InvalidPoint
Check whether a point is invalid.
Declaration
Source position: classesh.inc line 2368
function InvalidPoint(X: Integer; Y: Integer) : Boolean;
function InvalidPoint(const At: TPoint) : Boolean;
function InvalidPoint(const At: TSmallPoint) : Boolean;
Description
InvalidPoint returns True if the X and Y coordinates (of the TPoint or TSmallPoint records, if one of these versions is used) are -1.
See also
Name | Description |
---|---|
PointsEqual | Check whether two TPoint variables are equal. |
TPoint | Special type to handle a fake TComponent position |
TSmallPoint | Type to describe point in a small plane. |