C / C++ / MFC

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forcing a repaint on a dialog Nish Nishant7-Jun-02 1:14 Nish Nishant 7-Jun-02 1:14  Is this the right way to force a dialog to repaint it's client area? CRect r; GetClientRect(&r); InvalidateRect(r); Nish Author of the romantic comedy Summer Love and Some more Cricket [New Win] Buy it, read it and admire me Re: forcing a repaint on a dialog Tomasz Sowinski7-Jun-02 1:26 Tomasz Sowinski 7-Jun-02 1:26  Just call CWnd::Invalidate, which calls ::InvalidateRect and passes NULL as rectangle. In that case, complete client area is invalidated. Why are you doing this to CDialog? Tomasz Sowinski -- http://www.shooltz.com - It's for protection - Protection from what? Zee Germans? Re: forcing a repaint on a dialog Nish Nishant7-Jun-02 1:45 Nish Nishant 7-Jun-02 1:45  Thanks Tomasz Nish Author of the romantic comedy Summer Love and Some more Cricket [New Win] Buy it, read it and admire me Re: forcing a repaint on a dialog Ravi Bhavnani7-Jun-02 5:26 Ravi Bhavnani 7-Jun-02 5:26  Tomasz is right, in that calling Invalidate() will make the window eligible for repainting. But to force a repaint, you should do: Invalidate(); UpdateWindow(); /ravi Let's put "civil" back into "civilization" http://www.ravib.com ravib@ravib.com Re: forcing a repaint on a dialog Nish Nishant7-Jun-02 5:39 Nish Nishant 7-Jun-02 5:39  Thanks Ravi It was basically for my demo app in my new article By the way it repainted without the call to UpdateWindow()() on my Win XP prof Maybe if none of the other threads or processes are busy an Invalidate() alone will do, but if the system is real busy, then we can force it by an UpdateWindow() I am correct I hope Nish Author of the romantic comedy Summer Love and Some more Cricket [New Win] Buy it, read it and admire me Re: forcing a repaint on a dialog Ravi Bhavnani7-Jun-02 9:14 Ravi Bhavnani 7-Jun-02 9:14  Yes, UpdateWindow() causes Windows to send a WM_PAINT message to an invalidated window, while Invalidate() cause WM_PAINT to be posted. I use UpdateWindow() to force a repaint when I can't afford to wait for the posted WM_PAINT to eventually arrive. It probably doesn't make a difference in your demo app. /ravi Let's put "civil" back into "civilization" http://www.ravib.com ravib@ravib.com File extension 7-Jun-02 0:51 7-Jun-02 0:51  Hi How can i associate a file extension with my app? i want that all double clicks will will open the files in the same instance of my app. thanks Re: File extension Nish Nishant7-Jun-02 0:53 Nish Nishant 7-Jun-02 0:53  Anonymous wrote: How can i associate a file extension with my app? If this is an SDI app, you can use these lines of code in the InitInstance:- EnableShellOpen(); RegisterShellFileTypes(TRUE); m_pMainWnd->DragAcceptFiles(); //for drag/drop support Anonymous wrote: want that all double clicks will will open the files in the same instance of my app. For this you need to use a mutex to prevent multiple instances. You check if the prog is already running and if it is already running [search for it using window title/class name] post a WM_COPYDATA message to it passing the command line. Nish Author of the romantic comedy Summer Love and Some more Cricket [New Win] Buy it, read it and admire me Re: File extension Navin7-Jun-02 4:32 Navin 7-Jun-02 4:32  There's an article by Joseph Newcomer that describes how to limit your app to one instance. In the C++/MFC section, it's called "Avoiding Multiple Instances of an Application". No generalization is 100% true. Not even this one. Re: File extension Atlantys6-Oct-02 10:13 Atlantys 6-Oct-02 10:13  Nish - Native CPian wrote: How can i associate a file extension with my app? If this is an SDI app, you can use these lines of code in the InitInstance:- EnableShellOpen(); RegisterShellFileTypes(TRUE); m_pMainWnd->DragAcceptFiles(); //for drag/drop support What if I have a dialog-based app? Since I don't have the doc-view framework, AddDocTemplate() doesn't work. Thanks! Learning OpenGL Nnamdi Onyeyiri7-Jun-02 0:35 Nnamdi Onyeyiri 7-Jun-02 0:35  Does anyone know of any website that contain tutorials for a beginner to learn opengl? ================================================== Homepage: www.onyeyiri.co.uk Email: theeclypse@hotmail.com "I think Microsoft has invented A.I. My computer has a mind of