Add feature screenshot

app/action.c

@@ -43,6 +43,10 @@
 #include "ui/inputbox.h"
 #include "ui/ui.h"
 
+#ifdef ENABLE_FEAT_F4HWN_SCREENSHOT
+  #include "screenshot.h"
+#endif
+
 #if defined(ENABLE_FMRADIO)
 static void ACTION_Scan_FM(bool bRestart);
 #endif
@@ -314,6 +318,11 @@ void ACTION_Handle(KEY_Code_t Key, bool bKeyPressed, bool bKeyHeld)
 	{
 		funcShort = funcLong;
 
+		// For screenshot
+		#ifdef ENABLE_FEAT_F4HWN_SCREENSHOT
+			getScreenShot();
+		#endif
+
 		if (!bKeyPressed) //ignore release if held
 			return;
 	}

app/spectrum.c

@@ -27,6 +27,10 @@
 #include "ui/helper.h"
 #include "ui/main.h"
 
+#ifdef ENABLE_FEAT_F4HWN_SCREENSHOT
+  #include "screenshot.h"
+#endif
+
 struct FrequencyBandInfo {
   uint32_t lower;
   uint32_t upper;
@@ -572,6 +576,10 @@ static void ToggleBacklight() {
   } else {
     BACKLIGHT_TurnOff();
   }
+  // For screenshot
+  #ifdef ENABLE_FEAT_F4HWN_SCREENSHOT
+    getScreenShot();
+  #endif
 }
 
 static void ToggleStepsCount() {