Question on GDI vs GDI+

Graphics g = Graphics.FromImage(bm)



 g.FillRectangle(solidWhiteBrush, 0, 0, bm.Width, bm.Height);

 g.DrawString(AnnotationText, AnnotationFont, solidBlackBrush, new PointF(7f, 2f));

Here are my questions:

1)This is GDI+, correct?
(Running this on Windows 7)

2)What is the difference between GDI and GDI+?  Is the version of GDI tied to a particular OS?

3)Can the above code be optimized to run faster?

The intent of the code is to annotate an image with some text (a date stamp).
Tom KnowltonWeb developerAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Mike TomlinsonHigh School Computer Science, Computer Applications, and Mathematics TeachersCommented:
In a nutshell:
WinForms is based on GDI+, while WPF is based on DirectX.
GDI was used before XP, while GDI+ is used in XP and above.
*Vista and Win 7 actually use a completely different drawing system (The Desktop Window Manager) that buffers GDI+ into a composite image with DirectX to render the operating system.

So yes, and no.  Yes, you are using GDI+ to add text to your image.  But when it gets displayed on the screen it's actually using DirectX because you are running Win 7.

Don't think you can make the code much faster.

Instead of FillRectangle(), you can do this to paint your bitmap a solid color:


Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Tom KnowltonWeb developerAuthor Commented:
Is it possible to use or hook into WPF if I am running from inside a console app in C#?

Essentially, I have a console app (NO GUI) just running and it is annotating images using (at the moment) calls to GDI+.

I want to do the same thing in the console app, except I want to access either WPF or SharpDX libraries.  Again -- there is no GUI -- this is all done sight unseen.
Mike TomlinsonHigh School Computer Science, Computer Applications, and Mathematics TeachersCommented:
I'm not sure how you'd do it with WPF, but you can probably just add a REFERENCE to the Console app?
HTML5 and CSS3 Fundamentals

Build a website from the ground up by first learning the fundamentals of HTML5 and CSS3, the two popular programming languages used to present content online. HTML deals with fonts, colors, graphics, and hyperlinks, while CSS describes how HTML elements are to be displayed.

Tom KnowltonWeb developerAuthor Commented:
No idea either.
Tom KnowltonWeb developerAuthor Commented:
What do you know about SharpDX, Idle?
Mike TomlinsonHigh School Computer Science, Computer Applications, and Mathematics TeachersCommented:
Absolutely nothing, other than it wraps a bunch of DirectX stuff for you.  =\
Tom KnowltonWeb developerAuthor Commented:
That is about what I know, too.  :(

One way or another I am sure I'll figure this out.

I have a few other questions on this topic right now.  If you know any EE gurus on SharpDX please send them my way, okay?  Any C# / XNA / game developer types you are acquainted with might know about SharpDX.
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
.NET Programming

From novice to tech pro — start learning today.