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Is there an equivalent of win32 API "SendMessage" in U++ [message #11132]

Tue, 21 August 2007 16:57

bitsun
Messages: 12
Registered: March 2007
Location: Germany

Promising Member

currently I am trying to draw sth in U++ window with VTK. It seems that I have some progress already.

I came across such problem, I already have a windows handle (hwnd)of a vtk render window, and I want to send some message to this vtk render window. I know that in win32 API, there is a function:
SendMessage(hwnd,message,wParam,lParam),
which can accomplish this task. But this is only a solution in windows. However I hope I can find a cross-platform solution. So I am wondering ,is there any equivalent of SendMessage, in U++.
any hints are appriecated !

thanks in advance

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Re: Is there an equivalent of win32 API "SendMessage" in U++ [message #11136 is a reply to message #11132]

Tue, 21 August 2007 22:34

mirek
Messages: 13975
Registered: November 2005

Ultimate Member

Not sure I understand. If hwnd is all you have to "contact" VTK, then you probably should not care about crossplatform at this level?

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Re: Is there an equivalent of win32 API "SendMessage" in U++ [message #11143 is a reply to message #11136]

Wed, 22 August 2007 12:47

bitsun
Messages: 12
Registered: March 2007
Location: Germany

Promising Member

You mean this level is too low?
Here the window handle is of type void* ,it can be obtained by vtkRenderWindow's method,so it is not neccessarily a win32 windows handle.

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Re: Is there an equivalent of win32 API "SendMessage" in U++ [message #11172 is a reply to message #11143]

Sat, 25 August 2007 14:12

mirek
Messages: 13975
Registered: November 2005

Ultimate Member

What I mean that IMO this depends on VTK rather than on U++....

Anyway, U++ standard mechanism of passing widget events is Callback. However, this is C++, you always have all of your platfrom API at your disposal.

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