win32/opengl: after initialization, test first the opengl version before going further. If we don't meet the miminum requirements, we show a msgbox. closes #778
win32/opengl: after initialization, test first the opengl version before going further. If we don't meet the miminum requirements, we show a msgbox. closes #778

KeyWeeUsr/kivy,jkankiewicz/kivy,eHealthAfrica/kivy,vipulroxx/kivy,KeyWeeUsr/kivy,Shyam10/kivy,LogicalDash/kivy,darkopevec/kivy,xpndlabs/kivy,wangjun/kivy,aron-bordin/kivy,cbenhagen/kivy,bob-the-hamster/kivy,kived/kivy,Ramalus/kivy,Cheaterman/kivy,cbenhagen/kivy,bob-the-hamster/kivy,jffernandez/kivy,rafalo1333/kivy,janssen/kivy,CuriousLearner/kivy,thezawad/kivy,Cheaterman/kivy,eHealthAfrica/kivy,el-ethan/kivy,bionoid/kivy,darkopevec/kivy,niavlys/kivy,bhargav2408/kivy,xpndlabs/kivy,MiyamotoAkira/kivy,edubrunaldi/kivy,dirkjot/kivy,manthansharma/kivy,vipulroxx/kivy,VinGarcia/kivy,yoelk/kivy,jffernandez/kivy,Davideddu/kivy-forkedtouch,andnovar/kivy,matham/kivy,tony/kivy,andnovar/kivy,manashmndl/kivy,aron-bordin/kivy,eHealthAfrica/kivy,Davideddu/kivy-forkedtouch,dirkjot/kivy,gonzafirewall/kivy,VinGarcia/kivy,xiaoyanit/kivy,jkankiewicz/kivy,jehutting/kivy,Davideddu/kivy-forkedtouch,hansent/kivy,LogicalDash/kivy,manthansharma/kivy,Farkal/kivy,xpndlabs/kivy,ehealthafrica-ci/kivy,bliz937/kivy,JohnHowland/kivy,jffernandez/kivy,arlowhite/kivy,hansent/kivy,manthansharma/kivy,aron-bordin/kivy,niavlys/kivy,vitorio/kivy,gonzafirewall/kivy,arcticshores/kivy,vipulroxx/kivy,manthansharma/kivy,kivatu/kivy-bak,tony/kivy,Farkal/kivy,Cheaterman/kivy,ehealthafrica-ci/kivy,angryrancor/kivy,Shyam10/kivy,ehealthafrica-ci/kivy,youprofit/kivy,jegger/kivy,KeyWeeUsr/kivy,denys-duchier/kivy,denys-duchier/kivy,viralpandey/kivy,jkankiewicz/kivy,LogicalDash/kivy,MiyamotoAkira/kivy,ernstp/kivy,bionoid/kivy,edubrunaldi/kivy,jegger/kivy,adamkh/kivy,arcticshores/kivy,LogicalDash/kivy,matham/kivy,JohnHowland/kivy,iamutkarshtiwari/kivy,darkopevec/kivy,adamkh/kivy,CuriousLearner/kivy,bhargav2408/kivy,dirkjot/kivy,Ramalus/kivy,ernstp/kivy,gonzafirewall/kivy,vitorio/kivy,inclement/kivy,akshayaurora/kivy,ehealthafrica-ci/kivy,niavlys/kivy,mSenyor/kivy,habibmasuro/kivy,autosportlabs/kivy,mSenyor/kivy,jkankiewicz/kivy,wangjun/kivy,denys-duchier/kivy,Davideddu/kivy-forkedtouch,wangjun/kivy,MiyamotoAkira/kivy,JohnHowland/kivy,zennobjects/kivy,adamkh/kivy,jffernandez/kivy,akshayaurora/kivy,manashmndl/kivy,xiaoyanit/kivy,bhargav2408/kivy,rnixx/kivy,yoelk/kivy,inclement/kivy,akshayaurora/kivy,janssen/kivy,el-ethan/kivy,JohnHowland/kivy,dirkjot/kivy,autosportlabs/kivy,tony/kivy,MiyamotoAkira/kivy,kivy/kivy,bliz937/kivy,arlowhite/kivy,iamutkarshtiwari/kivy,kivy/kivy,bob-the-hamster/kivy,VinGarcia/kivy,ernstp/kivy,youprofit/kivy,jegger/kivy,aron-bordin/kivy,angryrancor/kivy,kivatu/kivy-bak,jehutting/kivy,bionoid/kivy,KeyWeeUsr/kivy,hansent/kivy,Farkal/kivy,manashmndl/kivy,youprofit/kivy,darkopevec/kivy,kivatu/kivy-bak,kived/kivy,thezawad/kivy,autosportlabs/kivy,zennobjects/kivy,adamkh/kivy,Ramalus/kivy,eHealthAfrica/kivy,niavlys/kivy,yoelk/kivy,viralpandey/kivy,janssen/kivy,kivy/kivy,arcticshores/kivy,viralpandey/kivy,habibmasuro/kivy,angryrancor/kivy,Shyam10/kivy,vipulroxx/kivy,denys-duchier/kivy,Farkal/kivy,habibmasuro/kivy,cbenhagen/kivy,jehutting/kivy,hansent/kivy,angryrancor/kivy,Shyam10/kivy,matham/kivy,edubrunaldi/kivy,arlowhite/kivy,rafalo1333/kivy,arcticshores/kivy,el-ethan/kivy,rafalo1333/kivy,vitorio/kivy,bliz937/kivy,zennobjects/kivy,thezawad/kivy,kivatu/kivy-bak,gonzafirewall/kivy,mSenyor/kivy,wangjun/kivy,bionoid/kivy,andnovar/kivy,CuriousLearner/kivy,iamutkarshtiwari/kivy,zennobjects/kivy,janssen/kivy,yoelk/kivy,Cheaterman/kivy,matham/kivy,kived/kivy,jegger/kivy,bob-the-hamster/kivy,rnixx/kivy,inclement/kivy,ernstp/kivy,rnixx/kivy,xiaoyanit/kivy