How is string from "..." different from string from a file ?

[ParticlePeter]

Thank you very much, you made my day, that was it :-)

Cheers, ParticlePeter !

> OpenGL probably wants a zero-terminated string. It works if you add the 
> code as a literal because string literals are zero-terminated.
> 
> string fragString = readText( "Shader.vert" ) ~ '\0';
> 
> Alternatively, you can embed the file in you executable:
> 
> immutable string fragString = import( "Shader.vert" ); // read at 
> compile time