DerelictGL program draw nothing

[Zhenya]

On Monday, 3 September 2012 at 17:12:04 UTC, cal wrote:
> On Monday, 3 September 2012 at 17:08:55 UTC, cal wrote:
>> On Monday, 3 September 2012 at 17:02:46 UTC, Zhenya wrote:
>>> that dosn't work
>>
>> How large is your window?
>>
>> glViewport(0,0,width,height);
>>
>> should really be setting to the window size - so if you make 
>> your window 800,800, this should be
>>
>> glViewport(0,0,800,800);
>
> Just saw it, never mind. Also, I think before you draw, you 
> need to set the matrix mode to modelview, and load identity...
>
> glMatrixMode(GL_MODELVIEW);
> glLoadIdentity();
> display();

const uint width = 200;
const uint height = 200;

> glMatrixMode(GL_MODELVIEW);
> glLoadIdentity();
> display();

I added it to this code,but nothing changed(