please dont rip this site Prev Next

GetDIBColorTable info  Overview  Group

The GetDIBColorTable function retrieves RGB (red, green, blue) color values from a range of entries in the color table of the DIB section bitmap that is currently selected into a specified device context.

UINT GetDIBColorTable(

    HDC hdc,

// handle of device context whose DIB is of interest

    UINT uStartIndex,

// color table index of first entry to retrieve

    UINT cEntries,

// number of color table entries to retrieve

    RGBQUAD *pColors

// pointer to buffer that receives color table entries

   );

Parameters

hdc
Specifies a device context. A DIB section bitmap must be selected into this device context.
uStartIndex
A zero-based color table index that specifies the first color table entry to retrieve.
cEntries
Specifies the number of color table entries to retrieve.
pColors
Points to a buffer that receives an array of RGBQUAD data structures containing color information from the DIB’s color table. The buffer must be large enough to contain as many RGBQUAD data structures as the value of cEntries.

Return Values

If the function succeeds, the return value is the number of color table entries that the function retrieves.

If the function fails, the return value is zero. To get extended error information, call GetLastError.

Remarks

The GetDIBColorTable function should be called to retrieve the color table for DIB section bitmaps that use 1, 4, or 8 bits per pixel. The biBitCount member of a bitmap’s associated BITMAPINFOHEADER structure specifies the number of bits per pixel. DIB section bitmaps with a biBitCount value greater than 8 do not have a color table, but they do have associated color masks. Call the GetObject function to retrieve those color masks.

See Also

BITMAPINFOHEADER, CreateDIBSection, DIBSECTION, GetObject, RGBQUAD, SetDIBColorTable

See:


file: /Techref/os/win/api/win32/func/src/f30_13.htm, 3KB, , updated: 2001/6/26 11:22, local time: 2024/10/4 01:11,
TOP NEW HELP FIND: 
3.238.82.77:LOG IN
©2024 PLEASE DON'T RIP! THIS SITE CLOSES OCT 28, 2024 SO LONG AND THANKS FOR ALL THE FISH!

 ©2024 These pages are served without commercial sponsorship. (No popup ads, etc...).Bandwidth abuse increases hosting cost forcing sponsorship or shutdown. This server aggressively defends against automated copying for any reason including offline viewing, duplication, etc... Please respect this requirement and DO NOT RIP THIS SITE. Questions?
Please DO link to this page! Digg it! / MAKE!

<A HREF="http://www.piclist.com/techref/os/win/api/win32/func/src/f30_13.htm"> GetDIBColorTable</A>

After you find an appropriate page, you are invited to your to this massmind site! (posts will be visible only to you before review) Just type a nice message (short messages are blocked as spam) in the box and press the Post button. (HTML welcomed, but not the <A tag: Instead, use the link box to link to another page. A tutorial is available Members can login to post directly, become page editors, and be credited for their posts.


Link? Put it here: 
if you want a response, please enter your email address: 
Attn spammers: All posts are reviewed before being made visible to anyone other than the poster.
Did you find what you needed?

  PICList 2024 contributors:
o List host: MIT, Site host massmind.org, Top posters @none found
- Page Editors: James Newton, David Cary, and YOU!
* Roman Black of Black Robotics donates from sales of Linistep stepper controller kits.
* Ashley Roll of Digital Nemesis donates from sales of RCL-1 RS232 to TTL converters.
* Monthly Subscribers: Gregg Rew. on-going support is MOST appreciated!
* Contributors: Richard Seriani, Sr.
 

Welcome to www.piclist.com!

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

  .