C / C++ / MFC

FirstPrevNext

Re: Dynamic popup menu mark novak27-Jul-05 2:13 mark novak 27-Jul-05 2:13  TrackPopupMenu() blocks until they select something or it loses focus and goes away so you can call DestroyMenu() right after TrackPopupMenu(). String Converstions tomek1826-Jul-05 2:59 tomek18 26-Jul-05 2:59  here is my code: <br /> void CChildView::SortData(LPCTSTR pszData)<br /> <br /> ofstream testFile ("test.txt", ios::app);<br /> testFile << pszData;<br /> The Problem is that it saves the pointer address, 0x00421DA8 and what I want it to do is save the character that is recieved by pszData. How do I do that? Thanks, Re: String Converstions mark novak26-Jul-05 3:02 mark novak 26-Jul-05 3:02  pszData is a pointer, you must dereference it to use it's contents. testFile << *pszData; Re: String Converstions tomek1826-Jul-05 3:10 tomek18 26-Jul-05 3:10  I have tried using *pszData. But when I use that, it gives me numbers, a being 97, b 98, c 99, and so on... pszData is Unicode, I believe. I don't realy understand the string converstions. Re: String Converstions mark novak26-Jul-05 3:24 mark novak 26-Jul-05 3:24  Looks like you have a Unicode string coming in which is trying to be treated as an Ansi string. Do you have UNICODE defined? Re: String Converstions tomek1826-Jul-05 3:18 tomek18 26-Jul-05 3:18  The Value that it saves from *pszData is the Decimal value of the character that is passed on! According to the ASCII table. Why does it do that? and how can I make it save the character value? Thanks... Re: String Converstions tomek1826-Jul-05 3:43 tomek18 26-Jul-05 3:43  I have: #ifdef _UNICODE That should be enough? or should I add more to it? I don't understand this string converstion business too much, even so I have read lot's of articles on it... Re: String Converstions mark novak26-Jul-05 4:04 mark novak 26-Jul-05 4:04  A project under Visual C++ can be under many configurations. You have console or win32 application, MFC or ATL or both, etc. You control these configurations by defining values. A unicode project is controlled by the macros _UNICODE and UNICODE. The #ifdef _UNICODE is a preprocessor directive. Like an if, but at a preprocessor level which means if it's not true (evaluated at compile time) the code won't be included in the executable. Try adding #define _UNICODE #define UNICODE to the top of your stdafx.h before you include all the headers, or set them in the project settings under preprocessor definitions. Now your project will be unicode aware. For instance a possible problem in your case is passing an argument as a LPCTSTR, which under an ansi project (_UNICODE & UNICODE not defined) is a pointer to an ansi string. In a unicode project it's a unicode string. Re: String Converstions tomek1826-Jul-05 4:17 tomek18 26-Jul-05 4:17  I have added the following lines Mark Petrik Sosa wrote: #define _UNICODE #define UNICODE to the main.cpp file, don't work. and to stdafx.h file and don't work. The result is still the same. What do you think about converting the pszData into another variable such as buffer that is a wide string for example? I have tried it, but I can't get it to work. Re: String Converstions mark novak26-Jul-05 4:25 mark novak 26-Jul-05 4:25  Try changing ofstream to wofstream. void CChildView::SortData(LPCTSTR pszData)<br /> <br /> wofstream testFile ("test.txt", ios::app);<br /> testFile << pszData; Re: String Converstions Tim Smith26-Jul-05 3:30 Tim Smith 26-Jul-05 3:30  testFile << std::string (pszData); This will work, but I doubt it is the best way of doing it. I'm not a fan of iostreams (slow and bloated), so I don't have the depth of knowledge that others will have. Tim Smith I'm going to patent thought. I have yet to see any prior art. Re: String Converstions tomek1826-Jul-05 4:19 tomek18 26-Jul-05 4:19  I have tried Tim Smith wrote: File << std::string (pszData); but it comes up with 2 errors: std - is not a class or namespace name string - undeclared identifier Re: String Converstions mark novak26-Jul-05 4:28 mark novak 26-Jul-05 4:28  You need to include <string> to use the string class. XML parsing in C++ 72arpita26-Jul-05 2:53 72arpita 26-Jul-05 2:53  Hello, suppose i get an argument which gives me a string where the element is stored eg (root) (child)(grandchild)then how do i parse the xml file to travel to that particular node and then add the value of the