMode: TFastCopyFileMode): Boolean; overload;
begin
Result := FastCopyFile(ASourceFileName, ADestinationFileName, CopyMode,
DummyCallback);
end;
{ FastCopyFile definition with normal procedure callback }
function FastCopyFile(const ASourceFileName, ADestinationFileName: TFileName;
CopyMode: TFastCopyFileMode;
Callback: TFastCopyFileNormalCallback): Boolean; overload;
var
DummyObj: TDummyCallBackClient;
begin
DummyObj := TDummyCallBackClient.Create;
try
Result := FastCopyFile(ASourceFileName, ADestinationFileName, CopyMode,
Callback, DummyObj.DummyCallback);
finally
DummyObj.Free;
end;
end;
{ FastCopyFile definition with object method callback }
function FastCopyFile(const ASourceFileName, ADestinationFileName: TFileName;
CopyMode: TFastCopyFileMode;
Callback: TFastCopyFileMethodCallback): Boolean; overload;
begin
Result := FastCopyFile(ASourceFileName, ADestinationFileName, CopyMode,
DummyCallback, Callback);
end;
end.
主要方法被称为FastCopyFile，你必须为每一个需要安装4个重载函数。下面你会看到两个例子，告诉你如何玩这个单位。
第一种是最简单：只需创建一个Console Application，然后复制粘贴以下内容：
program Project1;
{$APPTYPE CONSOLE}
uses
SysUtils,
fastcopy in 'fastcopy.pas';
begin
try
WriteLn('FastCopyFile Result: ', FastCopyFile('test2.bin', 'test.bin'));
WriteLn('Strike the <ENTER> key to exit...');
ReadLn;
except
on E:Exception do
Writeln(E.Classname, ': ', E.Message);
end;
end.
如果你愿意，我做为了一个VCL应用程序向您展示如何显示复制进步和夭折的可能性。此应用程序是多线程的，以避免GUI冻结。为了测试这个更完整的例子，创建一个新的VCL应用程序，然后使用下面的代码：
Unit1.pas：
unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, ComCtrls, StdCtrls, ExtCtrls, FastCopy;
type
TFastCopyFileThread = class;
TForm1 = class(TForm)
Button1: TButton;
ProgressBar1: TProgressBar;
Label1: TLabel;
Button2: TButton;
RadioGroup1: TRadioGroup;
GroupBox1: TGroupBox;
Edit1: TEdit;
GroupBox2: TGroupBox;
Edit2: TEdit;
OpenDialog1: TOpenDialog;
SaveDialog1: TSaveDialog;
Button3: TButton;
Button4: TButton;
procedure Button1Click(Sender: TObject);
procedure Button2Click(Sender: TObject);
procedure FormCreate(Sender: TObject);
procedure Button3Click(Sender: TObject);
procedure Button4Click(Sender: TObject);
private
{ Déclarations privées }
fFastCopyFileThread: TFastCopyFileThread;
fFastCopyFileThreadCanceled: Boolean;
procedure ChangeControlsState(State: Boolean);
procedure FastCopyFileProgress(Sender: TObject; FileName: TFileName;
Value: Integer; var CanContinue: Boolean);
procedure FastCopyFileTerminate(Sender: TObject);
function GetStatusText: string;
procedure SetStatusText(const Value: string);
public
{ Déclarations publiques }
procedure StartFastCopyThread;
property StatusText: string read GetStatusText write SetStatusText;
end;
TFastCopyFileProgressEvent = procedure(Sender: TObject; FileName: TFileName;
Value: Integer; var CanContinue: Boolean) of object;
TFastCopyFileThread = class(TThread)
private
fSourceFileName: TFileName;
fDestinationFileName: TFileName;
fProgress: TFastCopyFileProgressEvent;
fCopyMode: TFastCopyFileMode;
procedure FastCopyFileCallback(const FileName: TFileName;
const CurrentSize, TotalSize: LongWord; var CanContinue: Boolean);
protected
procedure Execute; override;
public
constructor Create; overload;
property SourceFileName: TFileName
read fSourceFileName write fSourceFileName;
property DestinationFileName: TFileName
read fDestinationFileName write fDestinationFileName;
property CopyMode: TFastCopyFileMode read fCopyMode write fCopyMode;
property OnProgress: TFastCopyFileProgressEvent
read fProgress write fProgress;
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
{ TForm1 }
procedure TForm1.Button1Click(Sender: TObject);
begin
StartFastCopyThread;
end;
procedure TForm1.Button2Click(Sender: TObject);
begin
fFastCopyFileThread.Terminate;
fFastCopyFileThreadCanceled := True;
end;
procedure TForm1.Button3Click(Sender: TObject);
begin
with OpenDialog1 do
if Execute then
Edit1.Text := FileName;
end;
procedure TForm1.Button4Click(Sender: TObject);
begin
with SaveDialog1 do
if Execute then
Edit2.Text := FileName;
end;
procedure TForm1.ChangeControlsState(State: Boolean);
begin
Button1.Enabled := State;
Button2.Enabled := not State;
if State then
begin
if fFastCopyFileThreadCanceled then
StatusText := 'Aborted!'
