update xlib.api.win32

xlib/api/win32/d3d12/structs.py

@@ -0,0 +1,40 @@
+from ctypes import c_uint, c_int, Structure
+
+class D3D_FEATURE_LEVEL(c_uint):
+    D3D_FEATURE_LEVEL_1_0_CORE	= 0x1000
+    D3D_FEATURE_LEVEL_9_1	= 0x9100
+    D3D_FEATURE_LEVEL_9_2	= 0x9200
+    D3D_FEATURE_LEVEL_9_3	= 0x9300
+    D3D_FEATURE_LEVEL_10_0	= 0xa000
+    D3D_FEATURE_LEVEL_10_1	= 0xa100
+    D3D_FEATURE_LEVEL_11_0	= 0xb000
+    D3D_FEATURE_LEVEL_11_1	= 0xb100
+    D3D_FEATURE_LEVEL_12_0	= 0xc000
+    D3D_FEATURE_LEVEL_12_1	= 0xc100
+
+class D3D12_COMMAND_LIST_TYPE(c_uint):
+    D3D12_COMMAND_LIST_TYPE_DIRECT	= 0
+    D3D12_COMMAND_LIST_TYPE_BUNDLE	= 1
+    D3D12_COMMAND_LIST_TYPE_COMPUTE	= 2
+    D3D12_COMMAND_LIST_TYPE_COPY	= 3
+    D3D12_COMMAND_LIST_TYPE_VIDEO_DECODE	= 4
+    D3D12_COMMAND_LIST_TYPE_VIDEO_PROCESS	= 5
+    D3D12_COMMAND_LIST_TYPE_VIDEO_ENCODE	= 6
+
+class D3D12_COMMAND_QUEUE_FLAGS(c_uint):
+    D3D12_COMMAND_QUEUE_FLAG_NONE = 0
+    D3D12_COMMAND_QUEUE_FLAG_DISABLE_GPU_TIMEOUT = 0x1
+
+
+class D3D12_COMMAND_QUEUE_DESC(Structure):
+    _fields_ = [('Type', D3D12_COMMAND_LIST_TYPE),
+                ('Priority', c_int),
+                ('Flags', D3D12_COMMAND_QUEUE_FLAGS),
+                ('NodeMask', c_uint),
+               ]
+
+    def __init__(self):
+        self.Type : D3D12_COMMAND_LIST_TYPE = D3D12_COMMAND_LIST_TYPE()
+        self.Priority : c_int = c_int()
+        self.Flags : D3D12_COMMAND_QUEUE_FLAGS = D3D12_COMMAND_QUEUE_FLAGS()
+        self.NodeMask : c_uint = c_uint()

xlib/api/win32/dshow/__init__.py

@@ -0,0 +1 @@
+from .helper import get_video_input_devices_names

xlib/api/win32/dshow/helper.py

@@ -0,0 +1,40 @@
+from typing import List
+from .. import ole32, uuids, strmif, wintypes, objidl, oaidl
+
+
+
+def get_video_input_devices_names() -> List[str]:
+    """
+    returns a list of available names of VideoInputDevice's
+
+    ole32 should be initialized before use
+    """
+    # based on https://docs.microsoft.com/ru-ru/windows/win32/directshow/selecting-a-capture-device
+
+    names = []
+    sys_dev_enum = strmif.ICreateDevEnum()
+    if ole32.CoCreateInstance(uuids.CLSID_SystemDeviceEnum, None, ole32.CLSCTX.CLSCTX_INPROC_SERVER, strmif.ICreateDevEnum.IID, sys_dev_enum) == wintypes.ERROR.SUCCESS:
+        pEnumCat = objidl.IEnumMoniker()
+
+        if sys_dev_enum.CreateClassEnumerator(uuids.CLSID_VideoInputDeviceCategory, pEnumCat, 0) == wintypes.ERROR.SUCCESS:
+
+            moniker = objidl.IMoniker()
+
+            while pEnumCat.Next(1, moniker, None) == wintypes.ERROR.SUCCESS:
+
+                prop_bag = oaidl.IPropertyBag()
+                if moniker.BindToStorage(None, None, oaidl.IPropertyBag.IID, prop_bag) == wintypes.ERROR.SUCCESS:
+                    var = wintypes.VARIANT()
+
+                    hr = prop_bag.Read(wintypes.LPCOLESTR('Description'), var, None )
+                    if hr != wintypes.ERROR.SUCCESS:
+                        hr = prop_bag.Read(wintypes.LPCOLESTR('FriendlyName'), var, None )
+
+                    names.append(var.value.bstrVal.value if hr == wintypes.ERROR.SUCCESS else 'unnamed')
+
+                    prop_bag.Release()
+                moniker.Release()
+            pEnumCat.Release()
+        sys_dev_enum.Release()
+
+    return names

xlib/api/win32/dxgi/dxgi.py

@@ -1,13 +1,13 @@
-from ctypes import (POINTER, WINFUNCTYPE, byref, c_byte, c_int64, c_longlong,
-                    c_size_t, c_ubyte, c_uint, c_uint32, c_ulong, c_void_p,
-                    c_wchar)
-from typing import List, Union
+from ctypes import POINTER, c_longlong, c_uint, c_void_p
+from typing import Union
+
 from xlib.api.win32.wintypes.wintypes import BOOL
 
