memory bitmaps

OpenGL
1

dumb question…

i want to create a bitmap in memory, write some text on it, then upload it to opengl.

can anyone tell me how to do this?

many thanks!

mark

PS - i’m using windows

2

http://msdn.microsoft.com/
Search for

  • CreateCompatibleDC
  • CreateDIBitmap
  • SelectObject
  • FillRect
  • TextOut
  • GetDIBits

Create a memory DC, a device independent bitmap, fill it with your background color, select a font, write the text with text out, get the bits, use glTexImage2D.

Better search the internet for someone who did all that already.

3

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