Low-level definition of graph. video-regime...

[ArtemESC]

Hello
How subj. make?

[Tedd]

What do you mean by "graphics video regime" ?

You want to access low-level graphics hardware?
I think more words are needed :wink
(It's okay if your english is not so good, but try to explain :U)

[ArtemESC]

>>Tedd
My English is really bad, but i try to explain...
  How set or get video-regime?
        Video-regime is screen parametrs,
                             for example: 640   480
                                               1024 768
I know what exist the BIOS function, but it allow detect and set "video" parametrs before 640: 480 only...

[hitchhikr]

If it's for windows: ChangeDisplaySettings()/EnumDisplaySettings().

Otherwise take a look at the VBE/VESA stuff for MSDOS.

[ArtemESC]

>>hitchhikr 
Thanks, but i want low-level (hardware-level) access to memory...

[hitchhikr]

What do you want to do exactly, what kind of memory do you want to have access to and under what os ?

[ArtemESC]

...memory... - video-memory
...os... - Really, i write os...

[ArtemESC]

Sorry for my two previous topics - i knew what i repeated on another topic...
         

[hitchhikr]

http://www.delorie.com/djgpp/doc/ug/graphics/vesa.html

You may want to access the linear frame buffer via vesa, most recent gfxcards support at least the 2.0 specs i think.

[ArtemESC]

Thanks, but ...
http://www.delorie.com/djgpp/doc/ug/graphics/vesa.html - reference is invalid...

[BogdanOntanu]

ArtemESC,

There is no need to double post ...

[ArtemESC]

>> ArtemESC,
>>
>> There is no need to double post ...
    Why did i double post?
    Did you meant the (transfered)  topic in 16-bit programming?So, I asked other question...

[Tedd]

For Win32:

Code Select Expand

LONG ChangeDisplaySettings(LPDEVMODE  lpDevMode, DWORD dwflags);

[ArtemESC]

>>Tedd
     In clearly assembler... I must use hardware resource of a computer.
                       I "work" in ring 0. Please, give me a simple example or net-references...

[Tedd]

Then there is no easy way - each graphics device is (very!!) different.
If you only use VGA then it may be simple, but SVGA is not. VESA can help sometimes.

http://www.osdever.net/cottontail/#Video -- links to some information