Release v0.6.27: menu and Alt access keys

tests/input.cpp

@@ -627,6 +627,24 @@ int main(int argc, char **argv) {
             require(fitted.left==-600&&fitted.top==680&&fitted.right==0,"negative-coordinate monitor supported");
             ks::showSettings(app,false);
             require(GetDlgItem(app.settingsWindow,258)!=nullptr,"sync available without local opt-in");
+            // Mnemonics only target visible controls; show without taking foreground focus.
+            ShowWindow(app.settingsWindow,SW_SHOWNOACTIVATE);
+            auto previousActive=SetActiveWindow(app.settingsWindow);
+            auto awakeBefore=SendDlgItemMessageW(app.settingsWindow,205,BM_GETCHECK,0,0);
+            MSG accessKey{}; accessKey.hwnd=GetDlgItem(app.settingsWindow,201);
+            accessKey.message=WM_SYSCHAR; accessKey.wParam=L'k'; accessKey.lParam=1LL<<29;
+            require(IsDialogMessageW(app.settingsWindow,&accessKey),"Alt+K is handled as a dialog access key");
+            MSG dispatched{};
+            while(PeekMessageW(&dispatched,nullptr,0,0,PM_REMOVE)) { TranslateMessage(&dispatched); DispatchMessageW(&dispatched); }
+            require(SendDlgItemMessageW(app.settingsWindow,205,BM_GETCHECK,0,0)!=awakeBefore,
+                    "Alt+K toggles Keep screen awake");
+            IsDialogMessageW(app.settingsWindow,&accessKey);
+            while(PeekMessageW(&dispatched,nullptr,0,0,PM_REMOVE)) { TranslateMessage(&dispatched); DispatchMessageW(&dispatched); }
+            require(SendDlgItemMessageW(app.settingsWindow,205,BM_GETCHECK,0,0)==awakeBefore,
+                    "repeated access key restores checkbox state");
+            ShowWindow(app.settingsWindow,SW_HIDE);
+            SetActiveWindow(previousActive);
+
             DestroyWindow(app.settingsWindow);
             ks::saveSyncConfig(app.data,ks::SyncConfig{});
             ks::showSettings(app,false);