The following code works for me on 10.6.7. Leaving out any of the calls after
TransformProcessType result in the problem you describe.
ProcessSerialNumber psn;
pid_t pid = getpid();
OSStatus err;
err = GetProcessForPID(pid, &psn);
err = TransformProcessType(&psn,
kProcessTransformToForegroundApplication);
err = ShowHideProcess(&psn, true);
[NSMenu setMenuBarVisible:NO];
SetFrontProcess(&psn);
[NSMenu setMenuBarVisible:YES];
/Anders
On 2011-05-25, at 19:08 , Jerry Krinock wrote:
> I spent a couple hours last night re-disovering Apple Bug ID #5905139 which
> was supposedly opened three years ago by Mike Ash [1]. Mike said:
>
> "I set LSUIElement to 1 in my Info.plist and use TransformProcessType() to
> bump to a foreground application. This
> works except that it fails to show my app's menu bar. Switching to another
> program and back to mine makes it show correctly."
>
> He also said that he was doing the switch when the app launched. Actually,
> that works OK for me, so maybe that bug has been fixed as of 10.6.7.
> However, I have a more challenging requirement. My app launches as
> LSUIBackgroundOnly and can show a Status Item (aka menulet). My Status Item
> includes a "Show Menu" menu item. This item targets TransformProcessType().
> So you see the transformation may occur hours after launch. It is only after
> this delayed transform that I see the problem; the user needs to activate 1-2
> other apps and return to mine before my menu shows. As Mike found, it's
> worse if the app was spawned by Xcode/gdb.
>
> So I tried all kinds of things last night: -activateIgnoringOtherApps:YES of
> course, iterating through all of the -[NSApp windows] and sending them each
> of them a -display, -makeKeyAndOrderFront:YES. Nada. I machine-gunned them
> with loops and delays, and finally broke out NSAppleScript and tried
> alternately activating my app and the currently active application. Still no
> good.
>
> Since users will do this rarely or more likely never, I wouldn't mind
> programatically cycling through their frontmost, 2nd-frontmost and
> 3rd-frontmost apps if I knew what they were so I could restore them to their
> prior order. But even the shiny new -[NSWorkspace runningApplications]
> documentation says that "the order of the array is unspecified". (Arghh!
> Why?) System Events gives no more than the one active application either.
>
> But that may not work anyhow. Can anyone think of any other bricks I could
> try throwing at this?
>
> Thanks,
>
> Jerry Krinock
>
> [1]
> http://www.cocoabuilder.com/archive/cocoa/205558-transformprocesstype-fails-to-show-menu-bar.html?q=TransformProcessType#205558_______________________________________________
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