Windows apps
Collapse the table of content
Expand the table of content
Information
The topic you requested is included in another documentation set. For convenience, it's displayed below. Choose Switch to see the topic in its original location.

MFVideoNormalizedRect structure

Defines a normalized rectangle, which is used to specify sub-rectangles in a video rectangle. When a rectangle N is normalized relative to some other rectangle R, it means the following:

  • The coordinate (0.0, 0.0) on N is mapped to the upper-left corner of R.

  • The coordinate (1.0, 1.0) on N is mapped to the lower-right corner of R.

Any coordinates of N that fall outside the range [0...1] are mapped to positions outside the rectangle R. A normalized rectangle can be used to specify a region within a video rectangle without knowing the resolution or even the aspect ratio of the video. For example, the upper-left quadrant is defined as {0.0, 0.0, 0.5, 0.5}.

Syntax


typedef struct MFVideoNormalizedRect {
  float left;
  float top;
  float right;
  float bottom;
} MFVideoNormalizedRect;

Members

left

X-coordinate of the upper-left corner of the rectangle.

top

Y-coordinate of the upper-left corner of the rectangle.

right

X-coordinate of the lower-right corner of the rectangle.

bottom

Y-coordinate of the lower-right corner of the rectangle.

Requirements

Minimum supported client

Windows Vista [desktop apps | Windows Store apps]

Minimum supported server

Windows Server 2008 [desktop apps | Windows Store apps]

Header

Evr.h

See also

Media Foundation Structures

 

 

Show:
© 2016 Microsoft