I want to update some older OpenGL code to use hardware v3+ OpenGL. My current code is OpenGL v1.1 compatible and runs using the Microsoft software OpenGL DLLs.

In my current OpenGL code I replaced the old gl and glu uses calls with dglopengl, but still got v1.1 GLVERSION reported.

For the OpenGL init I use;


tbm is a tbitmap32 bitmap. DC is an HDC and RC is an HGLRC.

After those calls I use the usual/same glenable etc calls and draw objects between glbegin and glend pairs. The display works as expected, but it is no faster than using software OpenGL. I added a call to check GLVERSION and it returns 1.1.0?

How can I get the OpenGL code to initialize and use my GPU for faster OpenGL processing and display?

Thanks for any tips.

I also tried using CreateRenderingContextVersion I saw in dglOpengl. But even using v1.1, ie



Gives me the exception "Could not get function pointer address for wglCreateContextAttribsARB - OpenGL 3.x and above not supported" dglopengl line 20,000.

Hi GL123,

One issue of the OpenGL3+ API is, that it didn't solved the issue of using an own init function.
You need to create an old context, request the GL3+ init function as a kind of extension and then use this to create a GL3+ context, switch to it and destroy the GL1+ context.
C++ working code
This code comply with the specs and don't raise any warnings on the intel, nv, amd drivers.
NV allowed in the past to create a GL3+ context directly but this was not conform with the spec and didn't worked on AMD, Mesa and Intel which stay strict to specs.

edit:
I missed to mention the OpenGLGetProcAddress function.
You can find it here.
First check with the system specific function then as fallback ask the library.

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