hi Philippe,
I did find some time the screen could not redraw. It seem some bugs of certain
widget, such as cavans and textbox widget.
Not redaw occurs in the flowing station:
a program (that had a canvas or textbox widget) run first, this program had a
button, that will call a dialog or a menu(it will not full screen), when you exit from
the dialog or menu, the canvas or textbox will not redraw.
it seem in those widget we should call " div_rebuild(self->in->div) "in somewhere,
I tried, but not correct all.
sanit
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