add file explorer to form

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  - 1
    - Question abt VTable?? Hi, Where VTable stores? VTable creating in the run time means, before constructor or after constructor??? Thanks in advance. Regards, -- DKDS.Naidu. Tag: add file explorer to form Tag: 255703
  - 2
    - to load a user's profile without logging in Hi everyone, Could anyone help me with the problem while unistallation. I want to delete entries from HKCU(HKUsers) corresponding to each and every user's account present on my local computer. Right now i am not able to load the ussers profile as i am using LoadUserProfile. The problem which i feel is that this function requires the token to a loggedon user(using LogonUser) , but i just want to load the profile without asking for the password. So is there any method of 1 ) Getting the user's account token without really asking for his password 2 ) Loading the users profile by any mechanism to make some changes to it without asking the user for the password. help on the above topic will be really appreciated. Thanks, Neo. Tag: add file explorer to form Tag: 255698
  - 3
    - Property sheet behaviour OnApply In a tabbed dialogue, I make changes on various PropertySheets and press Apply. The standard recommendation at this stage seems to be to send the PropertySheet a PSM_CANCELTOCLOSE message, which (despite its name) disables the cancel button and turns the OK button into Close. This seems crazy. For if I now make any more changes in the PropertySheets, there is no going back. The "Close" button accepts them and the "Cancel" button is no longer available. A far more sensible behaviour (which is sort of suggested by the name of the message) would be to change the "Cancel" button into "Close" and leave the "OK" alone. Question: *is* this more sensible or am I missing something. Of course I can implement this behaviour with SetWindowText() on the Cancel button, but as there is no message to do it automatically, I am in danger of getting the English text "Close" on the button no matter what the language of the user. I can avoid this (I reckon) by the slightly devious method in the PropertySheet: CString sOk; CString sClose; CWnd *pWndOk = GetDlgItem( IDOK ); CWnd *pWndCancel = GetDlgItem( IDCANCEL ); if( pWndOk && pWndCancel ) { pWndOk->GetWindowText( sOk ); // Get "OK" text SendMessage(PSM_CANCELTOCLOSE); // "Ok" -> "Close" pWndOk->GetWindowText( sClose ); // Get "Close" text. pWndCancel->SetWindowText( sClose ); // "Cancel" -> "Close" pWndOk->SetWindowText( sOk ); // Reset "Ok" -> "Ok" pWndCancel->EnableWindow(TRUE); // Don't disable cancel. } but doing so makes me feel a little unclean, as I am sneakily bypassing what Mr Gates tells me to do. Someone please tell me it's ok! Dave -- David Webber Author MOZART the music processor for Windows - http://www.mozart.co.uk For discussion/support see http://www.mozart.co.uk/mzusers/mailinglist.htm Tag: add file explorer to form Tag: 255697
  - 4
    - malloc() & page boundaries -- Difference between VC6 and VC7 CRT? I was wondering if anyone knew of any changes in the CRT that would cause malloc behavior to change between code built with VC6/VC7? We discovered a segfault bug in production code built with VC6 that was not crashing frequently at all. We fixed the bug, but in the meantime, our builds were in the process of being switched to VC7. In the VC7 built code, the same crash occurs much more frequently. This alarmed us, so we are investigating why VC7 behavior would differ so much from VC6. The nature of the bug is such that many small buffers (~16 bytes) are being malloc'd but the bug causes the code to read past the end of the buffer by 8 bytes. Straightforward, and this crashes whenever the address to the 17th byte lives on the next memory page which happens to not be allocated. The issue is in VC6 built code, this bug rarely occurs, almost as if the memory allocation never allocates that close to an invalid page, or never completely fills up an entire page. When the code is built in VC7, the crash occurs very, very frequently, as if the 16 bytes are being allocated at the end of the page prior to an invalid one. My question is if anything regarding malloc or the heap changed between VC6/VC7 that could be behind this. Do any of the compiler optimization flags affect malloc's ability to alloc up to the last available byte in a page? We have discovered the source of the bug in remote code and have fixed it, but we are questioning if it is safe to move to VC7 so quickly. Tag: add file explorer to form Tag: 255690
