{"id":5843,"date":"2007-07-03T19:11:00","date_gmt":"2007-07-03T19:11:00","guid":{"rendered":"https:\/\/blogs.msdn.microsoft.com\/vbteam\/2007\/07\/03\/owner-draw-in-vb-matt-gertz\/"},"modified":"2024-07-05T14:44:23","modified_gmt":"2024-07-05T21:44:23","slug":"owner-draw-in-vb-matt-gertz","status":"publish","type":"post","link":"https:\/\/devblogs.microsoft.com\/vbteam\/owner-draw-in-vb-matt-gertz\/","title":{"rendered":"Owner Draw in VB (Matt Gertz)"},"content":{"rendered":"

I hate going so long without blogging, but it’s getting really busy around here as we get closer to the endgame for Visual Studio 2008.  <\/span>That, combined with “review time,” creates a bit of a problem for writing apps for the blog, and I wasn’t able to give it much attention until last night.  <\/span>Realizing I really needed to get an article out, I was wracking my brains for something to write about.  <\/span><\/font><\/font><\/p>\n

I happened to notice that my wife was working on some puzzles in her “Games” magazine – she was on one of her favorites, which is called Paint-by-Numbers.   <\/span>I thought that it might be cool to write her a small app in which I could generate some of those puzzles for her so she wouldn’t have to wait until the next issue arrived.  <\/span>Then I realized, “Ah, what a perfect blog topic!  <\/span>There are so many things I could cover in such an app that I haven’t covered before.”  <\/span>So, here goes – I’ll be writing up this app over the next couple of weeks (posting the final product at the end of the series), and will document the approach for the following topics:<\/font><\/p>\n

·<\/font>         <\/span><\/span><\/span>Owner draw and coordinate mapping on events (shown in this blog post)<\/font><\/p>\n

·<\/font>         <\/span><\/span><\/span>Supporting undo\/redo using a double list of action classes, leveraging generics for this.<\/font><\/p>\n

·<\/font>         <\/span><\/span><\/span>Loading  <\/span>& Saving puzzles<\/font><\/p>\n

·<\/font>         <\/span><\/span><\/span>Printing the puzzle and the solution<\/font><\/p>\n

Paint-by-Numbers background<\/font><\/h2>\n

Paint-by-numbers is a puzzle wherein you’re given a grid, and on the outside of the grid you’re given clues about which parts of the grid should be filled in.  <\/span>For example, here’s a simple 8×8 PBN puzzle which has been solved already:<\/font><\/p>\n

\n\n\n\n\n\n\n\n
\n

\n

 <\/font><\/p>\n<\/p>\n<\/td>\n

\n

5<\/p>\n

<\/font><\/font><\/p>\n<\/td>\n

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1<\/p>\n

<\/font><\/font><\/p>\n<\/td>\n

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1<\/p>\n

<\/font><\/font><\/p>\n<\/td>\n

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1<\/p>\n

<\/font><\/font><\/p>\n<\/td>\n

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5<\/p>\n

<\/font><\/font><\/p>\n<\/td>\n

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 <\/font><\/p>\n<\/p>\n<\/td>\n

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8<\/p>\n

<\/font><\/font><\/p>\n<\/td>\n

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1<\/p>\n

<\/font><\/font><\/p>\n

1<\/p>\n

<\/font><\/font><\/p>\n

1<\/p>\n

<\/font><\/font><\/p>\n<\/td>\n

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2<\/p>\n

<\/font><\/font><\/p>\n

2<\/p>\n

<\/font><\/font><\/p>\n<\/td>\n<\/tr>\n

\n

1 1 2<\/p>\n

<\/font><\/font><\/p>\n<\/td>\n

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 <\/font><\/p>\n<\/p>\n<\/td>\n<\/tr>\n

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1 1 1 1<\/p>\n

<\/font><\/font><\/p>\n<\/td>\n

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 <\/font><\/p>\n<\/p>\n<\/td>\n

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 <\/font><\/p>\n<\/p>\n<\/td>\n

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 <\/font><\/p>\n<\/p>\n<\/td>\n<\/tr>\n

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1 1 1 1<\/p>\n

<\/font><\/font><\/p>\n<\/td>\n

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 <\/font><\/p>\n<\/p>\n<\/td>\n

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 <\/font><\/p>\n<\/p>\n<\/td>\n

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 <\/font><\/p>\n<\/p>\n<\/td>\n<\/tr>\n

\n

\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

I hate going so long without blogging, but it’s getting really busy around here as we get closer to the endgame for Visual Studio 2008.  That, combined with “review time,” creates a bit of a problem for writing apps for the blog, and I wasn’t able to give it much attention until last night.  Realizing […]<\/p>\n","protected":false},"author":258,"featured_media":8818,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[22,195],"tags":[101,165],"class_list":["post-5843","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-matt-gertz","category-visual-basic","tag-matt-gertz","tag-vb2005"],"acf":[],"blog_post_summary":"

I hate going so long without blogging, but it’s getting really busy around here as we get closer to the endgame for Visual Studio 2008.  That, combined with “review time,” creates a bit of a problem for writing apps for the blog, and I wasn’t able to give it much attention until last night.  Realizing […]<\/p>\n","_links":{"self":[{"href":"https:\/\/devblogs.microsoft.com\/vbteam\/wp-json\/wp\/v2\/posts\/5843","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/devblogs.microsoft.com\/vbteam\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/devblogs.microsoft.com\/vbteam\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/vbteam\/wp-json\/wp\/v2\/users\/258"}],"replies":[{"embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/vbteam\/wp-json\/wp\/v2\/comments?post=5843"}],"version-history":[{"count":0,"href":"https:\/\/devblogs.microsoft.com\/vbteam\/wp-json\/wp\/v2\/posts\/5843\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/vbteam\/wp-json\/wp\/v2\/media\/8818"}],"wp:attachment":[{"href":"https:\/\/devblogs.microsoft.com\/vbteam\/wp-json\/wp\/v2\/media?parent=5843"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/vbteam\/wp-json\/wp\/v2\/categories?post=5843"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/devblogs.microsoft.com\/vbteam\/wp-json\/wp\/v2\/tags?post=5843"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}