WGL: get rid of glXQueryDrawable in describeDrawable

[Roderick Colenbrander]

Hi,

The use of glXQueryDrawable causes crashes during the creation of +wgl
logs of fglrx while it worked on Nvidia. I expected this to be a
driver bug but where GLX 1.2 calls like glXMakeCurrent can operate on
X drawables, GLX 1.3 calls like glXQueryDrawable only have to operate
on GLXDrawable types like GLXWindow, GLXPixmap and GLXPbuffer. This
patch gets rid of glXQueryDrawable and reworks describeDrawable to
work on other data.

Regards,
Roderick Colenbrander
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