-from ..wintypes import (ERROR, GUID, HRESULT, REFGUID, REFIID, IUnknown, dll_import,
-                     interface)
+from ..wintypes import (ERROR, GUID, HRESULT, REFGUID, REFIID, IUnknown,
+                        dll_import, interface)
 from .structs import *
 
+
 @interface
 class IDXGIObject(IUnknown):
     def SetPrivateData          (self, guid : REFGUID, id : c_uint, data : c_void_p) -> HRESULT: ...

xlib/api/win32/kernel32/kernel32.py

@@ -33,6 +33,6 @@ def SetPriorityClass(hProcess : HANDLE, priority_class : DWORD ) -> BOOL: ...
 def WaitForSingleObject(hHandle : HANDLE, dwMilliseconds : DWORD) -> DWORD:...
 
 @dll_import('kernel32')
-def Sleep( dwMilliseconds : DWORD):...
+def Sleep( dwMilliseconds : DWORD) -> None:...
 
 

xlib/api/win32/oaidl/__init__.py

@@ -0,0 +1 @@
+from .oaidl import IPropertyBag, IErrorLog

xlib/api/win32/oaidl/oaidl.py

@@ -0,0 +1,14 @@
+from ctypes import POINTER, c_void_p, c_wchar_p
+from ..wintypes import (GUID, DWORD, IUnknown, interface, VARIANT, HRESULT, LPCOLESTR)
+
+
+@interface
+class IErrorLog(IUnknown):
+    def AddError(self, pszPropName : LPCOLESTR, pExcepInfo : c_void_p) -> HRESULT: ... #EXCEPINFO
+    IID = GUID('3127ca40-446e-11ce-8135-00aa004bb851')
+
+@interface
+class IPropertyBag(IUnknown):
+    def Read(self, pszPropName : LPCOLESTR, pVar : POINTER(VARIANT), pErrorLog : IErrorLog) -> HRESULT: ...
+    def Write(self, pszPropName : LPCOLESTR, pVar : POINTER(VARIANT)) -> HRESULT: ...
+    IID = GUID('55272a00-42cb-11ce-8135-00aa004bb851')

xlib/api/win32/objidl/__init__.py

@@ -0,0 +1 @@
+from .objidl import IEnumMoniker, IMoniker, IPersistStream, IPersist, IStream

