DetourCodeFromPointer

DetourCodeFromPointer

Return a pointer to the code that implements a function pointer.

Definition

PVOID DetourCodeFromPointer(
    _In_      PVOID pPointer,
    _Out_opt_ PVOID *ppGlobals
);

Parameters

pPointer : Pointer to the function.

ppGlobals : Variable to optionally receive the address of the function's globals data.

Return value

Returns a pointer to the code implementing the function.

Remarks

DetourCodeFromPointer returns a pointer to the code that implements a function pointed to by a function pointer. When a binary is statically linked against a DLL, pointers to functions from the DLL often point not to the code from the DLL, but to a jump statement in the binary's import table. DetourCodeFromPointer returns the address of the actual target function, not the jump statement.

On some platforms, function pointer point to indirection labels, not code. On these platforms, the indirection labels also contains a pointer to the global (or static) data associated with the function.

For more information on using Detours to intercept function calls, see Interception of Binary Functions or Using Detours in the Detours Overview.

Related Samples

Disas, Dtest, Slept, Tracebld, Tryman.