Updated Platform Support

Where necessary, the DbgHelp library has been widened to support both 32- and 64-bit Windows. The original function and structure definitions are still in DbgHelp.h, but there are also updated versions of these definitions that are compatible with 64-bit Windows. If you use the updated functions in your code, it can be compiled for both 32- and 64-bit Windows. Your code will also be more efficient, since the original functions simply call the updated functions to perform the work.

For example, DbgHelp.h contains definitions for SymUnloadModule (original function) and SymUnloadModule64 (updated function). These definitions are nearly identical, but use different types for the BaseOfDll parameter. (SymUnloadModule uses the DWORD type, while SymUnloadModule64 uses the DWORD64 type.) If you write your code to use SymUnloadModule64, it can be compiled for both 32- and 64-bit Windows. The code is also more efficient than if it were to call SymUnloadModule.

The following is a list of the updated functions:

EnumerateLoadedModules64

StackWalk64

SymEnumerateModules64

SymEnumerateSymbols64

SymFunctionTableAccess64

SymGetLineFromAddr64

SymGetLineFromName64

SymGetLineNext64

SymGetLinePrev64

SymGetModuleBase64

SymGetModuleInfo64

SymGetSymFromAddr64

SymGetSymFromName64

SymGetSymNext64

SymGetSymPrev64

SymLoadModule64

SymRegisterCallback64

SymRegisterFunctionEntryCallback64

SymUnloadModule64

The following is a list of the updated structures:

ADDRESS64

IMAGEHLP_DEFERRED_SYMBOL_LOAD64

IMAGEHLP_DUPLICATE_SYMBOL64

IMAGEHLP_LINE64

IMAGEHLP_MODULE64

IMAGEHLP_SYMBOL64

KDHELP64

STACKFRAME64

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Build date: 9/25/2007