xlib/api/win32/objidl/objidl.py

@@ -0,0 +1,107 @@
+from ctypes import POINTER, c_void_p
+from ..wintypes import (GUID, DWORD, IUnknown, CLSID, interface, HRESULT, REFIID, BOOL, ULARGE_INTEGER)
+
+@interface
+class IStream(IUnknown):  #ISequentialStream
+    IID = GUID('0000000c-0000-0000-c000-000000000046')
+
+
+@interface
+class IPersist(IUnknown):
+    def GetClassID(self, pClassID : POINTER(CLSID) ) -> HRESULT: ...
+    IID = GUID('0000010c-0000-0000-c000-000000000046')
+
+@interface
+class IPersistStream(IPersist):
+    def IsDirty(self) -> HRESULT: ...
+    def Load(self, pStm : IStream) -> HRESULT: ...
+    def Save(self, pStm : IStream, fClearDirty : BOOL) -> HRESULT: ...
+    def GetSizeMax(self, pcbSize : POINTER(ULARGE_INTEGER) ) -> HRESULT: ...
+    IID = GUID('00000109-0000-0000-c000-000000000046')
+
+@interface
+class IMoniker(IPersistStream):
+
+    def BindToObject(self,
+        pbc : c_void_p, #IBindCtx
+        pmkToLeft : IUnknown, #IMoniker,
+        riidResult : REFIID,
+        ppvResult : POINTER(c_void_p))  -> HRESULT: ...
+
+    def BindToStorage(self,
+        pbc : c_void_p, #IBindCtx
+        pmkToLeft : IUnknown, #IMoniker,
+        riid : REFIID,
+        ppvObj : POINTER(c_void_p))  -> HRESULT: ...
+
+    # virtual HRESULT STDMETHODCALLTYPE Reduce(
+    #     IBindCtx *pbc,
+    #     DWORD dwReduceHowFar,
+    #     IMoniker **ppmkToLeft,
+    #     IMoniker **ppmkReduced) = 0;
+
+    # virtual HRESULT STDMETHODCALLTYPE ComposeWith(
+    #     IMoniker *pmkRight,
+    #     WINBOOL fOnlyIfNotGeneric,
+    #     IMoniker **ppmkComposite) = 0;
+
+    # virtual HRESULT STDMETHODCALLTYPE Enum(
+    #     WINBOOL fForward,
+    #     IEnumMoniker **ppenumMoniker) = 0;
+
+    # virtual HRESULT STDMETHODCALLTYPE IsEqual(
+    #     IMoniker *pmkOtherMoniker) = 0;
+
+    # virtual HRESULT STDMETHODCALLTYPE Hash(
+    #     DWORD *pdwHash) = 0;
+
+    # virtual HRESULT STDMETHODCALLTYPE IsRunning(
+    #     IBindCtx *pbc,
+    #     IMoniker *pmkToLeft,
+    #     IMoniker *pmkNewlyRunning) = 0;
+
+    # virtual HRESULT STDMETHODCALLTYPE GetTimeOfLastChange(
+    #     IBindCtx *pbc,
+    #     IMoniker *pmkToLeft,
+    #     FILETIME *pFileTime) = 0;
+
+    # virtual HRESULT STDMETHODCALLTYPE Inverse(
+    #     IMoniker **ppmk) = 0;
+
+    # virtual HRESULT STDMETHODCALLTYPE CommonPrefixWith(
+    #     IMoniker *pmkOther,
+    #     IMoniker **ppmkPrefix) = 0;
+
+    # virtual HRESULT STDMETHODCALLTYPE RelativePathTo(
+    #     IMoniker *pmkOther,
+    #     IMoniker **ppmkRelPath) = 0;
+
+    # virtual HRESULT STDMETHODCALLTYPE GetDisplayName(
+    #     IBindCtx *pbc,
+    #     IMoniker *pmkToLeft,
+    #     LPOLESTR *ppszDisplayName) = 0;
+
+    # virtual HRESULT STDMETHODCALLTYPE ParseDisplayName(
+    #     IBindCtx *pbc,
+    #     IMoniker *pmkToLeft,
+    #     LPOLESTR pszDisplayName,
+    #     ULONG *pchEaten,
+    #     IMoniker **ppmkOut) = 0;
+
+    # virtual HRESULT STDMETHODCALLTYPE IsSystemMoniker(
+    #     DWORD *pdwMksys) = 0;
+
+    IID = GUID('0000000f-0000-0000-c000-000000000046')
+
+
+@interface
+class IEnumMoniker(IUnknown):
+    #def CreateClassEnumerator(refiid : REFIID, enumMoniker : POINTER(IEnumMoniker), flags : DWORD ) -> HRESULT: ...
+
+    def Next(self, celt : DWORD, rgelt : POINTER(IMoniker), pceltFetched : POINTER(DWORD)) -> HRESULT: ...
+
+    #virtual HRESULT STDMETHODCALLTYPE Skip(ULONG celt) = 0;
+    #virtual HRESULT STDMETHODCALLTYPE Reset() = 0;
+    #virtual HRESULT STDMETHODCALLTYPE Clone(IEnumMoniker **ppenum) = 0;
+
+    IID = GUID('00000102-0000-0000-C000-000000000046')

xlib/api/win32/ole32/__init__.py

@@ -0,0 +1 @@
+from .ole32 import CoInitializeEx, COINIT, CLSCTX, CoCreateInstance, CoUninitialize

xlib/api/win32/ole32/ole32.py

@@ -0,0 +1,18 @@
+from ctypes import (POINTER, WINFUNCTYPE, byref, c_byte, c_int64, c_longlong,
+                    c_size_t, c_ubyte, c_uint, c_uint32, c_ulong, c_void_p,
+                    c_wchar)
+from typing import Union
+
+from ..wintypes import (DWORD, ERROR, GUID, HRESULT, REFCLSID, REFGUID, REFIID,
+                        IUnknown, dll_import, interface)
+from .structs import *
+
+
+@dll_import('ole32')
+def CoInitializeEx(pvReserved : c_void_p, dwCoInit : COINIT ) -> HRESULT: ...
+
+@dll_import('ole32')
+def CoUninitialize() -> None: ...
+
+@dll_import('ole32')
+def CoCreateInstance (rclsid : REFCLSID, pUnkOuter : POINTER(IUnknown), dwClsContext : CLSCTX, refiid : REFIID, ppv : POINTER(IUnknown) ) -> HRESULT: ...

