windows->event_loop->subclass_event_target_window throws exception on Windows 7 x86

[kingyang]

Describe the bug
windows->event_loop->subclass_event_target_window throws exception on Windows 7 x86

Steps To Reproduce
cargo build --release --example window
run window.exe on Windows 7 x86
Expected behavior
A clear and concise description of what you expected to happen.

Platform and Versions (please complete the following information):
OS: Windows 7 sp1 x86
Rustc: 1.77.2-i686-pc-windows-msvc

RUST_BACKTRACE=1 ./window.exe
thread 'main' panicked at ...\tao-dev\src\platform_impl\windows\event_loop.rs:721:5:
assertion failed: subclass_result.as_bool()
stack backtrace:
note: Some details are omitted, run with RUST_BACKTRACE=full for a verbose backtrace.