diff --git a/core/sys/windows/kernel32.odin b/core/sys/windows/kernel32.odin
index eba275522..d3b5a148b 100644
--- a/core/sys/windows/kernel32.odin
+++ b/core/sys/windows/kernel32.odin
@@ -64,6 +64,7 @@ foreign kernel32 {
 	RemoveVectoredContinueHandler  :: proc(Handle: LPVOID) -> DWORD ---
 	RaiseException :: proc(dwExceptionCode, dwExceptionFlags, nNumberOfArguments: DWORD, lpArguments: ^ULONG_PTR) -> ! ---
 
+	SetUnhandledExceptionFilter :: proc(lpTopLevelExceptionFilter: LPTOP_LEVEL_EXCEPTION_FILTER) -> LPTOP_LEVEL_EXCEPTION_FILTER ---
 
 	CreateHardLinkW :: proc(lpSymlinkFileName: LPCWSTR,
 	                        lpTargetFileName: LPCWSTR,
@@ -464,6 +465,8 @@ foreign kernel32 {
 	GetHandleInformation :: proc(hObject: HANDLE, lpdwFlags: ^DWORD) -> BOOL ---
 
 	RtlCaptureStackBackTrace :: proc(FramesToSkip: ULONG, FramesToCapture: ULONG, BackTrace: [^]PVOID, BackTraceHash: PULONG) -> USHORT ---
+
+	GetSystemPowerStatus :: proc(lpSystemPowerStatus: ^SYSTEM_POWER_STATUS) -> BOOL ---
 }
 
 DEBUG_PROCESS                    :: 0x00000001
@@ -1210,6 +1213,15 @@ SYSTEM_LOGICAL_PROCESSOR_INFORMATION :: struct {
 	DummyUnion: DUMMYUNIONNAME_u,
 }
 
+SYSTEM_POWER_STATUS :: struct {
+	ACLineStatus:        BYTE,
+	BatteryFlag:         BYTE,
+	BatteryLifePercent:  BYTE,
+	SystemStatusFlag:    BYTE,
+	BatteryLifeTime:     DWORD,
+	BatteryFullLifeTime: DWORD,
+} 
+
 /* Global Memory Flags */
 GMEM_FIXED          :: 0x0000
 GMEM_MOVEABLE       :: 0x0002
@@ -1228,3 +1240,5 @@ GMEM_INVALID_HANDLE :: 0x8000
 
 GHND                :: (GMEM_MOVEABLE | GMEM_ZEROINIT)
 GPTR                :: (GMEM_FIXED | GMEM_ZEROINIT)
+
+LPTOP_LEVEL_EXCEPTION_FILTER :: PVECTORED_EXCEPTION_HANDLER
diff --git a/core/sys/windows/types.odin b/core/sys/windows/types.odin
index 11d2774d6..7ed322169 100644
--- a/core/sys/windows/types.odin
+++ b/core/sys/windows/types.odin
@@ -34,6 +34,7 @@ HGDIOBJ :: distinct HANDLE
 HBITMAP :: distinct HANDLE
 HGLOBAL :: distinct HANDLE
 HHOOK :: distinct HANDLE
+HWINEVENTHOOK :: distinct HANDLE
 HKEY :: distinct HANDLE
 HDESK :: distinct HANDLE
 HFONT :: distinct HANDLE
@@ -703,6 +704,14 @@ WNDPROC :: #type proc "system" (HWND, UINT, WPARAM, LPARAM) -> LRESULT
 
 HOOKPROC :: #type proc "system" (code: c_int, wParam: WPARAM, lParam: LPARAM) -> LRESULT
 
+WINEVENTPROC :: #type proc "system" (
+	hWinEventHook: HWINEVENTHOOK,
+	event: DWORD,
+	hwnd: HWND,
+	idObject, idChild: LONG,
+	idEventThread, dwmsEventTime: DWORD,
+)
+
 CWPRETSTRUCT :: struct {
 	lResult: LRESULT,
 	lParam: LPARAM,
diff --git a/core/sys/windows/user32.odin b/core/sys/windows/user32.odin
index 1fc0116f5..6c053fed0 100644
--- a/core/sys/windows/user32.odin
+++ b/core/sys/windows/user32.odin
@@ -17,6 +17,17 @@ foreign user32 {
 
 	GetClassNameW :: proc(hWnd: HWND, lpClassName: LPWSTR, nMaxCount: c_int) -> c_int ---
 
+	GetParent :: proc(hWnd: HWND) -> HWND ---
+	IsWindowVisible :: proc(hWnd: HWND) -> BOOL ---
+	SetWinEventHook :: proc(
+		eventMin, eventMax: DWORD,
+		hmodWinEventProc: HMODULE,
+		pfnWinEvenProc: WINEVENTPROC,
+		idProcess, idThread, dwmFlags: DWORD,
+	) -> HWINEVENTHOOK ---
+
+	IsChild :: proc(hWndParent, hWnd: HWND) -> BOOL ---
+
 	RegisterClassW :: proc(lpWndClass: ^WNDCLASSW) -> ATOM ---
 	RegisterClassExW :: proc(^WNDCLASSEXW) -> ATOM ---
 	UnregisterClassW :: proc(lpClassName: LPCWSTR, hInstance: HINSTANCE) -> BOOL ---
diff --git a/core/sys/windows/winerror.odin b/core/sys/windows/winerror.odin
index 118327ffa..c66a22322 100644
--- a/core/sys/windows/winerror.odin
+++ b/core/sys/windows/winerror.odin
@@ -47,7 +47,7 @@ ERROR_PIPE_BUSY              : DWORD : 231
 
 E_NOTIMPL :: HRESULT(-0x7fff_bfff) // 0x8000_4001
 
-SUCCEEDED :: #force_inline proc(#any_int result: int) -> bool { return result >= 0 }
+SUCCEEDED :: #force_inline proc "contextless" (#any_int result: int) -> bool { return result >= 0 }
 
 
 System_Error :: enum DWORD {