C / C++ / MFC

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Looking for a "Variable Watch" control auroch24-Sep-02 5:07 auroch 24-Sep-02 5:07  Hi ! I'm looking for a custom control to provide a "variable watch" like control. You can find such controls in every environments such as Visual C++ ... It allows you to display the name and the value of variable selected by the user : myVariable1 ....................... 0x12485 myVariable2 ....................... 48725 myVariable3 ....................... 1001100 myVariable4 ....................... 0x20 0x42 Does anyone knows where to fing such a control ??? Thanks, Vince Re: Looking for a "Variable Watch" control Roger Allen24-Sep-02 6:54 Roger Allen 24-Sep-02 6:54  THis sounds like the watch window (alt+3 in debug mode) Roger Allen Sonork 100.10016 I think I need a new quote, I am on the prowl, so look out for a soft cute furry looking animal, which is really a Hippo in disguise. Its probably me. Re: Looking for a "Variable Watch" control Anonymous24-Sep-02 7:01 Anonymous 24-Sep-02 7:01  Sure !!! What i'm looking for is not where to find the watch window of Vc++ !!! I'm looking for a class witch wrap functions of a watch window in order to be integrated in my own application (something like a Cwnd derivated class...) Re: Looking for a "Variable Watch" control Pavel Klocek24-Sep-02 11:30 Pavel Klocek 24-Sep-02 11:30  I know only about commercial libraries Extreme Toolkit[^] or BCGControlBar[^]. Pavel Sonork 100.15206 DateTimePicker and CListCtrl RK_200024-Sep-02 4:55 RK_2000 24-Sep-02 4:55  Is there any Date Time pickers that would allow you to modify both data and time within the same cell? Re: DateTimePicker and CListCtrl Pavel Klocek24-Sep-02 11:34 Pavel Klocek 24-Sep-02 11:34  Try this[^] (ActiveX). Pavel Sonork 100.15206 ReleaseDispatch ns24-Sep-02 4:47 ns 24-Sep-02 4:47  I have p.CreateDispatch("DllwithForm.Class1"); // AfxMessageBox("pbar"); p.CheckingPB(hPbWnd,0,100000); //p.ReleaseDispatch(); where CheckingPB is triggering repeated messages to be sent to a control. If I uncomment the release dispatch , I am concerned that it will release the dispatch before all my messages have been sent and received. Is this a fact? Since the app isnt working anyways I cant check it out, but wondered if its disastrous if that line is commented out... Thanks, ns COLEDATETIME and FILETIME. Kevin Gutteridge24-Sep-02 4:07 Kevin Gutteridge 24-Sep-02 4:07  Help people, my head is spinning..... I have an application that reads images back from a database into a directory. I need to 'touch' the file time stamp to match the database. The date field to retrieved as a COLEDATETIME and I need to convert this to a FILETIME in order to call the win32 SetFileTime() function. Anyone any idea's how to perform this conversion (I'm sure is really obvious and the constructor for COLEDATATIME lets you do it the other way around!) --- Anyone any clues? Re: COLEDATETIME and FILETIME. Tomasz Sowinski24-Sep-02 4:13 Tomasz Sowinski 24-Sep-02 4:13  Use COleDateTime::GetAsSystemTime, then ::SystemTimeToFileTime. Tomasz Sowinski -- http://www.shooltz.com *** Vodka. Connecting people. *** Re: COLEDATETIME and FILETIME. Kevin Gutteridge25-Sep-02 3:46 Kevin Gutteridge 25-Sep-02 3:46  That works a treat! Many Thanks. Kevin. Registry setting krk24-Sep-02 3:56 krk 24-Sep-02 3:56  I want to add an entry to the registry that all users on the machine inherits. Is this possible? Re: Registry setting jhwurmbach24-Sep-02 4:08 jhwurmbach 24-Sep-02 4:08  HKLM is your key. CreateDIBSection pépé24-Sep-02 3:47 pépé 24-Sep-02 3:47  hello, Is it possible to have CreateDIBSection to allocate the bitmap in system memory rather than in video memory (without DDraw) ? Re: CreateDIBSection Tomasz Sowinski24-Sep-02 3:56 Tomasz Sowinski 24-Sep-02 3:56  CreateDIBSection allocates bitmap data in 