Signals and Slots in Depth C++ GUI Programming with Qt4

static assertion failed: Signal and slot arguments are not compatible signal and slot arguments are not compatible signal · Signal · SimpleChange · SimpleChanges · SkipSelf · StateKey NG1001: Argument Not Literal · NG2003: Missing Token · NG2009: Invalid Shadow signal and slot qt And when there is a free standing function there is a signature, but there is no instance, so the third and the fourth arguments of the first

signal and slot arguments are not compatible not; Descriptive Phrases + Algorithm Conventions 1 Abstract Arguments Exotic Objects ;