C / C++ / MFC

FirstPrevNext

Re: disabled menu item at start Roger Allen5-Jul-02 4:08 Roger Allen 5-Jul-02 4:08  No the constructor does not. MFC periodically calls the UI handlers for toolbar buttons and menu items when in the idle state, or when a menu is about to be shown. Roger Allen Sonork 100.10016 If I had a quote, it would be a very good one. Re: disabled menu item at start Fredrik Skog5-Jul-02 4:12 Fredrik Skog 5-Jul-02 4:12  If you have a look at the message map you'll see something like this: BEGIN_MESSAGE_MAP(CMainFrame, CFrameWnd) //{{AFX_MSG_MAP(CMainFrame) ON_UPDATE_COMMAND_UI(ID_INDICATOR_YOURFUNC, OnUpdateYourFunc) //}}AFX_MSG_MAP END_MESSAGE_MAP() There is a lot of stuff taken care of for you, so you don't see everything that is going on behind the curtains. Cheers, Fredrik <right>Sonork ID: 100.11430:PhatBoy 'It is so much simpler to bury reality than it is to dispose of dreams.' - Don Delillo, Americana Re: disabled menu item at start Mike Upton5-Jul-02 4:54 Mike Upton 5-Jul-02 4:54  ns wrote: I also see now that an uninitialized BOOL is TRUE by default. No it's not. An uninitialised BOOL, or an uninitialised anything else, is undefined. An uninitialised variable will have an indeterminate value - you can't rely on it. I believe that in debug builds the compiler will assign special guard values (which are non-zero, and hence considered to be 'true') as soon as it allocates memory (i.e. before you initialise it), but that's only the case for debug builds and you should never rely on it anyway. "We are the knights who say Ni" (The Knights Who Say Ni) MDI doc sending info to modal dlg -how to? ns5-Jul-02 3:24 ns 5-Jul-02 3:24  Well, in the modeless dialog spawned by my docs menu, I have access to a customizable Create function so I can send over info to the dlg window - like doc members etc(theoretically - am going to try it) How do I give the modal dlg a doc member value? I cant get the pDOc pointer and access it that way, or can I ? I suspect not since its not a view thats making the pointer (only place I've seen pDoc->GetMember() type stuff. Is it true that you can call this from any class where you instantiate the pointer, or only from the view, since its the only one who knows which doc to get the pointer to, and GetDocument is a View function. Thank you, ns Re: MDI doc sending info to modal dlg -how to? Mike Upton5-Jul-02 4:59 Mike Upton 5-Jul-02 4:59  Any particular reason you can't pass a pointer to the document to the Create function? Or, for that matter, to the constructor? Then you can store the document pointer in your dialog, and Bob, as they say, is your green alien-like Uncle. "We are the knights who say Ni" (The Knights Who Say Ni) Re: MDI doc sending info to modal dlg -how to? nsns5-Jul-02 16:24 nsns 5-Jul-02 16:24  Well, The way I've seen it, modeless dlgs get created with Create, but modal is just CMyDialog dlg; dlg->DoModal(); So theres no create function that I can see invoked for it. I'm new at this stuff so I can only base my info on stuff I see in books etc. Where d oes create() come in for a modaldlg? Thanks, and sorry if I seem clueless.... ns I get the pass in constructor idea....thanks! nsns5-Jul-02 16:26 nsns 5-Jul-02 16:26  I reread your response and think I can do what you say - sending it in via a constructor,. So sorry to be so hasty in my first reply (though I still dont see the Create conection) Re: I get the pass in constructor idea....thanks! Mike Upton7-Jul-02 22:28 Mike Upton 7-Jul-02 22:28  Apologies - I slightly misread your first message, and thought you were talking about modeless dialogs all the way through, not just in the first paragraph. You're right, Create() isn't used for modal dialogs. "We are the knights who say Ni" (The Knights Who Say Ni) problem with CRectTracker sanskypotov5-Jul-02 3:11 sanskypotov 5-Jul-02 3:11  Hi I am using the CRectTracker to drag controls around, there are examples available also here on the site. I face a problem, that when 2 controls overlap each other and if they are selected( in other words they are showing the tracker) then the CRectTracker get hidden in the overlapping place. Please can someone tell me the solution on how to overcome this. Thanks, Sansky John 3:16 For God so loved the world, that he gave his only begotten Son ( Jesus Christ ) , that whosoever believeth in him should not perish, but have everlasting life. Searching for SIMPLE compress Routine Koep5-Jul-02 2:49 Koep 5-Jul-02 2:49  Hello, i'm looking for a compress / uncompress Routine, which is not Part of a 5MB Lib with 300 Header Files. Has anybody a RLE Routine or similar stuff ? I've tried cryptlib.lib, but i don't need the entire Magic Code Stuff in GZIP Lib's. Thanxs ! Marco Re: Searching for SIMPLE compress Routine Martin Ziacek5-Jul-02 5:22 Martin Ziacek 5-Jul-02 5:22  Try this. Re: Searching for SIMPLE compress Routine Chris Losinger5-Jul-02 6:14 Chris Losinger 5-Jul-02 6:14  have you tried zLib by itself (without the crypto++ wrapper) ? it's only 20 files or so, compiles to a very small static lib, is very easy to use, is totally free, etc.. i use it in a bunch of places. -c Being just contaminates the void.   --Robyn Hitchcock Image Processing - easy, like Sunday morning. How to find out if the program was started from a command line or not. Janine5-Jul-02 2:36 Janine 5-Jul-02 2:36  I need to know how a program was started; by clicking an image or from a command line. How do I get this information? The starting point of this program is main(). -Janetta Re: How to find out if the program was started from a command line or not. adara5-Jul-02 2:58 adara 5-Jul-02 2:58  You need to know who is the parend process (cmd.exe or explorer.exe), look for undocument function ntQueryInformationProcess in ntdll.dll SetClipboardViewer 5-Jul-02 2:22 5-Jul-02 2:22  My app crash on SetClipboardViewer in release mode but not in debug mode, i call to SetClipboardViewer in OnInitDialog(). any ideas?? thanx Questions about MFC DLL with resources 5-Jul-02 1:40 5-Jul-02 1:40  I have some troubles with MFC DLLs that contain resources. First of all, I would like to know which MFC DLL project I have to choose exactly (Regular DLL or MFC extension DLL). And what about their differences ? My problem is : when I have a resource (for example a Dialog) in my DLL which has the same Res ID that an another resource in my EXE, and when I want to show one of the two, I may have the other being displayed (because of the same ID). So currently I must compare the 2 "resources.h" to not have similar IDs which is not a great solution to my problem. Please help me ! jpeg SetWindowText works but disappears -Dy5-Jul-02 0:58 -Dy 5-Jul-02 0:58  I've got a MDI MFC app (without doc/view), with a CChildFrame and CChildView. I use SetWindowText to set the MDI child's title's, which works fine until I open a second MDI child, which then has its title set (correctly), but the first title is blanked out. If I toggle between the two of them they (the window titles) both disappear. Whilst trying to figure out what I screwed up I used SetWindowText in CChildFrame::OnSetFocus and I can see the title being set but it then disappears straight away. Does anyone know what I've done wrong, or what I need to handle to get my MDI children to keep their titles? Dylan Kenneally London, UK Re: SetWindowText works but disappears Neville Franks5-Jul-02 23:10 Neville Franks 5-Jul-02 23:10  Dylan, you need to override CChildFrame::OnUpdateFrameTitle() and do your own thing there without calling the base class OnUpdateFrameTitle(). This is what I do in ED (see sig). I also use my own CMainFrame::OnUpdateFrameTitle(). Neville Franks, Author of ED for Windows. www.getsoft.com Unicode beat up my __argv stuff Jason Hooper4-Jul-02 23:20 Jason Hooper 4-Jul-02 23:20  Before, this worked fine: CString programFilespec(__argv[0]); Now (I think it's because I'm doing my app with Unicode support), it's crashing and telling me to send an error report to MS (I have XP). Any ideas on what I'm doing wrong? I still don't know too much about Unicodifying apps. Thanks. - Jason (SonorkID 100.611) In the beginning, teachers taught the 5 W's: who, what, where, when, why. Now it's just a big damn G Re: Unicode beat up my __argv stuff Prem Kumar5-Jul-02 0:21 Prem Kumar 5-Jul-02 0:21  Use GetCommandLine to get the Command line and then parse it. Re: Unicode beat up my __argv stuff Michael Dunn5-Jul-02 8:23 Michael Dunn 5-Jul-02 8:23  Where is the crash? While I would expect that to still work (CString has constructors for both ANSI and unicode strings), try it with __targv instead which'll expand to __argv or __wargv as appropriate. --Mike-- Just released - RightClick-Encrypt v1.3 - Adds fast & easy file encryption to Explorer My really out-of-date homepage Sonork-100.19012 Acid_Helm Set Runtime Option problem chen4-Jul-02 23:16 chen 4-Jul-02 23:16  Hi, Wherte can i set the "Add/GR (Enable RTTI) compiler option" in order to get correctly compiler? Thanks in advance! chen Re: Set Runtime Option problem Mike Upton5-Jul-02 0:48 Mike Upton 5-Jul-02 0:48  Oh good, an easy one for my first ever post Or at least, it's easy if you're using Visual Studio 6. Project Settings -> C/C++ tab -> Category: C++ Language -> Enable Run-Time Type Information (RTTI) check box Hope that helps (and is correct!). I'll be a tad if it isn't! "We are the knights who say Ni" (The Knights Who Say Ni) Re: Set Runtime Option problem CaesarCZ5-Jul-02 7:21 CaesarCZ 5-Jul-02 7:21  For MSVS this should be Project->Setting->C/C++ tab->General there is a Project Options editbox, fill the switch there or instead of General, choose C/C++ Language, and there chceck the Enable Run-time.... checkbox hope this helps Re: Set Runtime Option problem chen5-Jul-02 14:22 chen 5-Jul-02 14:22  Thanks to Mike and CaesarCZ! It worked! Best Regards, chen

Last Visit: 31-Dec-99 18:00     Last Update: 19-Jun-24 2:56 Refresh ᐊ Prev1...16637166381663916640166411664216643166441664516646 Next ᐅ

General    News    Suggestion    Question    Bug    Answer    Joke    Praise    Rant    Admin   

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.