As of Windows 8, you can provide a pointer to the site chain to ShellExecuteEx to enable these behaviors. Using ShellExecuteEx to Provide Activation Services from a SiteĪ site chain's services can control many behaviors of item activation. For further information, see Extending Shortcut Menus and the ShellExecuteEx reference documentation. This procedure is usually equivalent to setting lpVerb to "open", but some file types may have a different default command. In many cases, you can simply set the lpVerb parameter to NULL, which invokes the default command for the file type. In general, trying to determine the list of available verbs for a particular file is somewhat complicated. For further discussion of shortcut menus and verbs, see Extending Shortcut Menus. Some commands can have additional arguments, such as flags, that can be added as needed to launch the application properly. txt file, Wordpad.exe is launched with the specified file as its argument. When you use ShellExecute or ShellExecuteEx to open a. txt file would thus correspond to something like the following command: "C:\Program Files\Windows NT\Accessories\Wordpad.exe" "%1" txt files can be opened by Microsoft WordPad. However, it is more commonly used to launch an application that operates on a particular file. exe files, open simply launches the application. The open verb is a good example, as it is commonly supported. User Account Control (UAC) will prompt the user for consent to run the application elevated or enter the credentials of an administrator account used to run the application.Įach verb corresponds to the command that would be used to launch the application from a console window. Launches an application as Administrator. If this file is not an executable file, its associated application is launched. Initiates a search starting from the specified directory. Launches an editor and opens the document for editing. Again, the verb\ command subkey contains the data indicating what happens when that verb is invoked. Where object_name is the name of the predefined Shell object. HKEY_CLASSES_ROOT\ object_name\ shell\ verb To find out which verbs are available for predefined Shell objects, look in the registry under The verb\ command subkey contains the data indicating what happens when that verb is invoked. Where object_clsid is the class identifier (CLSID) of the object, and verb is the name of the available verb. To find which verbs are available, look in the registry under The verbs available for an object are essentially the items that you find on an object's shortcut menu. There are also several other members or parameters that can be used to fine-tune the behavior of the two functions.įile and folder objects can be part of the file system or virtual objects, and they can be identified by either paths or pointers to item identifier lists (PIDLs). For ShellExecuteEx, fill in the appropriate members of a SHELLEXECUTEINFO structure. For ShellExecute, assign these values to the appropriate parameters. To use ShellExecute or ShellExecuteEx, your application must specify the file or folder object that is to be acted on, and a verb that specifies the operation. A Simple Example of How to Use ShellExecuteEx.Using ShellExecute to Launch the Search Dialog Box.Using ShellExecuteEx to Provide Activation Services from a Site.This document discusses how to use ShellExecute or ShellExecuteEx to perform these tasks. If the file of interest is an executable, your application might want to simply launch it. For instance, your application might want to launch another application that allows the user to modify a data file. Once your application has located a file object, the next step is often to act on it in some way.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |