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Re^2: How to set background Color on bitmap when creating with DefineBitmap?

by cmv (Chaplain)
on Jul 14, 2010 at 21:40 UTC ( #849641=note: print w/replies, xml ) Need Help??


in reply to Re: How to set background Color on bitmap when creating with DefineBitmap?
in thread How to set background Color on bitmap when creating with DefineBitmap?

Here's a quick example:
use strict; use warnings; use Tk; my $top = MainWindow->new(); my $arrowDnBits = pack("b8" x 5, "........", ".111111.", "..1111..", "...11...", "........" ); $top->DefineBitmap('arrowDn' => 8, 5, $arrowDnBits); $top->Button(-bitmap=>'arrowDn')->pack(-side=>'left'); MainLoop();
Note: It is possible to set -background=>'red' when you create the button (which will get the button code to go and set the bitmap background for you), but that is not what I want. I'm trying to figure out how to set the bitmap -background directly, or possibly another bitmap option like -data.

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[Cosmic37]: now I have tried another blunder - can anyone explain why I am such a dunderhead?
[Cosmic37]: if ( $line =~ /$mydt/ ) { print $line; }
[Cosmic37]: I try to match successive date times stored in variable $mydt
[Cosmic37]: I guess it is searching for the string "$mydt"
[Corion]: Indeed cool, erix ;)
[Cosmic37]: rather than the value of $mydt which is a date time strong such as 2016-01-01 12:30:56
[Corion]: Cosmic37: No, but maybe $mydt doesn't contain what you think it does, or it contains characters that are special in a regular expression? Try if( $line =~ /\Q$mydt\E/) { ... for a literal match
[Cosmic37]: I mean string grrr
[Corion]: Maybe add an else branch in which you print what the values of $line and $mydt are?
[Cosmic37]: ah thank you I will try

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