[R-SIG-Mac] R GUI and Quartz

[Randy Lai]

an additional semi colon is the last post.

- (void)windowWillCloseNotifications:(NSNotification*) aNotification
{

	NSWindow *w = [aNotification object];
    
    if (w && [[(NSObject*)[w delegate] className] isEqualToString:@"QuartzCocoaView"])
         [w retain];

On Nov 13, 2013, at 2:10 PM, Randy Lai <randy.cs.lai at gmail.com> wrote:

> I figured it out. The window instance will be released in the main R, so we have to retain the instance until it is released.
> Otherwise, the window will be released twice.
> 
> - (void)windowWillCloseNotifications:(NSNotification*) aNotification
> {
> 
> 	NSWindow *w = [aNotification object];
> 
>    if (w && [[(NSObject*)[w delegate] className] isEqualToString:@"QuartzCocoaView"]);
>         [w retain];
> 
> 
> On Nov 13, 2013, at 12:07 PM, Randy Lai <randy.cs.lai at gmail.com> wrote:
> 
>> I meant the method windowWillCloseNotifications in RDocumentController.m
>> 
>> 1. change “QuartzCocoaView” to something otherwise to avoid it being invoked,
>> 2. compile the R GUI
>> 3. run the plot function, e.g. plot(1,1)
>> 4. close the quartz
>> 
>> you will see the error  EXC_HAD_ACCESS (code=EXC_i386_GPFLT).
>> 
>> there may be a memory leak in R code!?
>> 
>> 
>> On Nov 13, 2013, at 6:26 AM, Simon Urbanek <simon.urbanek at r-project.org> wrote:
>> 
>>> On Nov 13, 2013, at 6:54 AM, Randy Lai <randy.cs.lai at gmail.com> wrote:
>>> 
>>>> Hi all,
>>>> 
>>>> I am studying the R GUI code and I have a question about Quartz.
>>>> 
>>>> It seems that R GUI will add a dummy Quartz Cocoa window before the quartz is closed.
>>>> What is the reason behind?
>>>> 
>>> 
>>> Can you supply some details as of what you're looking at? The GUI is no longer driving Quartz, so I'm not sure what code you have in mind.
>>> 
>>> Cheers,
>>> Simon
>>> 
>>> 
>>> 
>>> 
>>>> I have tried compiled the code without this part, it raises an error for EXC_HAD_ACCESS (code=EXC_i386_GPFLT).
>>>> 
>>>> Randy
>>>> _______________________________________________
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>>>> R-SIG-Mac at r-project.org
>>>> https://stat.ethz.ch/mailman/listinfo/r-sig-mac
>>>> 
>>> 
>> 
>