ScrnSave: Example of Migrating to Windows NT

Click to open or copy the files for the ScrnSave sample.

This sample demonstrates implementing the seven required functions for a Windows NT 5.0 migration DLL. The DLL demonstrates how the interface works by performing the Windows 9x screen saver upgrade.

This sample demonstrates the following.

• How to detect installation of your application.
  
  
• A typical implementation of QueryVersion, Initialize9x, MigrateUser9x, MigrateSystem9x, InitializeNT, MigrateUserNT and MigrateSystemNT.
  
  
• How to provide language-dependent incompatibility messages to the user.
  
  
• How to remove Setup's incompatibility messages via [Handled] section.
  
  
• Saving settings to a temporary file in the working directory.
  
  
• Mixed use of ANSI and UNICODE.
  
  
• Use of the SetupLogError API.
  
  
• Deleting files.
  
  
• Handling the move from system to system32.

Building SDK Samples

This sample uses the following keywords:

_mbsbytes; _mbschr; _mbscpy; _mbsicmp; _mbsinc; _mbslen; _mbsnicmp; assert; countstringbytes; defmac; generatefilepaths; getlasterror; getprocessheap; getscrnsaveexe; heapalloc; heapfree; miginf_addhandleddirectory; miginf_addhandledfile; miginf_addhandledregistry; miginf_addmessage; miginf_addmessagedirectory; miginf_addmessagefile; miginf_addmessageregistry; miginf_addmoveddirectory; miginf_addmovedfile; miginf_addobject; miginf_cleanup; miginf_firstinsection; miginf_getfirstexcludedpath; miginf_getfirstmigrationpath; miginf_initialize; miginf_nextinsection; miginf_writeinftodisk; pbuildlistfromsection; pcreatemigobject; pescapestring; pfindsection; pgetmbssize; pgettypeasstring; pgetvaluestring; poolmemaddmemory; poolmemcreatedword; poolmemcreatestring; poolmemcreatestringa; poolmemdestroypool; poolmemduplicatestringa; poolmemgetalignedmemory; poolmemgetmemory; poolmeminitpool; ppathisinpath; pwriteinfsectiontodisk; setupcloseinffile; setupcloselog; setupfindfirstline; setupfindnextline; setupgetlinetexta; setupopeninffilea; sprintf; text; warning; wcscpy; wcslen; writeprivateprofilestring; zeromemory