JCL Help:SetVirtualMethod
JCL Help: SetVirtualMethod Function
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Summary
Changes a virtual method to the given method.
Pascal
procedure SetVirtualMethod(AClass: TClass; const Index: Integer; const Method: Pointer);
Parameters
| Parameters | Description |
| AClass: TClass | The class for which to set a virtual method. |
| const Index: Integer | The index of the virtual method to be set. |
| const Method: Pointer | The new address of the virtual method. |
Description
Changes a virtual method to the given method. Do NOT use this function. There should be no need to use this function unless your implementing a very dirty hack. There is no checking performed that the Index is a valid virtual method index. The function only changes the pointer in the VMT of the specified class, not the static references to this method, which are made when an anchestor uses inherited to call the virtual method. This procedure changes the executable code (with the risk of completly destroying your application) and uses WriteProcessMemory to accomplish that. The function is multiprocessor safe.
See Also
GetVirtualMethodCount GetVirtualMethod
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