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Re^5: How to get foreground color from a TK::Listbox

by zentara (Archbishop)
on Apr 17, 2018 at 11:57 UTC ( #1213057=note: print w/replies, xml ) Need Help??

in reply to Re^4: How to get foreground color from a TK::Listbox
in thread How to get foreground color from a TK::Listbox

Hi, one point I forgot to mention. It may or may not help. In Tk, is is sometimes useful to pre-define all the special fonts before you use them in widgets. Create the fonts first, then refer to them by a name, like 'big', or 'bold'.
#!/usr/bin/perl use warnings; use strict; use Tk; my $mw = new MainWindow; $mw->fontCreate('big', -family=>'arial', -weight=>'bold', -size=> 28 ); my $c = $mw->Canvas(-bg=>'white')->pack; #---determine font spacing by making a capital W--- my $fonttest = $c->createText(100,100, -fill => 'black', -text => 'W', -font => 'big' ); my ($bx,$by,$bx1,$by1) = $c->bbox($fonttest); $c->{'f_width'} = $bx1 - $bx; $c->{'f_height'} = $by1 - $by; print 'width ',$c->{'f_width'},' ',$c->{'f_height'},"\n"; MainLoop;

I'm not really a human, but I play one on earth. ..... an animated JAPH

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