C / C++ / MFC

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Mouse 8-Jul-02 21:30 8-Jul-02 21:30  hi to all, do u know how to get message of "copy" from rt click of a mouse. for getting mouse message we use getkeystate.. mmioRead,simple ..Please ..Helpme 8-Jul-02 20:48 8-Jul-02 20:48  hi all. i have to Read the data for a Particular Portion of a wave file, as an Integer array or a Byte array. how i can i use the mmioRead function for above. Please help me very urgent thanks in advance. Custom captions with WM_NCPAINT Michael Dunn8-Jul-02 20:21 Michael Dunn 8-Jul-02 20:21  Has anyone done a custom-drawn caption & border using WM_NCCALCSIZE, WM_NCACTIVATE, and WM_NCPAINT? I'm trying it this way in a WTL app (as opposed to removing WS_CAPTION, and just drawing the edges of the client area to look like a border) and there are two things I can't solve. The standard min/max/close buttons get drawn by the system when the mouse moves in the border. The buttons get drawn when you r-click in the caption area. It seems no one has written about using those messages (aside from the neat MFC custom caption article, which alas only helped partway) so I'm stumped as to what to try next. Handling WM_NCMOUSEMOVE does work around problem 1, but I still have no solution to #2. (Actually, Paul D. glossed over this problem in a C++ Q+A article, and said removing those buttons and the gray line at the bottom of the caption would take "a gazillion lines of code" ) --Mike-- Just released - RightClick-Encrypt v1.3 - Adds fast & easy file encryption to Explorer My really out-of-date homepage Sonork-100.19012 Acid_Helm Re: Custom captions with WM_NCPAINT Roger Allen8-Jul-02 23:36 Roger Allen 8-Jul-02 23:36  Did you look at the custom caption aricle by David Lorde? Roger Allen Sonork 100.10016 If I had a quote, it would be a very good one. Re: Custom captions with WM_NCPAINT KaЯl9-Jul-02 5:15 KaЯl 9-Jul-02 5:15  I remember an article using these messages, written by Roger Onslow. It was about Flat toolbars, and WM_NCPAINT was used to draw grippers (in fact, no, but you will understand looking to the article). The article may be found at codeguru.earthweb.com/toolbar/devstudio_like.shtml Another implementation on WM_NCPAINT was the fantastic Cristi Posea's docking windows. At the time I've customized it to add a close button on it, drawn flat if mouse pointer wasn't over (the latest version of this article should have this functionnality to). If I remember well I used WM_NCHITTEST to know the mouse position and determin if it was over a "sensitive" area. HTH, We do not inherit the Earth from our ancestors. We borrow it from our children. Antoine de Saint Exupéry (1900-1944) Help!Change state in ListCtrl 8-Jul-02 19:36 8-Jul-02 19:36  Hi! In my progect i use ListCtrl with multi selection items.If user select any items from ListCtrl and then press on button "Delete" i delete selected items from ListCtrl(i use GetFirstSelectedItem,GetNextSelectedItem).The problem is when ListCtrl lost focus.Because user after many action can again press button "Delete" and ListCtrl "Remember" selected items.I want to do if ListCtrl lost focus clear all selected items.And when ListCtrl recieve focus to do that user will can select again many items.Help me,please,how can i do this!!! Ira. Re: Help!Change state in ListCtrl KaЯl9-Jul-02 4:25 KaЯl 9-Jul-02 4:25  Have you tried to call CListCtrl::SetItemState(mySelectedItemIndex, !LVIS_SELECTED, LVIS_SELECTED); ? where mySelectedItemIndex belongs to your selected items index ? We do not inherit the Earth from our ancestors. We borrow it from our children. Antoine de Saint Exupéry (1900-1944) Please,Pleaseeeeeeeeeeeee.. 8-Jul-02 19:01 8-Jul-02 19:01  hi all, I am using "mciSendString" api function to record the wave audio through microphone. My question is how can i capture the audio data in Integer array while recording? Because I have to Plot the line graph(spectrum) by using these values while recording(real Time) Please help me. Is there any other method to Plot the graph while recording(realTime) Thank in advance. CFileDialog Abin8-Jul-02 18:49 Abin 8-Jul-02 18:49  How do you open a file dialog with modern buttons like "desktop", "My documents", "Network place" etc? I can't seem to get those with CFileDialog... Re: CFileDialog Ravi Bhavnani8-Jul-02 20:01 Ravi Bhavnani 8-Jul-02 20:01  See this article. /ravi Let's put "civil" back into "civilization" http://www.ravib.com ravib@ravib.com help 8-Jul-02 18:47 8-Jul-02 18:47  i want to clear the clipboard.i used the fn Emptyclipboard.but i am able to paste the text once and then only it is emptying.why is it so.Also i am checking openclipboard(). ATL Object Rene De La Garza8-Jul-02 17:04 Rene De La Garza 8-Jul-02 17:04  Im creating an ATL Exe application, then i create an ATL object on it called CHi, but i cant create an instance of it, i dont know why, i do this CComPtr<ichi> object; object.CoCreateInstance(CLSID_CHi); it compile but it fails at the moment of try to create it,any idea why?, if i do the same with an mfc project it works. and another question, how can i add an ATL Object in a WTL App? Re: ATL Object A.A.8-Jul-02 17:09 A.A. 8-Jul-02 17:09  Myself wrote: Im creating an ATL Exe application, then i create an ATL object on it called CHi, but i cant create an instance of it, i dont know why, i do this First question comes up, did you register it? Second, what do you mean by 'fails', what kind of error or problem do you get? Re: ATL Object Rene De La Garza8-Jul-02 17:23 Rene De La Garza 8-Jul-02 17:23  hres = -2147221164 Re: ATL Object Chris Losinger8-Jul-02 17:37 Chris Losinger 8-Jul-02 17:37  -2147221164 = "class not registered" you might want to verify that the class really is registered correctly. -c Being just contaminates the void.   --Robyn Hitchcock Image Processing - easy, like Sunday morning. Re: ATL Object Rene De La Garza8-Jul-02 17:41 Rene De La Garza 8-Jul-02 17:41  if i do that with an mfc project it works, i just add a new atl object and create it in there and it works. Re: ATL Object Chris Losinger8-Jul-02 17:41 Chris Losinger 8-Jul-02 17:41  are you calling CoInitialize somewhere before trying to create the object? -c Being just contaminates the void.   --Robyn Hitchcock Image Processing - easy, like Sunday morning. Re: ATL Object Rene De La Garza8-Jul-02 17:47 Rene De La Garza 8-Jul-02 17:47  Yes CoInitialize(NULL), in the _tWinMain and then try to create the object problem with recordset delete function 8-Jul-02 16:49 8-Jul-02 16:49  i have tried many things to make this function work correctly. the problem only occurs if i have a duplicate record in the recordset. if there are no duplicates the function is fine. i following function deletes all the records in the recordset. if i have a duplicate log on file i get the error "Multiple rows were updated" is there a way i can avoid this error. Or is there a way i can call a function to delete all the records. My limitations are - I am using a VFP table and can only open it as a snapshot. m_pSet->MoveFirst(); if(!m_pSet->IsEOF()){ m_pSet->MoveLast(); m_pSet->GetBookmark(endbookmark); } if(endbookmark.m_iVal>0){ m_pSet->MoveFirst(); do{ m_pSet->Delete(); m_pSet->MoveNext(); }while(!m_pSet->IsEOF()); } thank you. CString::GetBuffer Abin8-Jul-02 15:39 Abin 8-Jul-02 15:39  LPTSTR GetBuffer( int nMinBufLength ); I don't understand the parameter "nMinBufLength". What's the point of this parameter? what kind of value I should pass in? "The minimum length"?? I thought asking for a "maximum length" would make a lot more sense, oh well. Any help? Thanks in advance. Re: CString::GetBuffer [edited due to slight error] Nish Nishant8-Jul-02 15:44 Nish Nishant 8-Jul-02 15:44  nMinBufLength specifies the minimum size of the buffer that you can safely play with. If you do a GetBuffer with nMinBufLength = 10, you can do whatever you want with the first 10 characters of the LPTSTR that is returned. If you do something with the 11th character, let the devil save you!!! [newly added]Of course that's assuming the actual buffer is smaller than 10 characters. Whatever you specify for nMinBufLength , if the actual buffer is bigger, that's what is returned [/newly added] Use nMinBufLength = 0 to get a buffer that is the current size of the underlying CString buffer Nish Author of the romantic comedy Summer Love and Some more Cricket [New Win] Review by Shog9 Click here for review[NW] Re: CString::GetBuffer [edited due to slight error] Abin8-Jul-02 16:54 Abin 8-Jul-02 16:54  Ok so is I'm using a CString object to store contents read from a text file, whose size is unknown yet, I'd better make it: LPTSTR lpBuffer = str.GetBuffer(A_HUGE_NUMBER_HERE); ? Re: CString::GetBuffer [edited due to slight error] Rene De La Garza8-Jul-02 17:08 Rene De La Garza 8-Jul-02 17:08  You better Use it with str.GetBuffer(0); it will return all the text Re: CString::GetBuffer [edited due to slight error] Christian Graus8-Jul-02 17:53 Christian Graus 8-Jul-02 17:53  CString has a GetSize or GetLength or something. You can get the size from that. It's much easier to use iostreams and std::string to read in a text file, if you're saying that you're grabbing the buffer, then reading the file. That's just plain ugly. Christian I am completely intolerant of stupidity. Stupidity is, of course, anything that doesn't conform to my way of thinking. - Jamie Hale - 29/05/2002 using delete() in recordset 8-Jul-02 15:28 8-Jul-02 15:28  i have tried many things to make this function work correctly. the problem only occurs if i have a duplicate record in the recordset. i have a function that deletes all the records in the recordset. if i have a duplicate log on file i get the error "Multiple rows were updated" is there a way i can avoid this error. Or is there a way i can call a function to delete all the records. My limitations are - I am using a VFP table and can only open it as a snapshot. m_pSet->MoveFirst(); if(!m_pSet->IsEOF()){ m_pSet->MoveLast(); m_pSet->GetBookmark(endbookmark); } if(endbookmark.m_iVal>0){ m_pSet->MoveFirst(); do{ m_pSet->Delete(); m_pSet->MoveNext(); }while(!m_pSet->IsEOF()); } thank you.

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