  - 5
    - Implementing Log In C++, what is the correct syntax to implement the expression of "10 log e"? Tag: add file explorer to form Tag: 255687
  - 6
    - LINK flag equivalent to -Bsymbolic I have a "C" shared library that statically links openssl and a "C" application that uses it also statically links openssl. I want to keep the two instances separate. On solaris and linux the -Bsymbolic flag to the linker for the shared library serves this purpose. Could someone let me know what the equivalent linker flag in for microsoft LINK linker. Tag: add file explorer to form Tag: 255686
  - 7
    - The Qsort I have the following: struct Books { string bookname; int bookid; }; ... Books Library[500]; Library is then filled by user, and ofcourse in not done in alphabetic order. So, what I want to do after inserting values into Library is sort it alphabetically by Library.bookname. How can I use the Visual C++ qsort built in to accomplish that. I have read the help file in visual for qsort but to tell you the truth I couldnt make much of it. I know that before calling the qsort, I have to first write a compare function. But really, more than that I dont know. Please Help Thanks in Advance Tag: add file explorer to form Tag: 255681
  - 8
    - inserting item into list view I have this code: <code> HWND hList = GetDlgItem(hDlg, IDC_LIST_CHARACTERS); LVCOLUMN column; // character column.mask = LVCF_TEXT|LVCF_WIDTH|LVCF_SUBITEM; column.pszText = "Character name"; column.cx = 200; column.iSubItem = 1; SendMessage(hList, LVM_INSERTCOLUMN, 0, (LPARAM)&column); // number of bones column.mask = LVCF_TEXT|LVCF_WIDTH|LVCF_SUBITEM; column.pszText = "Number of Bones"; column.cx = 90; column.iSubItem = 2; SendMessage(hList, LVM_INSERTCOLUMN, 0, (LPARAM)&column); LVITEM item; item.mask = LVIF_TEXT|LVIF_; item.pszText = "This is a test"; item.iItem = 0; item.iSubItem = 1; SendMessage(hList, LVM_INSERTITEM, 0, (LPARAM)&item); item.mask = LVIF_TEXT; item.pszText = "asdasdasdasd"; item.iItem = 1; item.iSubItem = 2; SendMessage(hList, LVM_INSERTITEM, 0, (LPARAM)&item); </code> When this finishes, there are no items listed in my list control. I have stepped through the code and everything looks fine except that the result from LVM_INSERTITEM is -1; This is weird, I can insert the columns, what would be wrong with the item? Anyone see a problem with this? Thanks for reading, Steve Tag: add file explorer to form Tag: 255672
  - 9
    - Question on Crypto API Hi, Using the Crypto API, we wrote a progam to store our company generated certificates and associated private and public key pair under the store location CERT_SYSTEM_STORE_CURRENT_USER and under the store name MY. When we access the SSL sites via IE, we noticed that our comapny certificates shows up on the Client authentication dialog box. Is there any way to set our certificates so that our company certificates does NOT get displayed on the Client authentication dialog box?. Thank you Tag: add file explorer to form Tag: 255669
  - 10
    - String Manipulations Can anyone provide information for how to retrieve the actual character string from a CString object? I am using the following code but it only returns the address of the string and not the literal characters of the string. I know it has to be something simple that I am overlooking but I have copied samples from MS that are supposed to work but give the same results CString strSports("Hockey is Best!"); TCHAR sz[1024]; lstrcpy(sz, strSports); cout << strSports ; If I follow documentation provided by Microsoft which states: // while this line will put the content of the string out: cout << (LPCTSTR) strSports; I still only receive the address of the CString object at the console. Please help! Tag: add file explorer to form Tag: 255664
