Sizes of textures and stand-alone surfaces must be multiples of the
format's block size for DXTN formats. Since we create a texture for
everything (except in ddraw), this check also takes care of stand-alone
surfaces.

user32/tests: Test to show that SendMessage/PostMessage don't force caller activation context on window thread.

ddraw: Introduce a helper function for initializing a D3DDEVICEDESC structure from a D3DDEVICEDESC7 structure.

It's not necessarily clear to me that one is better than the other here, but
this is what we returned in the old GL fixed function implementation of the
D3D fixed function vertex pipe, and apparently EverQuest depends on this.

This fixes a regression introduced by commit 2014141a.

winemac: Add support for mouse-move and right- and middle-click events on systray icons in the Mac status bar.

The surfaces are already in WINED3D_POOL_MANAGED.

This is the ARB equivalent to e0494afa.

If the application actually wants to do 3D rendering on the primary surface,
it should set DDSCAPS_3DDEVICE as well.