static UnsafeNativeMethods()
{
// This static contructor was added to make sure we load the proper version of Penimc.dll.
//
// Details:
// P/invoke will use LoadLibrary to load penimc.dll and it will check the current
// application directory before checking the system32 directory where this DLL
// is installed to. If penimc.dll happens to be in the application directory as well
// as the system32 directory we'll actually end up loaded two versions of
// penimc.dll. One that we'd use for P/invokes and one that we'd use for COM.
// If this happens then our Stylus code will fail since it relies on both P/invoke and COM
// calls to talk to penimc.dll and it requires just one instance of this DLL to work.
//
// DDVSO:474688
// We cannot rely on COM to load PenIMC. The CoCreate call can re-enter, potentially deadlocking.
//
// 1) CoCreate is COM Pumped and re-enters off of an EnableCore call
// 2) Message for, say, device changed or tablet added is received.
// 3) Work is sent to the PenThread and the UI thread waits on it
// 4) PenThread accesses MS.Win32.Penimc.UnsafeNativeMethods
//
// At this point, the static constructor has not finished and the CLR blocks the PenThread on the
// completion of the constructor. However, the UI thread cannot complete the constructor call until
// the PenThread returns.
//
// Instead, use LoadLibrary with a full path here to ensure it won't load local binaries and we don't re-enter.
WpfLibraryLoader.EnsureLoaded(ExternDll.Penimc);
}
static OSVersionHelper()
{
WpfLibraryLoader.EnsureLoaded(MS.Win32.ExternDll.PresentationNativeDll);
IsOsWindows10RS5OrGreater = IsWindows10RS5OrGreater();
IsOsWindows10RS3OrGreater = IsWindows10RS3OrGreater();
IsOsWindows10RS2OrGreater = IsWindows10RS2OrGreater();
IsOsWindows10RS1OrGreater = IsWindows10RS1OrGreater();
IsOsWindows10TH2OrGreater = IsWindows10TH2OrGreater();
IsOsWindows10TH1OrGreater = IsWindows10TH1OrGreater();
IsOsWindows10OrGreater = IsWindows10OrGreater();
IsOsWindows8Point1OrGreater = IsWindows8Point1OrGreater();
IsOsWindows8OrGreater = IsWindows8OrGreater();
IsOsWindows7SP1OrGreater = IsWindows7SP1OrGreater();
IsOsWindows7OrGreater = IsWindows7OrGreater();
IsOsWindowsVistaSP2OrGreater = IsWindowsVistaSP2OrGreater();
IsOsWindowsVistaSP1OrGreater = IsWindowsVistaSP1OrGreater();
IsOsWindowsVistaOrGreater = IsWindowsVistaOrGreater();
IsOsWindowsXPSP3OrGreater = IsWindowsXPSP3OrGreater();
IsOsWindowsXPSP2OrGreater = IsWindowsXPSP2OrGreater();
IsOsWindowsXPSP1OrGreater = IsWindowsXPSP1OrGreater();
IsOsWindowsXPOrGreater = IsWindowsXPOrGreater();
IsOsWindowsServer = IsWindowsServer();
}
static OSVersionHelper()
{
WpfLibraryLoader.EnsureLoaded("PresentationNative_v0400.dll");
OSVersionHelper.IsOsWindows10RS5OrGreater = OSVersionHelper.IsWindows10RS5OrGreater();
OSVersionHelper.IsOsWindows10RS3OrGreater = OSVersionHelper.IsWindows10RS3OrGreater();
OSVersionHelper.IsOsWindows10RS2OrGreater = OSVersionHelper.IsWindows10RS2OrGreater();
OSVersionHelper.IsOsWindows10RS1OrGreater = OSVersionHelper.IsWindows10RS1OrGreater();
OSVersionHelper.IsOsWindows10TH2OrGreater = OSVersionHelper.IsWindows10TH2OrGreater();
OSVersionHelper.IsOsWindows10TH1OrGreater = OSVersionHelper.IsWindows10TH1OrGreater();
OSVersionHelper.IsOsWindows10OrGreater = OSVersionHelper.IsWindows10OrGreater();
OSVersionHelper.IsOsWindows8Point1OrGreater = OSVersionHelper.IsWindows8Point1OrGreater();
OSVersionHelper.IsOsWindows8OrGreater = OSVersionHelper.IsWindows8OrGreater();
OSVersionHelper.IsOsWindows7SP1OrGreater = OSVersionHelper.IsWindows7SP1OrGreater();
OSVersionHelper.IsOsWindows7OrGreater = OSVersionHelper.IsWindows7OrGreater();
OSVersionHelper.IsOsWindowsVistaSP2OrGreater = OSVersionHelper.IsWindowsVistaSP2OrGreater();
OSVersionHelper.IsOsWindowsVistaSP1OrGreater = OSVersionHelper.IsWindowsVistaSP1OrGreater();
OSVersionHelper.IsOsWindowsVistaOrGreater = OSVersionHelper.IsWindowsVistaOrGreater();
OSVersionHelper.IsOsWindowsXPSP3OrGreater = OSVersionHelper.IsWindowsXPSP3OrGreater();
OSVersionHelper.IsOsWindowsXPSP2OrGreater = OSVersionHelper.IsWindowsXPSP2OrGreater();
OSVersionHelper.IsOsWindowsXPSP1OrGreater = OSVersionHelper.IsWindowsXPSP1OrGreater();
OSVersionHelper.IsOsWindowsXPOrGreater = OSVersionHelper.IsWindowsXPOrGreater();
OSVersionHelper.IsOsWindowsServer = OSVersionHelper.IsWindowsServer();
}
static NativeMethodsSetLastError()
{
// load the installed version of native DLLs, so that P/Invokes call the right methods
WpfLibraryLoader.EnsureLoaded(PresentationNativeDll);
}
