trackbar with transparent background

[Guest]

Does anyone have a workaround on how to make a trackbar have a transparent
background? I remember seeing one once but I cant find it any more
Thanks
Andrew

 

[luxspes]

Does anyone have a workaround on how to make a trackbar have a transparent
background? I remember seeing one once but I cant find it any more
Thanks
Andrew

http://msdn.microsoft.com/library/d...temwindowsformscontrolclassbackcolortopic.asp
"BackColor for CheckBox, Label, PictureBox, RadioButton, and TRACKBAR is
transparent by default."(Copy&Pasted)
But I guess you are asking for something different...

 

[Guest]

The default BackColor for TrackBar is "Control" - The TrackBar doesnt support
BackColor==Transparent
Andrew

 

[Guest]

I have just uploaded a modified TrackBar control to my site which will allow
you to set a Transparent background. It also allows you to custom draw the
individual items so that you may easily modify the appearance of the control.
http://www.dotnetrix.co.uk/controls.html

 

[Guest]

Thanks - I ended up writing my own workaround anyway - its actually not that
hard and would have been pretty easy to have fixed this in the actual trackbar

The trick is to derive a class from System.Windows.Forms.TrackBar, override
WndProc and implement the WM_PAINT message yourself
Andrew

 

[Guest]

That's very similar to what I did, but I intercepted NM_CUSTOMDRAW rather
than WM_PAINT.