Thonord
Member
- Joined
- Oct 25, 2012
- Messages
- 23
- Programming Experience
- 10+
Hi, I'm an old retired Clipperhead, now a hobby VB programmer (starting from VB3).
I am managing til conversion to .NET pretty well on my own, but I find myself often doing things "the old way" instead of using the vast resources in .NET.
As an example, I would scan an area of a bitmap pixel by pixel to create a create a MemoryBitmap (using Get and SetPixel) - but no longer
I now copy a rectangle and presto - less code and greater speed.
This leads to my questions:
1. Can I locate an unique color within a rectangle? Sort of like a function: "IsColor.BlackFound" and where?
2. Doing it the hard way, I came across something surprising.
I would get a pixel "FoundPixel as color" and compare it with color.Black
The strange thing is that even if FoundPixel contains a Black pixel, If FoundPixel = Color.Black Then - is not True (and thus No Then, the way I want Then to be).
I have found that the gotten pixel, with GetPixel, looks like this: FoundPixel.color{name=ff000, ARGB=(255,0,0,0)}
whilst the "OutOfTheBox" color .Black, kindly provided, looks like this: Color.Black{name=Black, ARGB=(255,0,0,0)}. No big deal, one might say, but a Boolean comparison begs to differ.
The solution is simple, I just declare myColor.Black and all is well. But:
Is this a "Bug"? Have I really found a bug in a MS product all by my self?
Anyhoo, Should one choose to answer only one of my questions - please make it number 1.
Number 2 is more of way to allow me a self appreciating "Bazzingaaaa!"
I am managing til conversion to .NET pretty well on my own, but I find myself often doing things "the old way" instead of using the vast resources in .NET.
As an example, I would scan an area of a bitmap pixel by pixel to create a create a MemoryBitmap (using Get and SetPixel) - but no longer
I now copy a rectangle and presto - less code and greater speed.This leads to my questions:
1. Can I locate an unique color within a rectangle? Sort of like a function: "IsColor.BlackFound" and where?
2. Doing it the hard way, I came across something surprising.
I would get a pixel "FoundPixel as color" and compare it with color.Black
The strange thing is that even if FoundPixel contains a Black pixel, If FoundPixel = Color.Black Then - is not True (and thus No Then, the way I want Then to be).
I have found that the gotten pixel, with GetPixel, looks like this: FoundPixel.color{name=ff000, ARGB=(255,0,0,0)}
whilst the "OutOfTheBox" color .Black, kindly provided, looks like this: Color.Black{name=Black, ARGB=(255,0,0,0)}. No big deal, one might say, but a Boolean comparison begs to differ.
The solution is simple, I just declare myColor.Black and all is well. But:
Is this a "Bug"? Have I really found a bug in a MS product all by my self?
Anyhoo, Should one choose to answer only one of my questions - please make it number 1.
Number 2 is more of way to allow me a self appreciating "Bazzingaaaa!"
