Plot on frm A when frm B is closed

[SSb]

Hi all,
In one of my programs I have a form A which remains maximized throughout. By clikcing on a button on this form another form B comes up (using ShowDialog) covering part of form A. The user enters some data in this form and then clicks "Ok". After which form B closes.

What I would like to do is, when form B closes some plots be made on form A. By passing variables between the two forms I'm able to generate the data and make the plots when the user clicks a button "Plot" on form A.

How can I do this (call the plotting function and make plots) automatically when form B is closed i.e. when user clicks "Ok" on form B, without having the user to click "Plot" on form A?

Thanks,
Saurabh

 

[vis781]

Ok, so what you need to do here is get everything in 'screen' co-ordinates NOT client co-ordinates. A form has a couple of methods for doing this..

PointToScreen
 
RectangleToScreen

These will either covert the given point in the methods argument into screen co-ordinates. Once you have this its just a matter of placing a 'friend property' in form b to hold the point or rectangle. In your case i would use a rectangle seeing as it's a 'plot' that you want. When you click the button/plot in formB pass the buttons client retangle property to your new property. Then when closing formb set a private variable of the type rectangle to the property in formb....Something like....

FormB
 
Private _plotRectangle as rectangle = rectangle.empty
 
Friend Readonly Property PlotRectangle as rectangle
Get
Return me._plotRecatngle
End Get
End Property
 
'ButtonClick
 
me._plotrectangle = me.Button.clientrectangle
 
 
FormA
 
Private ScreenPlotRectangle as rectangle = rectangle.empty
 
Dim FrmB as new formb
Frmb.showdialog
Me.ScreenPlotRectangle = me.rectangletoscreen(frmb.plotrectangle)
frmb.dispose

Or something like that.