<div>
Use the Macros with the COLORREF for getting each color value<br />
<br />
the macros are GetRValue(crf);GetGValue(c<wbr />rf);etc.<br />
<br />
PALLETTEENTRY gives the bytes of the RGB,<br />
<br />
So you can either combine these rgb value and compare with COLORREF , or split the COLORREF and compare with the pallette entry.<br />
<br />
<br />
GOOD LUCK<br />

</div>


Use the Macros with the COLORREF for getting each color value

the macros are GetRValue(crf);GetGValue(crf);etc.

PALLETTEENTRY gives the bytes of the RGB,

So you can either combine these rgb value and compare with COLORREF , or split the COLORREF and compare with the pallette entry.


GOOD LUCK


<div>
how to split the COLORREF ? can you give me some sample code
</div>


how to split the COLORREF ? can you give me some sample code

<div>
COLORREF PixelAtPointer = dc.GetPixel( point );<br />
<br />
<br />
BYTE byteRVal = GetRValue(PixelAtPointer);<wbr /><br />
<br />
<br />
GOOD LUCK
</div>


COLORREF PixelAtPointer = dc.GetPixel( point );


BYTE byteRVal = GetRValue(PixelAtPointer);


GOOD LUCK

<div>
I'm struggling to understand this code:<br />
<br />
ShortRed=ColourEntries[i+2<wbr />0].peRed/8<wbr />; &nbsp; &nbsp; ShortGreen=ColourEntries[i<wbr />+20].peGre<wbr />en/4;<br />
ShortBlue=ColourEntries[i+<wbr />20].peBlue<wbr />/8;<br />
<br />
ColourIndex[i]=ShortRed*20<wbr />48+ShortGr<wbr />een*32+Sho<wbr />rtBlue;<br />
<br />
Do you have any idea about those &quot;8&quot;, &quot;4&quot;, &quot;32&quot;, &quot;2048&quot; ?
</div>


I'm struggling to understand this code:

ShortRed=ColourEntries[i+20].peRed/8;     ShortGreen=ColourEntries[i+20].peGreen/4;
ShortBlue=ColourEntries[i+20].peBlue/8;

ColourIndex[i]=ShortRed*2048+ShortGreen*32+ShortBlue;

Do you have any idea about those "8", "4", "32", "2048" ?

<div>
<div class="content wysiwyg-content">
I have an application that has the display come with a custome color pallete:<br />
<br />
PALETTEENTRY ColourEntries[276];<br />
<br />
When I get the color at the cursor by:<br />
<br />
COLORREF PixelAtPointer = dc.GetPixel( point );<br />
<br />
How to reference the COLORREF against the PALETTEENTRY ? I want to find the index of the pixel color in the pallete entry.<br />
<br />
Thanks
</div>
</div>


I have an application that has the display come with a custome color pallete:

PALETTEENTRY ColourEntries[276];

When I get the color at the cursor by:

COLORREF PixelAtPointer = dc.GetPixel( point );

How to reference the COLORREF against the PALETTEENTRY ? I want to find the index of the pixel color in the pallete entry.

Thanks

Color and Pallete entry

Kernel and system programming is the process of creating the software necessary for a computer or device to function and operate other programs. Some operating systems (such as Microsoft Windows) are proprietary, but others, such as the various Linux distributions, are open source.