Using The Token Variables TURB_ENGINE_3_TANK_SELECTOR KEY_FUEL_SELECTOR_3_RIGHT KEY_FUEL_SELECTOR_3_LEFT_MAIN KEY_FUEL_SELECTOR_3_OFF I was Trying to Use different Fuel Tanks While feeding the Num 3 Engine and I can't get anything to Work! I was using The Make Icon fron the Fuel selector SDK as a Templete. Except I can't get it working at all. I Will Put my code here that I can only make it work exactly like the default only the words are changed from (fuel_selector) to my words (engine_3_tank_selector)If Someone would Help me out it would be Appreciated and if Someone Else has the problem maybe it would help them also. Thanks!///////////////////////////////////////////////////////////////////////// SDK.Fuel_Selector.c// Copyright © 2000 Microsoft Corporation. All rights reserved.// Set up gauge headerchar engine_3_tank_selector_gauge_name[] = GAUGE_NAME;extern PELEMENT_HEADER engine_3_tank_selector_list;extern MOUSERECT engine_3_tank_selector_mouse_rect[];GAUGE_HEADER_FS700(GAUGE_W, engine_3_tank_selector_gauge_name, &engine_3_tank_selector_list, engine_3_tank_selector_mouse_rect, 0, 0, 0, 0);/////////////////////////////////////////////////////////////////////////////FLOAT64 FSAPI engine_3_tank_selector_icon_cb( PELEMENT_ICON pelement ){ switch (pelement->source_var.var_value.e) { case FUEL_TANK_SELECTOR_OFF: return 0; case FUEL_TANK_SELECTOR_LEFT: return 1; case FUEL_TANK_SELECTOR_ALL: return 2; case FUEL_TANK_SELECTOR_RIGHT: return 3; default: return 2; }}MAKE_ICON( engine_3_tank_selector_icon, BMP_engine_3_tank_selector_OFF, NULL, NULL, IMAGE_USE_ERASE | IMAGE_USE_TRANSPARENCY, 0, 0,0, FUEL_TANK_SELECTOR,engine_3_tank_selector_icon_cb, ICON_SWITCH_TYPE_STEP_TO, 4, 0, 0)PELEMENT_HEADER engine_3_tank_selector_icon_list[] ={ &engine_3_tank_selector_icon.header, NULL};/////////////////////////////////////////////////////////////////////////////MAKE_STATIC( engine_3_tank_selector_background, BMP_engine_3_tank_selector_OFF, engine_3_tank_selector_icon_list, NULL, IMAGE_USE_TRANSPARENCY | IMAGE_NO_STATIC_BLENDING, 0, 0, 0)PELEMENT_HEADER engine_3_tank_selector_list = &engine_3_tank_selector_background.header;/////////////////////////////////////////////////////////////////////////////MODULE_VAR engine_3_tank_selector_mouse_var = {FUEL_TANK_SELECTOR};BOOL FSAPI engine_3_tank_selector_mouse_cb( PPIXPOINT relative_point, FLAGS32 mouse_flags ){ lookup_var( &engine_3_tank_selector_mouse_var); switch (engine_3_tank_selector_mouse_var.var_value.e) { case FUEL_TANK_SELECTOR_LEFT: trigger_key_event( KEY_FUEL_SELECTOR_ALL, 0 ); break; case FUEL_TANK_SELECTOR_ALL: trigger_key_event( KEY_FUEL_SELECTOR_RIGHT, 0 ); break; case FUEL_TANK_SELECTOR_RIGHT: trigger_key_event( KEY_FUEL_SELECTOR_OFF, 0 ); break; case FUEL_TANK_SELECTOR_OFF: trigger_key_event( KEY_FUEL_SELECTOR_LEFT, 0 ); break; default: trigger_key_event( KEY_FUEL_SELECTOR_ALL, 0 ); break; } return TRUE;}MOUSE_BEGIN( engine_3_tank_selector_mouse_rect, HELPID_GAUGE_FUEL_SELECTOR, 0, 0 ) MOUSE_CHILD_FUNCT( 0,0,39,48, CURSOR_HAND, MOUSE_LEFTSINGLE, engine_3_tank_selector_mouse_cb )MOUSE_END/////////////////////////////////////////////////////////////////////////////#undef GAUGE_NAME#undef GAUGEHDR_VAR_NAME#undef GAUGE_W

Your mouse callback code is the issue.I have no idea what this "lookup_var( &engine_3_tank_selector_mouse_var);" does... and I don't know of an FS MODULE_VAR for the mouse.

