I suppose first you own Blitz3D SDK (update 102) and second you are familiar with the VisualC environment.
In the installation folder of the SDK there is a sub folder 'VisualC'. If you have installed your SDK in hard drive 'C' then the path is:
[C:\Blitz3DSDK_V102\VisualC]
Here you can find the visual C project named: 'applicationdemo.vcproj'
This project is a good start for coding in VisualC.
I never bother my self with the MAC platform so I can't answer to your question
In the installation folder of the SDK there is a sub folder 'VisualC'. If you have installed your SDK in hard drive 'C' then the path is:
[C:\Blitz3DSDK_V102\VisualC]
Here you can find the visual C project named: 'applicationdemo.vcproj'
This project is a good start for coding in VisualC.
I never bother my self with the MAC platform so I can't answer to your question