module dl pub const ( rtld_now = 0 rtld_lazy = 0 ) fn C.LoadLibrary(libfilename &u16) voidptr fn C.GetProcAddress(handle voidptr, procname byteptr) voidptr fn C.FreeLibrary(handle voidptr) bool // open loads a given module into the address space of the calling process. pub fn open(filename string, flags int) voidptr { res := C.LoadLibrary(filename.to_wide()) return res } // close frees the loaded a given module. pub fn close(handle voidptr) bool { return C.FreeLibrary(handle) } // sym returns an address of an exported function or variable from a given module. pub fn sym(handle voidptr, symbol string) voidptr { return C.GetProcAddress(handle, symbol.str) } // dlerror provides a text error diagnostic message for functions in `dl` // it returns a human-readable string, describing the most recent error // that occurred from a call to one of the `dl` functions, since the last // call to dlerror() pub fn dlerror() string { // https://docs.microsoft.com/en-us/windows/win32/api/errhandlingapi/nf-errhandlingapi-getlasterror // Unlike dlerror(), GetLastError returns just an error code, that is function specific. cerr := int(C.GetLastError()) return 'error code $cerr' }