int[] mask2= new int[] {
mask= new int[] {
void hookEvents () {	super.hookEvents ();	if ((state & CANVAS) != 0) {		Display display= getDisplay();		OS.SetControlData(handle, OS.kControlEntireControl, OS.kControlUserPaneHitTestProcTag, 4, new int[]{display.fUserPaneHitTestProc});		int[] mask= new int[] {			OS.kEventClassMouse, OS.kEventMouseDown,			OS.kEventClassMouse, OS.kEventMouseWheelMoved,		};		OS.InstallEventHandler(OS.GetControlEventTarget(handle), display.fMouseProc, mask.length, mask, handle, null);				int[] mask2= new int[] {			OS.kEventClassControl, OS.kEventControlDraw,		};		OS.InstallEventHandler(OS.GetControlEventTarget(handle), display.fControlProc, mask2.length, mask2, handle, null);	}}