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Thread Canvas operation not allowed ... Poor me ....
Tue, Oct 8 2013 3:32 PMPermanent Link

Tim Young [Elevate Software]

Elevate Software, Inc.

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Email timyoung@elevatesoft.com

<< As I had the feeling, EWB server is IE based, it is something like
TWebBrowser's delphi component. >>

No, it most definitely is *not*.  The EWB IDE includes a TWebBrowser-like
component that uses IE for *browsing*, but the EWB Web Server has nothing to
do with IE at all.

Your problem was that IE8 was installed on your machine, and IE8 does not
support canvas operations, even if the HTML5 compiler option is turned on.
EWB cannot make browsers support features that they don't support, it can
only surface what is already available.

Tim Young
Elevate Software
www.elevatesoft.com
Sat, Oct 12 2013 5:03 AMPermanent Link

E.B

Ok. I updated IE8 to IE9, before I rode your last message, and things seemed to work better.

But I have the same error sometime. "Sometime" mean, for example, as I write this message I see my EWB actual project where I can't put a new Tpaint control without having a new HTML5 error message ("your browser doesn't support HTML5"). This project ***compile without the new Tpaint control and it has a Tpanel and a Timage on its Form ! So HTML5 works with a Tpanel and a Timage, but a new Tpaint's not accepted !

HELP I'm TURNING MAD !









"Tim Young [Elevate Software]" wrote:

<< As I had the feeling, EWB server is IE based, it is something like
TWebBrowser's delphi component. >>

No, it most definitely is *not*.  The EWB IDE includes a TWebBrowser-like
component that uses IE for *browsing*, but the EWB Web Server has nothing to
do with IE at all.

Your problem was that IE8 was installed on your machine, and IE8 does not
support canvas operations, even if the HTML5 compiler option is turned on.
EWB cannot make browsers support features that they don't support, it can
only surface what is already available.

Tim Young
Elevate Software
www.elevatesoft.com
Sat, Oct 12 2013 10:44 AMPermanent Link

E.B

I apologize ... I had created a new project and I forgot checkin the "HTLM5" option ...
TPanel doesn't require HTML5, but TPaint does ... dear Watson ...

2 hours spent ... 3 points increase in blood pressure ...




E.B wrote:

Ok. I updated IE8 to IE9, before I rode your last message, and things seemed to work better.

But I have the same error sometime. "Sometime" mean, for example, as I write this message I see my EWB actual project where I can't put a new Tpaint control without having a new HTML5 error message ("your browser doesn't support HTML5"). This project ***compile without the new Tpaint control and it has a Tpanel and a Timage on its Form ! So HTML5 works with a Tpanel and a Timage, but a new Tpaint's not accepted !

HELP I'm TURNING MAD !









"Tim Young [Elevate Software]" wrote:

<< As I had the feeling, EWB server is IE based, it is something like
TWebBrowser's delphi component. >>

No, it most definitely is *not*.  The EWB IDE includes a TWebBrowser-like
component that uses IE for *browsing*, but the EWB Web Server has nothing to
do with IE at all.

Your problem was that IE8 was installed on your machine, and IE8 does not
support canvas operations, even if the HTML5 compiler option is turned on.
EWB cannot make browsers support features that they don't support, it can
only surface what is already available.

Tim Young
Elevate Software
www.elevatesoft.com
Wed, Oct 16 2013 3:36 PMPermanent Link

Tim Young [Elevate Software]

Elevate Software, Inc.

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Email timyoung@elevatesoft.com

E.B.,

<< I apologize ... I had created a new project and I forgot checkin the
"HTLM5" option ... TPanel doesn't require HTML5, but TPaint does ... dear
Watson ... >>

Yes, only TPaint requires the IE HTML5 option turned on.  Hopefully one of
these days I can just kill that option and only support IE9 or higher.

I'll be including a new slide show project with the next EWB release, and it
will show some of the cool things you can do with the TPaint control in
terms of fading/effects, and will also include a new HTML5 audio control.

Tim Young
Elevate Software
www.elevatesoft.com
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