'[cairo] erasing overlay on GTK drawing area widget.'

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List:       cairo
Subject:    [cairo] erasing overlay on GTK drawing area widget.
From:       Michael K <vk2bea () yahoo ! com>
Date:       2022-03-29 15:45:46
Message-ID: 48263842.1493671.1648568746611 () mail ! yahoo ! com
[Download RAW message or body]

I'm attempting to have two GtkDrawingArea widgets in a GtkOverlay container.
The lower widget is a graph and the top widget shows dynamically changing information \
related to the graph based on the mouse position. I cannot seem to erase the top \
drawing area without wiping out the graph on the bottom drawing area. Is this at all \
possible or am I just doing something wrong ?


[Attachment #3 (text/html)]

<html><head></head><body><div class="yahoo-style-wrap" style="font-family:Helvetica \
Neue, Helvetica, Arial, sans-serif;font-size:10px;"><div dir="ltr" \
data-setdir="false">I'm attempting to have two GtkDrawingArea widgets in a GtkOverlay \
container.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" \
data-setdir="false">The lower widget is a graph and the top widget shows dynamically \
changing information related to the graph based on the mouse position.</div><div \
dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">I cannot \
seem to erase the top drawing area without wiping out the graph on the bottom drawing \
area.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" \
data-setdir="false">Is this at all possible or am I just doing something wrong \
?</div></div></body></html>



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