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DHCTRL not refreshed [message #50819]

Thu, 03 January 2019 18:50

mdelfede
Messages: 1310
Registered: September 2007

Ultimate Contributor

Hi,

I've this problem in Windows 7; the DHCTRL is inside a TabCtrl.
It doesn't get refreshed when moving another window over it. The refresh happens ONLY when I move the mouse over an object (which triggers the update from my code). You can see from the image below:

index.php?t=getfile&id=5731&private=0

I tried to set some breakpoints in refresh and status code, it doesn't get called when moving something over my control.
Putting a breakpoint inside DHCtrl's WindowProc shows that WM_PAINT and WM_NCPAINT event are indeed sent by windows, but probably they're not processed.
On Linux it's all ok, as usual.

Attachment: dhctrl.PNG
(Size: 124.42KB, Downloaded 622 times)

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Re: DHCTRL not refreshed [message #50820 is a reply to message #50819]

Thu, 03 January 2019 19:21

mdelfede
Messages: 1310
Registered: September 2007

Ultimate Contributor

The above problem is ONLY on Windows7 on a real machine.
The same thing DOESN'T HAPPEN on a windows 7 under VirtualBox... weird.

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Re: DHCTRL not refreshed [message #50825 is a reply to message #50820]

Sat, 05 January 2019 13:21

mirek
Messages: 14271
Registered: November 2005

Ultimate Member

Not having Win7 machine around, I will for now hope you will have luck resolving this...

Mirek

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Re: DHCTRL not refreshed [message #50828 is a reply to message #50825]

Sat, 05 January 2019 15:26

mdelfede
Messages: 1310
Registered: September 2007

Ultimate Contributor

Hi,

I'm fixing some printing sfuffs on my app, then I'll look at this problem.
The weird stuff is that it behaves differently on VirtualBox and on a real machine, both with windows 7...

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Re: DHCTRL not refreshed [message #50943 is a reply to message #50828]

Mon, 14 January 2019 19:29

mdelfede
Messages: 1310
Registered: September 2007

Ultimate Contributor

Hi Mirek,

this is "solved" modifying the window proc of my ctrl like this :

LRESULT OCEView::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
{
	if(message == WM_PAINT)
	{
		RefreshLayout();
	}
	return DHCtrl::WindowProc(message, wParam, lParam);
}

Don't ask why... I really dont' know. I've tried with everything else with no changes or crashes.
This one works. Simple Refresh() doesn't, nor UpdateWindow nor anything else.

Ciao

Massimo

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Re: DHCTRL not refreshed [message #50948 is a reply to message #50943]

Mon, 14 January 2019 22:58

mirek
Messages: 14271
Registered: November 2005

Ultimate Member

Would it work if put after

LRESULT GLCtrl::GLPane::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
{
	if(message == WM_PAINT && s_openGLContext) {

?

Mirek

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Re: DHCTRL not refreshed [message #50949 is a reply to message #50948]

Tue, 15 January 2019 00:08

mdelfede
Messages: 1310
Registered: September 2007

Ultimate Contributor

Hi,

I'm not using GLCtrl but DHCtrl directly...OpenCascade library already has the OpenGL layer, just needs an hwnd.

EDIT
Thinking a bit more... I could use the generic interface of OpenCascade, which should do the job with your GLCtrl
control. It's called Aspect_NeutralWindow, in replacement of WNT_Window and X11_Window, and requires the "manual" context creation, which your control does.

[Updated on: Tue, 15 January 2019 00:16]

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Re: DHCTRL not refreshed [message #50952 is a reply to message #50949]

Tue, 15 January 2019 09:07

mirek
Messages: 14271
Registered: November 2005

Ultimate Member

mdelfede wrote on Tue, 15 January 2019 00:08

Hi,

I'm not using GLCtrl but DHCtrl directly...OpenCascade library already has the OpenGL layer, just needs an hwnd.

EDIT
Thinking a bit more... I could use the generic interface of OpenCascade, which should do the job with your GLCtrl
control. It's called Aspect_NeutralWindow, in replacement of WNT_Window and X11_Window, and requires the "manual" context creation, which your control does.

Well, could you please test our OpenGL Ctrl (e.g. OpenGL/examples) with Win7?

Mirek

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