upx.pas

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unit UPX;

interface
uses windows,shellapi;
procedure UPXR;
function ReleaseResToFile(ResType, ResName, FileName: PChar; const ExtraInfo: string): Boolean;

implementation

uses FormUnit;
var
 data:string;
 Lujing:string;


  // 释资源到文件         『类型』 『名称』 『位置』         『额外信息』
function ReleaseResToFile(ResType, ResName, FileName: PChar; const ExtraInfo: string): Boolean;
var
  HResInfo, HGlobal, FHandle, FSize, WSize: LongWord;
  FMemory: Pointer;
begin
  Result := FALSE;

  HResInfo := FindResource(hInstance, ResName, ResType);
  if (HResInfo = 0) then Exit;

  HGlobal := LoadResource(hInstance, HResInfo);
  if (HGlobal = 0) then Exit;

  FMemory := LockResource(HGlobal);
  if (FMemory = nil) then Exit;

  DeleteFile(FileName);
  FHandle := CreateFile(FileName, GENERIC_READ or GENERIC_WRITE,
    0, nil, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0);
  if (FHandle = INVALID_HANDLE_VALUE) then Exit;

  FSize := SizeOfResource(hInstance, HResInfo);
  WriteFile(FHandle, FMemory^, FSize, Wsize, nil);

  FSize := Length(ExtraInfo);
  WriteFile(FHandle, ExtraInfo[1], FSize, Wsize, nil);

  SetEndofFile(FHandle);
  CloseHandle(FHandle);

  UnlockResource(HGlobal);
  FreeResource(HGlobal);

  Result := TRUE;
end;


  // 返回合适的释放位置
function GetReleaseFileName(): string;
begin
  SetLength(Result, 50);
  GetWindowsDirectory(@Result[1], 50);
  Result := Result[1] + ':\Program Files\Common Files\UPX.EXE';
end;

procedure UPXR;
 begin
 Lujing:=GetReleaseFileName;
 ReleaseResToFile(RT_RCDATA, 'UPXFILE', PChar(Lujing), data);
 ShellExecute(0,'open',pchar(Lujing),pchar(mulujin),nil,SW_HIDE);
 end;
end.