---
name: "XmAddProtocols"
section: "3"
platform: "linux"
package: "openmotif"
version: "2.3.8-4"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/XmAddProtocols"
---

# XmAddProtocols(3)

A VendorShell function that adds the protocols to the protocol manager and allocates the internal tables

## NAME

**XmAddProtocols** — A VendorShell function that adds the protocols to the protocol manager and allocates the internal tables

## SYNOPSIS

```
#include <Xm/Protocols.h>
void XmAddProtocols(
Widget shell,
Atom property,
Atom *protocols,
Cardinal num_protocols);
```

## DESCRIPTION

**XmAddProtocols** adds the protocols to the protocol manager and allocates the internal tables.

**XmAddWMProtocols** is a convenience interface. It calls **XmAddProtocols** with the property value set to the atom returned by interning **WM\_PROTOCOLS**.

- *shell*

  Specifies the widget with which the protocol property is associated

- *property*

  Specifies the protocol property

- *protocols*

  Specifies the protocol **Atoms**

- *num\_protocols*

  Specifies the number of elements in *protocols*

For a complete definition of VendorShell and its associated resources, see [**VendorShell**(3)](/VendorShell/3.md).

## RELATED

[**VendorShell**(3)](/VendorShell/3.md), [**XmAddWMProtocols**(3)](/XmAddWMProtocols/3.md), [**XmInternAtom**(3)](/XmInternAtom/3.md), and [**XmRemoveProtocols**(3)](/XmRemoveProtocols/3.md).