Is TDirect2DCanvas slow or am I doing something wrong?

Question

While looking for alternatives to replace GDI, I was trying to test Delphi\'s 2010 TDirect2DCanvas performance in Windows 7.

I tested it by drawing a huge polyl

Answer 1

What about GDI+ speed, in comparison?

We wrote a free/open source unit, able to render any VCL TCanvas content (using a TMetaFile) using the GDI+ engine.

In practice, performance is very good, and anti-aliaising was on... We use this in several projects, drawing regular components content into a bitmap, then using this bitmap for drawing the form content on screen (this will avoid any flicker problem). And with anti-aliaising, marketing people were happy about the result, and other programmers (using C# or WPF) were wondering how it was working: the drawing is very fast and the applications are reactive (like well built Delphi apps), use very little memory, and the result on screen looks modern (especially if you use Calibri or such fonts if available on your system).

See http://synopse.info/forum/viewtopic.php?id=10

It will work with any version of Delphi (from Delphi 6 up to Delphi XE), and will work on any version of Windows (XP, Vista, Seven - need to deploy the standard gdiplus.dll with previous OS).

Our unit uses pascal code for the GDI to GDI+ conversion on XP, and native Microsoft hidden API under Vista, Seven or if Office 2003/2007 is installed on the PC.