My SimpleOpenGLControl is called "MapGLControl"

AdjustZoom and AdjustRotation are methods that just make sure the new value of Zoom/Rotation is correct.

When I render, I make use of the Rotation and Zoom variables. i.e.

Gl.glRotate3f( 0.0f, Rotation, 0.0f ); //Rotation is a float

Here's the code:

private void MapGLControl_KeyDown( object sender, KeyEventArgs e )
{
if( e.KeyCode == Keys.Z )
{
AdjustZoom( 1.0f );
}
else if( e.KeyCode == Keys.X )
{
AdjustZoom( -1.0f );
}
else if( e.KeyCode == Keys.Add )
{
AdjustRotation( 3.0f );
}
else if( e.KeyCode == Keys.Subtract )
{
AdjustRotation( -3.0f );
}
}


Thanks by your answer, I'll try it.
But, I have using a function called renderize, which, draw the scene.

My code will be like this:

float zoom;

private void MapGLControl_KeyDown( object sender, KeyEventArgs e )
{
if( e.KeyCode == Keys.Z )
{
zoom = 1.0f;
}
else if( e.KeyCode == Keys.X )
{
zoom = -1.0f ;
}
}

in the function Renderize:

glTranslatef ( 0.0f,0.0f,zoom);

something like this. But this code don't work.

Based on that example, you're not initializing zoom to anything, and pressing X or Z will just set zoom to 1.0 or -1.0; wouldn't it make more sense to increment/decrement it? Such as:

float zoom = 0.0f;

private void MapGLControl_KeyDown( object sender, KeyEventArgs e )
{
if( e.KeyCode == Keys.Z )
{
zoom += 1.0f;
}
else if( e.KeyCode == Keys.X )
{
zoom -= 1.0f;
}
}

BTW, you can't use KeyDown to check for certain special keys, such as the arrow keys...see the post Key Events for the solution to that problem.

Thank's, Could you send me a complete example of this??

At least, an expample whith a polygon 3D, which, can move whith keyboard. But complete, please.
I'll Thank you very much.

Example application sent. Let me know if you didn't get it!