C / C++ / MFC

Re: transparent window with OpenGL

2-Jul-09 5:35

Never used it. A quick investigation using Google tells me that basically it is not directly supported. Some people have stated that this solution[^] works. Good luck.

Sarath C2-Jul-09 5:39

Sarath C

2-Jul-09 5:39

I never programmed an OpenGL with transperancy in background. Are you looking for something like this?

ftp://download.nvidia.com/XFree86/Linux-x86/169.12/README/chapter-23.html[^]

-Sarath.
"Great hopes make everything great possible" - Benjamin Franklin

My blog - Sharing My Thoughts

Re: transparent window with OpenGL

Karl Phillip2-Jun-11 6:10

Karl Phillip

2-Jun-11 6:10

This thread shows how: http://stackoverflow.com/q/4052940/176769

CSliderCtrl

jung-kreidler2-Jul-09 4:14

Re: CSliderCtrl [modified]

2-Jul-09 4:14

Hi all,

I have a dialog with some sliders on it. The slider are derived from CSliderCtrl.
I try to catch the LButtonDblClk message within my CSliderCtrl derived class, but the message does not arrive (Breakpoint is never hit). In the dialog the double click appears (breakpoint is hit), but only in case I click outside the slider controls. In case I click inside the slider controls nothing happens...

Any thoughts?

Regards,
jung-kreidler

led mike2-Jul-09 4:19

2-Jul-09 4:19

jung-kreidler wrote:
I try to catch the LButtonDblClk message within my CSliderCtrl derived class

How? Post the relevant code that is responsible.

Also I am not seeing any support for such a message in the documentation. Where have you seen information stating it does?

modified on Thursday, July 2, 2009 10:27 AM

jung-kreidler2-Jul-09 19:36

2-Jul-09 19:36

The WM_LBUTTONDBLCLK can be handled with the message handler:

BEGIN_MESSAGE_MAP(MSlider, CSliderCtrl)
ON_WM_LBUTTONDBLCLK()
END_MESSAGE_MAP()

void MSlider::OnLButtonDblClk(UINT nFlags, CPoint point)
{
CSliderCtrl::OnLButtonDblClk(nFlags, point);
}

...guess you have seen such piece of code already...

Chandrasekharan P2-Jul-09 19:56

Chandrasekharan P

2-Jul-09 19:56

jung-kreidler wrote:
ON_WM_LBUTTONDBLCLK()

did u manually add this or using Class Wizard?

jung-kreidler2-Jul-09 20:00

2-Jul-09 20:00

VS2008 automatic: Select class in Class View, Open Properties, Select Messages List, Add blahblah

I think it is of no relevance in what way the code has been added. The question is, why the breakpoint never gets hit in case I double click on the slider.

SandipG 2-Jul-09 21:26

SandipG

2-Jul-09 21:26

With following code i was able to get double click message in my Slider control.
I hope it works for you.

DWORD dwClssStyle = ::GetClassLong(m_slider.m_hWnd, GCL_STYLE);
dwClssStyle |= CS_DBLCLKS;
dwClssStyle = ::SetClassLong(m_slider.m_hWnd, GCL_STYLE, (LONG)dwClssStyle);

Regards,
Sandip.

jung-kreidler2-Jul-09 22:52

2-Jul-09 22:52

Yep, that's it.

Thank you.

led mike21-Jul-09 6:20

21-Jul-09 6:20

Nice!

SandipG 21-Jul-09 7:48

SandipG

21-Jul-09 7:48

Thanks

I never thought any one would follow up such old message.. Thumbs Up | :thumbsup:

Regards,
Sandip.

led mike21-Jul-09 10:50