[Feature request] Adding the ability to reuse the AUMID of the current process.

[prachtan]

In case of using the WinToast lib in extensions, it wold be great to use AUMID from existing parent app shortcut.

bool WinToast::GetAUMIdForCurrentProcess(_Out_ std::wstring& aumid)
{
	if (!isCompatible()) {
		DEBUG_MSG(L"Warning: Your system is not compatible with this library ");
		return(false);
	}

	// Thanks to:
	// https://stackoverflow.com/questions/59926644/listing-of-installed-apps-on-windows-10
	//

	HRESULT hr = E_FAIL;
	std::wstring exePath(MAX_PATH, 0);
	DWORD written = GetModuleFileNameExW(GetCurrentProcess(), nullptr, &exePath[0], MAX_PATH);
	exePath.resize(written);

	CoInitialize(NULL);
	ComPtr<IShellItem> folder;
	if (SUCCEEDED(hr = SHCreateItemFromParsingName(L"shell:appsFolder", nullptr, IID_PPV_ARGS(&folder))))
	{
		ComPtr<IEnumShellItems> enumItems;
		if (SUCCEEDED(hr = folder->BindToHandler(nullptr, BHID_EnumItems, IID_PPV_ARGS(&enumItems))))
		{
			IShellItem* items;
			while (enumItems->Next(1, &items, nullptr) == S_OK)
			{
				// Get executable path.
				ComPtr<IShellItem> item = items;
				ComPtr<IPropertyStore> store;
				if (SUCCEEDED(item->BindToHandler(NULL, BHID_PropertyStore, IID_PPV_ARGS(&store))))
				{
					wchar_t pvString[MAX_PATH] = { 0 };

					PROPVARIANT propVarPath;
					PropVariantInit(&propVarPath);
					if (SUCCEEDED(store->GetValue(PKEY_Link_TargetParsingPath, &propVarPath)))
					{
						hr = DllImporter::PropVariantToString(propVarPath, pvString, MAX_PATH);
						PropVariantClear(&propVarPath);

						// Compare path.
						if (exePath == pvString)
						{
							PROPVARIANT appIdPropVar;
							PropVariantInit(&appIdPropVar);

							if (SUCCEEDED(hr = store->GetValue(PKEY_AppUserModel_ID, &appIdPropVar)))
							{
								hr = DllImporter::PropVariantToString(appIdPropVar, pvString, MAX_PATH);
								PropVariantClear(&appIdPropVar);

								if (SUCCEEDED(hr))
								{
									aumid = pvString;
									break;
								}
							}
						}
					}
				}
			}
		}
	}

	CoUninitialize();

	return(SUCCEEDED(hr));
}

[mohabouje]

Thanks for the contribution; I have scheduled this change for version v1.4.0.

Closing this issue and moving it to #86