Hi, Andrew,I am the asker above.
Firstly,I am sorry my English.
Secondly,I have other questions to ask you as following:
How can I use a video ActiveX ?
And is there any article about capturing video screenshots introduce to me ?
Is there not any API function can solve it?
Lastly,I am very thankful that you can help me.
You also can send the e-mail to firstname.lastname@example.org for me.