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IDvdControl::ForwardScan

  • 项目
 
Microsoft DirectShow 9.0

IDvdControl::ForwardScan

  • Note   The IDvdControl interface is deprecated. Use IDvdControl2 instread.

Searches forward through the current disc at the specified speed.

Syntax

  HRESULT ForwardScan(
    double dwSpeed
);

Parameters

dwSpeed

[in] Value that specifies how quickly DirectShow will search through the media file. This value is a multiplier, where 1.0 is the authored speed, so a value of 2.5 will search forward at two and one-half times the authored speed, while a value of 0.5 will search forward at half the authored speed. Note that the actual speed of playback depends on the capabilities of the video decoder, and might differ from the specified rate.

Return Value

Returns an HRESULT value.

Remarks

This method returns an error unless the domain is DVD_DOMAIN_VideoManagerMenu, DVD_DOMAIN_VideoTitleSetMenu, or DVD_DOMAIN_Title. For more information, see DVD_DOMAIN.

Requirements

Reference: Dshow.h.

Library: Quartz.dll.

See Also