C / C++ / MFC

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Re: Services and Window Station Tomasz Sowinski5-Mar-02 10:11 Tomasz Sowinski 5-Mar-02 10:11  Looking at the prototype of SetProcessWindowStation it seems that you have to execute it in the context of process to change. As last resort, you may try to search the MSDN for examples of injecting DLLs into all memory spaces of all processes. Tomasz Sowinski -- http://www.shooltz.com Re: Services and Window Station 5-Mar-02 10:26 5-Mar-02 10:26  Ok, Thanks for the hint. Olley Pospyelov Re: Services and Window Station Michael Dunn5-Mar-02 8:45 Michael Dunn 5-Mar-02 8:45  Is SetThreadDesktop() what you're looking for? --Mike-- Best score on the mini-putt game: 26 My really out-of-date homepage Sonork - 100.10414 AcidHelm Big fan of Alyson Hannigan and Jamie Salé. Checkbox list with images kirankm5-Mar-02 7:48 kirankm 5-Mar-02 7:48  Hi all, Is it possible to create a checkbox list with icons preceding the text using WIn32 APIs only(no MFC) ?If yes can the images be updated dynamically ie is a columwise implementation of image and text be formed? Your thoughts are highly appreciated. TIA, Vivek Re: Checkbox list with images Tomasz Sowinski5-Mar-02 7:51 Tomasz Sowinski 5-Mar-02 7:51  Yes, it's possible. You have two choices here: a) use listbox control and owner-draw. b) use listview control and use state images. Much easier, because you don't actually have to draw anything. The only difficulty is that listview has to be subclassed to handle clicks on checkboxes. You can also use LVS_EX_CHECKBOXES extended listview style to get listview with checkboxes for free. The only problem with that approach is that it doesn't work on Win95 without IE 3.0. This limitation is becoming purely theoretical these days, however. Tomasz Sowinski -- http://www.shooltz.com Re: Checkbox list with images Joaquín M López Muñoz5-Mar-02 7:53 Joaquín M López Muñoz 5-Mar-02 7:53  Starting with IE3, list controls support check boxes natively. Eran Yariv's article Adding Checkboxes to a list control provides more info on the subect. If you already managed to have list controls without MFC support, adding the check boxes thing shouldn't be difficult. Joaquín M López Muñoz Telefónica, Investigación y Desarrollo Re: Checkbox list with images kirankm5-Mar-02 8:22 kirankm 5-Mar-02 8:22  Hi all, Thanks for ur prompt replies. I experimented with checkboxes by using button class for window creation and SendMessage() calls.Since I am planning to write a generic code for both WinNT and WinCE,I wanted to know whether such a thing can be done without having to write my own class implementaion for checkboxes. What restrictions does use of MFC place when I am trying to write a generic platform idependent code? TIA, Vivek Re: Checkbox list with images Joaquín M López Muñoz5-Mar-02 8:43 Joaquín M López Muñoz 5-Mar-02 8:43  I'm afraid I don't quite understand the first part of your post. With respect to using a unified MFC code for NT and CE platforms, it is certainly possible and the burdens imposed by MFC here are usually just reflections of the intrinsic differences between the APIs of both systems. If you plan to write code targeted for CE and NT, remember that CE is Unicode-only, which means you're forced to use that pesky _T and TCHAR macros and the versions of the C run-time library string functions as declared in <tchar.h>. Joaquín M López Muñoz Telefónica, Investigación y Desarrollo XOR logical operator moredip5-Mar-02 7:44 moredip 5-Mar-02 7:44  I know this is a bit of a dumb question; but does C++ have an XOR operator If not, can anyone remember enough boolean algebra to create an XOR out of AND, OR and NOT? I should know, I only studied this stuff about 2 years ago, but heh, why not Harness The Power Of The Web (tm) TIA, Pete Re: XOR logical operator alex.barylski5-Mar-02 7:47 alex.barylski 5-Mar-02 7:47  Bitwise-exlcusive OR ^ Cheers "An expert is someone who has made all the mistakes in his or her field" - Niels Bohr Re: XOR logical operator moredip5-Mar-02 7:59 moredip 5-Mar-02 