目标C中DWORD的替代方案

我正在尝试打开音频文件(.wav)并检索原始数据。我从 link DWORD 目标c中不支持。

我该如何实现?

FILE *fp;
fp = fopen("sound.wav","rb");
if (fp)
{
    BYTE id[4]; //four bytes to hold 'RIFF'
    DWORD size; //32 bit value to hold file size

    fread(id,sizeof(BYTE),4,fp); //read in first four bytes
    if (!strcmp(id,"RIFF"))
    { //we had 'RIFF' let's continue
        fread(size,sizeof(DWORD),1,fp);
        //read in 32bit size value
    }
}