xlib/api/win32/ole32/structs.py

@@ -0,0 +1,36 @@
+from ..wintypes import DWORD
+
+class COINIT(DWORD):
+    APARTMENTTHREADED = 0x2
+    MULTITHREADED = 0x2
+    DISABLE_OLE1DDE = 0x4
+    SPEED_OVER_MEMORY = 0x8
+
+class CLSCTX(DWORD):
+    CLSCTX_INPROC_SERVER = 0x1
+    CLSCTX_INPROC_HANDLER = 0x2
+    CLSCTX_LOCAL_SERVER = 0x4
+    CLSCTX_INPROC_SERVER16 = 0x8
+    CLSCTX_REMOTE_SERVER = 0x10
+    CLSCTX_INPROC_HANDLER16 = 0x20
+    CLSCTX_RESERVED1 = 0x40
+    CLSCTX_RESERVED2 = 0x80
+    CLSCTX_RESERVED3 = 0x100
+    CLSCTX_RESERVED4 = 0x200
+    CLSCTX_NO_CODE_DOWNLOAD = 0x400
+    CLSCTX_RESERVED5 = 0x800
+    CLSCTX_NO_CUSTOM_MARSHAL = 0x1000
+    CLSCTX_ENABLE_CODE_DOWNLOAD = 0x2000
+    CLSCTX_NO_FAILURE_LOG = 0x4000
+    CLSCTX_DISABLE_AAA = 0x8000
+    CLSCTX_ENABLE_AAA = 0x10000
+    CLSCTX_FROM_DEFAULT_CONTEXT = 0x20000
+    CLSCTX_ACTIVATE_X86_SERVER = 0x40000
+    CLSCTX_ACTIVATE_32_BIT_SERVER = 0x40000
+    CLSCTX_ACTIVATE_64_BIT_SERVER = 0x80000
+    CLSCTX_ENABLE_CLOAKING = 0x100000
+    CLSCTX_APPCONTAINER = 0x400000
+    CLSCTX_ACTIVATE_AAA_AS_IU = 0x800000
+    CLSCTX_RESERVED6 = 0x1000000
+    CLSCTX_ACTIVATE_ARM32_SERVER = 0x2000000
+    CLSCTX_PS_DLL = 0x8000000

xlib/api/win32/oleaut32/__init__.py

@@ -0,0 +1 @@
+from .oleaut32 import VariantInit

xlib/api/win32/oleaut32/oleaut32.py

@@ -0,0 +1,7 @@
+from ctypes import POINTER, Structure
+
+from ..wintypes import VARIANT, dll_import
+
+
+@dll_import('OleAut32')
+def VariantInit( pvarg : POINTER(VARIANT) ) -> None: ...

xlib/api/win32/strmif/__init__.py

@@ -0,0 +1 @@
+from .strmif import ICreateDevEnum

xlib/api/win32/strmif/strmif.py

@@ -0,0 +1,10 @@
+from ctypes import POINTER
+
+from ..objidl import IEnumMoniker
+from ..wintypes import DWORD, GUID, HRESULT, REFIID, IUnknown, interface
+
+
+@interface
+class ICreateDevEnum(IUnknown):
+    def CreateClassEnumerator(self, refiid : REFIID, enumMoniker : POINTER(IEnumMoniker), flags : DWORD ) -> HRESULT: ...
+    IID = GUID('29840822-5B84-11D0-BD3B-00A0C911CE86')

xlib/api/win32/uuids/__init__.py

@@ -0,0 +1 @@
+from .uuids import CLSID_SystemDeviceEnum, CLSID_VideoInputDeviceCategory

xlib/api/win32/uuids/uuids.py

@@ -0,0 +1,4 @@
+from ..wintypes import CLSID
+
+CLSID_SystemDeviceEnum         = CLSID('62BE5D10-60EB-11d0-BD3B-00A0C911CE86')
+CLSID_VideoInputDeviceCategory = CLSID('860bb310-5d01-11d0-bd3b-00a0c911ce86')

xlib/api/win32/winmm/winmm.py

@@ -1,6 +1,4 @@
-#from ctypes import c_void_p, c_wchar_p, POINTER
-from ..wintypes import BOOL, DWORD,  MMRESULT, dll_import
-
+from ..wintypes import DWORD,  MMRESULT, dll_import
 
 @dll_import('Winmm')
 def timeBeginPeriod(uPeriod : DWORD) -> MMRESULT: ...

xlib/api/win32/wintypes/__init__.py

@@ -1,3 +1,6 @@
-from .wintypes import (BOOL, DWORD, ERROR, GUID, HANDLE, HRESULT, IID,
-                       LARGE_INTEGER, MMERROR, MMRESULT, REFGUID, REFIID,
-                       IUnknown, dll_import, interface)
+from .wintypes import (BOOL, CHAR, CLSID, DOUBLE, DWORD, ERROR, FLOAT, GUID,
+                       HANDLE, HRESULT, IID, INT, LARGE_INTEGER, LONG,
+                       LONGLONG, LPCOLESTR, MMERROR, MMRESULT, PVOID,
+                       REFCLSID, REFGUID, REFIID, SHORT, UINT, ULARGE_INTEGER,  
+                       USHORT, VARIANT, VARTYPE, WORD, IUnknown, dll_import,
+                       interface)