  - 11
    - Will the following code assert: // headers... int main () { double d = 0; ASSERT (d == 0); } ? Or is it machine/[HW/SW]floating-point processing dependent? Might 1.0E-1024 be a convenient way to store zero on some machines? Is there any certainty with doubles of floats or do we 100% of the time have to call fabs with some precision spec? Thanks in advance, - Alan Tag: add file explorer to form Tag: 255661
  - 12
    - Dynamic allocation of 2D character array? I am trying to set up a 2D array of characters using 'new'. The following looks OK to me but is not accepted by the compiler: char *2d_array ; 2d_array = new char[10][100] ; Can anyone tell me the correct way to do this? Also, please tell me the correct syntax for deallocating the memory when it is no longer required. With thanks, Gerry Tag: add file explorer to form Tag: 255653
  - 13
    - about runtime lib hi, all, just curious, microsoft provides these six libs: 1) MT/d multi-thread, static link release and debug 2) MD/d multi-thread, dynamic link release and debug 2) ML/d single-thread, static link release and debug why isn't the single thread dynamic lib be provided? thanks Tag: add file explorer to form Tag: 255644
  - 14
    - Qsort not working I'm using qsort to sort an array of Doubles. However, it is not working. Does anyone know why? // Here is the compare function. int classA::compareValueByAscendOrder(const void* arg1, const void* arg2) { double* value_1 = (double*)arg1; double* value_2 = (double*)arg2; double delta_value = value_1 - value_2; if( delta_value < 0 ) { return -1; } else { if( delta_value > 0 ) { return 1; } else { return 0; } } } // Here is the calling function CArray<double, double> temp_array; temp_array.Add( 5 ); temp_array.Add( 3 ); temp_array.Add( 4 ); temp_array.Add( 2 ); qsort( temp_array.GetData(), temp_array.GetSize(), sizeof(double), compareValueByAscendOrder ); // After qsort, the array is not sorted. ===================== 5 3 4 2 after qsort 5 3 4 2 ===================== Tag: add file explorer to form Tag: 255643
  - 15
    - How will it new/allocate memory on windows2003 when a class have string-type members? HI,all I have a class named CCC which have some members of std::string type. I declare a class pointer like this: CCC* ccc = new CCC( xml_input ); then I send the ccc to another module within the process with msg_queue. then this lead to a error on windows 2003 platform, but it's works well on Redhat Linux 9.0. In addition, I find out the same binary execute file could work well on windows XP, but It faild on my windows 2003. I debug it, and It's assert when the object pointer ccc is released. what's the reason??? the error info on windows as follows: =============================================================== --------------------------- Microsoft Visual C++ Debug Library --------------------------- Debug Assertion Failed! Program: E:\works\server\debug\configer.exe File: dbgheap.c Line: 1132 Expression: _CrtIsValidHeapPointer(pUserData) For information on how your program can cause an assertion failure, see the Visual C++ documentation on asserts. (Press Retry to debug the application) =============================================================== Tag: add file explorer to form Tag: 255642
  - 16
    - systematic debugging of random freeze in debug mode My code contains a loop that has to perform calculations on data streamed from a circular buffer. The calculation has to be performed 50,000+ times (about 30 ms per cycle) spitting out a number after each cycle. The thing freezes in a poissonic manner (i.e. sometimes after 10 seconds of data aquizition, sometimes after 10 min of data aquizition, etc). I do have the debugger attached. The program just stops responding and I only can terminate it by "Debug->Stop debugging". There are no indiciations in the Debug output window which would warn me of the onset of the freeze. Since the freeze happens randomly, and I don't see any feedback in the debugger, I am puzzled how I can systematically debug this thing. Can anyone give a spepific advice on where I could start? Tag: add file explorer to form Tag: 255621
