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Re: Load a driver Tim Deveaux14-Mar-02 4:24 Tim Deveaux 14-Mar-02 4:24  You can set up a driver project in VC, though its a good idea to look at what build.exe does first. For the linker, the /subsystem:NATIVE,400 /driver settings will be needed. Compiler switches will vary based on language (c or c++). The NTDDK libs (int64.lib ntoskrnl.lib hal.lib) want _stdcall calling convention. On NT, you can dynamically load a driver using the service control manager, calling CreateService with SERVICE_KERNEL_DRIVER as the service type, then StartService. This doesn't work on Win9x though - not sure if its possible without user interaction (can u say PnP?). Re: Load a driver Don Miguel14-Mar-02 6:03 Don Miguel 14-Mar-02 6:03  Hello Tim, Thanks a lot for the tips with linker. Those are exactly what I need. Best regards, Miguel Re: Load a driver Lim Bio Liong14-Mar-02 4:31 Lim Bio Liong 14-Mar-02 4:31  Hello Don, To dynamically load a device driver in your (win32 USER-MODE) application, you would use the CreateFile() API. For example : hDriver = CreateFile ( "\\\\.\\Omron", GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, 0, // Default security OPEN_EXISTING, FILE_FLAG_OVERLAPPED, // Perform asynchronous I/O 0 ); Notice that the format of the first parameter. A device driver is named using the convention "\\.\<Device name>". You can get the list of names of devices when you look up the Control Panel's Services applet. After a successful call to the CreateFile() API, you will be returned a handle to the device driver (hDriver as in the above example). You communicate with the device driver via the DeviceIoControl() API. For example : bReturnCode = DeviceIoControl ( hDriver, IOCTL_OMRON_WRITE, &lWriteCode, sizeof(lWriteCode), &byReturnByte, sizeof(byReturnByte), &dwBytesReturned, &ov ); The second parameter specifies the control code for the operation that the device is supposed to perform. The technical manual (or SDK) for your device should supply your with these information. The other parameters are for transferring data to and from the device driver. Look up the API documentation for details. As for compiling a device driver, the traditional way is to install DDK as mentioned by Thomas in his mail. Hope the above helps, Don. Best Regards, Bio. Re: Load a driver Don Miguel14-Mar-02 6:15 Don Miguel 14-Mar-02 6:15  Hello Bio, Thanks a lot for your help, you bring many light in my project. Thanks also for pointing to me difference between USER-MODE and KERNEL-MODE, I was on a wrong way in my judgement about my task. Best regards, Miguel Version Management vijayaramaraju14-Mar-02 1:31 vijayaramaraju 14-Mar-02 1:31  How do i make the VC++ compiler to generate a exe ith a new file version evrytime it compiles Thanks in advance - Vijay Re: Version Management Alexander Wiseman14-Mar-02 6:12 Alexander Wiseman 14-Mar-02 6:12  Visual C++ won't do it for you, so you need to pick up a macro or add-in which does it every time you build your project. There are a bunch of those here on CodeProject. Take a look at this link: Visual C++ Macro's and Add-Ins and on that page there are a bunch. For instance, here's the URL for one of them: Auto-Incrementing Build Numbers in Visual C++. Hope that helps! Sincerely, Alexander Wiseman Est melior esse quam videri It is better to be than to seem Memory DC Win2k can't work! RichardWdy14-Mar-02 1:19 RichardWdy 14-Mar-02 1:19  I have a program derived form CMemDC. It can work perfectly in Win98, but it doesn't work in win2k. What's the problem and how to solve it? class CMemDC : public CDC { private: CBitmap m_bitmap; CBitmap* m_oldBitmap; CDC* m_pDC; CRect m_rect; public: CMemoryDC(CDC* pDC, CRect rcClip) : CDC(), m_oldBitmap(NULL), m_pDC(pDC) { CreateCompatibleDC(pDC); pDC->GetClipBox(&m_rect); IntersectRect(m_rect, rcClip, m_rect); m_bitmap.CreateCompatibleBitmap(pDC, m_rect.Width(), m_rect.Height()); m_oldBitmap = SelectObject(&m_bitmap); SetWindowOrg(m_rect.left, m_rect.top); } ~CMemoryDC() { m_pDC->BitBlt(m_rect.left, m_rect.top, m_rect.Width(), m_rect.Height(), this, m_rect.left, m_rect.top, SRCCOPY); SelectObject(m_oldBitmap); } CMemoryDC* operator->() { return this; } operator CMemoryDC*() { return this; } }; Usage: { CWnd * pWnd = GetDlgItem (IDC_MY_PANEL); CDC * pDC = pWnd->GetDC(); CMemDC MemDC(pDC, m_rcDest); MemDC.FillSolidRect(&m_rcDest, RGB(255, 255, 255)); MemDC.DrawText("Display here", rectDest, DT_SINGLELINE|DT_NOCLIP|DT_CENTER|DT_VCENTER); ...... pWnd->ReleaseDC(pDC); } Windows2000 SP2, VC++ 6.0 SP5 Re: Memory DC Win2k can't work! Tomasz Sowinski14-Mar-02 1:32 Tomasz Sowinski 14-Mar-02 1:32  This has nothing to do with your problem, but why are you implementing operator-> and operator CMemoryDC* ? Tomasz Sowinski -- http://www.shooltz.com Re: Memory DC Win2k can't work! 567890123414-Mar-02 1:50 5678901234 14-Mar-02 1:50  Maybe the problem is that you write to window DC after it was released: pWnd->ReleaseDC(pDC); // now destructor CMemoryDC executes BitBlt Re: Memory DC