Notes

// Apri un file cliccando su un bottone
- (IBAction)openFileManually:(id)sender {
// Loop counter.
int i;
// Create a File Open Dialog class.
NSOpenPanel* openDlg = [NSOpenPanel openPanel];
[openDlg setCanChooseFiles:YES];
//[openDlg setAllowedFileTypes:[NSArray arrayWithObjects: @"jpg",@"JPG",@"png", nil]];
[openDlg setAllowedFileTypes:nil];
[openDlg setAllowsMultipleSelection:TRUE];

// Display the dialog box. If the OK pressed,
// process the files.
if ([openDlg runModal] == NSOKButton) {
// Gets list of all files selected
NSArray *filesSelect = [openDlg URLs];
// Loop through the files and process them.
for( i = 0; i < [filesSelect count]; i++ ) {
// Do something with the filename.
NSLog(@"File path: %@", [[filesSelect objectAtIndex:i] path]);
// [self processFile:[[filesSelect objectAtIndex:i] path]];
}
}
}

// Apri un file when drag over bar icon
- (BOOL)application:(NSApplication *)theApplication openFile:(NSString *)filename {
return [self processFile:filename];
}

- (BOOL)processFile:(NSString *)file {
NSLog(@"The following file has been dropped or selected: %@", file);
return YES; // Return YES when file processed succesfull, else return NO.
}

- (BOOL)applicationShouldHandleReopen:(NSApplication *)theApplication hasVisibleWindows:(BOOL)flag {
[window makeKeyAndOrderFront:self];
return YES;
}

- (BOOL)applicationShouldTerminateAfterLastWindowClosed:(NSApplication *)sender {
return NO;
}

- (void)applicationDidBecomeActive:(NSNotification *)aNotification {
//dock icon has just been clicked , or cmd-tabbed into
}