TComponent与String的转换(得到控件的DFM格式的描述)
现看下面这两个方法,把一个TComponent做成String,再就是把String转成TComponent
function ComponentToStringProc(Component: TComponent): string; var BinStream:TMemoryStream; StrStream: TStringStream; s: string; begin BinStream := TMemoryStream.Create; // 创建内存流 try StrStream := TStringStream.Create(s); try BinStream.WriteComponent(Component); // 把控件描述写入内存 BinStream.Seek(0, soFromBeginning); // 重定位内存流 ObjectBinaryToText(BinStream, StrStream); // 把内存流的内容写到字符流 StrStream.Seek(0, soFromBeginning); // 重定位字符流 Result:= StrStream.DataString; // 取得字符流的所有结果 finally StrStream.Free; end; finally BinStream.Free end; end; function StringToComponentProc(Value: string): TComponent; var StrStream:TStringStream; BinStream: TMemoryStream; begin StrStream := TStringStream.Create(Value); // 字符流读取String try BinStream := TMemoryStream.Create; try ObjectTextToBinary(StrStream, BinStream); // 根据文字生成控件 BinStream.Seek(0, soFromBeginning); // 重定位内存流 Result:= BinStream.ReadComponent(nil); // 读取内存,返回作为一个控件使用 finally BinStream.Free; end; finally StrStream.Free; end; end;
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