  - 17
    - visual c++ / write to cout in binary mode? Visual C++: How can I write to std::cout in binary mode? Helmut Tag: add file explorer to form Tag: 255614
  - 18
    - Preprocessor (cl -E) limits ? (Error C2018 ) Does anyone know why certain characters are permitted in a 8-bit source file when using cl -E and not others ? Example 1: ---------- #define Foo() Holà, Mundo! Foo() cl -E -P foo.c cat foo.i #line 1 "foo.c" Holà, Mundo! Example 2: ---------- #define ThreeQuarters() This is a ¾! ThreeQuarters() cl -E -P foo.c foo.c(2) : error C2018: unknown character '0xbe' This is not an UTF-8 limit problem ("Holà, Mundo!" is definitely NOT a valid UTF-8 sequence), so where's the problem? (note: yes, this is not a valid C source, but I'm just using the preprocessor) Version: Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 13.10.3077 for 80x86 Tag: add file explorer to form Tag: 255607
  - 19
    - How do I disp. "Local Area Connection Status" dialog programmatica Hi, I have to display "Local Area Connection Status" dialog through Win32 application. Manually, double click on "Local Area Connection" tray icon in the tray or START -> SETTINGS ->NETWORK CONNECTIONS ->Local Area Connection. I have tested with WINSPY.EXE tool, the class name of this window is #32770. So,I confirmed it's dialog box. How do I display this window/dialog box????? Thanks in advance. Regards, -- DKDS.Naidu. Tag: add file explorer to form Tag: 255601
  - 20
    - Ho to print increasing count in one line on command prompt Hi All, I have developed one Win32 Console Application. This application updates records in CSV file according to requirement. I want when user run this application through command prompt, he can see increasing number of modified records on screen during execution of application. That is user can see increasing count of modified records during execution in same line. Same as we see increasing percentage during format command. How can I achieve this? Tag: add file explorer to form Tag: 255599
  - 21
    - RegQueryValueEx(...) This is a multi-part message in MIME format. ------=_NextPart_000_000B_01C5EE2C.2C3AF440 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I am writing an NT service (Win32 Console App) to act as a scheduler. It = will launch another application at a determined time. I am storing the = name of the app and some parameters on when it is to be launched in the = registry. =20 I can retrieve registry entries that are stored as a DWORD with no = problem. The problem is when I try to read a string REG_SZ. The = following code just hangs when running as a service.=20 Note that if I run the same exact code below in an MFC app or a Win32 = Console App not as a service it retrieves the string with no problem. = The non-service console app and the service console app have the exact = same project settings and include files. BOOL GetRegyString(LPCTSTR pszKeyNm, LPCTSTR pszvalNm, LPTSTR = lpbyDataBuf, int nBufSize) { DWORD dwValType =3D REG_SZ; BOOL bSuccess =3D TRUE; HKEY hKey; if (OpenRegyKey(pszKeyNm, &hKey)) { strcpy(lpbyDataBuf,_T("Failed To Retrieve String From Registry")); if (RegQueryValueEx(hKey, pszvalNm, NULL, &dwValType, (LPBYTE) lpbyDataBuf, (LPDWORD) &nBufSize) =3D=3D ERROR_SUCCESS) { RegCloseKey(hKey); return bSuccess; } RegCloseKey(hKey); } return !bSuccess; } The Win32 Console App service code will run, but fail to get the string, = if I declare and set the following: DWORD dwBufSize; dwBufSize =3D sizeof(nBufsize); but will still hang with the following DWORD dwBufSize; dwBufSize =3D nBufsize; Not sure what is going on here. Thanks, Dave ------=_NextPart_000_000B_01C5EE2C.2C3AF440 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=3DContent-Type content=3D"text/html; = charset=3Diso-8859-1"> <META content=3D"MSHTML 6.00.2900.2769" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=3D#ffffff> <DIV><FONT size=3D2>I am writing an NT service (Win32 Console App) to = act as a=20 scheduler. It will launch another application at a = determined=20 time.  