The RECTL structure defines the coordinates of the upper-left and lower-right corners of a rectangle.
typedef struct _RECTL { // rcl
LONG left;
LONG top;
LONG right;
LONG bottom;
} RECTL;
When RECTL is passed to the FillRect function, the rectangle is filled up to, but not including, the right column and bottom row of pixels. This structure is identical to the RECT structure.
Windows NT: Requires version 3.1 or later.
Windows: Requires Windows 95 or later.
Windows CE: Unsupported.
Header: Declared in windef.h.
Metafiles Overview, Enhanced Metafile Structures, FillRect, RECT, SMALL_RECT