procedure VertLine(X, Y1, Y2: Integer; Value: TColor32);
procedure VertLineS(X, Y1, Y2: Integer; Value: TColor32);
procedure VertLineT(X, Y1, Y2: Integer; Value: TColor32);
procedure VertLineTS(X, Y1, Y2: Integer; Value: TColor32);
procedure VertLineTSP(X, Y1, Y2: Integer);
Draws a vertical line from (X,Y1) to (X, Y2). The last point is included.
These functions works faster compared to Line. In versions with 'S' postfix necessary clipping to a bitmap coordinate range is provided. In versions without 'S', the Y2 value should be greater or equal to Y1.
VertLineTSP supports line patterns.