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ShellExecute Function

Performs an operation on a specified file.
Syntax

HINSTANCE ShellExecute(
  __in_opt  HWND hwnd,
  __in_opt  LPCTSTR lpOperation,
  __in      LPCTSTR lpFile,
  __in_opt  LPCTSTR lpParameters,
  __in_opt  LPCTSTR lpDirectory,
  __in      INT nShowCmd
);


Parameters

(...)
lpOperation [in, optional]

    Type: LPCTSTR

    A pointer to a null-terminated string, referred to in this case as a verb, that specifies the action to be performed. The set of available verbs depends on the particular file or folder. Generally, the actions available from an object's shortcut menu are available verbs. The following verbs are commonly used:

    edit

        Launches an editor and opens the document for editing. If lpFile is not a document file, the function will fail.

    explore

        Explores a folder specified by lpFile.

    find

        Initiates a search beginning in the directory specified by lpDirectory.

    open

        Opens the item specified by the lpFile parameter. The item can be a file or folder.

    print

        Prints the file specified by lpFile. If lpFile is not a document file, the function fails.

    NULL

        In systems prior to Windows 2000, the default verb is used if it is valid and available in the registry. If not, the "open" verb is used.

        In Windows 2000 and later, the default verb is used if available. If not, the "open" verb is used. If neither verb is available, the system uses the first verb listed in the registry.
(...)

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