C / C++ / MFC

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Re: SelectObject() Rules Prem Kumar9-Jul-02 7:32 Prem Kumar 9-Jul-02 7:32  If you are using MFC, every thing is taken care of if all the objects are local objects. But if you are programming in SDK you need to make calls to DeleteObject with the resource handle. Re: SelectObject() Rules Obliterator9-Jul-02 12:06 Obliterator 9-Jul-02 12:06  I'm using MFC - and all is definitely not taken care of! Anyhow it looks like I've finally found the leak - I'll be testing on Win9x tomorrow to be sure! There was a pen constructed inside an if statement then selected. The old pen should have been reselected before leaving the if statement. As it was not I'm guessing the pen could not be correctly destroyed as its scope was lost. Thanks anyhow. -- The Obliterator Re: SelectObject() Rules Michael Dunn9-Jul-02 19:25 Michael Dunn 9-Jul-02 19:25  Correct, a GDI object that is selected into a DC cannot be destroyed. --Mike-- Just released - RightClick-Encrypt v1.3 - Adds fast & easy file encryption to Explorer My really out-of-date homepage Sonork-100.19012 Acid_Helm Re: SelectObject() Rules Obliterator9-Jul-02 23:14 Obliterator 9-Jul-02 23:14  Wouldn't you have thought it could assert in the destructor if selected in the DC??? -- The Obliterator Re: SelectObject() Rules Anonymous10-Jul-02 11:33 Anonymous 10-Jul-02 11:33  Check your knowledge on DC b4 replying.. Sudip Stupidity Sucks Copy from Screen to Bitmap NickOne9-Jul-02 6:29 NickOne 9-Jul-02 6:29  Hello all, I'd like ot copy from the screen to a bitmap. I have an MDI application that opens DIBs. After I open one, I'd like to get this DIB from the screen as a new bitmap in a new window. I read the VC++ 6.0 Bible and they said just do this void CDisplayDIBView::GetImage(int x, int y, CDC *pDC, CBitmap *pBitmap) { BITMAP bm; pBitmap->GetObject( sizeof(BITMAP), &bm); CDC MemDC; MemDC.CreateCompatibleDC(pDC); CBitmap *pOldBitmap = MemDC.SelectObject(pBitmap); MemDC.BitBlt(0, 0, bm.bmWidth, bm.bmHeight, pDC, x, y, SRCCOPY); MemDC.SelectObject(pOldBitmap); } Well when I do this, I get an error saying the instruction at 0x5f47c360 referenced memory at 0x000000e. The memory could not be "read." How would I go about correcting this, or accomplishing what I want to do? Thanks a whole lot, NickOne Re: Copy from Screen to Bitmap Chris Losinger9-Jul-02 8:01 Chris Losinger 9-Jul-02 8:01  NickOne wrote: Well when I do this, I get an error which line gives you the error? is pDC valid? is pBitmap non-NULL? -c Being just contaminates the void.   --Robyn Hitchcock Image Processing - easy, like Sunday morning. Re: Copy from Screen to Bitmap Ernest Laurentin9-Jul-02 8:32 Ernest Laurentin 9-Jul-02 8:32  First make sure that your bitmap is not larger than your screen or the offset that you passed (x,y) are not playing against you. Make sure your bitmap object is not null or too small. Maybe you need to call CreateCompatibleBitmap(...) with your bitmap object. Good luck! Last Article: Adding VBScript/JScript to C++ App System tray Anonymous9-Jul-02 5:33 Anonymous 9-Jul-02 5:33  Hello everyone! Does anyone knows how tu use the system tray ? Thanks for your answers Re: System tray Joaquín M López Muñoz9-Jul-02 5:41 Joaquín M López Muñoz 9-Jul-02 5:41  If you refer to system tray icons, Chris Maunder's Adding Icons to the System Tray will probably cover all of your needs. Joaquín M López Muñoz Telefónica, Investigación y Desarrollo Re: System tray Renjith Ramachandran10-Jul-02 1:26 Renjith Ramachandran 10-Jul-02 1:26  yaa it is easy NOTIFYICONDATA gl_sNotifyIconData; gl_sNotifyIconData.cbSize=sizeof(NOTIFYICONDATA); strcpy(gl_sNotifyIconData.szTip,"your Tool tip here"); gl_sNotifyIconData.uID=FTPTRAYID; gl_sNotifyIconData.hIcon=AfxGetApp()->LoadIcon(ID of ur tray ICON); gl_sNotifyIconData.uCallbackMessage=the Message ID of ur app here; gl_sNotifyIconData.hWnd=this->m_hWnd; gl_sNotifyIconData.uFlags=NIF_ICON|NIF_MESSAGE|NIF_TIP; Shell_NotifyIcon(NIM_ADD,&gl_sNotifyIconData); this