pywin32: Fix various arguments (#13846)

stubs/pywin32/_win32typing.pyi

@@ -4923,7 +4923,7 @@ class PyCColorDialog:
     def DoModal(self): ...
     def GetSavedCustomColors(self): ...
     def SetCurrentColor(self, color, /) -> None: ...
-    def SetCustomColors(self) -> None: ...
+    def SetCustomColors(self, colors: Sequence[int], /) -> None: ...
     def GetCustomColors(self) -> tuple[Incomplete, ...]: ...
 
 class PyCComboBox:

stubs/pywin32/win32/win32api.pyi

@@ -200,7 +200,7 @@ def LoadLibrary(fileName: str, /): ...
 def LoadLibraryEx(fileName: str, handle: int, handle1, /) -> int: ...
 def LoadResource(handle: int, _type: _win32typing.PyResourceId, name: _win32typing.PyResourceId, language, /) -> str: ...
 def LoadString(handle: int, stringId, numChars: int = ..., /) -> str: ...
-def MessageBeep(type: int, /): ...
+def MessageBeep(type: int = 0, /): ...
 def MessageBox(hwnd: int | None, message: str, title: str | None = ..., style=..., language=..., /) -> int: ...
 def MonitorFromPoint(pt: tuple[Incomplete, Incomplete], Flags: int = ...) -> int: ...
 def MonitorFromRect(rc: _win32typing.PyRECT | tuple[int, int, int, int], Flags: int = ...) -> int: ...
@@ -268,7 +268,7 @@ def SetCursorPos(arg: tuple[Incomplete, Incomplete], /) -> None: ...
 def SetDllDirectory(PathName: str, /) -> None: ...
 def SetErrorMode(errorMode, /): ...
 def SetFileAttributes(pathName: str, attrs, /): ...
-def SetLastError(): ...
+def SetLastError(errVal: int, /): ...
 def SetSysColors(Elements, RgbValues, /) -> None: ...
 def SetLocalTime(SystemTime: TimeType, /) -> None: ...
 def SetSystemTime(year, month, dayOfWeek, day, hour, minute, second, millseconds, /): ...

stubs/pywin32/win32/win32gui.pyi

@@ -152,7 +152,7 @@ def AlphaBlend(
     /,
 ) -> None: ...
 def MessageBox(parent: _win32typing.PyHANDLE | int | None, text: str, caption: str, flags, /): ...
-def MessageBeep(_type, /) -> None: ...
+def MessageBeep(type, /) -> None: ...
 def CreateWindow(
     className: str | _win32typing.PyResourceId,
     windowTitle: str | None,