WinSetClassThunkProc - Parameters

pszClassName (PSZ) - input

Window-class name.

pfnThunkProc (PFN) - input

Pointer-conversion procedure identifier.

NULL

Any existing pointer-conversion procedure is dissociated from this class.

By default, a class has no pointer-conversion procedure associated with it.

Other
The pointer-conversion procedure to be associated with this class.

rc (BOOL) - returns

Success indicator.

TRUE

Successful completion
FALSE
An error occurred.

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