STR #3535

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STR #3535

Application:FLTK Library
Status:1 - Closed w/Resolution
Priority:4 - High, e.g. key functionality not working
Scope:2 - Specific to an operating system
Subsystem:None
Summary:OpenGL context gets confused on Mac
Version:1.4.0
Created By:vigmond
Assigned To:AlbrechtS
Fix Version:None
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Trouble Report Files:

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Trouble Report Comments:


Name/Time/Date Text top right image
 
#1 vigmond
07:45 May 19, 2020
I have a subclassed FL_GL_Window into which I draw, and things works well until I open another FL_GL_Window. The context of the second window is NULL, as returned by context(). The viewport of the first window becomes that of the second window (that is, a small rectangle in the lower left corner which is the size of the second window). 

It runs without this issue on Linux. I am using FL_OPENGL3 since I am need shaders.

The software is available should you feel inclined:
https://git.opencarp.org/openCARP/meshalyzer/tree/VBO

Cheers
 
 
#2 vigmond
12:28 May 19, 2020
Please ignore this. I found thew issue. I forgot to declare all windows FL_OPENGL3. It works fine.  
 
#3 AlbrechtS
14:08 May 24, 2020
Closed on OP's request.  
bottom left image   bottom right image

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