X Version 11 (Release 6.1)

XtGetDisplays(X3xt)

XtGetDisplays -- retrieve a list of displays associated with an application context

Synopsis

void XtGetDisplays(app_context, dpy_return, num_dpy_return)
    XtAppContext app_context;
    Display*** dpy_return;
    Cardinal* num_dpy_return;

app_context: Specifies the application context.
dpy_return: Returns a list of open X display connections in the specified application context.
num_dpy_return: Returns the count of open X display connections in dpy_return.

To free the list of displays, use XtFree .

X Toolkit Intrinsics - C Language Interface
Xlib - C Language X Interface