Calling a method on another form in C#

Question

I am building a basic Image editor. In my app, if the user wants to resize the image a new form pops up and asks the user to input an new width and height for the image.

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Answer 1

Add properties to your resize form that your main form can interrogate after the resize form is closed, like ...

DialogResult dr = resizeForm.ShowDialog();

if( dr != DialogResult.Cancel )
{
  var newH = resizeForm.Height;
  var newW = resizeForm.Width;

  // do something with new vals.
}