我需要在运行时使用 TRichEdit 来执行 rtf 到文本的转换,如此处所述。我成功地做到了这一点,但如果不能填充 TRichedit.Lines,我必须将虚拟表单设置为父表单。(错误:缺少父级)。我在下面粘贴了我的功能,有人可以建议一种避免定义父母的方法吗?您能否对此发表评论并告诉我您是否找到了更高效的想法?
注意:我需要一个字符串,而不是 TStrings 作为输出,这就是它被设计成这样的原因。
function RtfToText(const RTF: string;ReplaceLineFeedWithSpace: Boolean): string;
var
RTFConverter: TRichEdit;
MyStringStream: TStringStream;
i: integer;
CustomLineFeed: string;
begin
if ReplaceLineFeedWithSpace then
CustomLineFeed := ' '
else
CustomLineFeed := #13;
try
RTFConverter := TRichEdit.Create(nil);
try
MyStringStream := TStringStream.Create(RTF);
RTFConverter.parent := Form4; // this is the part I don't like
RTFConverter.Lines.LoadFromStream(MyStringStream);
RTFConverter.PlainText := True;
for i := 0 to RTFConverter.Lines.Count - 1 do
begin
if i < RTFConverter.Lines.Count - 1 then
Result := Result + RTFConverter.Lines[i] + CustomLineFeed
else
Result := Result + RTFConverter.Lines[i];
end;
finally
MyStringStream.Free;
end;
finally
RTFConverter.Free;
end;
end;
更新:回答后我更新了函数并将其写在这里以供参考:
function RtfToText(const RTF: string;ReplaceLineFeedWithSpace: Boolean): string;
var
RTFConverter: TRichEdit;
MyStringStream: TStringStream;
begin
RTFConverter := TRichEdit.CreateParented(HWND_MESSAGE);
try
MyStringStream := TStringStream.Create(RTF);
try
RTFConverter.Lines.LoadFromStream(MyStringStream);
RTFConverter.PlainText := True;
RTFConverter.Lines.StrictDelimiter := True;
if ReplaceLineFeedWithSpace then
RTFConverter.Lines.Delimiter := ' '
else
RTFConverter.Lines.Delimiter := #13;
Result := RTFConverter.Lines.DelimitedText;
finally
MyStringStream.Free;
end;
finally
RTFConverter.Free;
end;
end;