qedit.h (windows directshow dev)

vs编译时找不到qedit.h、streams.h， 安装windows sdk v6.1，在工程属性中编辑include目录，将windows sdk include和Samples\Multimedia\DirectShow\BaseClasses加入其中， 在include <qedit.h>前添加：

	#pragma include_alias( "dxtrans.h", "qedit.h" )

	#define __IDxtCompositor_INTERFACE_DEFINED__

	#define __IDxtAlphaSetter_INTERFACE_DEFINED__

	#define __IDxtJpeg_INTERFACE_DEFINED__

	#define __IDxtKey_INTERFACE_DEFINED__

	#pragma include_alias( "dxtrans.h", "qedit.h" )

	#define __IDxtCompositor_INTERFACE_DEFINED__

	#define __IDxtAlphaSetter_INTERFACE_DEFINED__

	#define __IDxtJpeg_INTERFACE_DEFINED__

	#define __IDxtKey_INTERFACE_DEFINED__