On Feb 23, 2010, at 3:26 PM, Charles Srstka wrote:
On Feb 23, 2010, at 2:25 PM, Steve Christensen wrote:
As others have already pointed out, it's your choice of whether or
not to support a deprecated API method. When I decide to use OS
version-specific API methods, I code as follows. The benefit is
that, when you decide to support a minimum of 10.6, the code to
support older OS versions is automatically stripped out at compile
time.
#if MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_6
if (![panel
respondsToSelector
:@selector(beginSheetModalForWindow:completionHandler:)])
{
// code to run on Leopard and earlier
[panel beginSheetForDirectory: @"/Users/whatever/Pictures/"
file: @"Untitled"
modalForWindow: mWindow
modalDelegate: self
didEndSelector:
@selector(sheedDidEnd:returnCode:contextInfo:)
contextInfo: nil];
}
else
#endif
{
// code to run on Snow Leopard or later
[panel setDirectoryURL: @"/Users/whatever/Pictures/"];
[panel setNameFieldStringValue:@"Untitled"];
[panel beginSheetModalForWindow:mWindow
completionHandler:^(NSInteger returnCode) {
[panel orderOut:self];
[self didEndPathSelectorSheet:
returnCode
filename:
[ [panel URL] relativePath] ];
} ];
}
That code uses blocks, though, which implies that it will be
compiled using a later version of Objective-C. Will that code really
run on older versions of OS X?
The compile-time conditional assumes that you're building against the
10.6 SDK (or later). Obviously if you're going to support both cases,
you'll need to use a compiler configuration that is compatible with
all the OS versions you plan to support.
_______________________________________________
Cocoa-dev mailing list (Cocoa-dev@lists.apple.com)
Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com
This email sent to arch...@mail-archive.com
