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GetActiveIndex() from a PropertySheet 26-Mar-02 3:25 26-Mar-02 3:25  Hi, I am trying to use GetActiveIndex() in the property sheet to get the index of an active page. I encountered a problem in GetTabControl() which returns 0xcccccccc. I believe the setup of my property sheet and pages should be right by using DoModal() and AddPage(). Please give me some suggestions on troubleshooting this problem. Thanks! Re: GetActiveIndex() from a PropertySheet Tomasz Sowinski26-Mar-02 3:32 Tomasz Sowinski 26-Mar-02 3:32  Are you calling GetTabControl before DoModal? Tomasz Sowinski -- http://www.shooltz.com ** If you're going to rape, pillage and burn, be sure to do things in that order. ** Re: GetActiveIndex() from a PropertySheet 26-Mar-02 3:49 26-Mar-02 3:49  I called GetActiveIndex() after DoModal() and Addpages(). If I go straight to display data on the first page, it works fine when I am on the first page and vice versa on the other pages. However, I would like to display data by the active page which gives me more flexability. Save Dialog Box Anthony988726-Mar-02 3:21 Anthony9887 26-Mar-02 3:21  Hi, I'm trying to create a save dialog box with 2 filters. How can i update the extention in the filename whenever the "Save As Type" box is highlighted. Thanks debugging Rajveer26-Mar-02 3:06 Rajveer 26-Mar-02 3:06  I've just started learning how to debug, and I'm still kinda new with C++ programming language. I have two variables declared as doubles: x, slope while debugging, I noticed that sometimes in the loop they're values came up as: slope = 1.#INF000000000 x = -1.#IND000000000 what does that mean?....why does it happen? Re: debugging Tim Smith26-Mar-02 3:21 Tim Smith 26-Mar-02 3:21  (EDIT: Corrections) 1.#INF stands for positive infinity. 1.#IND stands for positive ideterminite. If you add a negative, then they are negative infinity. This can happen if a variable has yet to be initialized. It can also happen during ASCII to float conversions and math operations. 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: debugging 26-Mar-02 3:58 26-Mar-02 3:58  So can I use that value just like other values in my code, for example in an if statement, could I say: if(x==1.#INF) { //do stuff } or when I say if(x>=9000) { //do stuff } will the infinite value be regarded as greater than 9000? Re: debugging Tim Smith26-Mar-02 5:16 Tim Smith 26-Mar-02 5:16  You can use _finite to test to see if a value is finite. Thus your NAN, QNAN, INF, IND should return false. (???) 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: debugging Tomasz Sowinski26-Mar-02 3:24 Tomasz Sowinski 26-Mar-02 3:24  1.#INF means positive infinity - usually you get it when you divide by zero. 1.#IND represents so-called 'quiet-nan' - for example, when you take the logarithm of negative value. Tomasz Sowinski -- http://www.shooltz.com ** If you're going to rape, pillage and burn, be sure to do things in that order. ** Re: debugging 26-Mar-02 3:59 26-Mar-02 3:59  So can I use that value just like other values in my code, for example in an if statement, could I say: if(x==1.#INF) { //do stuff } or when I say if(x>=9000) { //do stuff } will the infinite value be regarded as greater than 9000? Re: debugging DRHuff26-Mar-02 10:58 DRHuff 26-Mar-02 10:58  Don't - instead figure out what is setting the bad values. Those numbers indicate that you are doing something wrong. If the variables are uninitialized there is no guarantee that they will always be the same. If you are dividing by 0 or taking the log of a negative number you should be checking your inputs because they are faulty. Dave Huff There are no small projects - only young ones. Re: We were both wrong Tom Tim Smith26-Mar-02 5:13 Tim Smith 26-Mar-02 5:13  1.INF/-1.INF = Positive/Negative infinity 1.IND/-1.IND = Positive/Negative indeterminate 1.QNAN/-1.QNAN = Positive/Negative quiet not-a-number 1.NAN/-1.NAN = Positive/Negative not-a-number IEEE Reference information 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? How to show and handle CFormView in ActiveX sanskypotov26-Mar-02 2:59 sanskypotov 26-Mar-02 2:59  Hi, Can someone tell me , How to show and handle CFormView in an ActiveX Control. Thanks, Sansky God is Good, all the Time. All the Time, God is Good. Re: How to show and handle CFormView in ActiveX Michael P Butler26-Mar-02 3:24 Michael P Butler 26-Mar-02 3:24  FormView wasn't really designed for placing in an activex control. What are you try to achieve as there may be a better way. I'm guessing you are wanting an activex control made up on a number of other controls? Have