I am storing the name of the app and some parameters on when = it is=20 to be launched in the registry.  </FONT></DIV> <DIV><FONT size=3D2></FONT> </DIV> <DIV><FONT size=3D2>I can retrieve registry entries that are stored as a = DWORD  with no problem.  The problem is when I try to read a = string=20 REG_SZ.  The following code just hangs when running as a=20 service. </FONT></DIV> <DIV><FONT size=3D2></FONT> </DIV> <DIV><FONT size=3D2>Note that if I run the same exact code below in = an MFC=20 app or a Win32 Console App not as a service it retrieves the string with = no=20 problem.  The non-service console app and the service console app = have the=20 exact same project settings and include files.</FONT></DIV> <DIV><FONT size=3D2></FONT> </DIV> <DIV><FONT size=3D2></FONT> </DIV> <DIV><FONT size=3D2>BOOL GetRegyString(LPCTSTR pszKeyNm, LPCTSTR = pszvalNm, LPTSTR=20 lpbyDataBuf, int nBufSize)<BR>{<BR> DWORD dwValType =3D = REG_SZ;<BR> BOOL=20 bSuccess =3D TRUE;<BR> HKEY hKey;</FONT></DIV> <DIV> </DIV> <DIV><FONT size=3D2> if (OpenRegyKey(pszKeyNm,=20 &hKey))<BR> {<BR>  strcpy(lpbyDataBuf,_T("Failed To = Retrieve=20 String From Registry"));</FONT></DIV> <DIV> </DIV> <DIV><FONT size=3D2>  if=20 (RegQueryValueEx(hKey,<BR>       pszva= lNm,<BR>       NULL,<BR>  &n= bsp;    &dwValType,<BR>    &n= bsp;  (LPBYTE)=20 lpbyDataBuf,<BR>       (LPDWORD)=20 &nBufSize) =3D=3D ERROR_SUCCESS)</FONT></DIV> <DIV> </DIV> <DIV><FONT=20 size=3D2>  {<BR>   RegCloseKey(hKey);<BR> &= nbsp; return=20 bSuccess;<BR>  }</FONT></DIV> <DIV> </DIV> <DIV><FONT = size=3D2>  RegCloseKey(hKey);<BR> }<BR> return=20 !bSuccess;<BR>}</FONT></DIV> <DIV><FONT size=3D2></FONT> </DIV> <DIV><FONT size=3D2>The Win32 Console App service code will run, but = fail to get=20 the string, if I declare and set the following:</FONT></DIV> <DIV><FONT size=3D2></FONT> </DIV> <DIV><FONT size=3D2>DWORD dwBufSize;</FONT></DIV> <DIV><FONT size=3D2>dwBufSize =3D sizeof(nBufsize);</FONT></DIV> <DIV><FONT size=3D2></FONT> </DIV> <DIV><FONT size=3D2>but will still hang with the following</DIV> <DIV><BR> <DIV><FONT size=3D2>DWORD dwBufSize;</FONT></DIV> <DIV><FONT size=3D2>dwBufSize =3D nBufsize;</FONT></DIV> <DIV> </DIV> <DIV>Not sure what is going on here.</DIV> <DIV> </DIV> <DIV>Thanks,</DIV> <DIV> </DIV> <DIV>Dave</DIV> <DIV> </DIV> <DIV> </DIV></DIV></FONT></BODY></HTML> ------=_NextPart_000_000B_01C5EE2C.2C3AF440-- Tag: add file explorer to form Tag: 255589
  - 22
    - WM_CLOSE hi i wrote a small program that runs a timer to look for windows of a specific class. The window belongs to another program. When the window exists i need to kill it. I know i cant use WM_DESTROY because its another thread. So i tried WM_CLOSE but the other program crashes. The window i send a WM_CLOSE to is a popup , not the main window of the other application. Am i supposed to do something extra , like another message or something ? thanks Tag: add file explorer to form Tag: 255586
  - 23
    - Warning? Hello, I am trying one of my very first windows program and I am getting the following warning: c:\DATASOURCE_EXTRA\Programming\VC++CodeTesting_WINDOWS\TESTING_CPZ\HangTheMan_ProgTest1\HTM.C(51) : warning C4244: 'return' : conversion from 'WPARAM' to 'int', possible loss of data Here is my code: #include <windows.h> #include "HTM.h" LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM); const int NUMLINES = (sizeof Words) / (sizeof Words[0]); //My functions void DrawOptions(HDC,HWND,BOOL,BOOL,int); int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInnstance, PSTR szCmdLine, int iCmdShow) { static TCHAR szAppName[] = TEXT ("HTM"); HWND hwnd; MSG msg; WNDCLASS wndclass; wndclass.style = CS_HREDRAW |CS_VREDRAW; wndclass.lpfnWndProc = WndProc; wndclass.cbClsExtra = 0; wndclass.cbWndExtra = 0; wndclass.hInstance = hInstance; wndclass.hIcon = LoadIcon (NULL, IDI_APPLICATION); wndclass.hCursor = LoadCursor (NULL, IDC_ARROW); wndclass.hbrBackground = (HBRUSH) GetStockObject(WHITE_BRUSH); wndclass.lpszMenuName = NULL; wndclass.lpszClassName = szAppName; if (!RegisterClass (&wndclass)) { MessageBox (NULL, TEXT ("xxx"),szAppName, MB_ICONERROR); return 0; } hwnd = CreateWindow (szAppName, TEXT ("HTM ! "), WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, NULL, NULL, hInstance, NULL); ShowWindow(hwnd, iCmdShow); UpdateWindow (hwnd); while (GetMessage (&msg, NULL, 0, 0)) { TranslateMessage(&msg); DispatchMessage(&msg); } return msg.wParam; } LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam) { static int cxChar, cxCaps, cyChar, cxClient, cyClient; HDC hdc; static int i; PAINTSTRUCT ps; TCHAR szBuffer[10]; TEXTMETRIC tm; static int ColorTYPE = 1; switch (message) { case WM_CREATE: hdc = GetDC (hwnd); GetTextMetrics (hdc, &tm); cxChar = tm.tmAveCharWidth; cxCaps = (tm.tmPitchAndFamily & 1 ? 3 : 2) * cxChar / 2; cyChar = tm.tmHeight + tm.tmExternalLeading; ReleaseDC (hwnd, hdc); return 0; case WM_SIZE: cxClient = LOWORD(lParam); cyClient = HIWORD(lParam); return 0; case WM_PAINT: hdc = BeginPaint (hwnd, &ps); //MESSAGE BOARD COLORS DrawOptions(hdc,hwnd,TRUE,TRUE,ColorTYPE); for (i = 0; i < NUMLINES; i++) { TextOut (hdc,0,cyChar * i,Words[i].szWord, lstrlen(Words[i].szWord)); TextOut (hdc,20 * cxChar,cyChar * i,szBuffer, wsprintf(szBuffer,TEXT("%2d"),Words[i].iWLenght)); } EndPaint (hwnd, &ps); return 0; case WM_DESTROY: PostQuitMessage (0); return 0; } return DefWindowProc (hwnd, message, wParam, lParam); } void DrawOptions(HDC hdc,HWND hwnd,BOOL b_OPAQUE, BOOL b_GRAYBRUSH,int i_ColorTYPE) { //Windows objects HBRUSH hBrush; //CHOICE OF OPAQUE OR TRANSPARENT if (b_OPAQUE == TRUE) {SetBkMode(hdc,OPAQUE); SetBkColor(hdc,0);} else {SetBkMode(hdc,TRANSPARENT); SetBkColor(hdc,22000);} //CHOICE OF COLOR TYPE if (i_ColorTYPE == 1) {SetTextColor(hdc,65535);} else if (i_ColorTYPE == 2) {SetTextColor(hdc,16777215);} else if (i_ColorTYPE == 3) {SetTextColor(hdc,9999);} //SELECT BRUSH COLOR if (b_GRAYBRUSH == TRUE) {hBrush = (HBRUSH) GetStockObject(GRAY_BRUSH);} else {hBrush = (HBRUSH) GetStockObject(WHITE_BRUSH);} //SELECT THE BRUSH INTO THE DEVICE CONTEXT SelectObject(hdc,hBrush); //DISPLAY RECTANGLE Rectangle(hdc,0,0,300,300); } I have seen this warning before, but now I don't know how to get rid of it ! Please help, anyone, Ross Tag: add file explorer to form Tag: 255575
  - 24
    - Does Prog. cause Defragmentation Hello, It has been approximately 4 months that I have been compiling C, C++ and VC++ programs as learning examples. I may have approximately 140 programs on my machine. However it is lately that my computer has a very difficult time defraging. I mean, I leave defrag on all night and in the morning it only accomplished say, 12%. Can this be due to all the VC++ compiling which is tremendously fragmenting my hard drive? All suggestions appreciated! Ross Tag: add file explorer to form Tag: 255570
  - 25
    - Some strange error Hi, I defined a POINT object but VS.NET 2002 doesn't recongnize it. #include <windows.h> : : POINT aPoint2; c:\Documents and Settings\luckie\MFCSimV7_1\CMyApp.cpp(63): error C2065: 'aPoint2' : undeclared identifier void CMyApp::Render2D() { RECT rect; POINT aPoint2; <-error C2065 rect.left = 0; rect.top = 0; rect.bottom = 480; rect.right = 640; aPoint2.x = 0; aPoint2.y = 0; HDC hTempDC = CreateCompatibleDC(0); CoyDCToSurface (m_pBackBuffer, &aPoint2, g_hGDIBitmapDC, g_hGDIBitmap, 0, -1); } Thanks Jack Tag: add file explorer to form Tag: 255567
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  - 1
    - how to play two movies synchronously in one computer? (in direct x) Hi, I need to play two films on a PC,both of them to be played quite synchronously. I have two IMediaControl, each for a film and I do start them just one after the other. But there is a delay between the two. the delay is different, maybe 1 ms maybe 15 ms. Is there any solution for a better timing ? thanks, Behzad Tag: add file explorer to form Tag: 255565
