Memory Leak in initWithContentRect and setContentView - objective-c

Question

In my application, I am creating a window and setting a content view. Inspector is showing me some memory leaks.
In setContentView: I think it releases previous NSView.
My code is given below:
//contentrect is NSRect which is already initialized.
//stylemask is NSUInteger which is also initialized.
//window_ is of NSWindow type.
window_ = [NSWindow alloc];
//Here, I am getting memory leak.
window_ = [window_ initWithContentRect:contentrect styleMask:stylemask
backing:NSBackingStoreBuffered defer:NO];
//Set window delegate to receive close notication.
[window_ setDelegate:delegate_];
//I believe this is the behavior is by default.
//[window_ setReleasedWhenClosed:YES];
//Setting the windows title.
[window_ setTitle:title_];
//Setting the window frame screenrect which is also initialized.
[window_ setFrame:screenrect display:YES animate:YES];
//MyView is inherited from NSView.
//Set MyView instead of default NSView.
//Set as it have same content rectangle.
contentrect = [[window_ contentView] frame];
//Allocate MyView.
MyView * view = [[MyView alloc] initWithFrame:contentrect];
[window_ setContentView:view];
[rWindow orderFront:nil];
Edit:
I am not getting memory leak in setContentView which I called, but in setContentView which is called inside as initWithContentRect.

Answer 1

You have to balance retain/release count
you have to release window_ somewhere, one place will be in dealloc
- (void)dealloc
{
[window_ release]; window_ = nil;
// other releases
[super dealloc];
}
it is a bad idea to alloc init in different line
similarly, you have to release your view by add [view release]; after setContentView
or autorelease it
MyView * view = [[[MyView alloc] initWithFrame:contentrect] autorelease];
if you have no idea how management works in Objective-C, you better switch to ARC first and learn details about how it works.