如何将窗口句柄转换为字节，并在FASM中使用winmm播放视频？

#include <iostream>
#include <Windows.h>

BYTE* ConvertHandleToBytes(HWND hWnd)
{
    BYTE* bytes = new BYTE[sizeof(HWND)];
    memcpy(bytes, &hWnd, sizeof(HWND));
    return bytes;
}

format PE console
entry start

include 'win32a.inc'

section '.data' data readable writeable
    filename db 'video.avi',0
    command db 'open video.avi type mpegvideo alias video',0
    playcommand db 'play video',0

section '.code' code readable executable
start:
    ; 初始化winmm库
    invoke mciSendString, command, 0, 0, 0

    ; 播放视频
    invoke mciSendString, playcommand, 0, 0, 0

    ; 等待用户按下任意键退出
    invoke MessageBox, 0, 'Press any key to exit', 'Video Player', MB_OK
    invoke ExitProcess, 0

section '.idata' import data readable writeable
    library kernel32, 'kernel32.dll',\
            winmm, 'winmm.dll'

    import kernel32,\
           ExitProcess, 'ExitProcess',\
           MessageBox, 'MessageBoxA'

    import winmm,\
           mciSendString, 'mciSendStringA'