Zoom View

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Haramanai

Is it possible?
I found this from here : http://www.blitzmax.com/Community/posts.php?topic=42799&hl=zoom

rem 
bbdoc: Set the zoom factor of the viewport
about: SetViewZoom allows you to zoom all drawn elements at once, instead
of scaling each individual element. Use the @zoom parameter to define the
level of zoom, a value of 0 is the default zoom, >0 zooms in, <0 zooms out.
endrem
Function SetViewZoom(zoom:Float)
	
	Global o_zoom:Float
	
	glMatrixMode GL_PROJECTION
	glScalef 1.0+(zoom-o_zoom),1.0+(zoom-o_zoom),1.0+(zoom-o_zoom)
	o_zoom = zoom
	
	glMatrixMode GL_MODELVIEW
	glLoadIdentity
	
End Function

It's good use of OpenGL.
But when I zoom in and out the origin changes...
Also I cannot find a proper way to get coordinates using the MouseX() and MouseY().

Is there another way to do this?
Or I am just loosing my time?
Is there a probability to be impemented in Max2D?