how splwow64 works

Posted: 01-16-2007, 06:48 PM

Michael Harvey

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Posts: n/a

Hi, in the WDK documentation, it says that,

"Limitations on Device Context Handles
If a 32-bit application is running on a 64-bit version of the Microsoft
Windows operating system, a printer driver plug-in that is running in the
context of the Splwow64.exe thunking process should not call the GDI
CreateDC function; this call will fail."

Does this mean that the 32-bit calls to GDI are not thunked up to 64-bit and
what the 64-bit programs eventually get is just a spool file of what
happened in 32-bit world?

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