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

# tickit\_rectset\_subtract(3)

subtract a region from a rectangle set

## NAME

tickit\_rectset\_subtract - subtract a region from a rectangle set

## SYNOPSIS

```
#include <tickit.h>

void tickit_rectset_subtract(TickitRectSet *trs, const TickitRect *rect);
```

Link with *-ltickit*.

## DESCRIPTION

**tickit\_rectset\_subtract**() ensures that the regions stored by the rectangle set do not include the area given by *rect*. To do this, it may have to split one or more of the existing regions into smaller fragments, and so may result in more regions being stored.

## RETURN VALUE

**tickit\_rectset\_subtract**() returns no value.

## SEE ALSO

[**tickit\_rectset\_new**(3)](/tickit_rectset_new/3.md), [**tickit\_rectset**(7)](/tickit_rectset/7.md), [**tickit\_rect**(7)](/tickit_rect/7.md), [**tickit**(7)](/tickit/7.md)