Thanks, that was exactly what I needed.
----- Original Message ---- From: Laurent Etiemble <[email protected]> To: [email protected] Sent: Sunday, 13 September, 2009 5:23:13 PM Subject: Re: [[email protected]] NSTimer fire event selector Hello, The IntPtr parameter does take a selector. With Monobjc, a selector can be obtained from its string representation with the ObjectiveCRuntime.Selector() method (http://api.monobjc.net/html/M_Monobjc_ObjectiveCRuntime_Selector_1_72eac341.htm). So you code needs to be changed to: ... nsCountdown = NSTimer.ScheduledTimerWithTimeIntervalTargetSelectorUserInfoRepeats(1, this, ObjectiveCRuntime.Selector("countdownTick:"), nsCountdown), null, true); ... Then define a public method CountdownTick() that is exposed to Objective-C runtime: [ObjectiveCMessage("countdownTick:")] // <= The selector message is the one used in the schedule method public void CountdownTick(NSTimer theTimer) { // Do the work here... } Hope it helps. Regards, Laurent Etiemble. 2009/9/13 <[email protected]>: > Hi, > > I'm trying to make an NSTimer which fires every second using: > > nsCountdown = > NSTimer.ScheduledTimerWithTimeIntervalTargetSelectorUserInfoRepeats(1, this, > countdownTick(), nsCountdown), null, true); > > Which builds fine if I make countdownTick() return an IntPtr, but it only > calls it once then I get errors saying: > > "-[MainWindow <null selector>]: unrecognized selector sent to instance" > > so I guess I need to specify a selector somehow, rather than just putting in > the name of the method I want called when the timer fires. > > I guess this has something to do with an IntPtr (as this is the type of the > variable I need to pass to the > 'ScheduledTimerWithTimeIntervalTargetSelectorUserInfoRepeats' Selector value) > or even an NSInvocation as there's another option of > 'ScheduledTimerWithTimeIntervalInvocationRepeats' that takes an invocation > instead of a target and selector. > > I know in Objective-C I would just use 'Self' as the target and > '@selector("countdownTick")' as the selector but what do I do in C#? > > Thanks, > > Russell > >
