| 40 | } |
| 41 | |
| 42 | TaskViewVisibilityMonitor::unique_view_service TaskViewVisibilityMonitor::LoadViewService() noexcept |
| 43 | { |
| 44 | // if we get injected at process creation, it's possible the immersive shell isn't ready yet. |
| 45 | // try until it is ready. if after 10 seconds the class is still not registered, it's most likely |
| 46 | // an issue other than process init not being done. |
| 47 | wil::com_ptr_failfast<IServiceProvider> servProv; |
| 48 | uint8_t attempts = 0; |
| 49 | HRESULT hr = S_OK; |
| 50 | do |
| 51 | { |
| 52 | hr = CoCreateInstance(CLSID_ImmersiveShell, nullptr, CLSCTX_INPROC_SERVER, IID_PPV_ARGS(servProv.put())); |
| 53 | if (SUCCEEDED(hr)) |
| 54 | { |
| 55 | break; |
| 56 | } |
| 57 | else |
| 58 | { |
| 59 | ++attempts; |
| 60 | Sleep(500); |
| 61 | } |
| 62 | } |
| 63 | while (hr == REGDB_E_CLASSNOTREG && attempts < 20); |
| 64 | FAIL_FAST_IF_FAILED(hr); |
| 65 | |
| 66 | // on Windows 11, we frequently get not implemented if this is done too early, so apply the same treatment for the QueryService call. |
| 67 | attempts = 0; |
| 68 | hr = S_OK; |
| 69 | do |
| 70 | { |
| 71 | hr = servProv->QueryService(SID_MultitaskingViewVisibilityService, s_ViewService.put()); |
| 72 | if (SUCCEEDED(hr)) |
| 73 | { |
| 74 | return unique_view_service(); |
| 75 | } |
| 76 | else |
| 77 | { |
| 78 | ++attempts; |
| 79 | Sleep(500); |
| 80 | } |
| 81 | } |
| 82 | while (hr == E_NOTIMPL && attempts < 20); |
| 83 | FAIL_FAST_HR(hr); |
| 84 | } |
| 85 | |
| 86 | TaskViewVisibilityMonitor::unique_multitasking_view_visibility_token TaskViewVisibilityMonitor::RegisterSink() noexcept |
| 87 | { |