I suspect that this is the structure you need:MODULE_VAR engine3_selector=RECIP_ENGINE3_TANK_SELECTOR;BOOL FSAPI engine_3_tank_selector_mouse_cb( PPIXPOINT relative_point, FLAGS32 mouse_flags ){ lookup_var(&engine3_selector); switch (engine3_selector.var_value.n) { case FUEL_TANK_SELECTOR_LEFT: trigger_key_event( KEY_FUEL_SELECTOR_ALL, 0 ); break;etc.-Dai

I was trying to be able to select all tanks from the #3 Enginethen select left main tank from the 3 engine and be able to selectthe tank for the proper tank depending on the diff phase of flightso i figured out that storing the variable in engine3 fuel valve I was able to select the tank using the mouse I got it to work exceptit only works in the default mode and the bitmaps don't change.Also when I try to save the flight it saves the #1 #2 both main tanksfor the proper engine except the #3 #4 Engine main tanks aren't savedand it saves them all Tanks for the 3 and 4 engines and what that doesis saves an unbalanced fuel load if you don't change it back to the #3 and #4 main tanks. I really need to save the Panel state. I tried to use a config.ini except it don't work i guess i don't know how to do it the bae 146 panel project seemed to make the panel state save. Here is what I did to get the mouse to work.// SDK.engine3_fuel_valve.c// Copyright © 2000 Microsoft Corporation. All rights reserved.// Set up gauge headerchar engine3_fuel_valve_gauge_name[] = GAUGE_NAME;extern PELEMENT_HEADER engine3_fuel_valve_list;extern MOUSERECT engine3_fuel_valve_mouse_rect[];GAUGE_HEADER_FS700(GAUGE_W, engine3_fuel_valve_gauge_name, &engine3_fuel_valve_list, engine3_fuel_valve_mouse_rect, 0, 0, 0, 0);/////////////////////////////////////////////////////////////////////////////FLOAT64 FSAPI engine3_fuel_valve_icon_cb( PELEMENT_ICON pelement ){ switch (pelement->source_var.var_value.e) { case KEY_FUEL_SELECTOR_3_OFF : return 0; case KEY_FUEL_SELECTOR_3_LEFT: return 2; case KEY_FUEL_SELECTOR_3_ALL: return 1; case KEY_FUEL_SELECTOR_3_RIGHT: return 3; default: return 3; }}MAKE_ICON( engine3_fuel_valve_icon, BMP_engine3_fuel_valve_OFF, NULL, NULL, IMAGE_USE_ERASE | IMAGE_USE_TRANSPARENCY, 0, 0,0, GENERAL_ENGINE3_FUEL_VALVE , engine3_fuel_valve_icon_cb, ICON_SWITCH_TYPE_STEP_TO, 4, 0, 0)PELEMENT_HEADER engine3_fuel_valve_icon_list[] ={ &engine3_fuel_valve_icon.header, NULL};/////////////////////////////////////////////////////////////////////////////MAKE_STATIC( engine3_fuel_valve_background, BMP_engine3_fuel_valve_OFF, engine3_fuel_valve_icon_list, NULL, IMAGE_USE_TRANSPARENCY | IMAGE_NO_STATIC_BLENDING, 0, 0, 0)PELEMENT_HEADER engine3_fuel_valve_list = &engine3_fuel_valve_background.header;/////////////////////////////////////////////////////////////////////////////MODULE_VAR engine3_fuel_valve_mouse_var = {GENERAL_ENGINE3_FUEL_VALVE};BOOL FSAPI engine3_fuel_valve_mouse_cb( PPIXPOINT relative_point, FLAGS32 mouse_flags ){ lookup_var( &engine3_fuel_valve_mouse_var); switch (engine3_fuel_valve_mouse_var.var_value.e) { case KEY_FUEL_SELECTOR_3_LEFT : trigger_key_event( KEY_FUEL_SELECTOR_3_ALL, 0 ); break; case KEY_FUEL_SELECTOR_3_ALL: trigger_key_event( KEY_FUEL_SELECTOR_3_RIGHT, 0 ); break; case KEY_FUEL_SELECTOR_3_RIGHT: trigger_key_event( KEY_FUEL_SELECTOR_3_OFF, 0 ); break; case KEY_FUEL_SELECTOR_3_OFF: trigger_key_event( KEY_FUEL_SELECTOR_3_LEFT, 0 ); break; default: trigger_key_event( KEY_FUEL_SELECTOR_3_RIGHT_MAIN, 0 ); break; } return TRUE;}MOUSE_BEGIN( engine3_fuel_valve_mouse_rect, HELPID_GAUGE_FUEL_SELECTOR, 0, 0 ) MOUSE_CHILD_FUNCT( 0,0,39,48, CURSOR_HAND, MOUSE_LEFTSINGLE, engine3_fuel_valve_mouse_cb )MOUSE_END/////////////////////////////////////////////////////////////////////////////#undef GAUGE_NAME#undef GAUGEHDR_VAR_NAME#undef GAUGE_W

The BAe146 uses a separate configuration gauge to save state data: http://msdn.microsoft.com/en-us/library/ms724353(VS.85).aspxhttp://msdn.microsoft.com/en-us/library/ms725501(VS.85).aspxHow many fuel selectors does your aircraft have? The problem may be in aircraft.cfg.Doug