Latest available version: IDA and decompilers v8.4.240527sp2 see all releases
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 Action    name: SetOpType
This command allows you to specify the type of the operand under the cursor.

The operand type must be entered as a C declaration. Currently IDA itself does not use the operand type information. However, it can be used by the Hex-Rays decompiler plugin. Setting operand type is most useful in case of indirect calls: the decompiler will use the type information to determine the input parameters to the call instead of guessing, which can make the decompiled code better.

An example of a type declaration:

        int (*func)(int param1, char param2);
To delete a type declaration, enter an empty string.

For details on possible calling conventions, see Set function/item type... menu item description.

See also

         Set function/item type...
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