can some one help me in getting started?

i am an orthodontic surgeon and i am working on a small

project in VB6 to help me make some studies on scanned

x-ray films of human head taken in side pose, where i will

be making measurements between some standard anatomic

points, some times drawing lines connecting predefined points

and most of the times finding the angles between such lines

connecting 3 points.

i intend to put a dot on the image when i click the mouse.

the dot should be movable on the screen, since i might

have to repoition the dot to make it accurate.

then there will be options to connect these lines as particular

study reqires.

i have succeded only to some extent with out using any 3rd party tools.

GRAPHICSMILL looks very clever and resourceful.

i decided to learn using this by exploring the help documentation

to understand the options i need and that this particular tool is giving

(since the hospital where i work and live is remote village and feasibility of

procuring a VB expert is just next to impossible)

the problem is that i donot know how to start using the objects

that this particular tool gives.

for example i tried to test how the bezier curve is generated by the

code that the help documentation shows :

=================================

[Visual Basic 6]

BitmapViewer1.AutoUpdate = False
    
With BitmapViewer1.Bitmap
    .CreateNew 185, 145, Format24bppRgb
    
    .Graphics.Engine = DrawingEngineGdiplus

    'Draw line
    .Graphics.Pen.ForeColor = ColorRed
    .Graphics.Pen.Weight = 5
    .Graphics.DrawLine 10, 10, 100, 60

    'Draw polyline
    .Graphics.Pen.ForeColor = _
        .Color.ModifyAlpha(ColorGreen, 150)
    .Graphics.Pen.Style = PenStyleDash
    .Graphics.Pen.Weight = 2
    .Graphics.DrawPolyline Array(20, 30, 50, 2, 180, 30, 80, 140)

    'Draw beizer
    .Graphics.Pen.ForeColor = ColorBlue
    .Graphics.Pen.Style = PenStyleSolid
    .Graphics.Pen.Weight = 2
    .Graphics.DrawBezier 5, 5, 20, 150, 165, 80, 175, 10
End With
BitmapViewer1.AutoUpdate = True

========================================

as i understand, i have to select the 2 aurigma components from

the project menu, then place a BitmapViewer1 on the form and

initiate the execution of the above code with an event.

but i get the following error:

Method CreateNew failed. Argument 'pixelFormat' has an

unappropriate value (given pixelFormat is not a member of

pixelFormat enumeration)

what i think is that i am unable to instantiate the class "Graphics"

in this test project.

how do i do it?

can any body kindly help me with this thing?

i am not that much good at programming.

kindly answer my question with all the points needed

keeping in focus that i might not be knowing some

points that you might think are trivial (silly)

(and if possible please drop a small project with source code

in which

1. i can add a colored point on the control with the

mouseclick,

2. can reposition it as needed

3. a text box which holds the x and y coordinates of the dot. i can use these coordinates

to draw lines on the image,

4. ability to draw lines between 2 points by selecting 2 points one after the other

if that much help is given to me, then i can work out my self and find distance, find angles)

please.... :S

Edited by user Monday, December 24, 2007 4:27:11 PM(UTC)  | Reason: Not specified