NAME
XQueryPointer - get pointer coordinates SYNTAX Bool XQueryPointer(Display *display, Window w, Window *rootreturn, Window *childreturn, int *rootxreturn, int *rootyreturn, int *winxreturn, int *winyreturn, unsigned int *maskreturn); ARGUMENTS childreturn Returns the child window that the pointer is located in, if any. display Specifies the connection to the X server. maskreturn Returns the current state of the modifier keys and pointer buttons. rootreturn Returns the root window that the pointer is in. rootxreturn rootyreturn Return the pointer coordinates relative to the root window's origin. w Specifies the window. winxreturn winyreturn Return the pointer coordinates relative to the specified win‐ dow. DESCRIPTION The XQueryPointer function returns the root window the pointer is logi‐ cally on and the pointer coordinates relative to the root window's ori‐ gin. If XQueryPointer returns False, the pointer is not on the same screen as the specified window, and XQueryPointer returns None to childreturn and zero to winxreturn and winyreturn. If XQuery‐ Pointer returns True, the pointer coordinates returned to winxreturn and winyreturn are relative to the origin of the specified window. In this case, XQueryPointer returns the child that contains the pointer, if any, or else None to childreturn. XQueryPointer returns the current logical state of the keyboard buttons and the modifier keys in maskreturn. It sets maskreturn to the bit‐ wise inclusive OR of one or more of the button or modifier key bitmasks to match the current state of the mouse buttons and the modifier keys. XQueryPointer can generate a BadWindow error. DIAGNOSTICS BadWindow A value for a Window argument does not name a defined Window. SEE ALSO XGetWindowAttributes(3), XQueryTree(3)
Xlib - C Language X Interface X Version 11 libX11 1.6.5 XQueryPointer(3)