ASP.NET Web PDF Document Viewer/Editor Control Library

Suppose you want to install a set of plugins located in the subdirectory plugins relative to the project file When the application has been installed, you want these files to be located in /usr/local/myapplication/plugins Specify it as follows, where the last line adds the plugins install set to the install make target: pluginsfiles = plugins/* pluginspath = /usr/local/myapplication/plugins INSTALLS += plugins You also want to have a list of the plugins in a file called pluginslst, which is what the extra subvalue is used for It enables you to specify a list of commands to run before the files are copied By adding the following line, that list is created before the plugins are copied into place: pluginsextra = rm -f /plugins/pluginslst; ls -1 /plugins > /plugins/pluginslst The line consists of an rm command that removes any existing plugins.

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You won t necessarily write the code at both ends of a connection. You might build a .NET client which talks to a web service provided by someone else. For example, you could write a WPF frontend to an online social media site such as Twitter, or a Silverlight client that accesses an external site such as Digg.

In this case, your choice of communication technology will be determined largely by the service you re connecting to. If it presents information in a way that WCF is able to consume, use WCF. How would you know that this is the case You could try asking the service provider s support staff if their service works with WCF, but if they re not sure, it ll be down to the nature of the service. If your service provider uses the so-called WS-* family of web service standards, there s a good chance WCF will be able to talk to the service.

If you were hoping for something more definitive than a good chance, you re out of luck. The mere fact that two systems have both opted to use the same set of standards is no guarantee that they ll be able to communicate successfully, even if both ends conform strictly to the standards. If this information is news to you, welcome to the world of systems integration!

lst file because the list would be included in the list of plugins if it existed An ls command is than executed that builds a new list that is piped into the pluginslst file There is one special install set representing the files that QMake figures that you want to copy: target By specifying a path and adding it to INSTALLS, QMake takes care of the rest: targetpath = /usr/local/myapplication INSTALLS += target Because it is possible to use make as the building system on all platforms, it is recommended to protect the install sets using platform scopes (in particular, the commands listed in extra values need to be adapted to the different platforms)..

If WCF works in your scenario, that s great, but when it is not an option, use .NET s HTTP-based APIs. Unless, of course, the service in question is not HTTP-based, and requires you to work directly with TCP or UDP, in which case you would use sockets. In short, you re at the mercy of the server, and you ll just have to pick whichever option happens to work. Note that because Silverlight s version of WCF is considerably more limited than the full .NET Framework version, a Silverlight client is more likely to have to drop down to the HTTP APIs than a full .NET client.

If you are writing a web service in .NET that you would like to be accessible to client programs written by people other than you, the choice of technology will be determined by two things: the nature of the service and the demands of your clients.* If it s something that fits very naturally with HTTP for example, you are building a service for retrieving bitmaps writing it as an ordinary ASP.NET application may be the best bet (in which case, refer to 21). But for services that feel more like a set of remotely invocable methods, WCF is likely to be the best bet. You can configure WCF to support a wide range of different network protocols even for a single service, thus supporting a wide range of clients. As with the other application types, you would use sockets only if your application has unusual requirements that cannot easily be met using the communication patterns offered by HTTP. So having looked at some common scenarios and seen which communication options are more or less likely to fit, let s look at how to use those options.