CORE-13951
MIDIMAP_LoadSettings and PlaySound:
Use RegOpenCurrentUser to access the appropriate HKEY_CURRENT_USER key.
This allows functions that use HKEY_CURRENT_USER to be called from system
processes while impersonating, for example: winlogon.
PlaySound:
- Open the correct registry key.
- Expand environment strings if registry value type is REG_EXPAND_SZ.
- Handle "SystemDefault" event and improve flags handling.
- Don't use proc_PlaySound as thread proc.
- Fix SND_ASYNC flag for system processes.
Move get_mmio* code out of proc_PlaySound to fix impersonation problem.
MSVC amd64
'...\dll\win32\winmm\midimap\midimap.c(474): warning C4133: 'function': incompatible types - from 'LPDWORD' to 'DWORD_PTR *''
Import missed parts of
29b00e1a8c
Addendum to b40e7f0 (r47900).
CORE-7538
There is no need to compile our DLLs as shared libraries since we are
managing symbols exports and imports through spec files.
On my system, this reduces the configure-time by a factor of two.
