4 files changed, 16 insertions, 0 deletions
diff --git a/backends/platform/PalmOS/Src/native/oscalls.cpp b/backends/platform/PalmOS/Src/native/oscalls.cpp
index f15a1ef781..68cfb0eef5 100644
--- a/backends/platform/PalmOS/Src/native/oscalls.cpp
+++ b/backends/platform/PalmOS/Src/native/oscalls.cpp
@@ -60,3 +60,15 @@ PACE_CLASS_WRAPPER(UInt16)
 	PACE_PIN_EXEC_NP(pinSysGetOrientation, UInt16)
 }
 
+PACE_CLASS_WRAPPER(Err)
+	__68k_SysSetOrientationTriggerState(UInt16 triggerState) {
+	PACE_PARAMS_INIT()
+	PACE_PARAMS_ADD16(triggerState)
+	PACE_PARAMS_END()
+	PACE_PIN_EXEC(pinSysSetOrientationTriggerState, Err)
+}
+
+PACE_CLASS_WRAPPER(UInt16)
+	__68k_SysGetOrientationTriggerState(void) {
+	PACE_PIN_EXEC_NP(pinSysGetOrientationTriggerState, UInt16)
+}
diff --git a/backends/platform/PalmOS/Src/native/oscalls.h b/backends/platform/PalmOS/Src/native/oscalls.h
index cc35eeaf28..2b4b93488f 100644
--- a/backends/platform/PalmOS/Src/native/oscalls.h
+++ b/backends/platform/PalmOS/Src/native/oscalls.h
@@ -41,6 +41,8 @@ Err __68k_StatHide();
 Err __68k_PINSetInputAreaState(UInt16 state);
 Err __68k_SysSetOrientation(UInt16 orientation);
 UInt16 __68k_SysGetOrientation(void);
+Err __68k_SysSetOrientationTriggerState(UInt16 triggerState);
+UInt16 __68k_SysGetOrientationTriggerState(void);
 
 #ifdef __cplusplus
 }
diff --git a/backends/platform/PalmOS/Src/os5_gfx.cpp b/backends/platform/PalmOS/Src/os5_gfx.cpp
index be5d28bc56..bd91be628c 100644
--- a/backends/platform/PalmOS/Src/os5_gfx.cpp
+++ b/backends/platform/PalmOS/Src/os5_gfx.cpp
@@ -72,6 +72,7 @@ void OSystem_PalmOS5::load_gfx_mode() {
 	if (OPTIONS_TST(kOptModeRotatable)) {
 		_sysOldOrientation = __68K(SysGetOrientation());
 		__68K(SysSetOrientation(sysOrientationLandscape));
+		__68K(SysSetOrientationTriggerState(sysOrientationTriggerDisabled));
 	}
 
 	gVars->indicator.on = RGBToColor(0,255,0);
diff --git a/backends/platform/PalmOS/Src/zodiac_gfx.cpp b/backends/platform/PalmOS/Src/zodiac_gfx.cpp
index 23568ba5aa..e76c283645 100644
--- a/backends/platform/PalmOS/Src/zodiac_gfx.cpp
+++ b/backends/platform/PalmOS/Src/zodiac_gfx.cpp
@@ -71,6 +71,7 @@ void OSystem_PalmZodiac::load_gfx_mode() {
 
 	_sysOldOrientation = SysGetOrientation();
 	SysSetOrientation(sysOrientationLandscape);
+	SysSetOrientationTriggerState(sysOrientationTriggerDisabled);
 
 	gVars->indicator.on = RGBToColor(0,255,0);
 	gVars->indicator.off = RGBToColor(0,0,0);