Source code based #define isn’t available in C# like in C++.
You can’t use it to create macros. Bloody annoying, but get over it – you can’t! Instead, use constants.
See constants here
Example C# define usage
#if (!PLATFORM_IS_RPI && !DEBUG)
#endif
#if THIS_IS_RPI_APP
#elif THIS_IS_WIN32_INTERFACE_APP
#else
#endif#if DEBUG
See here.
How #define is used in C#
#define is only used to create something to test against (e.g. #if DEBUG #endif)
#define can only appear at the start of a file.
#define only has scope in the file it is defined in.
Global defines in C#
You can define for an entire project in Project Properties > Build > Conditional compilation symbols
You can then test those defines like this:
#if THIS_IS_RPI_APP
#elif THIS_IS_WIN32_INTERFACE_APP
#else
#endif
USEFUL?
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