Support for opening saves/scenarios in Windows by dropping them on the app icon

src/pcedit/pc.appleevents.mm

@@ -23,8 +23,8 @@ extern fs::path file_in_mem;
 -(NSApplicationTerminateReply)applicationShouldTerminate:(NSApplication*) sender;
 @end
 
-void set_up_apple_events(); // Suppress "no prototype" warning
-void set_up_apple_events() {
+void set_up_apple_events(int argc, char* argv[]); // Suppress "no prototype" warning
+void set_up_apple_events(int, char*[]) {
 	AppleEventHandler* aeHandler = [[AppleEventHandler alloc] init];
 	[[NSApplication sharedApplication] setDelegate: aeHandler];
 }

src/pcedit/pc.main.cpp

@@ -54,14 +54,14 @@ void Handle_Activate();
 void Handle_Update();
 void Mouse_Pressed();
 bool verify_restore_quit(std::string dlog);
-void set_up_apple_events();
+void set_up_apple_events(int argc, char* argv[]);
 extern bool cur_scen_is_mac;
 extern fs::path progDir;
 short specials_res_id;
 char start_name[256];
 
 //MW specified return type was 'void', changed to ISO C style for Carbonisation -jmr
-int main(int /*argc*/, char* argv[]) {
+int main(int argc, char* argv[]) {
 	try {
 		init_directories(argv[0]);
 		init_menubar();
@@ -72,7 +72,7 @@ int main(int /*argc*/, char* argv[]) {
 		init_graph_tool();
 		init_snd_tool();
 		
-		set_up_apple_events();
+		set_up_apple_events(argc, argv);
 		
 		cDialog::init();
 		redraw_screen();

src/pcedit/pc.menus.win.cpp

@@ -170,3 +170,21 @@ LRESULT CALLBACK menuProc(HWND handle, UINT message, WPARAM wParam, LPARAM lPara
 	}
 	return CallWindowProc(reinterpret_cast<WNDPROC>(mainProc), handle, message, wParam, lParam);
 }
+
+#include "fileio.hpp"
+#include "pc.fileio.hpp"
+
+extern bool party_in_scen, scen_items_loaded;
+extern fs::path file_in_mem;
+void set_up_apple_events(int argc, char* argv[]) {
+	if(argc > 1) {
+		if(load_party(argv[1], univ)) {
+			file_in_mem = argv[1];
+			party_in_scen = !univ.party.scen_name.empty();
+			if(!party_in_scen) load_base_item_defs();
+			scen_items_loaded = true;
+			update_item_menu();
+			menu_activate();
+		}
+	}
+}