Intermec CN2B Manual de usuario descargar pdf (Pagina 154)

Chapter 7 — Programming

136 CN2B Mobile Computer User’s Manual

Using Installation Functions in SETUP.DLL

SETUP.DLL is an optional file that enables you to perform custom opera-

tions during installation and removal of your application. The following list

shows the functions that are exported by SETUP.DLL.

Install_Init Called before installation begins. Use this function to check the application version when reinstall-

ing an application and to determine if a dependent application is present.

Install_Exit Called after installation is complete. Use this function to handle errors that occur during applica-

tion installation.

Uninstall_Init Called before the removal process begins. Use this function to close the application, if the applica-

tion is running.

Uninstall_Exit Called after the removal process is complete. Use this function to save database information to a file

and delete the database and to tell the user where the user data files are stored and how to reinstall

the application.

Note: Use [DefaultInstall] > CESelfRegister (page 129) in the .INF file

to point to SETUP.DLL.

After the CAB File Extraction

Cab files that need to cause a warm reset after cab extraction need to create

the __RESETMEPLEASE__.TXT file in the “\Windows” directory. The

preferred method to create this file is within the DllMain portion of the

SETUP.DLL file. It looks like this:

#include <windows.h>

#include <Tlhelp32.h>

#include <winioctl.h>

#include <ce_setup.h> // in the public SDK dir

#define IOCTL_TERMINAL_RESET CTL_CODE (FILE_DEVICE_UNKNOWN,FILE_ANY_ACCESS,

2050, METHOD_NEITHER)

BOOL APIENTRY DllMain( HANDLE h, DWORD reason, LPVOID lpReserved )

{

return TRUE;

} // DllMain

//************************************************************************

// $DOCBEGIN$

// BOOL IsProcessRunning( TCHAR * pname );

// Description: Get process table snapshot, look for pname running.

// Arguments: pname - pointer to name of program to look for.

// for example, app.exe.

// Returns: TRUE - process is running.

// FALSE - process is not running.

// $DOCEND$

//************************************************************************

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Intermec CN2B Manual de usuario Pagina 154