xlib/api/win32/wintypes/wintypes.py

@@ -1,14 +1,19 @@
 import ctypes
 import uuid
-from ctypes import (POINTER, WINFUNCTYPE, byref, c_byte, c_int64,
-                    c_longlong, c_size_t, c_ubyte, c_uint, c_uint32, c_ulong,
-                    c_void_p, c_wchar)
+from ctypes import (POINTER, WINFUNCTYPE, c_char_p, c_int16, c_int32, c_float, c_double, c_uint8,
+                    c_int64, c_int8, c_size_t, c_ubyte, c_uint, c_uint16,
+                    c_uint32, c_uint64, c_ulong, c_void_p, c_wchar_p)
 from ctypes.util import find_library
 from enum import IntEnum
 
 dlls_by_name = {}
 
 def dll_import(dll_name):
+    """
+
+    always annotate return type even if it is None !
+    """
+
     dll = dlls_by_name.get(dll_name, None)
     if dll is None:
         try:
@@ -88,6 +93,7 @@ def interface(cls_obj):
 class ERROR(IntEnum):
     # https://raw.githubusercontent.com/tpn/winsdk-10/master/Include/10.0.14393.0/shared/winerror.h
     SUCCESS = 0
+    INVALID_FUNCTION = 1
     E_NOINTERFACE = 0x80004002
 
     DXGI_ERROR_NOT_FOUND = 0x887A0002
@@ -152,6 +158,159 @@ class HANDLE(c_void_p):
     def __repr__(self):
         return self.__str__()
 
+
+class BOOL(c_size_t):
+    def __eq__(self, other):
+        if isinstance(other, self.__class__):
+            return (self.value != 0) == (other.value != 0)
+        elif isinstance(other, bool):
+            return (self.value != 0) == other
+        else:
+            return False
+    def __ne__(self, other):
+        return not(self == other)
+    def __hash__(self):
+        return self.value.__hash__()
+    def __str__(self):
+        return f'BOOL ({self.value != 0})'
+    def __repr__(self):
+        return self.__str__()
+
+class CHAR(c_int8):
+    def __eq__(self, other):
+        if isinstance(other, self.__class__):
+            return self.value == other.value
+        else:
+            return False
+    def __ne__(self, other):
+        return not(self == other)
+    def __hash__(self):
+        return self.value.__hash__()
+    def __str__(self):
+        return f'CHAR ({self.value})'
+    def __repr__(self):
+        return self.__str__()
+
+class BYTE(c_uint8):
+    def __eq__(self, other):
+        if isinstance(other, self.__class__):
+            return self.value == other.value
+        else:
+            return False
+    def __ne__(self, other):
+        return not(self == other)
+    def __hash__(self):
+        return self.value.__hash__()
+    def __str__(self):
+        return f'BYTE ({self.value})'
+    def __repr__(self):
+        return self.__str__()
+
+class SHORT(c_int16):
+    def __eq__(self, other):
+        if isinstance(other, self.__class__):
+            return self.value == other.value
+        else:
+            return False
+    def __ne__(self, other):
+        return not(self == other)
+    def __hash__(self):
+        return self.value.__hash__()
+    def __str__(self):
+        return f'SHORT ({self.value})'
+    def __repr__(self):
+        return self.__str__()
+
+class USHORT(c_uint16):
+    def __eq__(self, other):
+        if isinstance(other, self.__class__):
+            return self.value == other.value
+        else:
+            return False
+    def __ne__(self, other):
+        return not(self == other)
+    def __hash__(self):
+        return self.value.__hash__()
+    def __str__(self):
+        return f'USHORT ({self.value})'
+    def __repr__(self):
+        return self.__str__()
+
+class LONG(c_int32):
+    def __eq__(self, other):
+        if isinstance(other, self.__class__):
+            return self.value == other.value
+        else:
+            return False
+    def __ne__(self, other):
+        return not(self == other)
+    def __hash__(self):
+        return self.value.__hash__()
+    def __str__(self):
+        return f'LONG ({self.value})'
+    def __repr__(self):
+        return self.__str__()
+
+class ULONG(c_uint32):
+    def __eq__(self, other):
+        if isinstance(other, self.__class__):
+            return self.value == other.value
+        else:
+            return False
+    def __ne__(self, other):
+        return not(self == other)
+    def __hash__(self):
+        return self.value.__hash__()
+    def __str__(self):
+        return f'ULONG ({self.value})'
+    def __repr__(self):
+        return self.__str__()
+
+class INT(c_int32):
+    def __eq__(self, other):
+        if isinstance(other, self.__class__):
+            return self.value == other.value
+        else:
+            return False
+    def __ne__(self, other):
+        return not(self == other)
+    def __hash__(self):
+        return self.value.__hash__()
+    def __str__(self):
+        return f'INT ({self.value})'
+    def __repr__(self):
+        return self.__str__()
+
+class UINT(c_uint32):
+    def __eq__(self, other):
+        if isinstance(other, self.__class__):
+            return self.value == other.value
+        else:
+            return False
+    def __ne__(self, other):
+        return not(self == other)
+    def __hash__(self):
+        return self.value.__hash__()
+    def __str__(self):
+        return f'UINT ({self.value})'
+    def __repr__(self):
+        return self.__str__()
+
+class WORD(c_uint16):
+    def __eq__(self, other):
+        if isinstance(other, self.__class__):
+            return self.value == other.value
+        else:
+            return False
+    def __ne__(self, other):
+        return not(self == other)
+    def __hash__(self):
+        return self.value.__hash__()
+    def __str__(self):
+        return f'WORD ({self.value})'
+    def __repr__(self):
+        return self.__str__()
+
 class DWORD(c_uint):
     def __eq__(self, other):
         if isinstance(other, self.__class__):
@@ -182,12 +341,10 @@ class LARGE_INTEGER(c_int64):
     def __repr__(self):
         return self.__str__()
 