will put the icon in to your system tray and everythime u enter mouse over it it post some messages so it is necessery to trap the message by adding the ON_MESSAGE(messageID,onmessage) in your messagemap and add a function like onmessage(WPARAM wparam,LPARAM lparam) { wparam contains the trayID and lparam caontains the message handle them according to ur need } Renjith-CPian. Dialog controls Anonymous9-Jul-02 5:31 Anonymous 9-Jul-02 5:31  Hello How can you make a dialog that doesn't take the control of the application (wait for the answer of DoModal)like the tool windows of psp for example... Re: Dialog controls Joaquín M López Muñoz9-Jul-02 5:38 Joaquín M López Muñoz 9-Jul-02 5:38  These are called modeless dialogs. Search for these words on your documentation. Joaquín M López Muñoz Telefónica, Investigación y Desarrollo Re: Dialog controls Anonymous9-Jul-02 5:51 Anonymous 9-Jul-02 5:51  Thank you! Re: Dialog controls Prem Kumar9-Jul-02 5:42 Prem Kumar 9-Jul-02 5:42  Ok, I dont know what 'psp' means, but what i think is you need something like a modeless dialog ?? (Yeah, i know its a crime to even post such awnsers, but that was the only thing i could think of from your post! Need some more Data..) Re: Dialog controls benjymous9-Jul-02 6:02 benjymous 9-Jul-02 6:02  Prem Kumar wrote: Ok, I dont know what 'psp' means Paintshop pro, I'd guess -- Help me! I'm turning into a grapefruit! Re: Dialog controls Prem Kumar9-Jul-02 7:26 Prem Kumar 9-Jul-02 7:26  hi benjymous(Alias i hope), Thx for the Info. Filetype icon association Brind_Foin9-Jul-02 5:01 Brind_Foin 9-Jul-02 5:01  Hi everybody! I need help quickly to terminate a program at work. I need to know how can I assign and change file icons in respect with their extension. IE : I want to create a file with *.pof as exension then being able to assign an icon to it programmatically... Thanks for your help! Brind If coding looks like drugs... I should go on therapy... Re: Filetype icon association Joaquín M López Muñoz9-Jul-02 5:17 Joaquín M López Muñoz 9-Jul-02 5:17  Blake V. Miller shows how to Associate File Extension with Shell OPEN command and Application. I guess you can dismiss the program part and reuse the code for setting the icon. Joaquín M López Muñoz Telefónica, Investigación y Desarrollo Re: Filetype icon association Brind_Foin9-Jul-02 5:22 Brind_Foin 9-Jul-02 5:22  Thanks Joakin, You point me directly at the right place! Brind If coding looks like drugs... I should go on therapy... Visual Studio 6 mhamsa9-Jul-02 4:55 mhamsa 9-Jul-02 4:55  This may be a "dated" question but does anyone know where you can purchase Visual Studio 6.0? I've been unable to find it at any of the major software outlets. We've got lots of VC++ (and VB 6) code to maintain with a few new programmers coming on and I'd to do the right thing and purchase copied of VS6 for them. Any Ideas? mike... Re: Visual Studio 6 benjymous9-Jul-02 6:08 benjymous 9-Jul-02 6:08  Amazon UK still have copies of VS6 here but they don't seem to want to ship to the US -- Help me! I'm turning into a grapefruit! InnoSetup rrrado9-Jul-02 4:28 rrrado 9-Jul-02 4:28  HI, des anybody know, how to insert new line into string in the InnoSetup ? For example : [Regisrty] Root: HKCU; Subkey: "Software\My Company\My Program\Settings"; ValueType: string; ValueName: "MyString"; ValueData: "line1???line2" What to write at place of '???' to break the line ? \r\n does not work Thanks rrrado Re: InnoSetup Roger Allen9-Jul-02 5:21 Roger Allen 9-Jul-02 5:21  When entering the text for \r\n have you tried typing in ALT+012 and ALT+013 (the ascii codes for the characters - these may not be correct, check them) directly into the edit control? Roger Allen Sonork 100.10016 If I had a quote, it would be a very good one. Re: InnoSetup rrrado9-Jul-02 5:38 rrrado 9-Jul-02 5:38  I tried. It does not work (alt+13, alt+10) rrrado

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