diff --git a/nx/include/switch/services/applet.h b/nx/include/switch/services/applet.h
index d3038892..bcb68f1c 100644
--- a/nx/include/switch/services/applet.h
+++ b/nx/include/switch/services/applet.h
@@ -588,6 +588,29 @@ Result appletGetProgramTotalActiveTime(u64 *activeTime);
  */
 Result appletSetApplicationAlbumUserData(const void* buffer, size_t size);
 
+// IWindowController
+
+/**
+ * @brief Gets the AppletResourceUserId of the CallerApplet.
+ * @note Only available with [6.0.0+].
+ * @param[out] out AppletResourceUserId
+ */
+Result appletGetAppletResourceUserIdOfCallerApplet(u64 *out);
+
+/**
+ * @brief Sets the current applet WindowVisibility.
+ * @note Only available with [7.0.0+].
+ * @param[in] flag Flag
+ */
+Result appletSetAppletWindowVisibility(bool flag);
+
+/**
+ * @brief Sets the AppletGpuTimeSlice.
+ * @note Only available with [7.0.0+].
+ * @param[in] val Input value, must not be negative.
+ */
+Result appletSetAppletGpuTimeSlice(s64 val);
+
 // ILibraryAppletCreator
 
 /**
diff --git a/nx/source/services/applet.c b/nx/source/services/applet.c
index d1e044f1..90e771c8 100644
--- a/nx/source/services/applet.c
+++ b/nx/source/services/applet.c
@@ -1895,10 +1895,6 @@ static Result _appletGetAppletResourceUserId(u64 *out) {
     return _appletCmdNoInOut64(&g_appletIWindowController, out, 1);
 }
 
-static Result _appletAcquireForegroundRights(void) {
-    return _appletCmdNoIO(&g_appletIWindowController, 10);
-}
-
 Result appletGetAppletResourceUserId(u64 *out) {
     if (!serviceIsActive(&g_appletSrv))
         return MAKERESULT(Module_Libnx, LibnxError_NotInitialized);
@@ -1907,6 +1903,33 @@ Result appletGetAppletResourceUserId(u64 *out) {
     return 0;
 }
 
+Result appletGetAppletResourceUserIdOfCallerApplet(u64 *out) {
+    if (hosversionBefore(6,0,0))
+        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
+    if (!serviceIsActive(&g_appletSrv))
+        return MAKERESULT(Module_Libnx, LibnxError_NotInitialized);
+
+    return _appletCmdNoInOut64(&g_appletIWindowController, out, 2);
+}
+
+static Result _appletAcquireForegroundRights(void) {
+    return _appletCmdNoIO(&g_appletIWindowController, 10);
+}
+
+Result appletSetAppletWindowVisibility(bool flag) {
+    if (hosversionBefore(7,0,0))
+        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
+
+    return _appletCmdInBool(&g_appletIWindowController, flag, 20);
+}
+
+Result appletSetAppletGpuTimeSlice(s64 val) {
+    if (hosversionBefore(7,0,0))
+        return MAKERESULT(Module_Libnx, LibnxError_IncompatSysVer);
+
+    return _appletCmdInU64(&g_appletIWindowController, val, 21);
+}
+
 // ILibraryAppletCreator
 
 static Result _appletCreateLibraryApplet(Service* srv_out, AppletId id, LibAppletMode mode) {