windef.h header

This header is used by multiple technologies. For more information, see:

• Display Devices Reference
• High DPI
• Windows Accessibility Features
• Windows and Messages
• Windows GDI

windef.h contains the following programming interfaces:

Structures

POINT The POINT structure defines the x- and y-coordinates of a point.
POINTL The POINTL structure defines the x- and y-coordinates of a point.
POINTS The POINTS structure defines the x- and y-coordinates of a point.
RECT The RECT structure defines a rectangle by the coordinates of its upper-left and lower-right corners.
RECTL The RECTL structure defines a rectangle by the coordinates of its upper-left and lower-right corners.
SIZE The SIZE structure defines the width and height of a rectangle.

Enumerations

DPI_AWARENESS Identifies the dots per inch (dpi) setting for a thread, process, or window.
DPI_HOSTING_BEHAVIOR Identifies the DPI hosting behavior for a window. This behavior allows windows created in the thread to host child windows with a different DPI_AWARENESS_CONTEXT.