System.Types.IsRectEmpty
Delphi
function IsRectEmpty(const Rect: TRect): Boolean;
function IsRectEmpty(const Rect: TRectF): Boolean;
C++
extern DELPHI_PACKAGE bool __fastcall IsRectEmpty(const TRect &Rect)/* overload */;
Properties
| Type | Visibility | Source | Unit | Parent |
|---|---|---|---|---|
| function | public | System.Types.pas System.Types.hpp |
System.Types | System.Types |
Description
Indicates whether a specified rectangle has a positive width and height.
Call IsRectEmpty to determine whether the rectangle specified by Rect encloses a positive amount of space.
IsRectEmpty returns False if both the width and height of Rect are greater than 0. If either the width or height is less than or equal to 0, IsRectEmpty returns True. Note that this means non-normalized rectangles (rectangles with negative height or width) are considered empty.