-class BOOL(c_size_t): 
+class LONGLONG(c_int64):
     def __eq__(self, other):
         if isinstance(other, self.__class__):
-            return (self.value != 0) == (other.value != 0)
-        elif isinstance(other, bool):
-            return (self.value != 0) == other
+            return self.value == other.value
         else:
             return False
     def __ne__(self, other):
@@ -195,21 +352,104 @@ class BOOL(c_size_t):
     def __hash__(self):
         return self.value.__hash__()
     def __str__(self):
-        return f'BOOL ({self.value != 0})'
+        return f'LONGLONG ({self.value})'
     def __repr__(self):
         return self.__str__()
 
+class ULONGLONG(c_uint64):
+    def __eq__(self, other):
+        if isinstance(other, self.__class__):
+            return self.value == other.value
+        else:
+            return False
+    def __ne__(self, other):
+        return not(self == other)
+    def __hash__(self):
+        return self.value.__hash__()
+    def __str__(self):
+        return f'ULONGLONG ({self.value})'
+    def __repr__(self):
+        return self.__str__()
+
+class ULARGE_INTEGER(c_uint64):
+    def __eq__(self, other):
+        if isinstance(other, self.__class__):
+            return self.value == other.value
+        else:
+            return False
+    def __ne__(self, other):
+        return not(self == other)
+    def __hash__(self):
+        return self.value.__hash__()
+    def __str__(self):
+        return f'ULARGE_INTEGER ({self.value})'
+    def __repr__(self):
+        return self.__str__()
+
+class FLOAT(c_float):
+    def __eq__(self, other):
+        if isinstance(other, self.__class__):
+            return self.value == other.value
+        else:
+            return False
+    def __ne__(self, other):
+        return not(self == other)
+    def __hash__(self):
+        return self.value.__hash__()
+    def __str__(self):
+        return f'FLOAT ({self.value})'
+    def __repr__(self):
+        return self.__str__()
+
+class DOUBLE(c_double):
+    def __eq__(self, other):
+        if isinstance(other, self.__class__):
+            return self.value == other.value
+        else:
+            return False
+    def __ne__(self, other):
+        return not(self == other)
+    def __hash__(self):
+        return self.value.__hash__()
+    def __str__(self):
+        return f'DOUBLE ({self.value})'
+    def __repr__(self):
+        return self.__str__()
+
+class PVOID(c_void_p):
+    def __eq__(self, other):
+        if isinstance(other, self.__class__):
+            return self.value == other.value
+        else:
+            return False
+    def __ne__(self, other):
+        return not(self == other)
+    def __hash__(self):
+        return self.value.__hash__()
+    def __str__(self):
+        return f'PVOID ({self.value})'
+    def __repr__(self):
+        return self.__str__()
 
 class GUID (ctypes.Structure):
     _fields_ = [('data', c_ubyte * 16)]
     def __init__(self, hexstr=None):
         super().__init__()
         self.data[:] = uuid.UUID(hexstr).bytes_le
+
+class CSTR(c_char_p):
+    def __init__(self, s : str):
+        super().__init__(s.encode('utf-8'))
+
+class CLSID(GUID): ...
+class LPCOLESTR(c_wchar_p): ...
+class BSTR(c_wchar_p): ...
+
 IID = GUID
 REFIID = POINTER(IID)
 REFGUID = POINTER(GUID)
-
-
+REFCLSID = POINTER(CLSID)
+#LPOLESTR = POINTER(OLESTR)
 
 @interface
 class IUnknown(c_void_p):
@@ -226,126 +466,136 @@ class IUnknown(c_void_p):
         return None
 
