- 1 year ago
How to port 32-bit DLL definitions to 64-bit?
Comment
1 / 1
Porting 32-bit DLL definitions to 64-bit involves updating the data types used in the DLL to their 64-bit equivalents. This is because data types have different sizes in 32-bit and 64-bit architectures.
Here are the common data type changes that you may need to make:
int
becomeslong
(32-bit integer becomes 64-bit integer)short
becomesint16_t
(16-bit integer becomes 16-bit integer)long
becomesint32_t
(32-bit integer becomes 32-bit integer)__int64
becomesint64_t
(64-bit integer becomes 64-bit integer)void*
becomesuintptr_t
(pointer becomes unsigned integer)long long
becomesint64_t
(64-bit integer becomes 64-bit integer)
Additionally, you may also need to update any pointer arithmetic or bit operations that are sensitive to the size of the data type.
It is important to note that the process of porting DLL definitions to 64-bit can be complex and may require significant changes to the code. It is recommended to carefully review the code and test thoroughly to ensure that it functions correctly on a 64-bit architecture.