On Jan 31, 2005, at 3:27 PM, Barrie Jones wrote:
Can someone please let me know if the following editField behavior is
normal or possibly caused by my program.
The setup:
I have an EditField that should be updated each time a graphics
operation is performed.
The update code, myField.text = str(number) is in a graphics method
called by the canvas paint event.
"number" is incremented every time the paint event is fired.
The problem:
myField.text appears to update with the first pass, but remains the
same after each subsequent pass through the paint event.
If you are running OS X, then it is possible that the Paint event only
gets called once, and therefore your Editfield only gets updated once.
OS X uses what is called double buffering and will display the last
picture unless you tell it to redraw.
Try something else -- in addition to drawing your picture also draw the
number that you want incremented in the canvas as well. Do something
like this:
g.TextSize = 48
g.ForeColor = &cFF00FF // a nice visible color (pink)
myNumber = myNumber + 1
g.DrawString(Str(myNumber), 0, 48)
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