Add some ctypes generation + HRESULT_FACILITY macro

Author: hakril

ctypes_generation/definitions/defines/error_helper.txt

@@ -2,4 +2,22 @@
 #define ERROR_SEVERITY_SUCCESS       0x00000000
 #define ERROR_SEVERITY_INFORMATIONAL 0x40000000
 #define ERROR_SEVERITY_WARNING       0x80000000
-#define ERROR_SEVERITY_ERROR         0xC0000000
+#define ERROR_SEVERITY_ERROR         0xC0000000
+
+// https://learn.microsoft.com/en-us/windows/win32/com/structure-of-com-error-codes
+// Define the facility codes
+//
+#define FACILITY_WINDOWS                 0x8
+#define FACILITY_WIN32                   0x7
+#define FACILITY_STORAGE                 0x3
+#define FACILITY_RPC                     0x1
+#define FACILITY_NULL                    0x0
+#define FACILITY_ITF                     0x4
+#define FACILITY_DISPATCH                0x2
+
+
+//
+// Define the severity codes
+//
+#define STATUS_SEVERITY_SUCCESS          0x0
+#define STATUS_SEVERITY_COERROR          0x2

ctypes_generation/definitions/defines/template.py

@@ -17,3 +17,10 @@
 
 def CTL_CODE(DeviceType, Function, Method, Access):
     return (((DeviceType) << 16) | ((Access) << 14) | ((Function) << 2) | (Method))
+
+# https://learn.microsoft.com/en-us/windows/win32/api/winerror/nf-winerror-hresult_facility
+# Original MACRO:
+#   #define HRESULT_FACILITY(hr)  (((hr) >> 16) & 0x1fff)
+
+def HRESULT_FACILITY(hr):
+    return (((hr) >> 16) & 0x1fff)