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Leland's patch for Win98, per audacity-devel thread "Re: [Audacity-devel] any more for under the wire for rc2?" on 2011-04-05

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This commit is contained in:
v.audacity 2011-04-06 03:00:04 +00:00
parent e73cd756d2
commit 4bde2be9c6
1 changed files with 40 additions and 6 deletions
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46
lib-src/portmixer/src/px_win_common.c
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@ -68,15 +68,40 @@ static void dprintf(const char *format, ...)
}
#endif
static BOOL is_vista_or_later()
// The VerSetConditionMask() function did not appear until Windows 2000,
// so check for it at runtime. However, post 2.0, this can be deleted
// since pre-Win2k support will be dropped.
#define VerSetConditionMask VerSetConditionMaskThunk
LONGLONG
VerSetConditionMaskThunk(ULONGLONG ConditionMask,
DWORD TypeMask,
BYTE Condition)
{
OSVERSIONINFOEX osvi;
DWORDLONG dwlConditionMask = 0;
int op=VER_GREATER_EQUAL;
// The VerifyVersionInfo() function did not appear until Windows 2000,
// so check for it at runtime. However, post 2.0, this can be dropped
// since pre-Win2k support will be dropped.
typedef BOOL (WINAPI *versetconditionask)(ULONGLONG ConditionMask,
DWORD TypeMask,
BYTE Condition);
versetconditionask vscm =
(versetconditionask) GetProcAddress(GetModuleHandle(TEXT("kernel32.dll")),
"VerSetConditionMask");
if (vscm == NULL) {
return 0;
}
return vscm(ConditionMask, TypeMask, Condition);
}
// The VerifyVersionInfo() function did not appear until Windows 2000,
// so check for it at runtime. However, post 2.0, this can be deleted
// since pre-Win2k support will be dropped.
#define VerifyVersionInfoA VerifyVersionInfoAThunk
BOOL
VerifyVersionInfoAThunk(LPOSVERSIONINFOEXA lpVersionInformation,
DWORD dwTypeMask,
DWORDLONG dwlConditionMask)
{
typedef BOOL (WINAPI *verifyversioninfo)(LPOSVERSIONINFOEXA lpVersionInformation,
DWORD dwTypeMask,
DWORDLONG dwlConditionMask);
@ -87,6 +112,15 @@ static BOOL is_vista_or_later()
return FALSE;
}
return vvi(lpVersionInformation, dwTypeMask, dwlConditionMask);
}
static BOOL is_vista_or_later()
{
OSVERSIONINFOEX osvi;
DWORDLONG dwlConditionMask = 0;
int op=VER_GREATER_EQUAL;
// Initialize the OSVERSIONINFOEX structure.
ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX));
@ -103,7 +137,7 @@ static BOOL is_vista_or_later()
// Perform the test.
return vvi(
return VerifyVersionInfo(
&osvi,
VER_MAJORVERSION | VER_MINORVERSION,
dwlConditionMask);