a search on MSDN for composite controls. Michael Thanks, but according to Q155973 sanskypotov26-Mar-02 19:52 sanskypotov 26-Mar-02 19:52  Hi, Actually trying to develop an ActiveX , where I can show other some ActiveX's , which also needs to be dragged. So I believe that I need CFormView for this. According to the art Q155973, this is possible , but I am unable to find the sample DLGX.EXE at microsoft.com, any suggestions . God is Good, all the Time. All the Time, God is Good. Re: How to show and handle CFormView in ActiveX Joaquín M López Muñoz26-Mar-02 3:25 Joaquín M López Muñoz 26-Mar-02 3:25  If you do not intend to take advantage of SDI/MDI architecture, it's much easier to embed a CDialog-based object, just by specifying the ActiveX window as the parent when creating the dialog. Some CRect arithmetic could be needed too in the process of embedding. If you follow this approach, you can even get scroll bars without much effort. Joaquín M López Muñoz Telefónica, Investigación y Desarrollo Finding tree root 26-Mar-02 3:04 26-Mar-02 3:04  hi, 1.how to find weather the item clicked is a root or leaf in a tree. 2.should the menu resource be initialised or something before loading it to diaplay popup menu because I get run time error saying the handle is null. I use the same procedure said all over this site. help Re: Finding tree root Tomasz Sowinski26-Mar-02 3:38 Tomasz Sowinski 26-Mar-02 3:38  Regarding (1): Handle WM_LBUTTONDOWN. Use CTreeCtrl::HitTest to get HTREEITEM. CTreeCtrl::GetRootItem returns root, so simple comparison of HTREEITEMS will answer your question. If you need to check if item is leaf, call CTreeCtrl::GetChildItem and pass clicked HTREEITEM - if it returns NULL, your item is a leaf. Tomasz Sowinski -- http://www.shooltz.com ** If you're going to rape, pillage and burn, be sure to do things in that order. ** Passing parameters to a Dialog Sayan Mukherjee26-Mar-02 2:28 Sayan Mukherjee 26-Mar-02 2:28  Hi, I have a dialog-based MFC application. In response to a button click on the dialog I need another dialog to popup. So far so good. I also need the text in an edit field in Dialog_1 to appear in an edit field in Dialog_2. In short, I need parameters to be passed from one window to another. How can I do this? With best regards, Sayan Mukherjee (sayanmukherjee@indiatimes.com) Re: Passing parameters to a Dialog Tomasz Sowinski26-Mar-02 2:36 Tomasz Sowinski 26-Mar-02 2:36  Add data members do dialog2 and initialize them before calling DoModal. Tomasz Sowinski -- http://www.shooltz.com ** If you're going to rape, pillage and burn, be sure to do things in that order. ** Re: Passing parameters to a Dialog 26-Mar-02 2:47 26-Mar-02 2:47  Your comment is FILTHY You are SICK Re: Passing parameters to a Dialog Tomasz Sowinski26-Mar-02 2:53 Tomasz Sowinski 26-Mar-02 2:53  Did you forget to take your pills today? Tomasz Sowinski -- http://www.shooltz.com ** If you're going to rape, pillage and burn, be sure to do things in that order. ** Re: Passing parameters to a Dialog Nish Nishant26-Mar-02 3:09 Nish Nishant 26-Mar-02 3:09  Hi Tomasz Initially I was confused as to his post too. The I guessed. The sig must have upset him. Or if I guess right "upset her". The anonymous poster is in all probability a woman Your sig :- "** If you're going to rape, pillage and burn, be sure to do things in that order. **" Nish p.s. don't worry Tomasz. different people have different senses and levels of humor. I am looking for a free racing game. Old style racing game without any complicated 3D stuff. Around 4 MB download. If anyone has such a game, please inform me. Re: Passing parameters to a Dialog Tomasz Sowinski26-Mar-02 3:27 Tomasz Sowinski 26-Mar-02 3:27  Nish [BusterBoy] wrote: don't worry Tomasz. different people have different senses and levels of humor I'm absolutely not worried. Actually, I was thinking about changing the sig - it's about week old. But now I'll keep it for another week Tomasz Sowinski -- http://www.shooltz.com ** If you're going to rape, pillage and burn, be sure to do things in that order. ** Re: Passing parameters to a Dialog Sayan Mukherjee26-Mar-02 2:43 Sayan Mukherjee 26-Mar-02 2:43  Hi, Thanks for the answer. It was really helpful. A related question: In Windows SDK, each window has a place where a 32 bit pointer can be passed which is accessible from other windows. Using the heap, one can pack any amount of data and pass it. Is there any equivalent to that under MFC? I am sorry if the question is vague. With best regards, Sayan Email:sayanmukherjee@indiatimes.com

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