Canvas over an HTMLViewer issue

Targets macOS
1

Hi,
I have an HTMLViewer in my window, and I also placed a canvas above the HTMLViewer (I also set the canvas to be on top via the IDE button which moves controls up to the very top of the z-order).

Depending on a buttons state - either:

HTMLViewer1.visible = False Canvas1.Visible = True

Or

HTMLViewer1.visible = True Canvas1.Visible = False

However, whenever the HTMLViewer.visible=False, the canvas also disappears???

Is this because I dragged my canvas over the top of the HTMLViewer in the window, and now the canvas is somehow part of the HTMLViewer - resulting in it becoming invisible when the HTMLViewer is invisible?

If I put the HTMLViewer just on the left side of the window, and the canvas on the right side of the window - this works as expected.
It is only when I place the canvas on top of the HTMLViewer in the window, that this fails.

Thank you all in advance.

2

HtmlViewer never was playing nice with other controls. If the canvas is a child of the HtmlViewer then you can try to set

canvas1.parent = nil

in the open event. What are you trying to do?

3

I simply have a “Welcome” canvas which hides / covers the HTMLViewer until a page is loaded.
Then the canvas SHOULD get hidden, resulting in the HTMLViewer’s content becoming visible.

I will try that line of code you just posted.

Thanks.

UPDATE
Beatrix, your line of code seems to have worked!

Thank You.

4

You could consider a PagePanel.

Panel 0 has the Canvas and Panel 1 has the HTMLViewer.

Simon.

5

Also a good idea.
I will bear that in mind for future reference.

Thanks.

6

Or…

  1. Set HTMLView.visible=false
  2. set Canvas.visible=true
  3. when HTML load completed. switch the visiblity flags
7

Now I have plenty of options :slight_smile:
Thanks Dave.

8

OR…

  1. Set htmlView content to “Hello There”
  2. load the URL
  3. it will replace the view in #1 when complete

no canvas required.

9

That’s also a neat way of doing it.
Thanks.