XMACTIVATEPROTOCOL(3)

πŸ“¦
version 2.5.2 Β· 2 versions
, in alpine 3.24, arch rolling, centos-stream 9, epel 10, fedora 43, fedora 44, nixos 26.05, nixpkgs unstable, opensuse-leap 16.0

✨ NAME ✨

XmActivateProtocol β€” a VendorShell function that activates a protocol, bestie πŸ’–


🌸 SYNOPSIS 🌸

#include <Xm/Protocols.h>
void XmActivateProtocol(
Widget shell,
Atom property,
Atom protocol);

πŸŽ€ DESCRIPTION πŸŽ€

Okay so XmActivateProtocol does exactly what it says on the tin: it activates a protocol. If the shell is realized, it goes ahead and updates the handlers and the property. Slay πŸ’…

Now here's the tea, because this part is lowkey iconic: sometimes it's genuinely useful to let a protocol's state info β€” like callback lists, and so on β€” just persist, even though the client might decide to temporarily resign from the interaction. Main character energy, honestly. And how is that supported? By letting a protocol live in one of two states: active or inactive πŸ¦‹

  • If the protocol is active and the shell is realized, the property contains the protocol Atom. ✨
  • If the protocol is inactive, the Atom is not present in the property. πŸ’€

Also, not me needing to tell you that XmActivateWMProtocol is a convenience interface 🫢 It calls XmActivateProtocol with the property value set to the atom returned by interning WM_PROTOCOLS. Periodt.

πŸ“ Arguments, babes

  • shell β€” Specifies the widget with which the protocol property is associated.
  • property β€” Specifies the protocol property.
  • protocol β€” Specifies the protocol Atom.

And for a complete definition of VendorShell and its associated resources, see VendorShell(3). Iykyk 🌈


VendorShell(3), XmActivateWMProtocol(3), XmRemoveProtocols(3) and XmInternAtom(3) β€” go read them too, they're all part of the same little family πŸ’œ


and that's the whole page, bestie! this was XmActivateProtocol, a library call from section 3 of the manual β€” mwah, go activate something, you're gonna ate πŸ‘‘πŸŽ€πŸ’–