That's a tricky one. I think that <<Loaded>> should be sent when the patch is all done, so the current situation is a bug. Since the drawing commands come from 'pd', 'pd' would have to trigger the <<Loaded>> event. I forget how its triggered now.
Definitely avoid 'update', I recently refactored my pdwindow.tcl code to switch from 'update' to 'after idle'.
.hc
On Nov 17, 2011, at 4:01 PM, Jonathan Wilkes wrote:
Hi Hans, I'm close to finishing a revision of my tooltips patch. To properly loadbang a canvas tip
I need something like a <<Loaded>> event, but one that tells me when the a pd patch window has
finally finished being drawn by Tk. <<Loaded>> seems to trigger once the procedure for creating
a new canvas has finished (technically right before, I guess), but it doesn't tell me when Tk has
actually finished drawing the window and setting all the window dimensions that are query-able
through winfo.
I think I could use <Configure>, but it will trigger multiple times-- I just want one event that tells me
"Ok, everything that needed to get drawn as a result of creating this patch window is done drawing."
(tcl/tk wiki warns against "update idletasks" which can cause subtle bugs.)
-Jonathan
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