Improved win32 bindings according to Kelimions suggestions with enums and bitsets

core/sys/windows/kernel32.odin

@@ -1214,13 +1214,28 @@ SYSTEM_LOGICAL_PROCESSOR_INFORMATION :: struct {
 }
 
 SYSTEM_POWER_STATUS :: struct {
-	ACLineStatus:        BYTE,
-	BatteryFlag:         BYTE,
+	ACLineStatus:        AC_Line_Status,
+	BatteryFlag:         Battery_Flags,
 	BatteryLifePercent:  BYTE,
 	SystemStatusFlag:    BYTE,
 	BatteryLifeTime:     DWORD,
 	BatteryFullLifeTime: DWORD,
-} 
+}
+
+AC_Line_Status :: enum BYTE {
+   Offline = 0,
+   Online  = 1,
+   Unknown = 255,
+}
+
+Battery_Flag :: enum BYTE {
+    High     = 0,
+    Low      = 1,
+    Critical = 2,
+    Charging = 3,
+    No_Battery = 7, 
+}
+Battery_Flags :: bit_set[Battery_Flag; BYTE] 
 
 /* Global Memory Flags */
 GMEM_FIXED          :: 0x0000

core/sys/windows/user32.odin

@@ -23,7 +23,8 @@ foreign user32 {
 		eventMin, eventMax: DWORD,
 		hmodWinEventProc: HMODULE,
 		pfnWinEvenProc: WINEVENTPROC,
-		idProcess, idThread, dwmFlags: DWORD,
+		idProcess, idThread: DWORD,
+		dwFlags: WinEventFlags,
 	) -> HWINEVENTHOOK ---
 
 	IsChild :: proc(hWndParent, hWnd: HWND) -> BOOL ---
@@ -579,3 +580,12 @@ RedrawWindowFlags :: enum UINT {
 	RDW_FRAME           = 0x0400,
 	RDW_NOFRAME         = 0x0800,
 }
+
+WinEventFlags :: bit_set[WinEventFlag; DWORD]
+
+WinEventFlag :: enum DWORD {
+    WINEVENT_OUTOFCONTEXT   = 0,
+    WINEVENT_SKIPOWNTHREAD  = 1,
+    WINEVENT_SKIPOWNPROCESS = 2,
+    WINEVENT_INCONTEXT      = 4,
+}