Hi IOhannes, 

I tried your patch as following : 

% git diff tcl/pdtk_canvas.tcl
diff --git a/tcl/pdtk_canvas.tcl b/tcl/pdtk_canvas.tcl
index b4be07b3..3d1930fa 100644
--- a/tcl/pdtk_canvas.tcl
+++ b/tcl/pdtk_canvas.tcl
@@ -117,7 +117,8 @@ proc pdtk_canvas_new {mytoplevel width height geometry editable} {
     canvas $tkcanvas -width $width -height $height \
         -highlightthickness 0 -scrollregion [list 0 0 $width $height] \
         -xscrollcommand "$mytoplevel.xscroll set" \
-        -yscrollcommand "$mytoplevel.yscroll set"
+        -yscrollcommand "$mytoplevel.yscroll set" \
+        -background white
     scrollbar $mytoplevel.xscroll -orient horizontal -command "$tkcanvas xview"
     scrollbar $mytoplevel.yscroll -orient vertical -command "$tkcanvas yview"
     pack $tkcanvas -side left -expand 1 -fill both

% make clean
% make -j16
% mac/osx-app.sh 0.51-0patched

but got the same result : transparent patcher window (without title bar because I didn't override Wish)

cheers

Le mar. 14 juil. 2020 à 10:07, IOhannes m zmoelnig <zmoelnig@iem.at> a écrit :
On 13.07.20 06:03, Miller Puckette via Pd-list wrote:
> I managed to get remote access to a MACOS 11 machine

depending on your kind of "remote access", this might well take a
completely different rasterizer.
things like transparent windows are usually just some GPU effect (like
rotating cubes for switching desktops, wobbly windows,... thanks
goodness these abominations have retreated), and i doubt whether they
would be included in a remote session.


On 14.07.20 09:35, Antoine Villeret wrote:
> and the patcher windows now have a title bar but they are still transparent.

but this is sooo cool ;-)


anyhow, have you tried to explicitely assign some background colour to
the canvas?
add a "-background white" to the canvas-creation at [1].

just a random, uninformed idea.

fgadrms
IOhannes


[1]
[https://github.com/pure-data/pure-data/blob/0.51-0/tcl/pdtk_canvas.tcl#L117-L120]

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