How do I remove the bad cast HINSTANCE to int?

I'm compiling a program on gcc by using -Wbad-function-cast flag. The gcc show the following warning:

cast does not match function type

this is line of warning: int ret = (int)FindExecutable(file, NULL, result)

The question is: it's possible remove it? maybe casting to another windows data type, but that I handling it as an integer.