 
-# class COMObject(c_void_p):
-#     """
-#     base class for COM objects
+class VARTYPE(SHORT):
+    VT_EMPTY = 0
+    VT_NULL = 1
+    VT_I2 = 2
+    VT_I4 = 3
+    VT_R4 = 4
+    VT_R8 = 5
+    VT_CY = 6
+    VT_DATE = 7
+    VT_BSTR = 8
+    VT_DISPATCH = 9
+    VT_ERROR = 10
+    VT_BOOL = 11
+    VT_VARIANT = 12
+    VT_UNKNOWN = 13
+    VT_DECIMAL = 14
+    VT_I1 = 16
+    VT_UI1 = 17
+    VT_UI2 = 18
+    VT_UI4 = 19
+    VT_I8 = 20
+    VT_UI8 = 21
+    VT_INT = 22
+    VT_UINT = 23
+    VT_VOID = 24
+    VT_HRESULT = 25
+    VT_PTR = 26
+    VT_SAFEARRAY = 27
+    VT_CARRAY = 28
+    VT_USERDEFINED = 29
+    VT_LPSTR = 30
+    VT_LPWSTR = 31
+    VT_RECORD = 36
+    VT_INT_PTR = 37
+    VT_UINT_PTR = 38
+    VT_FILETIME = 64
+    VT_BLOB = 65
+    VT_STREAM = 66
+    VT_STORAGE = 67
+    VT_STREAMED_OBJECT = 68
+    VT_STORED_OBJECT = 69
+    VT_BLOB_OBJECT = 70
+    VT_CF = 71
+    VT_CLSID = 72
+    VT_VERSIONED_STREAM = 73
+    VT_BSTR_BLOB = 0xfff
+    VT_VECTOR = 0x1000
+    VT_ARRAY = 0x2000
+    VT_BYREF = 0x4000
+    VT_RESERVED = 0x8000
+    VT_ILLEGAL = 0xffff
+    VT_ILLEGALMASKED = 0xfff
+    VT_TYPEMASK = 0xff
 
-#     you should implement _vf_table in every subclass
-#     """
-#     def _vf_table(): return dict()
+class _VARIANT_RECORD(ctypes.Structure):
+    _fields_ = [ ('pvRecord', PVOID),
+                 ('pRecInfo', IUnknown ) ] #IRecordInfo
 
-#     def _get_vf_func(self, name):
-#         """
-#         returns function from vf table by name
-#         """
-#         if self.value is None:
-#             raise Exception(f'COMObject {self} was not assigned.')
+class _VARIANT_NAME_3(ctypes.Union):
+    _fields_ = [ ('llVal', LONGLONG),
+                 ('lVal', LONG),
+                 ('bVal', BYTE),
+                 ('iVal', SHORT),
+                 ('fltVal', FLOAT),
+                 ('dblVal', DOUBLE),
+                    #VARIANT_BOOL boolVal;
+                    #VARIANT_BOOL __OBSOLETE__VARIANT_BOOL;
+                    #SCODE        scode;
+                    #CY           cyVal;
+                    #DATE         date;
+                 ('bstrVal', BSTR),
+                 ('punkVal', IUnknown),
+                    #IDispatch    *pdispVal;
+                    #SAFEARRAY    *parray;
+                 ('pbVal', POINTER(BYTE)),
+                 ('piVal', POINTER(SHORT)),
+                 ('plVal', POINTER(LONG)),
+                 ('pllVal', POINTER(LONGLONG)),
+                 ('pfltVal', POINTER(FLOAT)),
+                 ('pdblVal', POINTER(DOUBLE)),
+                    # VARIANT_BOOL *pboolVal;
+                    # VARIANT_BOOL *__OBSOLETE__VARIANT_PBOOL;
+                    # SCODE        *pscode;
+                    # CY           *pcyVal;
+                    # DATE         *pdate;
+                 ('pbstrVal', POINTER(BSTR) ),
+                 ('ppunkVal', POINTER(IUnknown) ),
+                    # IDispatch    **ppdispVal;
+                    # SAFEARRAY    **pparray;
+                    # VARIANT      *pvarVal;
+                 ('byref', PVOID),
+                 ('cVal', CHAR),
+                 ('uiVal', USHORT),
+                 ('ulVal', ULONG),
+                 ('ullVal', ULONGLONG),
+                 ('intVal', INT),
+                 ('uintVal', UINT),
+                    #DECIMAL      *pdecVal;
+                 ('pcVal', POINTER(CHAR)),
+                 ('puiVal', POINTER(USHORT)),
+                 ('pulVal', POINTER(ULONG)),
+                 ('pullVal', POINTER(ULONGLONG)),
+                 ('pintVal', POINTER(INT)),
+                 ('puintVal', POINTER(UINT)),
 
-#         vf_proto_cls = self.__class__
+                 ('record', _VARIANT_RECORD ),
+                ]
 
