The SIZE structure specifies the width and height of a rectangle.
typedef struct tagSIZE { // siz LONG cx; LONG cy; } SIZE;
The rectangle dimensions stored in this structure may correspond to viewport extents, window extents, text extents, bitmap dimensions, or the aspect-ratio filter for some extended functions.
GetAspectRatioFilterEx, GetBitmapDimensionEx, GetTextExtentPoint32, GetViewportExtEx, GetWindowExtEx, ScaleViewportExtEx, ScaleWindowExtEx, SetBitmapDimensionEx, SetViewportExtEx, SetWindowExtEx