Method SetAttribute

TranslucentTB/taskbar/taskbarattributeworker.cpp:545–614

}

void TaskbarAttributeWorker::SetAttribute(taskbar_iterator taskbar, TaskbarAppearance config)
{
	if (m_TaskbarService)
	{
		if (config.Accent == ACCENT_NORMAL)
		{
			HresultVerify(m_TaskbarService->ReturnTaskbarToDefaultAppearance(taskbar->second.Taskbar.TaskbarWindow), spdlog::level::info, L"Failed to restore taskbar to normal");
		}
		else if (config.Accent == ACCENT_ENABLE_BLURBEHIND)
		{
			HresultVerify(m_TaskbarService->SetTaskbarBlur(taskbar->second.Taskbar.TaskbarWindow, config.Color.ToABGR(), config.BlurRadius / 3), spdlog::level::info, L"Failed to set taskbar brush");
		}
		else
		{
			auto color = config.Color;
			TaskbarBrush brush = SolidColor;

			if (config.Accent == ACCENT_ENABLE_ACRYLICBLURBEHIND)
			{
				brush = Acrylic;
			}
			else if (config.Accent == ACCENT_ENABLE_GRADIENT)
			{
				color.A = 0xFF;
			}

			HresultVerify(m_TaskbarService->SetTaskbarAppearance(taskbar->second.Taskbar.TaskbarWindow, brush, color.ToABGR()), spdlog::level::info, L"Failed to set taskbar brush");
		}
	}
	else
	{
		const auto window = taskbar->second.Taskbar.TaskbarWindow;

		if (config.Accent != ACCENT_NORMAL)
		{
			m_NormalTaskbars.erase(window);

			const bool isAcrylic = config.Accent == ACCENT_ENABLE_ACRYLICBLURBEHIND;
			if (isAcrylic && config.Color.A == 0)
			{
				// Acrylic mode doesn't likes a completely 0 opacity
				config.Color.A = 1;
			}

			ACCENT_POLICY policy = {
				config.Accent,
				static_cast<UINT>(isAcrylic ? 0 : 2),
				config.Color.ToABGR(),
				0
			};

			const WINDOWCOMPOSITIONATTRIBDATA data = {
				WCA_ACCENT_POLICY,
				&policy,
				sizeof(policy)
			};

			if (!SetWindowCompositionAttribute(window, &data)) [[unlikely]]