-#         vf = getattr(vf_proto_cls, '_vf', None)
-#         if vf is None:
-#             vf = {}
+class VARIANT(ctypes.Structure):
+    _fields_ = [('vt', VARTYPE ),
+                ('wReserved1', WORD),
+                ('wReserved2', WORD),
+                ('wReserved3', WORD),
+                ('value', _VARIANT_NAME_3),
+               ]
+    def __init__(self):
+        """
+        by default initialized to VT_EMPTY
+        """
 
-#             hierarchy = []
-#             while vf_proto_cls != COMObject:
-#                 hierarchy.insert(0, vf_proto_cls)
-#                 vf_proto_cls = vf_proto_cls.__bases__[0]
+        self.vt : VARTYPE = VARTYPE.VT_EMPTY
+        #self.wReserved1 : WORD = WORD()
+        #self.wReserved2 : WORD = WORD()
+        #self.wReserved3 : WORD = WORD()
+        #self.value : _VARIANT_NAME_3 = _VARIANT_NAME_3()
+        super().__init__()
 
-#             func_id = 0
-#             for vf_proto_cls in hierarchy:
-#                 for func_name, func_type in vf_proto_cls._vf_table().items():
-#                     if func_name in vf:
-#                         raise Exception(f'Function duplicate {func_name} in {self}')
-#                     vf[func_name] = (func_id, func_type)
-#                     func_id += 1
-#             setattr(vf_proto_cls, '_vf', vf)
-        
-#         func_id, func_type = vf[name]
-#         vf_table = ct.cast( c_void_p( ct.cast(self, POINTER(c_void_p))[0] ), POINTER(c_void_p))
-#         return func_type(vf_table[func_id])    
-
-# class IUnknown(COMObject):
-#     def QueryInterface(self, iid : REFIID, out_IUnknown : POINTER(c_void_p)) -> HRESULT: 
-#         return self._get_vf_func('QueryInterface')(self, iid, out_IUnknown)
-    
-#     def AddRef(self) -> c_ulong:  
-#         return self._get_vf_func('AddRef')(self)
-        
-#     def Release(self) -> c_ulong: 
-#         return self._get_vf_func('Release')(self)
-        
-#     IID = GUID('00000000-0000-0000-C000-000000000046')
-    
-#     def _vf_table(): return dict(
-#         QueryInterface      = WINFUNCTYPE(HRESULT, IUnknown, REFIID, POINTER(IUnknown) ),
-#         AddRef              = WINFUNCTYPE(c_ulong, IUnknown),
-#         Release             = WINFUNCTYPE(c_ulong, IUnknown), 
-#         )
-    
-
-#     def query_interface(self, iid : IID) -> 'IUnknown':
-#         out_IUnknown = IUnknown()
-#         hr = self.QueryInterface(iid, out_IUnknown)
-#         if hr == ERROR.SUCCESS:
-#             return out_IUnknown
-#         return None
-       
-       
-# class COMBase(c_void_p): ...
-    
-
-# def com_class(cls_obj):
-#     virtual_idx = 0
-    
-#     # Determine virtuals count from parent class
-#     parent = cls_obj.__bases__[0]
-#     if parent != COMBase:
-#         virtual_idx = parent._virtuals_count
-            
-#     # Walk through all virtuals and assign virtual idx
-#     for key, value in cls_obj.__dict__.items():
-#         _virtual_idx = getattr(value, '_virtual_idx', None)
-#         if _virtual_idx is not None:
-#             value._virtual_idx = virtual_idx
-#             virtual_idx += 1
-            
-#     cls_obj._virtuals_count = virtual_idx
-#     return cls_obj
-    
-
-# @com_class
-# class IUnknown(COMBase):
-
-#     @virtual
-#     def QueryInterface(self, refiid : REFIID, pIUnknown : POINTER(c_void_p) ) -> HRESULT: ...
-    
-#     @virtual
-#     def AddRef(self : COMBase) -> c_ulong: ...
-        
-#     @virtual
-#     def Release(self : COMBase) -> c_ulong: ...
-
-# def virtual(func):
-#     func_type = None
-    
-#     def wrapper(this, *args):
-#         if wrapper._functype is None:
-#             x = wrapper._virtual_idx
-#             anno = list(func.__annotations__.values())
-#             wrapper._functype = WINFUNCTYPE(anno[-1], *anno[:-1])
-            
-#         vf_table = ct.cast( c_void_p( ct.cast(this, POINTER(c_void_p))[0] ), POINTER(c_void_p))
-#         real_func = wrapper._functype( vf_table[wrapper._virtual_idx] )
-        
-        
-#         import code
-#         code.interact(local=dict(globals(), **locals()))
+    def __repr__(self): return self.__str__()
+    def __str__(self):
+        return f'VARIANT object: { self.vt }'
 
 
 
-#         return real_func(this, *args)
-#     wrapper._func = func
-#     wrapper._functype = None
-#     wrapper._virtual_idx = -1
-#     return wrapper