Write HDC to FILE and not bitmap.

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Hello,

I have an object in HDC.
I have been able to loop through and get the COLORREF.
Instead of saving it as a bitmap or plain text, what other options do I have?
The size is about 25 x 25.

Can anyone please suggest something, would prefer to write to the registry if possible.

Thank you in advance for any help.

What I have tried:

I have been able to save it as a bitmap and plain text.
Plain text file is too large.

Posted 31-Aug-16 8:35am

FISH786

Updated 31-Aug-16 20:14pm

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Comments

enhzflep 31-Aug-16 16:59pm

What are you actually trying to achieve? What advantage do you hope to gain by performing a standard action in an entirely unconventional manner?

FISH786 31-Aug-16 21:26pm

Instead of saving it as a bitmap, I was hoping to save it in the registry.
This way, I don't have to worry about the bitmaps.

Philippe Mori 31-Aug-16 20:30pm

How can you save an image as text?
25x25 is very small so a bitmap should not be a problem.

FISH786 31-Aug-16 21:29pm

I am sorry, when I said plain text should have said as colorref from the pixels.

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KarstenK · Accepted Answer · 2016-08-31T20:14:00

Normally is writing as a bitmap the best solution, because other programs can easily work with that data.

You can also write every COLORREF in a file. A COLORREF is a DWORD with 4 byte size.

C++

CFile cfile;
cfile.Open(_T("picture.dat"), CFile::modeCreate |  CFile::modeReadWrite);
//do you loop through all data
  //write every value as binary
  cfile.Write(&colorref, sizeof(COLORREF));
//end loop 
cfile.Flush();