Eclipse Community Forums: Eclipse Platform » How to detect key state when clicking a table column

Help

Home

Home » Eclipse Projects » Eclipse Platform » How to detect key state when clicking a table column

Show: Today's Messages :: Show Polls :: Message Navigator

How to detect key state when clicking a table column [message #327072]

Tue, 08 April 2008 15:01

David Pérez

Messages: 228
Registered: July 2009

Senior Member

Hi,

I would like to react to the SWT.Selection event on click of a header of a
table column, depending on the state of the Control key.

But Event.stateMask is always 0.
I have tried to capture MouseDown on the table, but isn't called when
clicking on a header.

Any suggestion will be greatly welcome.

Report message to a moderator

Re: How to detect key state when clicking a table column [message #327078 is a reply to message #327072]

Tue, 08 April 2008 17:53

Grant Gayed

Messages: 2150
Registered: July 2009

Senior Member

Hi,

This is not currently supported. SWT.Selection events by convention don't
have their state mask set with this info, so you need to get a MouseDown,
which TableColumn does not send. The existing request for a table header
widget, which is what would surface this event, is
https://bugs.eclipse.org/bugs/show_bug.cgi?id=93129 .

Grant

"David Perez" <craquerpro@yahoo.es> wrote in message
news:b6d2b04db5b17c12027fdb049f1e4610$1@www.eclipse.org...
> Hi,
>
> I would like to react to the SWT.Selection event on click of a header of a
> table column, depending on the state of the Control key.
>
> But Event.stateMask is always 0.
> I have tried to capture MouseDown on the table, but isn't called when
> clicking on a header.
>
> Any suggestion will be greatly welcome.
>

Report message to a moderator

Re: How to detect key state when clicking a table column [message #327084 is a reply to message #327078]

Wed, 09 April 2008 06:56

David Pérez

Messages: 228
Registered: July 2009

Senior Member

Thanks Grant,
your tip has been helpful. I'm surprise to see how such a long
outstanding request remains unsolved (from year 2005).

Here is my workaround (for Win32, the only platform I'm currently using):

if ((OS.GetKeyState(OS.VK_CONTROL) & 0xF0) == 0) {
....
}

In this way I can do specific processing when the control key is being
held down. Luckily most Win32 API's are accessible through SWT.

Grant Gayed wrote:

> Hi,

> This is not currently supported. SWT.Selection events by convention don't
> have their state mask set with this info, so you need to get a MouseDown,
> which TableColumn does not send. The existing request for a table header
> widget, which is what would surface this event, is
> https://bugs.eclipse.org/bugs/show_bug.cgi?id=93129 .

> Grant

Report message to a moderator

Previous Topic:	Open Resource filePath in a Cheat Sheet
Next Topic:	Viewing console output of exec right away

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

]

Current Time: Thu Aug 08 16:28:08 GMT 2024

.:: Contact :: Home ::.

Breadcrumbs

Sign up to our Newsletter