its own!" Re: Learning OpenGL Rage7-Jun-02 0:54 Rage 7-Jun-02 0:54  Try www.codeproject.com in the tutorial area ~RaGE(); Re: Learning OpenGL Mazdak7-Jun-02 0:53 Mazdak 7-Jun-02 0:53  http://nehe.gamedev.net/ Mazy "The more I search, the more my need For you, The more I bless, the more I bleed For you."The Outlaw Torn-Metallica Re: Learning OpenGL Justin Somerville7-Jun-02 1:52 Justin Somerville 7-Jun-02 1:52  www.gametutorials.com. Re: Learning OpenGL Mike Nordell7-Jun-02 1:46 Mike Nordell 7-Jun-02 1:46  And, of course, the beginners coding forum at opengl.org. Re: Learning OpenGL KaЯl7-Jun-02 2:06 KaЯl 7-Jun-02 2:06  You may find also good tips on this one http://www.sjbaker.org/steve/omniv/index.html HTH, CBitmap query Nish Nishant7-Jun-02 0:32 Nish Nishant 7-Jun-02 0:32  Hello I have a CBitmap object. It's a member of a class. The user can call a function to load a bitmap into this CBitmap object. Now I have another function where I use the CBitmap object. Here I would not know whether the user has actually loaded the bitmap or not. So can I use this code to check if the CBitmap object has a valid bitmap in it? if(!m_bitmap.m_hObject) MessageBox("No bitmap found"); Author of the romantic comedy Summer Love and Some more Cricket [New Win] Buy it, read it and admire me Re: CBitmap query Roger Allen7-Jun-02 0:37 Roger Allen 7-Jun-02 0:37  That code looks fine Nish. Roger Allen Sonork 100.10016 If I had a quote, it would be a very good one. Re: CBitmap query Nish Nishant7-Jun-02 0:45 Nish Nishant 7-Jun-02 0:45  Roger Allen wrote: That code looks fine Nish. Thanks Riga, I am totally new at all this GDI stuff But after converting that MSP thing to BMP this week, I am suddenly interested in GDI Nish p.s. GDI coding is highly leak-prone I think, for newbies anyway! Author of the romantic comedy Summer Love and Some more Cricket [New Win] Buy it, read it and admire me Re: CBitmap query Roger Allen7-Jun-02 1:26 Roger Allen 7-Jun-02 1:26  Here is an artical which you may find useful on the subject: http://www.codeproject.com/gdi/csavedc.asp If you havn't read it already. Roger Allen Sonork 100.10016 If I had a quote, it would be a very good one. dxdiag benjymous6-Jun-02 23:54 benjymous 6-Jun-02 23:54  Does anyone know if it's possible to make dxdiag (the directx diagnostics tool), to lauch silently and dump its output to a given file (i.e. from the command line) This is so that I can make an app automatically dump the system info of our users machines onto a network drive, which would simplify many support problems greatly (as many things have been down to not having the right graphics / directx version or having an old rubbish graphics card) [I know I can ask them to manually run dxdiag and mail me the results, but I prefer something that is totally transparent, and would allow me to check the details the moment I'm told of a problem] -- Help me! I'm turning into a grapefruit! How do i link a *.exe library? JAAC16-Jun-02 23:36 JAAC1 6-Jun-02 23:36  I need link the user.exe library with visual c++, I have attempt it with the LoadLibrary but it doesn´t work. I have found another function that it is LoadLibraryEx but I´m not sure that it work.This library is to use the serial port. Thanks in advance. Please, I need help ¡¡Cuñaaaooo!! Re: How do i link a *.exe library? Nish Nishant7-Jun-02 0:35 Nish Nishant 7-Jun-02 0:35  user.exe? Or do you mean user32.dll? I have this vague remembrance that user.exe is a leftover from the 16 bit days. I reckon you should be using user32.dll. For that you can link with user32.lib Nish Author of the romantic comedy Summer Love and Some more Cricket [New Win] Buy it, read it and admire me Problem on using unicode Abin6-Jun-02 22:51 Abin 6-Jun-02 22:51  Whenever I put "#define _UNICODE" in my project I get linker error: msvcrtd.lib(crtexew.obj) : error LNK2001: unresolved external symbol _WinMain@16 Debug/strtest.exe : fatal error LNK1120: 1 unresolved externals Error executing link.exe. Any help appreciated. Re: Problem on using unicode Nish Nishant7-Jun-02 0:37 Nish Nishant 7-Jun-02 0:37  When you installed VC++, did you install the UNICODE libraries as well? Nish Author of the romantic comedy Summer Love and Some more Cricket [New Win] Buy it, read it and admire me

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