  - 2
    - Preparing for 64 bit windows I'd like to canvass opinions on style. I am preparing assorted DLLs for 64 bit windows by switching on the flag which puts out warnings about type mismatches etc. Of course I am getting lots of them. Mostly from just a few sources - schematically: int n = strlen(....); int n = ptr1 - ptr2; int n = vector.size(); Now most of the arrays I am dealing with are highly unlikely to be bigger than 128 elements, and bigger than 2^31 elements is inconceivable. [Instructions on music like "Andante", "Allegro", just do not run to tens of thousands of characters each!] But I like my code to compile without warnings. So I have a choice of two ways to go: 1. Use the "proper" types. size_t n = strlen(); INT_PTR n = ptr1 - ptr2; etc. This populates my code with variables of type "size_t", "INT_PTR", "UINT_PTR" and so forth and so on. What was a simple bit of integer arithmetic starts to look very ugly on the page, and is far less readable. 2. Put in explicit casts int n = (int)strlen(....); int n = int(ptr1 - ptr2); etc. Now I don't like all sorts of unnecessary casts around either (even though I am happy in general that avoiding compiler warnings when "downsizing an integer type" is a perfectly good reason for them). Either way the code starts to look a lot messier. Any views on which is better? Alternatives? Dave -- David Webber Author MOZART the music processor for Windows - http://www.mozart.co.uk For discussion/support see http://www.mozart.co.uk/mzusers/mailinglist.htm Tag: add file explorer to form Tag: 255563
  - 3
    - Refresh the system tray I have created an application to end a specific program at a specific time each day. The application I am ending is not mine and I cannot modify it. When it starts, it is minimized to the system tray. When my application ends it, the icon is still in the system tray until the mouse pointer is pointed on the system tray. I have tried to investigate the Shell_NotifyIcon function, but since the application is not mine, I do not know the taskbar ID of the application. This seems to be a required piece of information for the function. Is there any other way to do a general refresh of the system tray (similar to what happens when the mouse pointer is on the system tray) programatically? Any help is appreciated. Thanks, AJ Tag: add file explorer to form Tag: 255556
  - 4
    - rebuilding dependent dlls - proper dependency? Hi, we have a complicated mesh of dependent dlls. Whenever we change anything in A.dll's objects, everything that links against its import lib A.lib gets rebuilt. This takes ages, and it seems very inefficient. Obviously, when changing any exported signature / symbol in any of A.dll's objects (read: a header change), we'll have to rebuild everything that depends on A.dll. But what if we only change the source? Is there a smarter way to decide when re-building the dependent dlls is necessary, than just the time stamp of A.lib? Is it sufficient to check for the time stamp of the objects' headers? Thanks for insight / ideas! Cheers, Axel. NB: I have the feeling "vc.language" is not the proper group - but I cannot think of a better one... Tag: add file explorer to form Tag: 255553
  - 5
    - 'bool' : undeclared identifier What do I need to do to make my VC 6.0 recognize bool? Tag: add file explorer to form Tag: 255550
  - 6
    - Weird First-chance exceptions and ODBC Hi all, I'm getting some very weird first-chance exceptions when I use the ODBC functions in my C program. It goes like this. void a(...) { // do some ODBC stuff: connect, run some queries, disconnect b(...) } The problem occurs when I call b. Immediately as its called, in the disassembly window the instruction is a push ebp, a first-chance exception is generated (of type 0xC0000005) saying that an instruction was failing to read address 0xfffffff4. As well an assertion is generated saying _CrtIsValidHeapPointer was invalid. Since i'm only calling a function and only a push ebp was performed how the heck does the program a. generate an exception and b. call _CrtIsValidHeapPointer ??? These types of things seem to occur exclusively to me when we try and use the ODBC functions. If we take those out these exceptions are not generated. Has anyone else experienced this or know a solution??? Tag: add file explorer to form Tag: 255548
