Is there a way for the code in a forever button to recognize that the button was released? I would like to terminate the button's operations cleanly when the user wants it to stop.
I realize that when a forever button is released, its code completes, but that doesn't tell me whether it will repeat again.
Thanks.
In short: no, there is no way to do this.
Related
In my HTA, I hold it it open if an error occurred, and close it if everything was successful. At the start, I have the sysmenu property set to no because I do not want the user to close the HTA until it's finished. At the end, I want them to be able to click on the close button. Here's what I typed up to try to achieve this, but it doesn't seem to work? I suspect there is something I need to do to get the HTA to refresh it's windows properties?
Please note that any solution that completely reloads the window and/or makes the script execute again is not acceptable
If Not bHoldOpen Then
Call window.close
Else
Dim tagHTA
Set tagHTA = document.getElementsByTagName("hta:application").item(0)
Call tagHTA.setAttribute("sysmenu","yes")
End If
You cannot change it at runtime, its only available in the HTA: block as its value is used to determine how the physical window is to be initially created.
I thought you could produce a warning using the onBeforeUnload event & call cancelBubble to abort the close, but I tried it in IE8 and it still seems bugged; http://support.microsoft.com/kb/946214.
It would probably be simpler and easier for the user to comprehend if you were yo just unhide a "Close" button when the process completed.
I am using Core Graphics for my Paint App school project and i want it to have an undo button
but i don't know how, it's my first time to get this close to Objective C, any help?
i already have the button connected to its outlet and sent event, the code now is my problem.
thanks in advance!
You need to read up on NSUndoManager.
I didn't clear your question ,my assumption is when you pain with some colors in the view,you have to undo right?so you want to code cancel the last touch event of the view.The basic idea is cancel last touch.You can code it in tozuchevent delegates and call by that cede in button.
In our app, in some cases, textFieldDidEndEditing is not being fired. After some debugging, it was easy to see the reason why....textFieldShouldEndEditing was returning NO when the current field is deemed invalid or in other words returning no from textFieldShouldEndEditing.
In the normal case, this behavior works just fine. However, if the user tries to cancel out of the form all together without every fixing the data problem flagged in textFieldShouldEndEditing, some critical code in textFieldDidEndEditing is never being called because that event never fires if textFieldShouldEndEditing=NO;
Can anyone provide some suggestions on how to deal with this case?
Thanks.
Do an [yorTextField resignFirstResponder]; when user try to cancel.
this seems to work....setting an instance variable when the user presses cancel and then using that in textFieldShouldEndEditing ie. = YES
My iPhone app has a tabBar at the bottom.
The 5th tab is rarely used... but pretty memory-intensive... so I want to make it UNLOAD each time it is exited (by the user clicking on a different tab).
But how?
I thought I just needed to call "[self viewDidUnload]" but that doesn't seem to do it.
Where is the "forceThisViewToUnload" and where should I put it?
i think you can call didReceiveMemoryWarning but its bit hacky way :)
just make sure it's not referenced anywhere.
so remomve it from the view-stack, and if you own it, send it a release message.
i have a form button in the form,which i need to perform basic action performed by the back button in the android emulator.
I know the key even is KeyEvent.KEYCODE_BACK
how to assign this to my button.
thanks in advance.
The question isn't totally clear, but you probably just want to call finish() when your Button is clicked.
I found the solution to it.
call the function moveTaskToBack(true);
to get back to previous task.