How to close an alert after some time and repeat it every 10 min - macos

Question

In my MAC OSX application. I am throwing a an alert pop up asking user to select yes or no. if user doesnt click any of the choices and may drag it to some corner. So i wanted to autoclose it after some time and again show the same alert. so i can ensure him to take same action.
Alert code i am using is
-(bool)VpnStatusUnableToConnect:(NSString *)alertMessage
{
if (nil != alertMessage) {
NSImage *alertIcon = [NSImage imageNamed:#"dock-alert"]; //my custom image placed in support files
NSAlert *alert = [[NSAlert alloc]init];
[alert addButtonWithTitle:#"Try Again"];
[alert addButtonWithTitle:#"Cancel"];
[alert setMessageText:alertMessage];
[alert setAlertStyle:NSWarningAlertStyle];
[alert setIcon:alertIcon];
[[alert window] setTitle:#"VPN Connection Status"];
[[alert window] setBackgroundColor: NSColor.whiteColor];
if ( [alert runModal] == NSAlertFirstButtonReturn)
{
return 1;
}
else
return 0;
}
return 0;
}

Answer 1

Modify your code as below and give a try
-(void)yourAlert{
NSAlert *alert = [[NSAlert alloc] init];
[alert addButtonWithTitle: #"OK"];
[alert setMessageText: #"Attention!!! This a critical Alert."];
[alert setAlertStyle: NSInformationalAlertStyle];
NSTimer *myTimer = [NSTimer timerWithTimeInterval:3
target:self
selector: #selector(killWindow:)
userInfo:nil
repeats:YES];
[[NSRunLoop currentRunLoop] addTimer:myTimer forMode:NSModalPanelRunLoopMode];
int choice = 0;
choice = [alert runModal];
if(choice != 0)
[myTimer invalidate];
}
-(void) killWindow:(NSAlert *)alert with:(NSTimer *) theTimer;
{
NSLog(#"killWindow");
[[alert window] abortModal];
}