TSampleGrabber;可以用来抓图
var
bmp: TBitmap;
CurrPos : Double;
MediaPosition: IMediaPosition;
SampleGrabber1: TSampleGrabber;
begin
if FilterGraph1.Active then
begin
FilterGraph1.QueryInterface(IMediaPosition, MediaPosition);
MediaPosition.get_CurrentPosition(CurrPos);
[Quote=引用 4 楼 meiqingsong 的回复:]
TSampleGrabber;可以用来抓图
var
bmp: TBitmap;
CurrPos : Double;
MediaPosition: IMediaPosition;
SampleGrabber1: TSampleGrabber;
begin
if FilterGraph1.Active then
begin
FilterGraph1.QueryInterface(IMediaPosition, MediaPosition);
MediaPosition.get_CurrentPosition(CurrPos);