Smartphone Developer Forum - Trackbar/Slider: Get notifications and change background color?

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Trackbar/Slider: Get notifications and change background color?

Bernd Muent

2005-10-24, 7:57 am

Hi,
1. If the position of a trackbar/slider is moved by the user: what does
exactly happen. It seems that there is send an WM_NOTIY. But how can I
evaluate in the message queue what exactly happend?

2. Does anybody here know how to change the background color of a
trackbar/slider? Is it possible at all?

I did not find out anythink with searching by google.

My idea is something like a derived class with all methods and
properties of TRACKBAR_CLASS but with overriding ON_ERASEBKGRND.

Thank you for tips, Bernd
--
BM Computer-Services, Bergmannstr. 66, 10961 Berlin
Webdesign, Internet, Layout und Grafik
Tel.: 030/20649400, mobil 0175/7419517, Fax: 030/20649401
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Matt

2005-10-24, 7:57 am

Bernd,

I am not really sure how to change the color of the trackbar/slider. I
think that is taken from whatever theme is set under settings->home
screen.

I am also not 100% sure if this is right, but if you want to track
slider notifications, try trapping the WM_HSCROLL or the WM_VSCROLL
notifications.

Matt

Bernd Muent

2005-10-24, 7:02 pm

Matt schrieb:

> I am not really sure how to change the color of the trackbar/slider. I
> think that is taken from whatever theme is set under settings->home
> screen.

I found it out:
case WM_CTLCOLORSTATIC: return (LONG)CreateSolidBrush(MAZECOLOR);

> I am also not 100% sure if this is right, but if you want to track
> slider notifications, try trapping the WM_HSCROLL or the WM_VSCROLL
> notifications.

Yes, that's working, but I have to trap these messages from the
parentWindow!

B.

--
BM Computer-Services, Bergmannstr. 66, 10961 Berlin
Webdesign, Internet, Layout und Grafik
Tel.: 030/20649400, mobil 0175/7419517, Fax: 030/20649401
Web: http://www.bmservices.de, eMail: kontakt@bmservices.de

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