Win2k can't work! 14-Mar-02 2:06 14-Mar-02 2:06  Thank you vrey much! I have solved it! Min Dialog Size NodeX14-Mar-02 0:29 NodeX 14-Mar-02 0:29  How to set minimal dialog size (width and height) ? NodeX Re: Min Dialog Size Tomasz Sowinski14-Mar-02 0:41 Tomasz Sowinski 14-Mar-02 0:41  Handle WM_GETMINMAXINFO. Do you have resizable dialog? Tomasz Sowinski -- http://www.shooltz.com Re: Min Dialog Size NodeX14-Mar-02 0:42 NodeX 14-Mar-02 0:42  Tomasz Sowinski wrote: Handle WM_GETMINMAXINFO. Do you have resizable dialog? Yes I have, thx very much NodeX The VC++6 Editor toolbars benjymous13-Mar-02 22:30 benjymous 13-Mar-02 22:30  Is there any way I can snapshot the toolbar layout in the editor, as it seems that I have to reposition them every couple of days, after VC decides to either squash all the toolbars into the left half of the window, or just randomly reorder them. Is there a single config file or registry entry somewhere which contains the toolbar positions which I could backup, and restore when my toolbars get scrambled? (Or has anyone else already written a tool to do this?) -- Help me! I'm turning into a grapefruit! Re: The VC++6 Editor toolbars 567890123413-Mar-02 23:06 5678901234 13-Mar-02 23:06  When Visual Studio makes such reposition, I open other instance of VS, close first instance and then second instance. Since VS writes toolbars state when it is closed, I restore by such way the normal state. I want to know how to copy the highlighted text? Pony13-Mar-02 20:37 Pony 13-Mar-02 20:37  Hello, I want to know how to copy the highlighted text to the clipboard (like pressing Ctrl+C) in my application using a button. What do I have to do after I map button control? The problem is the highlighted text is not only in my application but it's in the other application. (ex. browser, notepad, etc.) Help me, please. I have to finish my application within 4 days. Please... Re: I want to know how to copy the highlighted text? Mazdak13-Mar-02 21:03 Mazdak 13-Mar-02 21:03  I don't understand your problem completly,but maybe if you use RichEditView it helps you. Mazy "So,so you think you can tell, Heaven from Hell, Blue skies from pain,... How I wish,how I wish you were here." Wish You Were Here-Pink Floyd-1975 Re: I want to know how to copy the highlighted text? Jon Hulatt13-Mar-02 22:08 Jon Hulatt 13-Mar-02 22:08  Assuming you have a window handle, you can send the other window a WM_COPY message. Then, in theory, whatever was selected is in the clipboard and you can have a go at it. The other way to do it, in theory at least, would be to subclass the other app's window, and then use typical CWnd/CEdit functions to get the text (GetSel(), GetWindowText(), that kind of thing). Sorry to dissapoint you all with my lack of a witty or poignant signature. Re: I want to know how to copy the highlighted text? Pony13-Mar-02 23:56 Pony 13-Mar-02 23:56  Thank you very much. I've already send WM_COPY message but it doesn't work. There's nothing in the clipboard. ::SendMessage(m_hWnd, WM_COPY, 0, 0); I don't know why it doesn't work. Did I forget something? Guide me, please. Hlp with CoCreateInstance pls => 13-Mar-02 20:30 13-Mar-02 20:30  IADsNameTranslate *pNto; hr = CoCreateInstance (CLSID_NameTranslate,NULL,CLSCTX_INPROC_SERVER, IID_IADsNameTranslate,(LPVOID *)&pNto); if(FAILED(hr)) { ..... } CoCreateInstance always fail , HRESULT : 800401f0 any ideas ?? thanx Re: Hlp with CoCreateInstance pls => Mazdak13-Mar-02 20:57 Mazdak 13-Mar-02 20:57  adara wrote: LPVOID *)&pNto); Change it to this: ,(LPVOID **)&pNto); (two pointer) Mazy "So,so you think you can tell, Heaven from Hell, Blue skies from pain,... How I wish,how I wish you were here." Wish You Were Here-Pink Floyd-1975 Re: Hlp with CoCreateInstance pls => 13-Mar-02 21:07 13-Mar-02 21:07  Thanx for your reply , but steel no good "cannot convert parameter 5 from 'void *** ' to 'void ** '" Re: Hlp with CoCreateInstance pls => Mazdak13-Mar-02 21:19 Mazdak 13-Mar-02 21:19  Can't you use smart pointer?It is really better that this kind of using COM. Mazy "So,so you think you can tell, Heaven from Hell, Blue skies from pain,... How I wish,how I wish you were here." Wish You Were Here-Pink Floyd-1975 Re: Hlp with CoCreateInstance pls => M Jahangir13-Mar-02 21:55 M Jahangir 13-Mar-02 21:55  Call CoInitialize(NULL) Mustafa Jahangir BE Computer Systems NED University Re: Hlp with CoCreateInstance pls => Lim Bio Liong13-Mar-02 21:24 Lim Bio Liong 13-Mar-02 21:24  Hello adara, HRESULT value of 0x800401F0 means : "CoInitialize() has not been called." Make sure that you always call CoInitialize() at the beginning of any COM application. You can of course call CoInitialize() just before calling CoCreateInstance(). Note that even after calling CoInitialize() you may still get an error after the CoCreateInstance() API if there are any other genuine errors. However, failure to call CoInitialize() will definitely cause other COM APIs to fail. Hope the above helps, adara. Best Regards, Bio.

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