SDL_WM_GrabInput (3) - Grabs mouse and keyboard input.
Tk_Grab, Tk_Ungrab (3) - manipulate grab state in an application
grab (3p) - Confine pointer and keyboard events to a window sub-tree
grab (n) - Confine pointer and keyboard events to a window sub-tree
XGrabButton, XUngrabButton (3) - grab pointer buttons
XGrabDevice, XUngrabDevice (3) - grab/release the specified extension device
XGrabDeviceButton, XUngrabDeviceButton (3) - grab/ungrab extension input device buttons
XGrabDeviceKey, XUngrabDeviceKey (3) - grab/ungrab extension input device Keys
XGrabKey, XUngrabKey (3) - grab keyboard keys
XGrabKeyboard, XUngrabKeyboard (3) - grab the keyboard
XGrabPointer, XUngrabPointer, XChangeActivePointerGrab (3) - grab the pointer
XGrabServer, XUngrabServer (3) - grab the server
XIGrabButton, XIUngrabButton, XIGrabKeycode, XIUngrabKeycode (3) - grab/ungrab buttons or keys
XIGrabDevice, XIUngrabDevice (3) - grab or ungrab the device.
XIGrabEnter, XIUngrabEnter, XIGrabFocusIn, XIUngrabFocusIn (3) - grab/ungrab enter or focus in events.
XTestQueryExtension, XTestCompareCursorWithWindow, XTestCompareCurrentCursorWithWindow, XTestFakeKeyEvent, XTestFakeButtonEvent, XTestFakeMotionEvent, XTestFakeRelativeMotionEvent, XTestGrabControl, XTestSetGContextOfGC, XTestSetVisualIDOfVisual, XTestDiscard (3) - XTest extension functions
XkbSetIgnoreLockMods (3) - Sets the modifiers that, if locked, are not to be reported in matching events to passive grabs
XtAddGrab, XtRemoveGrab (3) - redirect user input to a modal widget
XtGrabKey, XtUngrabKey, XtGrabKeyboard, XtUngrabKeyboard, XtGrabButton, XtUngrabButton, XtGrabPointer, XtUngrabPointer (3) - manage grabs
XtRegisterGrabAction (3) - register button and key grabs
XvGrabPort (3) - lock port for exclusive use by client
XvUngrabPort (3) - release port grabbed for video operation