7:59  Thanks, but I need a non-bitwise operator, i.e. && || etc. BTW, that was an impressive response time (3 minutes) Re: XOR logical operator Joaquín M López Muñoz5-Mar-02 7:49 Joaquín M López Muñoz 5-Mar-02 7:49  ^ is the bitwise XOR operator, whereas ^^ is the logical XOR operator. If you don't know the difference, feel free to ask Joaquín M López Muñoz Telefónica, Investigación y Desarrollo Re: XOR logical operator Chris Losinger5-Mar-02 8:00 Chris Losinger 5-Mar-02 8:00  there is no logical XOR. at least not in VC6 -c Smaller Animals Software, Inc. You're the icing - on the cake - on the table - at my wake. Modest Mouse Re: XOR logical operator Joaquín M López Muñoz5-Mar-02 8:01 Joaquín M López Muñoz 5-Mar-02 8:01  Oh yes, there ain't such an operator! I guess I just extended the obvious analogy from & and && without thinking it too much. What strikes me is that all these years have passed without noticing before Thanks for pointing out. My apologies to all. Joaquín M López Muñoz Telefónica, Investigación y Desarrollo Re: XOR logical operator Chris Losinger5-Mar-02 8:05 Chris Losinger 5-Mar-02 8:05  i wouldn't have known, if i wasn't looking for the exact thing last night. didn't find it, of course. -c Smaller Animals Software, Inc. You're the icing - on the cake - on the table - at my wake. Modest Mouse Re: XOR logical operator Nemanja Trifunovic5-Mar-02 8:13 Nemanja Trifunovic 5-Mar-02 8:13  I found out that while answering a question to a VB programmer. He asked about XOR in C++, and I thought: "What a stupid question!", but I found out it was not that stupid after all. I vote pro drink Re: XOR logical operator Joaquín M López Muñoz5-Mar-02 8:17 Joaquín M López Muñoz 5-Mar-02 8:17  That's what I like about answering questions here -- you have to relearn the stuff in order to give accurate answers, even when you get to the basics. Joaquín M López Muñoz Telefónica, Investigación y Desarrollo Re: XOR logical operator moredip5-Mar-02 8:02 moredip 5-Mar-02 8:02  VC++ spews at ^^ if( aCurrCPA[ref_c] ^^ aCurrCPA[temp_c] ) produces this error D:\Pete\Capture\vss\Tracker.cpp(208) : error C2059: syntax error : '^' is it non-standard C? Re: XOR logical operator Tim Smith5-Mar-02 7:57 Tim Smith 5-Mar-02 7:57  GEEK OUT ALERT!!!! XOR via AND and OR: (a & !b) | (b & !a) Tim Smith I know what you're thinking punk, you're thinking did he spell check this document? Well, to tell you the truth I kinda forgot myself in all this excitement. But being this here's CodeProject, the most powerful forums in the world and would blow your head clean off, you've got to ask yourself one question, Do I feel lucky? Well do ya punk? Re: XOR logical operator Joaquín M López Muñoz5-Mar-02 7:55 Joaquín M López Muñoz 5-Mar-02 7:55  Shouldn't it be (a & ~b) | (b & ~a) not to mix logical and bitwise operators? Joaquín M López Muñoz Telefónica, Investigación y Desarrollo Re: XOR logical operator moredip5-Mar-02 8:06 moredip 5-Mar-02 8:06  so for a logical operator this should work (bool1 && !bool2) || (bool2 && !bool1) right? Thanks for the super-fast answers, BTW Re: XOR logical operator moredip5-Mar-02 8:08 moredip 5-Mar-02 8:08  In fact, if we want get all clever about it we could use #define XOR( a, b ) ((a) && !(b)) || ((b) && !(a)) Re: XOR logical operator Ernest Laurentin5-Mar-02 8:37 Ernest Laurentin 5-Mar-02 8:37  template <class T> T XOR(const T val1, const T val2) { return ( ((val1)&(~val2)) | ((~val1)&(val2)) ); } Hope that I am correct! "Dirty hands lead to important discovery..." - Thomas Edison Re: XOR logical operator Bill Wilson5-Mar-02 9:33 Bill Wilson 5-Mar-02 9:33  For this to work, the class used has to implement the operators &,| and ~. Otherwise you get comile errors (right?) Good Luck, Bill Re: XOR logical operator Joaquín M López Muñoz5-Mar-02 8:15 Joaquín M López Muñoz 5-Mar-02 8:15  This is more efficient (maximum number of evaluations is 2, in the previous formula it is 4) bool1?!bool2:bool2 Joaquín M López Muñoz Telefónica, Investigación y Desarrollo

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