发送命令

以下示例函数使用 mciSendString 函数使用“from”和“to”标志发送 play 命令。

BOOL PlayFromTo(LPTSTR lpstrAlias, DWORD dwFrom, DWORD dwTo) 
{ 
    TCHAR achCommandBuff[128]; 
    int result;
    MCIERROR err;

    // Form the command string.
    result = _stprintf_s(
        achCommandBuff, 
        TEXT("play %s from %u to %u"), 
        lpstrAlias, dwFrom, dwTo); 

    if (result == -1)
    {
        return FALSE;
    }

    // Send the command string.
    err = mciSendString(achCommandBuff, NULL, 0, NULL); 
    if (err != 0)
    {
        return FALSE;
    }

    return TRUE;
}