Pass foreground rights to the emperor (#18325)

Forgetti di spaghetti in #18215. Closes #18324 ## Validation Steps Performed * Launch through the start menu * Explicitly minimize * Then... * Launch through the start menu again ✅ * Launch via wtd.exe in Win+R ✅ * Launch via wtd.exe in another Terminal ✅ * Launch via handoff ✅
microsoft · Dec 13, 2024 · 5006045 · 5006045
1 parent 19460f9
commit 5006045
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/src/cascadia/WindowsTerminal/WindowEmperor.cpp b/src/cascadia/WindowsTerminal/WindowEmperor.cpp
@@ -170,6 +170,14 @@ static wil::unique_mutex acquireMutexOrAttemptHandoff(const wchar_t* className,
                 .cbData = gsl::narrow<DWORD>(payload.size()),
                 .lpData = payload.data(),
             };
+
+            // Allow the existing instance to gain foreground rights.
+            DWORD processId = 0;
+            if (GetWindowThreadProcessId(hwnd, &processId) && processId)
+            {
+                AllowSetForegroundWindow(processId);
+            }
+
             if (SendMessageTimeoutW(hwnd, WM_COPYDATA, 0, reinterpret_cast<LPARAM>(&cds), SMTO_ABORTIFHUNG | SMTO_ERRORONEXIT, 5000, nullptr))
             {
                 return {};