VB6 calls control events in a very specific way. It’s impressive but the design of event handling results in losing a certain number of guaranteed bytes per control used. By losing bytes, I am referring to the addition of redundant bytes in the executable code.<\/p>\n
I studied the entire structure with Disassemblers and debuggers and found out that the total number of redundant bytes is \u00a0governed by the following formula:<\/p>\n
Total Redundant Bytes = SUMMATION OF (4 x (Number_Of_Events + 6 – Events_Used) ) FROM 1 TO N<\/strong><\/p>\n where: So Imagine a simple form having two text boxes and 1 command button for a simple login box, considering that only the following events are used: That’s 472 unnecessary bytes<\/strong> just for a simple login box using absolutely no user-written code.<\/p>\n Many people refer to VB6 as Visual Bloatware, and you now know why \ud83d\ude09<\/p>\n","protected":false},"excerpt":{"rendered":" VB6 calls control events in a very specific way. It’s impressive but the design of event handling results in losing a certain number of guaranteed bytes per control used. By losing bytes, I am referring to the addition of redundant bytes in the executable code. I studied the entire structure with Disassemblers and debuggers and […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[3],"tags":[58,66,70],"_links":{"self":[{"href":"https:\/\/www.sanchitkarve.com\/blog\/wp-json\/wp\/v2\/posts\/48"}],"collection":[{"href":"https:\/\/www.sanchitkarve.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.sanchitkarve.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.sanchitkarve.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sanchitkarve.com\/blog\/wp-json\/wp\/v2\/comments?post=48"}],"version-history":[{"count":0,"href":"https:\/\/www.sanchitkarve.com\/blog\/wp-json\/wp\/v2\/posts\/48\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.sanchitkarve.com\/blog\/wp-json\/wp\/v2\/media?parent=48"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sanchitkarve.com\/blog\/wp-json\/wp\/v2\/categories?post=48"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sanchitkarve.com\/blog\/wp-json\/wp\/v2\/tags?post=48"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nN<\/strong> = Total Number of Controls Used
\nNumber_Of_Events<\/strong> = Total Number Events Supported by a Control (Different for each control)
\nEvents_Used<\/strong> = Number of Events Used for each control.<\/em><\/p>\n
\nForm_Load()
\nCommand1_Click()<\/em>
\nThe Total number of Redundant Bytes is:
\n(4*(31+6-1)) + 2*(4*(24+6)) + (4*(17+6-1)) = 472
\n1 FORM + 2 TEXT BOXES + 1 CMD BTN<\/p>\n