OpenGL and Visual Basic

Dears,

Some questions related to OpenGL and Visual Basic

How can I add openGL to Visual Basic?

Is OpenTK an alternative to OpenGL?

How to implement Select and Pick options in OpenGL or OpenTK (with visual basic)?

How can I extrude a 2D drawings in VB OpenGL?

Please discuss about these questions below as I need it very urgently

Simple CAD program ZCAD Free Download

ZCAD - Simple CAD Program for Mechanical engineers

ZCAD features

2D and 3D drawing
Fast OpenGL rendering
Cross Platform
Support DXF files
SHX, TTF fonts support
Polar tracking
Object snap

ZCAD Free Download page : http://shamangrad.ru/project.php?act=view&prj=zcad

SolveSpace CAD software demo and download

SolveSpace is a constraint-based parametric modeler with simple mechanical simulation capabilities - works under Windows XP, Vista, 7, and 8

Best thing : Its a FREE Software!!

SolveSpace Features

Sketch sections using lines, rectangles, datum lines and points circles, arcs of a circle, datum circles
Build solid model with extruded or lathed (solid of revolution) sketch or Boolean operations: union (add material), difference (remove material)
Parametric and associative assembly import parts and drag them with six degrees of freedom or import mirrored or with arbitrary scale

Gallery

Export formats for SolveSpace

For 2D

DXF, EPS, PDF, SVG, HPGL, STEP;

For 3D

3D wireframe as DXF and STEP; triangle mesh as STL and Wavefront OBJ
NURBS surfaces as STEP.

You can also export toolpath as G code

Solvespace tutorials http://solvespace.com/tutorial.pl

Download Solvespace here http://solvespace.com/download.pl

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