CWinApp::ProcessShellCommand
This member function is called by InitInstance to accept the parameters passed from the CCommandLineInfo object identified by rCmdInfo, and perform the indicated action.
BOOL ProcessShellCommand( CCommandLineInfo& rCmdInfo );
Nonzero if the shell command is processed successfully. If 0, return FALSE from InitInstance.
When you start a new MFC project using the Application Wizard, the Application Wizard will create a local instance of CCommandLineInfo, and then call ProcessShellCommand and ParseCommandLine in the InitInstance member function. A command line follows the route described below:
-
After being created in InitInstance, the CCommandLineInfo object is passed to ParseCommandLine.
-
ParseCommandLine then calls CCommandLineInfo::ParseParam repeatedly, once for each parameter.
-
ParseParam fills the CCommandLineInfo object, which is then passed to ProcessShellCommand.
-
ProcessShellCommand handles the command-line arguments and flags.
The data members of the CCommandLineInfo object, identified by CCommandLineInfo::m_nShellCommand, are of the following enumerated type, which is defined within the CCommandLineInfo class.
enum {
FileNew,
FileOpen,
FilePrint,
FilePrintTo,
FileDDE,
};
For a brief description of each of these values, see CCommandLineInfo::m_nShellCommand.