ok button for alert in mac app does not work

Question

On a button click, I am using the below code testViewController *myWindowController = [[testViewController alloc] initWithWindowNibName:@"RecordingsViewController"]; [myWindowController setDelegate:self]; activeModalWindow = [myWindowController window]; [NSApp beginSheet:[myWindowController window] modalForWindow:[self window] modalDelegate:self didEndSelector:@selector(sheetDidEnd:returnCode:contextInfo:) contextInfo:nil]; [NSApp runModalForWindow:[myWindowController window]]; [[myWindowController window] orderOut: self]; From this testViewController, I am showing an alert using the code NSString *theAlertMessage = [NSString stringWithFormat: @"Already added"]; NSRunAlertPanel(@"", theAlertMessage, @"OK", nil, nil); But on clicking ok button of this alert. My alert remains on screen. Please help! JavaScript questions and answers, JavaScript questions pdf, JavaScript question bank, JavaScript questions and answers pdf, mcq on JavaScript pdf, JavaScript questions and solutions, JavaScript mcq Test , Interview JavaScript questions, JavaScript Questions for Interview, JavaScript MCQ (Multiple Choice Questions)

Answer 1

Use this to as : NSAlert *alert = [[NSAlert alloc] init]; [alert setAlertStyle:2]; [alert setMessageText:@"Already added"]; [alert beginSheetModalForWindow:[(AppDelegate *)[[NSApplication sharedApplication] delegate] window] modalDelegate:self didEndSelector:@selector(sheetDidEnd:returnCode:contextInfo:) contextInfo:nil]; } - (void)sheetDidEnd:(NSAlert *)alert returnCode:(int)returnCode contextInfo:(void *)contextInfo { NSLog(@"clicked %d button\n", returnCode); } Hope it helps you.