On Nov 23, 2009, at 6:51 PM, Darren Wheatley wrote:
> I have the following code as the action from a button click:
>
> - (IBAction)chooseFile:(id)sender;
> {
> NSOpenPanel *openPanel = [NSOpenPanel openPanel];
You haven't retained this panel. If you want this object to live beyond the
current autorelease context, you need to retain it. (Note that not retaining
doesn't guarantee that it _will_ be released at the end of the autorelease
context, just that it might.)
> [openPanel setCanChooseDirectories:NO];
> [openPanel setCanCreateDirectories:NO];
> [openPanel beginSheetForDirectory:nil
> file:nil
> types:[NSArray arrayWithObject:@"txt"]
> modalForWindow:window
> modalDelegate:self
>
> didEndSelector:@selector(fileOpenDidEnd:returnCode:context:)
> contextInfo:nil];
> }
>
> - (void)fileOpenDidEnd:(NSOpenPanel*)openPanel
> returnCode:(NSInteger)code
> context:(void*)context
> {
> if (code == NSCancelButton) return;
> [self setFilePath:[openPanel filename]];
> [filePathField setStringValue:[openPanel filename]];
> }
Regards,
Ken
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