'system' memory, not in video memory. Tomasz Sowinski -- http://www.shooltz.com *** Vodka. Connecting people. *** Re: CreateDIBSection pépé24-Sep-02 4:07 pépé 24-Sep-02 4:07  The fourth parameter of CreateDIBSection (VOID **ppvBits) gives me values over 0x80000000, is it still system memory ? Re: CreateDIBSection Tomasz Sowinski24-Sep-02 4:14 Tomasz Sowinski 24-Sep-02 4:14  What's wrong with 0x80000000? Tomasz Sowinski -- http://www.shooltz.com *** Vodka. Connecting people. *** Re: CreateDIBSection pépé24-Sep-02 4:32 pépé 24-Sep-02 4:32  It's just because I make memory access and they seem to be slow. Never mind, I'll do more tests. Thanks. deleting strings Zizilamoroso24-Sep-02 3:42 Zizilamoroso 24-Sep-02 3:42  We delete an array of char this way: delete[] str;<br /> str=NULL But, if the string is created like str=_T("test"); or #define str _T("test"), trying to delete it results in an exception. Now, my question is this: how can I figure out if the string is deletable or not? (must be a const prob) I know I should strcpy those strings before use, but lazy me... [VISUAL STUDIO 6.0] [MFC] [WIN98/2] Re: deleting strings Tomasz Sowinski24-Sep-02 3:54 Tomasz Sowinski 24-Sep-02 3:54  There's no portable way of determining if object is on the heap or not. Switch to std::string or CString and forget about it. Tomasz Sowinski -- http://www.shooltz.com *** Vodka. Connecting people. *** Re: deleting strings John Burton24-Sep-02 3:54 John Burton 24-Sep-02 3:54  You can't. Well, not without keeping some extra information anywhere. Really this is a design problem, not an implementation problem - it's good practice to allocate and free memory at the same level of a program, so that level already knows how it allocated the memory. For example char* str = new char[100]; somefunction(str); delete[] str; char* str = "Hello world"; somefunction(str); // No need to delete anything The point is that "somefunction" didn't allocate the memory so it can't know how to free it and shouldn't try. Basically whenever you allocate some memory you need to think about how it's going to be freed, and ensure that it's done at the same level as it was allocated, which is probably the only place that knows how to do it. Re: deleting strings Le centriste24-Sep-02 6:50 Le centriste 24-Sep-02 6:50  You may want to try with IsBadWritePtr. Do some experimentations with it to see how it handles strings (literal and dynamically-allocated strings). Michel It is a lovely language, but it takes a very long time to say anything in it, because we do not say anything in it, unless it is worth taking a very long time to say, and to listen to. - TreeBeard Re: deleting strings Andreas Saurwein24-Sep-02 6:51 Andreas Saurwein 24-Sep-02 6:51  Or, just try{ delete[] str; } catch(...){} ...make it about Visual C++, and don't ever mention Visual Basic. Nick Hodapp (MSFT) in Semicolon[^] Re: deleting strings Zizilamoroso24-Sep-02 13:03 Zizilamoroso 24-Sep-02 13:03  I used to code java like that! Does it work for c++ too? [VISUAL STUDIO 6.0] [MFC] [WIN98/2] Re: deleting strings Todd Smith24-Sep-02 7:13 Todd Smith 24-Sep-02 7:13  Try const LPCSTR str = _T("test"); and when the compiler complains about const do as it says. Don't cast the const away Todd Smith printing content in the specified position on document to printer vgkotha24-Sep-02 3:40 vgkotha 24-Sep-02 3:40  I want to print a page which has predefined area, so that the printer prints the content which is in the defined area.Say for example, a document usually has 32x13 inches ruler. we predefine the size to 8x11 inches area of the document. we actually need to print the content of the 8x11 inches? any help will be greatly appreciated. i desperately need this info. please send reply to vgkotha@rediffmail.com thanks in advance, from venu:confused

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