<div>
Do I must compare each bit in the two bitmaps? There is not an &quot;AND&quot; or &quot;OR&quot; between two bitmaps? &nbsp; 
</div>


Do I must compare each bit in the two bitmaps? There is not an "AND" or "OR" between two bitmaps?  

<div>
You can use BitBlt() to do that sort of thing, but it probably is not what you want. &nbsp;First of all it will be useful only if you want to find exact matches, and after it is done you will need to scan the results to find out which pixels have changed.
</div>


You can use BitBlt() to do that sort of thing, but it probably is not what you want.  First of all it will be useful only if you want to find exact matches, and after it is done you will need to scan the results to find out which pixels have changed.

<div>
<div class="content wysiwyg-content">
I have 2 bitmaps. They are almost equals. I need get &nbsp;the differences between them in a new bitmap, but just the differences. How can I do this?<br />
<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Thanks.
</div>
</div>


I have 2 bitmaps. They are almost equals. I need get  the differences between them in a new bitmap, but just the differences. How can I do this?

               Thanks.

Bitmaps....

Most development for the Microsoft platform is done utilizing the technologies supported by the.NET framework. Other development is done using Visual Basic for Applications (VBA) for programs like Access, Excel, Word and Outlook, with PowerShell for scripting, or with SQL for large databases.

Microsoft Development

A font is a particular size, weight and style of a typeface. Each font is a matched set of type, one piece (called a "sort") for each glyph, and a typeface consists of a range of fonts that share an overall design. With the advent of digital typography, font is frequently synonymous with typeface, although the two terms do not necessarily mean the same thing. In particular, the use of "vector" or "outline" fonts means that different sizes of a typeface can be dynamically generated from one design. Each style may still be in a separate "font file" -- for instance, the typeface "Futura" may include the fonts "Futura roman", "Futura italic", "Futura bold" and "Futura extended" —- but the term "font" might be applied either to one of these alone or to the whole typeface.