我在设计的时候出现了这么一个问题,看看那位高手能帮我解决这个问题啊,我在用流的时候出现了不能create文件的问题,原程序是:
procedure TForm1.DBImage1Click(Sender: TObject);
var
filestream:tmemorystream ;
begin
filestream:=tmemorystream.create;
(table1.fieldbyname('AVIÎļþ') as tblobfield).savetostream(filestream);
filestream.savetofile('d:/a.avi');
mediaplayer1.FileName:='d:/a.avi';
mediaplayer1.DeviceType:=dtavivideo;
mediaplayer1.Open;
filestream.free;
end;
procedure TForm1.DBImage1Click(Sender: TObject);
var
filestream:tmemorystream ;
begin
filestream:=tmemorystream.create;
(table1.fieldbyname('AVIÎļþ') as tblobfield).savetostream(filestream);
filestream.savetofile('d:/a.avi');
mediaplayer1.FileName:='d:/a.avi';
mediaplayer1.DeviceType:=dtavivideo;
mediaplayer1.Open;
filestream.free;
end;
解决方案 »
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