how to Ignore definitions (VS2008)

Question

Hi, i have some sourcecode that I want to compile with VS2008 but there are many errors i have to fix. Now there are some Enums like:

enum
{
BACKGROUND  = 0x00000001,
WEAPON      = 0x00000002,
TRANSPARENT = 0x00000004
}

The problem is that TRANSPARENT is defined as:

#define TRANSPARENT         1

in WinGDI.h

That will cause a compile error like:

error C2143: syntax error : missing '}' before 'constant'

Is it possible to fix that error without renaming the field in the enum and without removing the WinGDI.h from the includes (I don't know where it's included..)

Answer 1

If you are not using the value TRANSPARENT from WinGDI.h, you can simply add:

#undef TRANSPARENT

before the enum (this is only a workaround, better rename the TRANSPARENT in the enum).

Answer 2

You can use

#undef TRANSPARENT

but that may cause errors elsewhere, if the WinGDI TRANSPARENT is used afterwards. A (messy) workaround could be:

#ifdef TRANSPARENT
#define _TRANSPARENT TRANSPARENT
#undef TRANSPARENT
#endif

and after your code:

#ifdef _TRANSPARENT
#define TRANSPARENT _TRANSPARENT
#endif