C / C++ / MFC

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PostMessage and MSG handler Jon Marcus23-Jul-01 12:52 Jon Marcus 23-Jul-01 12:52  I have a regular DLL using MFC and within this DLL is a worker thread. While this thread is running, it is trying to update a dialog box (owned by the DLL) with some information on the thread's progress. Everything works OK except that the WPARAM and LPARAM values I pass to the dialog are not getting through, and are always zero. Is there some special reason for this? Re: PostMessage and MSG handler Tomasz Sowinski24-Jul-01 1:16 Tomasz Sowinski 24-Jul-01 1:16  While this thread is running, it is trying to update a dialog box (owned by the DLL) with some information on the thread's progress. Can you post the code running in worker thread that updates the dialog? Tomasz Sowinski -- http://www.shooltz.com Re: PostMessage and MSG handler Jon Marcus24-Jul-01 12:06 Jon Marcus 24-Jul-01 12:06  thanks, but I didcovered a much simpler way to do this, which works well. CPropertySheet in wizard mode Jon Sagara23-Jul-01 11:23 Jon Sagara 23-Jul-01 11:23  Is is possible to disable the Cancel button, or to get rid of it? I tried to GetDlgItem(IDCANCEL)->EnableWindow(FALSE), but the program asserted. Thanks, Jon Sagara "Go Banana!" -- Ralph Wiggum Re: CPropertySheet in wizard mode Paolo Messina23-Jul-01 12:27 Paolo Messina 23-Jul-01 12:27  Are you calling it in your sheet's OnInitDialog? Or where? And what code asserts? ASSERT(::IsWindow(m_hWnd)) ? Re: CPropertySheet in wizard mode Jon Sagara23-Jul-01 12:40 Jon Sagara 23-Jul-01 12:40  Paolo, Thanks for the response. Your question triggered my brain, and I figured it out. Here is the correct (or working, anyway) code: pSheet->GetDlgItem(IDCANCEL)->EnableWindow(FALSE); Thanks again, Jon Sagara "Go Banana!" -- Ralph Wiggum Blinking label. John Uhlenbrock23-Jul-01 11:06 John Uhlenbrock 23-Jul-01 11:06  I need one I want need some text to blink on a dialog.... You know, like a dialog that pops up and the word DOWNLOADING blinks until the download is complete.... Any ideas? - John Re: Blinking label. Christian Graus23-Jul-01 12:15 Christian Graus 23-Jul-01 12:15  Set up a timer and call ShowWindow(SW_SHOW/SW_HIDE) on alternate calls. I'd override the static control and make it nice and internal. Then you can use it over and over. Christian #include "std_disclaimer.h" The careful application of terror is also a form of communication. Eagles may soar, but weasels don't get sucked into jet engines. Re: Blinking label. John Uhlenbrock24-Jul-01 7:12 John Uhlenbrock 24-Jul-01 7:12  I'm not quite sure how I should do this. I need it to blink, while the the rest of the application keeps running...which means I need to have a seperate thread for the blinklabel? Re: Blinking label. Christian Graus24-Jul-01 10:46 Christian Graus 24-Jul-01 10:46  Not at all. Have you not used WM_TIMER before ? There is a tutorla here on how it's done, but the essence of it is on startup: SetTImer(42,1000,NULL); in OnTimer if (nIDEvent==42) // I may have the variable name wrong ;0) { m_bFlash = !m_bFlash; // You need to create this m_MyStatic.ShowWindow(m_bFlash ? SW_SHOW : SW_HIDE); } Christian #include "std_disclaimer.h" The careful application of terror is also a form of communication. Eagles may soar, but weasels don't get sucked into jet engines. Why my four radio buttons show up but no text next to them? tm23-Jul-01 10:39 tm 23-Jul-01 10:39  I am creating these four radio buttons dynamically. The behavior is so random and confusing. At some point I got some text, and then I can't get it anymore. I have been told by friends at this forum that maybe the width is not enough, one time that fixed the problem but not anymore!!!!!!! Here is the code: if (OneGrpPosition != NULL) { pConfig->m_OneRadioBtn = (CRadioBtn *) (((CGrpBox*)pConfig->m_OneGrpBox)->m_GrpRadioBtn).GetNext(OneGrpPosition); int len= ctrlRect.right - ctrlRect.left; ctrlRect.right = ctrlRect.left +len+ 60; if (ctrlRect.right >= 542) ::MessageBox(0, "Running out of screen width to display radio button", "Warning", MB_OK); ctrlRect.bottom = ctrlRect.top + 25; if (nDex == 0) // { m_RadioButtonArray[nDex].Create((pConfig->m_OneRadioBtn)->m_RadioLabel, WS_GROUP | WS_CHILD | WS_VISIBLE | BS_AUTORADIOBUTTON, ctrlRect,this, (pConfig->m_OneRadioBtn)->m_RadioGuiID ); m_RadioButtonArray[nDex].SetFont(&m_font, TRUE); } else { m_RadioButtonArray[nDex].Create((pConfig->m_OneRadioBtn)->m_RadioLabel,WS_CHILD| WS_VISIBLE | BS_AUTORADIOBUTTON, ctrlRect,this,(pConfig->m_OneRadioBtn)->m_RadioGuiID); m_RadioButtonArray[nDex].SetFont(&m_font, TRUE); } nDex= nDex+1; ctrlRect.left = ctrlRect.right +10; //This radio button has already been added to the memory structure } } //This ia a new radio button that needs to be added to the memory structure } I am in Paradise. Voltaire Re: Why my four radio buttons show up but no text next to them? Paolo Messina23-Jul-01 12:24 Paolo Messina 23-Jul-01 12:24  what value is ctrlRect initialized with? Re: Why my four radio buttons show up but no text next to them? tm23-Jul-01 12:32 tm 23-Jul-01 12:32  top=35 bottom=60 L=120 R=220 I have tried L=120 and Right = 170 through 220. It is really confusing. Thanks for your time I am in Paradise. Voltaire Re: Why my four radio buttons show up but no text next to them? Paolo Messina23-Jul-01 12:37 Paolo Messina 23-Jul-01 12:37  Are you sure the radio buttons gets created? Can you see the dot? the if clause in your code is doing the same for both conditions... why? Re: Why my four radio buttons show up but no text next to them? 23-Jul-01 14:53 23-Jul-01 14:53  Yes, I see all my four radio buttons are being created. The first one is different from the other three, because I need to have them in a group. Meaning if I click on of them the other three are unselected. I do see the four of them being created. But no text next to them. I am thinking of just creating the first one to see if the text displays there. It is a weird one. I really am looking forward to solve this one!! Thanks again for your time. Re: Why my four radio buttons show up but no text next to them? Paolo Messina24-Jul-01 3:41 Paolo Messina 24-Jul-01 3:41  It's very weird, but to my experiece this kind of bugs are really stupid. Did you tried to use a hard-coded CRect for the creation, just to make sure it's not something else? However, if you would send me a small demo project, I'll give it a look. I hate this kind of bugs! Paolo. Monitoring Clipboard 23-Jul-01 9:56 23-Jul-01 9:56  Hi, Is there a way that I can monitor all the operations in the clipboard(Copy/Cut - that happens on any application) and get notifications. Thanks, Ganesh.M.Ramaswamy Ganesh.M.Ramaswamy Re: Monitoring Clipboard Michael Dunn23-Jul-01 10:28 Michael Dunn 23-Jul-01 10:28  See my article ClipSpy for an app that monitors the clipboard. --Mike-- http://home.inreach.com/mdunn/ "Make sure that if you are using a blow torch that you don't set anything on fire."   -- Chris Maunder Initial Update in CDialog 23-Jul-01 9:12 23-Jul-01 9:12  I have a progress bar in a CDialog and I want to step it as soon as the dialog becomes visible. I can't do that in InitDialog, because the dialog is not visible yet. Where would I do that? Thank You XP Re: Initial Update in CDialog Chris Losinger23-Jul-01 9:24 Chris Losinger 23-Jul-01 9:24  how about OnShowWindow ? -c ------------------------------ Smaller Animals Software, Inc. http://www.smalleranimals.com A simple question... 23-Jul-01 9:11 23-Jul-01 9:11  I've begun to learn VC (MFC) few days ago. i want to make something using the "ExtractIcon()" function. the first paramter of this function (as written in MSDN) is a handle to instance of the application. How the hell do i get this handle? what should i send him as this first parameter? thanks a lot RG Re: A simple question... Chris Losinger23-Jul-01 9:23 Chris Losinger 23-Jul-01 9:23  Call AfxGetInstanceHandle -c ------------------------------ Smaller Animals Software, Inc. http://www.smalleranimals.com I've tried it but... 23-Jul-01 12:35 23-Jul-01 12:35  look at this code: ... HICON icon = ExtractAssociatedIcon(AfxGetInstanceHandle() , "D:\\file.fp", 0); ASERT(icon==NULL) static.Create(NULL, WS_CHILD|WS_VISIBLE|SS_ICON|SS_CENTERIMAGE, CRect(10,10,150,50), this); static.SetIcon(icon); ... static is CStatic variable. i dont know why, but this code causes an error, the windows error message: "illigal operation" appears. and it happens only after i use this function.... have any ideas? thanks RG Re: I've tried it but... Paolo Messina23-Jul-01 12:45 Paolo Messina 23-Jul-01 12:45  Do you mean ASSERT(icon != NULL) ? Re: I've tried it but... Andrew Peace23-Jul-01 13:05 Andrew Peace 23-Jul-01 13:05  As above about ASSERT; ASSERT(icon != NULL); And also, the icon variable has to be present for the lifetime of the static control - thus you must put it as a member variable of the class, or as a global variable. > Andrew.

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