diff --git a/src/InputStream.c b/src/InputStream.c
index 4855965..cfb9e10 100644
--- a/src/InputStream.c
+++ b/src/InputStream.c
@@ -1226,7 +1226,7 @@ int LiSendTouchEvent(uint8_t eventType, uint32_t pointerId, float x, float y, fl
     }
 
     // This is a protocol extension only supported with Sunshine
-    if (!(SunshineFeatureFlags & SS_FF_PEN_TOUCH_EVENTS)) {
+    if (!(SunshineFeatureFlags & LI_FF_PEN_TOUCH_EVENTS)) {
         return LI_ERR_UNSUPPORTED;
     }
 
@@ -1275,7 +1275,7 @@ int LiSendPenEvent(uint8_t eventType, uint8_t toolType, uint8_t penButtons,
     }
 
     // This is a protocol extension only supported with Sunshine
-    if (!(SunshineFeatureFlags & SS_FF_PEN_TOUCH_EVENTS)) {
+    if (!(SunshineFeatureFlags & LI_FF_PEN_TOUCH_EVENTS)) {
         return LI_ERR_UNSUPPORTED;
     }
 
@@ -1368,7 +1368,7 @@ int LiSendControllerTouchEvent(uint8_t controllerNumber, uint8_t eventType, uint
     }
 
     // This is a protocol extension only supported with Sunshine
-    if (!(SunshineFeatureFlags & SS_FF_CONTROLLER_TOUCH_EVENTS)) {
+    if (!(SunshineFeatureFlags & LI_FF_CONTROLLER_TOUCH_EVENTS)) {
         return LI_ERR_UNSUPPORTED;
     }
 
@@ -1416,7 +1416,7 @@ int LiSendControllerMotionEvent(uint8_t controllerNumber, uint8_t motionType, fl
     }
 
     // This is a protocol extension only supported with Sunshine
-    if (!(SunshineFeatureFlags & SS_FF_CONTROLLER_TOUCH_EVENTS)) {
+    if (!(SunshineFeatureFlags & LI_FF_CONTROLLER_TOUCH_EVENTS)) {
         return LI_ERR_UNSUPPORTED;
     }
 
diff --git a/src/Limelight-internal.h b/src/Limelight-internal.h
index 160ff46..8647dbd 100644
--- a/src/Limelight-internal.h
+++ b/src/Limelight-internal.h
@@ -41,8 +41,6 @@ extern uint16_t VideoPortNumber;
 extern SS_PING AudioPingPayload;
 extern SS_PING VideoPingPayload;
 
-#define SS_FF_PEN_TOUCH_EVENTS 0x01
-#define SS_FF_CONTROLLER_TOUCH_EVENTS 0x02
 extern uint32_t SunshineFeatureFlags;
 
 // ENet channel ID values
diff --git a/src/Limelight.h b/src/Limelight.h
index 7453b7d..bc940e7 100644
--- a/src/Limelight.h
+++ b/src/Limelight.h
@@ -624,6 +624,9 @@ int LiSendMouseMoveAsMousePositionEvent(short deltaX, short deltaY, short refere
 //
 // If unsupported by the host, this will return LI_ERR_UNSUPPORTED and the caller should consider
 // falling back to other functions to send this input (such as LiSendMousePositionEvent()).
+//
+// To determine if LiSendTouchEvent() is supported without calling it, call LiGetHostFeatureFlags()
+// and check for the LI_FF_PEN_TOUCH_EVENTS flag.
 #define LI_TOUCH_EVENT_HOVER       0x00
 #define LI_TOUCH_EVENT_DOWN        0x01
 #define LI_TOUCH_EVENT_UP          0x02
@@ -642,6 +645,9 @@ int LiSendTouchEvent(uint8_t eventType, uint32_t pointerId, float x, float y, fl
 //
 // x, y, pressure, rotation, contact area, and tilt are ignored for LI_TOUCH_EVENT_BUTTON_ONLY events.
 // If one of those changes, send LI_TOUCH_EVENT_MOVE or LI_TOUCH_EVENT_HOVER instead.
+//
+// To determine if LiSendPenEvent() is supported without calling it, call LiGetHostFeatureFlags()
+// and check for the LI_FF_PEN_TOUCH_EVENTS flag.
 #define LI_TOOL_TYPE_UNKNOWN 0x00
 #define LI_TOOL_TYPE_PEN     0x01
 #define LI_TOOL_TYPE_ERASER  0x02
@@ -762,6 +768,9 @@ int LiSendControllerArrivalEvent(uint8_t controllerNumber, uint16_t activeGamepa
 //
 // If unsupported by the host, this will return LI_ERR_UNSUPPORTED and the caller should consider
 // using this touch input to simulate trackpad input.
+//
+// To determine if LiSendControllerTouchEvent() is supported without calling it, call LiGetHostFeatureFlags()
+// and check for the LI_FF_CONTROLLER_TOUCH_EVENTS flag.
 int LiSendControllerTouchEvent(uint8_t controllerNumber, uint8_t eventType, uint32_t pointerId, float x, float y, float pressure);
 
 // This function allows clients to send controller-associated motion events to a supported host.
@@ -934,6 +943,11 @@ bool LiGetHdrMetadata(PSS_HDR_METADATA metadata);
 // frame, just that an IDR frame will arrive soon.
 void LiRequestIdrFrame(void);
 
+// This function returns any extended feature flags supported by the host.
+#define LI_FF_PEN_TOUCH_EVENTS        0x01 // LiSendTouchEvent()/LiSendPenEvent() supported
+#define LI_FF_CONTROLLER_TOUCH_EVENTS 0x02 // LiSendControllerTouchEvent() supported
+uint32_t LiGetHostFeatureFlags(void);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/src/Misc.c b/src/Misc.c
index 8c3c553..da56fa0 100644
--- a/src/Misc.c
+++ b/src/Misc.c
@@ -155,3 +155,7 @@ void LiInitializeServerInformation(PSERVER_INFORMATION serverInfo) {
 uint64_t LiGetMillis(void) {
     return PltGetMillis();
 }
+
+uint32_t LiGetHostFeatureFlags(void) {
+    return SunshineFeatureFlags;
+}