attributes of grandchild to an array and return it thanks Re: XML parsing in C++ David Crow26-Jul-05 2:59 David Crow 26-Jul-05 2:59  72arpita wrote: how do i parse the xml file... Use the IXMLDocument interface. "Ideas are a dime a dozen. People who put them into action are priceless." - Unknown How to draw a rectangle in CRichEditCtrl Ahmed Kabir26-Jul-05 2:33 Ahmed Kabir 26-Jul-05 2:33  Hi, I want to draw a rectangle in a Rich Edit Text control (CRichEditCtrl) which is embedded on a Tab Control. I am using CFormView (form as my container to place all my controls TabCtrl, RichEditCtrl, etc.) I need to get the correct Device Context to do the drawing in my CFormView::OnDraw(CDC* pDC) method. Can someone help me out? Thanks in advance, Ahmed Kabir Re: How to draw a rectangle in CRichEditCtrl mark novak26-Jul-05 3:06 mark novak 26-Jul-05 3:06  Perhaps you want to subclass your CRichEditCtrl and override OnPaint() interpreter needed Jerome Conus26-Jul-05 2:25 Jerome Conus 26-Jul-05 2:25  Hi ! My C++ app needs to read an external text file and display it on screen. But, this text file can contain specific commands to change what has to be displayed by my app. For instance, the text file could be : Hello [if foo] Foo [else] Bar [endif] and my app should display (depending of foo) : Hello Foo. The problem is that I don't know where to start. Should I just parse the text file and just check each [] ? Should I write a real interpreter (I have no idea how to do this). Can I reuse something existing ? Any help, suggestions or idea are welcome ! THanks ! Jerome Re: interpreter needed mark novak26-Jul-05 3:01 mark novak 26-Jul-05 3:01  Depends how hardcore you want to get. If it's simple you could get away with just parsing and using a simple hash table for your variables. Either way you'll want to take a look at these http://www.codeproject.com/cpp/crafting_interpreter_p1.asp[^] http://www.codeproject.com/cpp/crafting_interpreter_p2.asp[^] How to add a Bitmap image for background of titlebar Member 208926526-Jul-05 2:00 Member 2089265 26-Jul-05 2:00  Hi, I'm working on an SDI application using MFC. I'd like to change the background of titlebar and toolbar by adding a small bitmap image which looks like a short vertical line. I found some source codes to change background color of titlebar. But I don't know how to change the background of titlebar by a bitmap image. Please let me know how to add the bitmap image as a background. Re: How to add a Bitmap image for background of titlebar mark novak26-Jul-05 2:48 mark novak 26-Jul-05 2:48  Look into WM_NCPAINT, LoadImage and BitBlt. problem displaying bitmap Arrun26-Jul-05 1:39 Arrun 26-Jul-05 1:39  Hi I am doing a project on image processing with VC++. When I try to display the bitmap(8 bit) on the screen using SetDIBitsToDevice() the actual color is not mapped correctly. The same code works fine with 24 bits bitmap. Pls help Thanks in advance Windows Spy ddmcr26-Jul-05 0:44 ddmcr 26-Jul-05 0:44  Hi guys, I am writing a simple Windows Spy untility (like in VStudio tools), I am having problems when dragging the cursor over different windows.I manage to draw a rectangle over them but when i move mouse to another window the retangle still stays on the previous window. I tried to store the previous windows handle and when mouse was over another window i simply called the Invalidate() function to the previous window. For some strange reasons this worked only for 90% of the windows , but in some cases the retangle still remained over some windows. Can anyone suggest any other way of achieving this?? Regards "Success is the ability of going from one failure to another with no loss of enthusiasm" - W.Churchill Re: Windows Spy mark novak26-Jul-05 2:56 mark novak 26-Jul-05 2:56  Try calling UpdateWindow() after Invalidate(). If this doesn't work you can try hiding and then showing the window. To get message from Windows if user writes on hard disk sannik25-Jul-05 23:43 sannik 25-Jul-05 23:43  My program has to get the message from Windows, if the every user wants to save his information on hard disk, or if the every user wants to connect to my computer by local net. How I can make this function? qqq

Last Visit: 31-Dec-99 18:00     Last Update: 5-Jun-24 18:58 Refresh ᐊ Prev1...11133111341113511136111371113811139111401114111142 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.