Delphi Programming

2D drawing

2,919pages on
this wiki
Add New Page
Talk0 Share

Q 1) How do I create a transparent overlay with the VCLEdit

A) The standard VCL uses GDI which has no native support for transparency or antialiased drawing. You'll need to use an external library, such as:


or a commercial library such as

DtpDocuments at

You can also do transparent overlays using the GDI directly with the AlphaBlend() GDI function.

Q 2) How do I draw antialiased lines or shapesEdit

A) See the answer for question 1

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.

Also on Fandom

Random Wiki