diff --git a/core/sys/windows/hidpi.odin b/core/sys/windows/hidpi.odin
new file mode 100644
index 000000000..f1724ff0f
--- /dev/null
+++ b/core/sys/windows/hidpi.odin
@@ -0,0 +1,134 @@
+// +build windows
+package sys_windows
+import "core:c"
+
+USAGE :: distinct USHORT
+PUSAGE :: ^USAGE
+
+HIDP_CAPS :: struct {
+	Usage: USAGE,
+	UsagePage: USAGE,
+	InputReportByteLength: USHORT,
+	OutputReportByteLength: USHORT,
+	FeatureReportByteLength: USHORT,
+	Reserved: [17]USHORT,
+	NumberLinkCollectionNodes: USHORT,
+	NumberInputButtonCaps: USHORT,
+	NumberInputValueCaps: USHORT,
+	NumberInputDataIndices: USHORT,
+	NumberOutputButtonCaps: USHORT,
+	NumberOutputValueCaps: USHORT,
+	NumberOutputDataIndices: USHORT,
+	NumberFeatureButtonCaps: USHORT,
+	NumberFeatureValueCaps: USHORT,
+	NumberFeatureDataIndices: USHORT,
+}
+PHIDP_CAPS :: ^HIDP_CAPS
+
+HIDP_BUTTON_CAPS :: struct {
+	UsagePage: USAGE,
+	ReportID: UCHAR,
+	IsAlias: BOOLEAN,
+	BitField: USHORT,
+	LinkCollection: USHORT,
+	LinkUsage: USAGE,
+	LinkUsagePage: USAGE,
+	IsRange: BOOLEAN,
+	IsStringRange: BOOLEAN,
+	IsDesignatorRange: BOOLEAN,
+	IsAbsolute: BOOLEAN,
+	ReportCount: USHORT,
+	Reserved2: USHORT,
+	Reserved: [9]ULONG,
+	using _: struct #raw_union {
+		Range: struct {
+			UsageMin: USAGE,
+			UsageMax: USAGE,
+			StringMin: USHORT,
+			StringMax: USHORT,
+			DesignatorMin: USHORT,
+			DesignatorMax: USHORT,
+			DataIndexMin: USHORT,
+			DataIndexMax: USHORT,
+		},
+		NotRange: struct {
+		Usage: USAGE,
+		Reserved1: USAGE,
+		StringIndex: USHORT,
+		Reserved2: USHORT,
+		DesignatorIndex: USHORT,
+		Reserved3: USHORT,
+		DataIndex: USHORT,
+		Reserved4: USHORT,
+		},
+	},
+}
+PHIDP_BUTTON_CAPS :: ^HIDP_BUTTON_CAPS
+
+HIDP_VALUE_CAPS :: struct {
+	UsagePage: USAGE,
+	ReportID: UCHAR,
+	IsAlias: BOOLEAN,
+	BitField: USHORT,
+	LinkCollection: USHORT,
+	LinkUsage: USAGE,
+	LinkUsagePage: USAGE,
+	IsRange: BOOLEAN,
+	IsStringRange: BOOLEAN,
+	IsDesignatorRange: BOOLEAN,
+	IsAbsolute: BOOLEAN,
+	HasNull: BOOLEAN,
+	Reserved: UCHAR,
+	BitSize: USHORT,
+	ReportCount: USHORT,
+	Reserved2: [5]USHORT,
+	UnitsExp: ULONG,
+	Units: ULONG,
+	LogicalMin: LONG,
+	LogicalMax: LONG,
+	PhysicalMin: LONG,
+	PhysicalMax: LONG,
+	using _: struct #raw_union {
+		Range: struct {
+			UsageMin: USAGE,
+			UsageMax: USAGE,
+			StringMin: USHORT,
+			StringMax: USHORT,
+			DesignatorMin: USHORT,
+			DesignatorMax: USHORT,
+			DataIndexMin: USHORT,
+			DataIndexMax: USHORT,
+		},
+		NotRange: struct {
+			Usage: USAGE,
+			Reserved1: USAGE,
+			StringIndex: USHORT,
+			Reserved2: USHORT,
+			DesignatorIndex: USHORT,
+			Reserved3: USHORT,
+			DataIndex: USHORT,
+			Reserved4: USHORT,
+		},
+	},
+}
+PHIDP_VALUE_CAPS :: ^HIDP_VALUE_CAPS
+
+PHIDP_PREPARSED_DATA :: rawptr
+
+HIDP_REPORT_TYPE :: enum c.int {
+	Input,
+	Output,
+	Feature,
+}
+
+HIDP_STATUS_SUCCESS : NTSTATUS : 0x110000
+
+foreign import hid "system:hid.lib"
+@(default_calling_convention="stdcall")
+foreign hid {
+	HidP_GetCaps :: proc(PreparsedData: PHIDP_PREPARSED_DATA, Capabilities: PHIDP_CAPS) -> NTSTATUS ---
+	HidP_GetButtonCaps :: proc(ReportType: HIDP_REPORT_TYPE, ButtonCaps: PHIDP_BUTTON_CAPS, ButtonCapsLength: PUSHORT, PreparsedData: PHIDP_PREPARSED_DATA) -> NTSTATUS ---
+	HidP_GetValueCaps :: proc(ReportType: HIDP_REPORT_TYPE, ValueCaps: PHIDP_VALUE_CAPS, ValueCapsLength: PUSHORT, PreparsedData: PHIDP_PREPARSED_DATA) -> NTSTATUS ---
+	HidP_GetUsages :: proc(ReportType: HIDP_REPORT_TYPE, UsagePage: USAGE, LinkCollection: USHORT, UsageList: PUSAGE, UsageLength: PULONG, PreparsedData: PHIDP_PREPARSED_DATA, Report: PCHAR, ReportLength: ULONG) -> NTSTATUS ---
+	HidP_GetUsageValue :: proc(ReportType: HIDP_REPORT_TYPE, UsagePage: USAGE, LinkCollection: USHORT, Usage: USAGE, UsageValue: PULONG, PreparsedData: PHIDP_PREPARSED_DATA, Report: PCHAR, ReportLength: ULONG) -> NTSTATUS ---
+}
diff --git a/core/sys/windows/types.odin b/core/sys/windows/types.odin
index 360cab738..10b474866 100644
--- a/core/sys/windows/types.odin
+++ b/core/sys/windows/types.odin
@@ -75,6 +75,8 @@ LPRECT :: ^RECT
 LPPOINT :: ^POINT
 LSTATUS :: LONG
 PHKEY :: ^HKEY
+PUSHORT :: ^USHORT
+PCHAR :: ^CHAR
 
 UINT8  ::  u8
 UINT16 :: u16