Fix second-instance window raise bypassing focus-steal preventionHEADmaster

Replace raise()+setActiveWindow() with KWin::forceActiveWindow(),
which sends _NET_ACTIVE_WINDOW at pager priority so the WM brings
the window to the front instead of flashing the taskbar.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/ui/tmixapp.cpp b/src/ui/tmixapp.cpp
index 628e475..20c509e 100644
--- a/src/ui/tmixapp.cpp
+++ b/src/ui/tmixapp.cpp
@@ -1,5 +1,6 @@
 #include "tmixapp.h"
 #include "mixerwindow.h"
+#include <twin.h>
 
 TmixApp::TmixApp() : KUniqueApplication(), m_win(0), m_firstInstance(true) {}
 
@@ -11,8 +12,7 @@ int TmixApp::newInstance()
     }
     if ( m_win ) {
         m_win->show();
-        m_win->raise();
-        m_win->setActiveWindow();
+        KWin::forceActiveWindow( m_win->winId() );
     }
     return 0;
 }