Fix SAL warnings

Author: dmex

phlib/guisup.c

@@ -1393,7 +1393,7 @@ VOID PhEnumChildWindows(
     _In_opt_ HWND WindowHandle,
     _In_ ULONG Limit,
     _In_ PH_CHILD_ENUM_CALLBACK Callback,
-    _In_ PVOID Context
+    _In_opt_ PVOID Context
     )
 {
     HWND childWindow = NULL;
@@ -1592,7 +1592,7 @@ static ULONG NTAPI PhpWindowCallbackHashtableHashFunction(
 VOID PhRegisterWindowCallback(
     _In_ HWND WindowHandle,
     _In_ PH_PLUGIN_WINDOW_EVENT_TYPE Type,
-    _In_ PVOID Context
+    _In_opt_ PVOID Context
     )
 {
     PPH_PLUGIN_WINDOW_CALLBACK_REGISTRATION entry;

phlib/include/guisup.h

@@ -500,7 +500,7 @@ VOID PhEnumChildWindows(
     _In_opt_ HWND WindowHandle,
     _In_ ULONG Limit,
     _In_ PH_CHILD_ENUM_CALLBACK Callback,
-    _In_ PVOID Context
+    _In_opt_ PVOID Context
     );
 
 HWND PhGetProcessMainWindow(
@@ -866,7 +866,7 @@ NTAPI
 PhRegisterWindowCallback(
     _In_ HWND WindowHandle,
     _In_ PH_PLUGIN_WINDOW_EVENT_TYPE Type,
-    _In_ PVOID Context
+    _In_opt_ PVOID Context
     );
 
 PHLIBAPI

phlib/include/secedit.h

@@ -33,7 +33,7 @@ PHLIBAPI
 VOID
 NTAPI
 PhEditSecurity(
-    _In_ HWND WindowHandle,
+    _In_opt_ HWND WindowHandle,
     _In_ PWSTR ObjectName,
     _In_ PWSTR ObjectType,
     _In_ PPH_OPEN_OBJECT OpenCallback,
@@ -183,4 +183,4 @@ PhGetAccessString(
 }
 #endif
 
-#endif
+#endif

phlib/include/wslsup.h

@@ -36,8 +36,7 @@ ULONG PhCreateProcessLxss(
     _In_ PWSTR LxssDistribution,
     _In_ PWSTR LxssCommandLine,
     _In_opt_ PWSTR LxssCurrentDirectory,
-    _Out_ PPH_STRING *Result,
-    _Out_opt_ PHANDLE ProcessHandle
+    _Out_ PPH_STRING *Result
     );
 
 #ifdef __cplusplus

phlib/secedit.c

@@ -140,7 +140,7 @@ static NTSTATUS PhpEditSecurityInformationThread(
  * \param Context A user-defined value to pass to the callback functions.
  */
 VOID PhEditSecurity(
-    _In_ HWND WindowHandle,
+    _In_opt_ HWND WindowHandle,
     _In_ PWSTR ObjectName,
     _In_ PWSTR ObjectType,
     _In_ PPH_OPEN_OBJECT OpenObject,