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3.3 Our First Application

We are ready now to create our first gui application:

#include <Foundation/Foundation.h>
#include <AppKit/AppKit.h>

@interface MyDelegate : NSObject
- (void) applicationWillFinishLaunching: (NSNotification *)not;
@end

@implementation MyDelegate : NSObject 
- (void) applicationWillFinishLaunching: (NSNotification *)not
{
  NSMenu *menu;
  
  menu = AUTORELEASE ([NSMenu new]);
  [menu addItemWithTitle: @"Quit"  
        action: @selector (terminate:)  
        keyEquivalent: @"q"];
  [NSApp setMainMenu: menu];
}
@end

int main (int argc, const char **argv)
{ 
  [NSApplication sharedApplication];
  [NSApp setDelegate: [MyDelegate new]];

  return NSApplicationMain (argc, argv);
}

Put this code for example into a file called MyApp.m, and use the following GNUmakefile for it:

include $(GNUSTEP_MAKEFILES)/common.make

APP_NAME = MyFirstApp
MyFirstApp_OBJC_FILES = MyApp.m 

# Uncomment the following if you have an icon
#MyFirstApp_APPLICATION_ICON = MyApp.png
#MyFirstApp_RESOURCE_FILES = MyApp.png

include $(GNUSTEP_MAKEFILES)/application.make

Compile it, then run it using openapp ./MyFirstApplication.app (see the GNUmakefile mini-tutorial for further information on writing GNUmakefiles).