else
StatusText := 'Done!';
fFastCopyFileThreadCanceled := False;
end;
end;
procedure TForm1.FastCopyFileProgress(Sender: TObject; FileName: TFileName;
Value: Integer; var CanContinue: Boolean);
begin
StatusText := ExtractFileName(FileName);
ProgressBar1.Position := Value;
end;
procedure TForm1.FastCopyFileTerminate(Sender: TObject);
begin
ChangeControlsState(True);
end;
procedure TForm1.FormCreate(Sender: TObject);
begin
ChangeControlsState(True);
StatusText := 'Idle...';
end;
function TForm1.GetStatusText: string;
begin
Result := Label1.Caption;
end;
procedure TForm1.SetStatusText(const Value: string);
begin
Label1.Caption := Value;
end;
procedure TForm1.StartFastCopyThread;
begin
ChangeControlsState(False);
fFastCopyFileThread := TFastCopyFileThread.Create;
with fFastCopyFileThread do
begin
SourceFileName := Edit1.Text;
DestinationFileName := Edit2.Text;
CopyMode := TFastCopyFileMode(RadioGroup1.ItemIndex);
OnProgress := FastCopyFileProgress;
OnTerminate := FastCopyFileTerminate;
Resume;
end;
end;
{ TFastCopyFileThread }
constructor TFastCopyFileThread.Create;
begin
inherited Create(True);
FreeOnTerminate := True;
end;
procedure TFastCopyFileThread.Execute;
begin
FastCopyFile(SourceFileName, DestinationFileName, CopyMode,
FastCopyFileCallback);
end;
procedure TFastCopyFileThread.FastCopyFileCallback(const FileName: TFileName;
const CurrentSize, TotalSize: LongWord; var CanContinue: Boolean);
var
ProgressValue: Integer;
begin
CanContinue := not Terminated;
ProgressValue := Round((CurrentSize/TotalSize) * 100);
if Assigned(OnProgress) then
OnProgress(Self, FileName, ProgressValue, CanContinue);
end;
end.
Unit1.dfm：
object Form1: TForm1
Left = 0
Top = 0
BorderStyle = bsDialog
Caption = 'FastCopyFile Example (Threaded)'
ClientHeight = 210
ClientWidth = 424
Color = clBtnFace
Font.Charset = DEFAULT_CHARSET
Font.Color = clWindowText
Font.Height = -11
Font.Name = 'Tahoma'
Font.Style = []
OldCreateOrder = False
Position = poScreenCenter
OnCreate = FormCreate
PixelsPerInch = 96
TextHeight = 13
object Label1: TLabel
Left = 8
Top = 173
Width = 31
Height = 13
Caption = 'Label1'
end
object Button1: TButton
Left = 259
Top = 177
Width = 75
Height = 25
Caption = 'Start'
Default = True
TabOrder = 0
OnClick = Button1Click
end
object ProgressBar1: TProgressBar
Left = 8
Top = 188
Width = 245
Height = 13
TabOrder = 1
end
object Button2: TButton
Left = 340
Top = 177
Width = 75
Height = 25
Caption = 'Stop'
TabOrder = 2
OnClick = Button2Click
end
object RadioGroup1: TRadioGroup
Left = 4
Top = 110
Width = 410
Height = 57
Caption = ' Copy Mode: '
ItemIndex = 0
Items.Strings = (
'Create (Overwrite destination)'
'Append (Merge destination)')
TabOrder = 3
end
object GroupBox1: TGroupBox
Left = 4
Top = 4
Width = 412
Height = 49
Caption = ' Source: '
TabOrder = 4
object Edit1: TEdit
Left = 8
Top = 20
Width = 369
Height = 21
TabOrder = 0
Text = 'test.bin'
end
object Button3: TButton
Left = 383
Top = 20
Width = 21
Height = 21
Caption = '...'
TabOrder = 1
OnClick = Button3Click
end
end
object GroupBox2: TGroupBox
Left = 4
Top = 59
Width = 412
Height = 50
Caption = ' Destination: '
TabOrder = 5
object Edit2: TEdit
Left = 8
Top = 21
Width = 369
Height = 21
TabOrder = 0
Text = 'sizious.bin'
end
end
object Button4: TButton
Left = 387
Top = 80
Width = 21
Height = 21
Caption = '...'
TabOrder = 6
OnClick = Button4Click
end
object OpenDialog1: TOpenDialog
DefaultExt = 'bin'
Filter = 'All Files (*.*)|*.*'
Options = [ofHideReadOnly, ofFileMustExist, ofEnableSizing]
Left = 344
Top = 12
end
object SaveDialog1: TSaveDialog
DefaultExt = 'bin'
Filter = 'All Files (*.*)|*.*'
Options = [ofOverwritePrompt, ofHideReadOnly, ofEnableSizing]
Left = 344
Top = 68
end
end
当然，请不要忘记将FastCopy.pas文件引用添加到该项目中。
你应该得到这样的：
选择源文件，目标文件然后点击开始。
所有学分当然去戴维兰德曼。
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- 24. 德尔福DBTree组件
- 25. 德尔福IRC组件
- 26. 德尔福7和事件
- 27. 德尔福：从总体进度的文件夹复制文件。 CopyFileEx？
- 28. 德尔福的德文字符集
- 29. 德尔福7编码修复文本文件
- 30. MemoryStream中的文件THandle（德尔福）
非常感谢你！ – 2009-01-13 10:10:13