update

kernel32.go

@@ -362,3 +362,40 @@ func GlobalAlloc(uFlags DWORD, dwBytes uintptr) (HGLOBAL, error) {
 	}
 	return HGLOBAL(r), nil
 }
+
+func GlobalFree(hMem HGLOBAL) error {
+	kernel32, err := syscall.LoadLibrary("kernel32.dll")
+	if err != nil {
+		return err
+	}
+	defer syscall.FreeLibrary(kernel32)
+	gf, err := syscall.GetProcAddress(syscall.Handle(kernel32), "GlobalFree")
+	if err != nil {
+		return err
+	}
+	r, _, errno := syscall.Syscall(gf, 1, uintptr(hMem), 0, 0)
+	if r == 0 {
+		if errno != 0 {
+			return error(errno)
+		}
+		return syscall.EINVAL
+	}
+	return nil
+}
+
+func RtlMoveMemory(Destination, Source unsafe.Pointer, Length uintptr) error {
+	kernel32, err := syscall.LoadLibrary("kernel32.dll")
+	if err != nil {
+		return err
+	}
+	defer syscall.FreeLibrary(kernel32)
+	rmv, err := syscall.GetProcAddress(syscall.Handle(kernel32), "RtlMoveMemory")
+	if err != nil {
+		return err
+	}
+	_, _, errno := syscall.Syscall(rmv, 3, uintptr(unsafe.Pointer(Destination)), uintptr(unsafe.Pointer(Source)), Length)
+	if errno != 0 {
+		return error(errno)
+	}
+	return nil
+}