If the window has background None , the contents of the window are not changed. In either case, if exposures is True , one or more Expose events are generated for regions of the rectangle that are either visible or are being retained in a backing store. If you specify a window whose class is InputOnly , a BadMatch error results. An InputOnly window is used as a Drawable. Some argument or pair of arguments has the correct type and range but fails to match in some other way required by the request.
Some numeric value falls outside the range of values accepted by the request.
Unless a specific range is specified for an argument, the full range defined by the argument's type is accepted. Any argument defined as a set of alternatives can generate this error. BadWindow A value for a Window argument does not name a defined Window.