---
name: "tickit_pen_set_bool_attr"
section: "3"
platform: "linux"
package: "libtickit-dev"
version: "0.4.3-2"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/tickit_pen_set_bool_attr"
---

# tickit\_pen\_set\_bool\_attr(3)

manipulate a boolean pen attribute

## NAME

tickit\_pen\_get\_bool\_attr, tickit\_pen\_set\_bool\_attr - manipulate a boolean pen attribute

## SYNOPSIS

```
#include <tickit.h>

bool tickit_pen_get_bool_attr(TickitPen *pen, TickitPenAttr attr);
void tickit_pen_set_bool_attr(TickitPen *pen, TickitPenAttr attr, bool val);
```

Link with *-ltickit*.

## DESCRIPTION

**tickit\_pen\_get\_bool\_attr**() returns the current value of the given boolean attribute on the pen, or false if that attribute is not defined.

**tickit\_pen\_set\_bool\_attr**() provides a new value for the given boolean attribute on the pen. It will invoke the **TICKIT\_EV\_CHANGE** event on the pen instance.

## RETURN VALUE

**tickit\_pen\_get\_bool\_attr**() returns a boolean. **tickit\_pen\_set\_bool\_attr**() returns no value.

## SEE ALSO

[**tickit\_pen\_new**(3)](/tickit_pen_new/3.md), [**tickit\_pen\_has\_attr**(3)](/tickit_pen_has_attr/3.md), [**tickit\_pen\_set\_int\_attr**(3)](/tickit_pen_set_int_attr/3.md), [**tickit\_pen\_set\_colour\_attr**(3)](/tickit_pen_set_colour_attr/3.md), [**tickit\_pen\_clear\_attr**(3)](/tickit_pen_clear_attr/3.md), [**tickit\_pen**(7)](/tickit_pen/7.md), [**tickit**(7)](/tickit/7.md)