need Help on building a GeometryApplication

Question

hi ,
I m trying to build a geometry application in which upon selection of a figure by a user a seperate window opens for him to punch in the dimension based on these dimensions (ex upon selection of rectangle one has to enter length,breadth ,if a circle is selected then the box should change accepting radius or Diameter)after the dimensions are give the figure is generated and this should be saved as a bitmap
1.>My Q is how do i get this save option i.e how do i save the generated figure as a bitmap
2.>Currently in my application the dimensions are hardcoded into the program I want to make this variable i.e the user should be able to give the dimensions based on these dimensions the figure must be generated.
I have already written the code for ellipse,rectangle and need help regarding the above mentioned problems.
please help me regarding this actually any help regarding this would be a great help....this is a software for use by visually Impaired....
thank you
cheers!!
Arun....

Arun Sharma · Answer

thanks for the quick reply mike....
What can i do about the first problem mike...
as u know when we are drawing figure like rectangles we define the pen and the dimension...
Is there anyways i can make them variable ...
in the sense that a user should be able to give the dimensions and based upon the window size and application limitation we can throw an exception if the user iiss attempting to set a size higher than a prescribe limit

Mike Gold · Answer

to save an object to a bitmap, you can paint to a bitmap directly by getting a Graphics handle to it.
1.  Create your bitmap     -->  Bitmap myBitmap = new Bitmap(100, 100);
2.  Get a graphics handle  -->
using (Graphics g = Graphics.FromBitmap(myBitmap ))
{
g.Draw...
}
3. Save the bitmap  -->   myBitmap.Save...