How to keep the WinForm active after click OK

In the attached script I want to keep the form active for additional instances of drawing the circle. At present when I click OK the form closes and the prompt asks for a point then draws the circle. I want the form to return as active for another circle until I press the cancel button.

I am a newbie to Python and GUI and looking for help understanding basics. Study indicates it has something to do with main but I am unclear how to manage this structure.

TIA
RobbWinForms-Simple-3.py (2.7 KB)

Is it even possible to achieve this? I am surprised at the lack of help with this question. Is it too basic to be interesting? I have tried a variety of strategies including OnClick inside and outside the class but the form always closes and needs to be rerun.

Is there a good primer on how to hook up Winforms to scripting?

Thanks In Advance

Try this:

Change the main part

if __name__ == "__main__":
    bool = True
    while bool:
        form = CirForm()
        if form.ShowDialog() == System.Windows.Forms.DialogResult.OK:
           rs.AddCircle(rs.GetPoint(), form.radius)
        else:
            bool = False

Iā€™m not a python expert but this should work :slight_smile:

This creates a boolean (True or False) and continues to rerun the same part of the script until the bool = False
If you press Ok in the form it returns the System.Windows.Forms.DialogResult.OK. If you click Cancel you get a System.Windows.Forms.DialogResult.Cancel. So when anything else comes up than a OK it changes the bool = False and the while loop stops.

If you put the form = CirForm() before the while bool: then it keeps the size of your previous circle :wink: like this:

if __name__ == "__main__":
    bool = True
    form = CirForm()
    
    while bool:
        form.CenterToScreen()
        if form.ShowDialog() == System.Windows.Forms.DialogResult.OK:
            bool = True
            rs.AddCircle(rs.GetPoint(), form.radius)
        else:
            bool = False

Many thanks for this - it works perfectly. I am going to play around with this a bit but it is clear that I need more understanding of " if name == ā€œmainā€: ".

I have been searching on this for a while and find the results not very satisfying. Any good references that you know of?

If you are looking to learn the basics of python you can check:

scroll down a bit and click on python. Then you get to learn python from the start. Defining variables. Making functions and if statements / loops. It lets you make assignments before you can continue so you really learn it there by doing it :slight_smile:

Looks like a great place to spend some time. Thanks for the link.

GUI is still the end game for me and more understanding of how to get there is the goal.

Again - many thanks for your input.