scePlayerInvitationDialogGetResult makes the common dialog checks of
sceWebBrowserDialogGetResult: NOT_INITIALIZED before the dialog is
initialized, ARG_NULL for a null result and NOT_FINISHED until the
dialog finishes. The dialog shows no UI and sends no invitation, so the
finished dialog reports USER_CANCELED with error code 0. The 40-byte
result layout (error code, result, 32 reserved bytes) is taken from
SharpProspero.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Aryan Rawat
Julien Legay