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Figure 15-5. Adding the installer 3. Select the Add Installer menu item. This will generate ProjectInstaller.cpp and ProjectInstaller.h. 4. Double-click ProjectInstaller.h in the Solution Explorer to switch to the Design view of the ProjectInstaller. 5. Select the serviceInstaller1 component. 6. Set the ServiceName property to SimpleWinService if it isn t set to that already. 7. Set the StartType property to Automatic if you want the service to start automatically on start-up or leave it as manual if you want the user to start the Windows service. (You might want to leave it as manual for now, as you will most probably be continually starting and stopping the service manually. Once everything is working properly, switch the property to Automatic.) 8. Select the serviceProcessInstaller1 component. 9. Set the Account property to the security context that most suits the need of the Windows service. (Being lazy, I usually just set this to LocalSystem or NetworkService during development and then change it to something more appropriate during final testing and release.) 10. Build your Windows service.

Note You must add using System.Data, using System.Data.SqlClient, and using System.Configuration in the using section. Also, you need to make sure the connection string name matches the one in your Web.config file.

For those of you who are interested, the autogenerated code for ProjectInstall.cpp is shown in Listing 15-5, and ProjectInstaller.h is shown cleaned up in Listing 15-6. Listing 15-5. Autogenerated ProjectInstall.cpp #include "StdAfx.h" #include "ProjectInstaller.h" Listing 15-6. Autogenerated ProjectInstall.h #pragma once using using using using namespace namespace namespace namespace System; System::ComponentModel; System::Collections; System::Configuration::Install;

Figure 4 7. Various paths constructed from B zier curves, using the Freehand, Ellipse, and Pencil tools

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namespace Simple { [RunInstaller(true)] public ref class ProjectInstaller : public System::Configuration::Install::Installer { public: ProjectInstaller(void) { InitializeComponent(); } protected: ~ProjectInstaller() { if (components) { delete components; } } private: System::ServiceProcess::ServiceProcessInstaller^ serviceProcessInstaller1; System::ServiceProcess::ServiceInstaller^ serviceInstaller1; System::Diagnostics::EventLogInstaller^ eventLogInstaller1; System::ComponentModel::Container ^components; #pragma region Windows Form Designer generated code void InitializeComponent(void) { this->serviceProcessInstaller1 = (gcnew System::ServiceProcess::ServiceProcessInstaller()); this->serviceInstaller1 = (gcnew System::ServiceProcess::ServiceInstaller()); this->eventLogInstaller1 = (gcnew System::Diagnostics::EventLogInstaller());

4. Press F5 and start the application (you may need to do some debugging). The directory listing will display for MyWebService. 5. Click MyService.asmx. This time, select GetCityName for the test parameter page. Enter a valid database value for the zip code parameter and click Invoke. The simple database result is returned, as shown in Figure 8-23.

// // serviceProcessInstaller1 // this->serviceProcessInstaller1->Account = System::ServiceProcess::ServiceAccount::LocalSystem; this->serviceProcessInstaller1->Password = nullptr; this->serviceProcessInstaller1->Username = nullptr; // // serviceInstaller1 // this->serviceInstaller1->ServiceName = L"SimpleWinService"; // // ProjectInstaller // this->Installers->AddRange( gcnew cli::array<System::Configuration::Install::Installer^>(2) { this->serviceProcessInstaller1, this->serviceInstaller1 }); } #pragma endregion }; } Now you should have a Windows service that you can finally install and run unless you have added resources to your Windows service that also need to be installed, like the system event log. To install the system event log, switch to the Design view of SimpleWinService.h again, right-click the eventLog1 component, and select Add Installer. Now rebuild the project, and you will have a Windows service ready to be installed. The first thing you do is navigate in the Visual Studio Command console window to the directory where your Windows service assembly is located. How you install your Windows services depends on which version of SimpleWinService.cpp you used, though behind the scenes, you are doing the same thing. To install your Windows service using the default template version, you use the command Simple.exe Install at the command line. (To uninstall, you use the command Simple Install u.) For the safe code version, you use the command InstallUtil Simple.exe at the command line to install the Windows service. (To uninstall, you use the command InstallUtil u Simple.exe.)

Windows Vista users take note! You need to run the Command Prompt as an Administrator to install Windows services. Therefore, don t just click Start Command Prompt; instead, right-click and select Run as Administrator. If you don t do this, your Windows service will fail to load and will issue an error like this one:

The iOS new functionality for rendering to a PDF file means that anything you can draw to the screen using UIView can now be drawn straight into a PDF file. Here, you ll learn how to do so by wrapping your drawing code in a special PDF-generation context.

Now that your web service is working with the database, you still need to add a front-end to the application. For simplicity, let s add a web application to the application diagram.

System.InvalidOperationException: Cannot open Service Control Manager on computer. This operation might require other privileges. The inner exception System.ComponentModel.Win32Exception was thrown with the following error message: Access is denied"

(I lost a lot of hair trying to figure that out.)

You ll add the web application, and then follow the same pattern for the web application implementation as you did for the web service implementation. 1. Return to your MyDesign application diagram.

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