Get/Set Alignment missing implementations on BMessage (easy)

[kallisti5]

​https://git.haiku-os.org/haiku/commit/?id=6e50e79e543 introduced GetAlignment / SetAlignment calls in the BMessage header, however nothing actually implements these within the application kit.

Discovered by trungnt2910.

[kallisti5]

A little further context, ​https://git.haiku-os.org/haiku/commit/?id=b1008df2c2007091bdda65b6dbb8ba9362ffbd09 introduced FindAlignment which is implemented correctly

These are all undocumented. ​https://www.haiku-os.org/legacy-docs/bebook/BMessage.html

[pulkomandy]

All we need is adding a

DEFINE_SET_GET_BY_REFERENCE_FUNCTIONS(BAlignment, Alignment, B_ALIGNMENT_TYPE);

So it seems easier to submit a patch than to create a ticket for it?

These are all undocumented. ​​https://www.haiku-os.org/legacy-docs/bebook/BMessage.html

They are Haiku extensions so they are documented in the Haiku book: ​https://www.haiku-os.org/docs/api/classBMessage.html#af7ad0b5467ac972bb5f400d48a37bec9

[X512]

Submitting patch is more difficult because it can't be done with web interface.

[waddlesplash]

Fixed in hrev57125.