To fix this issue data-dojo-attach-point (which you should use for 1.6+ instead of dojoAttachPoint) allows you to have handles for dom nodes in your template.. It is parsed by _TemplatedMixin's buildRendering(), so it will be available in your buildRendering method just after this.inherited line. You can not set data-dojo-attach-point using setAttribute, it can only be defined in templates to be parsed by TemplatedMixin. If you need your child widget to add some markup in addition to what there is in its parent's template, you can define a variable in your parent's markup, and overwrite it in your child widget:
wish of those help You can use a technique similar to what you already have, but access the Canvas property instead of the FCanvas field. The Canvas property is protected, which means it's technically part of the control's interface, so you shouldn't worry about it changing in a future version. (It might still change, but it's not something you should worry about.)
THackGraphicControl = class(TGraphicControl) end;
LCanvas := THackGraphicControl(Self).Canvas;
How to set border to widget, inherited from QFrame?
this one helps. You have to draw on top of the QFrame, the rectangle inside the edge you get through contentsRect(). The setFrameStyle(), setLineWidth(), and setLineWidth() methods do it in the constructor since you will call it only once. ledindicator.h
seems to work fine You should use your BlocProvider() above the MaterialApp widget. Navigator is a widget added by MaterialApp and when you call it to change a route it replaces the widget in home: property and hence replaces your BlocProvider.
wish help you to fix your issue That is not possible using Inheritedwidget. The widget is not made to handle data, but to share it. You have to wrap your Inheritedwidget into a StatefulWidget and use the dispose of the latter