procedure BezierTo(X1, Y1, X2, Y2, X3, Y3: Double)
Appends a cubic Bezier curve from the current point through control points (X1,Y1) and (X2,Y2) to (X3,Y3).
Compose rounded corners and arbitrary curves; matches PDF "c" operator semantics.
All edits to the current page are buffered in PDFium's in-memory representation. Call UpdatePage to refresh the rendering cache and SaveToFile to persist the changes.
Pdf1.Active must be True and a page must be selected before calling these primitives.
begin
if Pdf1.Active then
begin
Pdf1.MoveTo(100, 100);
Pdf1.LineTo(200, 150);
Pdf1.LineTo(200, 200);
Pdf1.ClosePath;
Pdf1.AddPath(clRed, 1.5, clYellow, fmWinding);
Pdf1.UpdatePage;
end;
end;