XClearArea can generate BadMatch , BadValue , and BadWindow errors. If the window has background None , the contents of the window are not changed. If you specify a window whose class is InputOnly , a BadMatch error results. XClearWindow can generate BadMatch and BadWindow errors. An InputOnly window is used as a Drawable.
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 gen- erate this error. BadWindow A value for a Window argument does not name a defined Window.