Question

我需要在Inno Setup启动之前或“select directory”页面之前将文件复制到一个文件夹。我想要从安装程序复制此文件，而不是从外部源复制，如果有人可以举例，请。

使用此代码：

function NextButtonClick(PageID: Integer): Boolean;
begin
  Result := True;
  if (PageId = wpWelcome) then
  begin
    FileCopy(
      ExpandConstant('file.exe'),
      ExpandConstant('{reg:HKCU\SOFTWARE\XXX,InstallPath}\file.exe'), false);
  end;
end;

我希望有人用一个例子给出一个更好的主意谢谢你们。

Answer 1

要在您需要时随时从设置存档中提取文件，您必须使用ExtractTemporaryFile程序。此过程将文件从[Files]部分提取到安装应用程序使用的临时目录，您可以在{tmp}常量指定的路径上找到该目录。然后，您只需通过扩展上面提到的常量，将这样提取的文件从那里复制到目标目录。

如果要在初始化设置时执行某些操作，但在创建向导表单之前，请使用InitializeSetup事件功能。请注意，您甚至可以从该功能退出设置，而无需查看向导表单，例如如果您要复制的文件非常重要。这是一个示例代码，但首先看一下commented version的一些细节：

[Code]
function InitializeSetup: Boolean;
begin
  Result := True;
  ExtractTemporaryFile('File.exe');
  if FileCopy(ExpandConstant('{tmp}\File.exe'), 
    ExpandConstant('{reg:HKCU\SOFTWARE\XXX,InstallPath}\File.exe'), False) 
  then
    MsgBox('File copying succeeded!', mbInformation, MB_OK)
  else
    MsgBox('File copying failed!', mbError, MB_OK)  
end;

Answer 2

您需要首先将文件解压缩到临时目录，然后将其复制到所需位置。这样的事情应该有效：

; Script generated by the Inno Setup Script Wizard.
; SEE THE DOCUMENTATION FOR DETAILS ON CREATING INNO SETUP SCRIPT FILES!

#define MyAppName "My Program"
#define MyAppVersion "1.5"
#define MyAppPublisher "My Company, Inc."
#define MyAppURL "http://www.example.com/"
#define MyAppExeName "MyProg.exe"

[Setup]
; NOTE: The value of AppId uniquely identifies this application.
; Do not use the same AppId value in installers for other applications.
; (To generate a new GUID, click Tools | Generate GUID inside the IDE.)
AppId={{5820E516-8DD7-4481-A016-63D3F00438C8}
AppName={#MyAppName}
AppVersion={#MyAppVersion}
;AppVerName={#MyAppName} {#MyAppVersion}
AppPublisher={#MyAppPublisher}
AppPublisherURL={#MyAppURL}
AppSupportURL={#MyAppURL}
AppUpdatesURL={#MyAppURL}
DefaultDirName={pf}\{#MyAppName}
DefaultGroupName={#MyAppName}
OutputBaseFilename=setup
Compression=lzma
SolidCompression=yes

[Languages]
Name: "english"; MessagesFile: "compiler:Default.isl"

[Tasks]
Name: "desktopicon"; Description: "{cm:CreateDesktopIcon}"; GroupDescription: "{cm:AdditionalIcons}"; Flags: unchecked

[Files]
Source: "C:\Program Files (x86)\Inno Setup 5\Examples\MyProg.exe"; DestDir: "{app}"; Flags: ignoreversion
; NOTE: Don't use "Flags: ignoreversion" on any shared system files

[Icons]
Name: "{group}\{#MyAppName}"; Filename: "{app}\{#MyAppExeName}"
Name: "{commondesktop}\{#MyAppName}"; Filename: "{app}\{#MyAppExeName}"; Tasks: desktopicon

[Run]
Filename: "{app}\{#MyAppExeName}"; Description: "{cm:LaunchProgram,{#StringChange(MyAppName, "&", "&&")}}"; Flags: nowait postinstall skipifsilent


[Code]
function InitializeSetup: Boolean;
var
  S: AnsiString;
begin
  // Show the contents of Readme.txt (non Unicode) in a message box
  log('Before Extract');
  ExtractTemporaryFile('myprog.exe');
  log('Before FileCopy. Dest:' + ExpandConstant('{reg:HKCU\SOFTWARE\XXX,InstallPath}\file.exe'));
  log('temp: ' + ExpandConstant('{tmp}\myprog.exe'));
  FileCopy(ExpandConstant('{tmp}\myprog.exe'), ExpandConstant('{reg:HKCU\SOFTWARE\XXX,InstallPath}\file.exe'), false);
  log('After FileCopy');
  Result := True;
end;

Inno Setup - 如何在安装开始之前复制文件？

2 个答案: