Aldo Buratti

image delete

I think version 1.8 fixes this bug. See announce and download link at https://wiki.tcl-lang.org/page/Blend2d Please, run a test on Mac-Silicon.

Now I understand. The problem is only when you destroy the root window "." !!! Correct ? This imply that the whole application is terminated ... The strange thing is that on my PC there's no crash, but the application takes 3..6 seconds to close. Without the "bind .l <destroy> {onWidgetDestroy $img}", the application quits immediatly.</destroy> This is a (weird) case that I should examine, and maybe fix! In the meantime, I have this simple/silly workaround at Tcl level: package require Tk set ::TK...

Sorry, but I cannot reproduce your bug. I'm on Windows , with TclTk 9.0.3 , using Blend2d 1.7 I also added this line to your script after 2000 { puts "deleting label" ; destroy .l ; puts "done" } and everything works as expected (no crash). I suspect our TclTk 9.0.3 are not the same; mine is dated at the end of 2025, and I noticed that some parts of the Tk-core library have been updated recently. More specifically tkImage.c was updated on February 2026, and this could be the reason of the your (new?)...

Downlod the tclBlend2d-devkit https://sourceforge.net/p/irrational-numbers/code/HEAD/tree/pkgs/tclBlend2D-devkit/tags/1.7/ or https://sourceforge.net/p/irrational-numbers/code/HEAD/tree/pkgs/tclBlend2D-devkit/tags/1.8/ The devkit also contains a prebuilt dll/dylib of the 'core' blend2d and also the include/stubs for TclTk (8.x and 9.x) Note: release 1.8 introduces significant changes specifically in tkImgBlend2d.c, which should be the critical point where images are created and destroyed. I suggest...

The way I implemented the "blend2d" image type was probably the best gem of the tclBlend2d package. It was not easy to develop it in a pre-AI era, but, just using the Xlib calls (whether native or emulated), it has been possible to provide C code that is virtually platform-independent, running successfully for years on Windows, Linux, and Mac alike. I have read the thread regarding the XcopyArea bug, but I will have to wait another month to get a new Mac Mini (I am currently still using an older...

I can't reproduce the crash on Windows. Everyting works as expected. (Blend2d 1.7) Same on Mac (Intel) and Ubuntu. The differencies between Mac/Windows/Linux are really minimals, just few lines in tkImgBlend2d.c., and up to now the only difference (solved few years ago) was that on Mac we had blue and red swapped ... Fixed with a bug-fix on the tcltk core. Are you running on Mac ? Silicon Mac ? Which TclTk version are you using ? I ask you because Blend2d it's not tested on the latest versions of...

Added sample210-gig