---
title: PD_RS232_PARITY_MARK
framework: serialdriverkit
role: symbol
role_heading: Macro
path: serialdriverkit/pd_rs232_parity_mark
---

# PD_RS232_PARITY_MARK

The mark state.

## Declaration

```occ
#define PD_RS232_PARITY_MARK
```

## Discussion

Discussion This value corresponds to placing a logical 1 on the communication line.

## See Also

### Parity Options

- [PD_RS232_PARITY_DEFAULT](serialdriverkit/pd_rs232_parity_default.md)
- [PD_RS232_PARITY_NONE](serialdriverkit/pd_rs232_parity_none.md)
- [PD_RS232_PARITY_ODD](serialdriverkit/pd_rs232_parity_odd.md)
- [PD_RS232_PARITY_EVEN](serialdriverkit/pd_rs232_parity_even.md)
- [PD_RS232_PARITY_SPACE](serialdriverkit/pd_rs232_parity_space.md)
- [PD_RS232_PARITY_ANY](serialdriverkit/pd_rs232_parity_any.md)