  - 7
    - VC 6.0 and ClearCase We encounter a very bad performance when using VisualStudio together with the ClearCase version control system. VS permanently seems trying to synchronize or so. Especially the VC debugger is a pain. This problem doesn't occure when using WinDbg. Is there a setting in VS? Tag: add file explorer to form Tag: 255543
  - 8
    - Class and instances (Stack overflow) No. of class instances too big, x5000xmany bytes each stack overflows and crashes How do I create class instance on the heap? Thanks Jack Tag: add file explorer to form Tag: 255539
  - 9
    - Reboot a PC witch VC code Hi there, how i can write a c or c++ source to reboot a win 98 pc. I found this but doesn't work. Thanks. #define MAGIC 0 /* for cold restart */ /* #define MAGIC 0x1234 /* for warm restart */ #define BOOT_SEG 0xffffL #define BOOT_OFF 0x0000L #define BOOT_ADR ((BOOT_SEG << 16) | BOOT_OFF) #define DOS_SEG 0x0040L #define RESET_FLAG 0x0072L #define RESET_ADR ((DOS_SEG << 16) | RESET_FLAG) main() { void ((far *fp)()) = (void (far *)()) BOOT_ADR; *(int far *)RESET_ADR = MAGIC; (*fp)(); } Tag: add file explorer to form Tag: 255537
  - 10
    - Register for .NET Event in MFC C++ (How?) Folks, I have a C# .NET Assembly that is called from an MFC C++ application. The assembly is marked as COM visible so I'm accessing the assembly from MFC C++ via COM. Everything works great but here is my question: I need to create an event in the .NET Assembly and have the MFC C++ application register for this event and handle the event. Can anyone provide an example or a link for doing this? Any help would be appreciated. Thanks in advance, -- Anthony Yott Tag: add file explorer to form Tag: 255530
  - 11
    - Enumerating SQL Server database tables rows and sprocs using MFC Hi, I've been looking around for a while now after an efficient way to enumerate tables, rows and sprocs of a MsSQL database. The best I could come up with was SQL DMO, but one cannot have it installed without installing SQL Server itself or MSDE, so I'm looking for alternative. After a table name was fetched, I will need to know the rows it contains, what type they are, and what are the indexes and identity defined for this table. Effectively, if I could somehow get the CREATE SQL statement from the DB itself that would be ideal. Also, I will need a way to get the sprocs code from the DB, and all that without having any prequisites on either sides - client and server. I'm using VC++ with MFC. No managed C++ or .NET, unless I can use the algorythm in an unmanaged enviroment. Any links, articles, replies and sample code would be highly appreciated. Thanks in advance, Stilgar. Tag: add file explorer to form Tag: 255519
  - 12
    - try/catch -> better way to do. Hi all, I have one class that derive of onother, and I can put try/catch to work. I did this: class ex{ public: ex(const string& s){ ss = s; } string ss; }; class A { public: void _do(){ throw ex("err"); } }; class B : public A { public: void _do2(){ try { _do(); } catch (ex& e) { cout << "e.ss:" << e.ss << endl; throw ex("err b"); } } }; int _tmain(int argc, _TCHAR* argv[]) { B b; try { b._do2(); } catch (ex& e) { cout << "_tmain:" << e.ss << endl; } return 0; } My question is: I have one throw in first class, and one try in other class, I can throw again in this class, this is correct way, I can have: try { _do(); } catch (ex& e) { cout << "e.ss:" << e.ss << endl; throw ex("err b"); // <<---------------------------------- } thanks Tag: add file explorer to form Tag: 255510
  - 13
    - Query related to embed MS WORD with SDI MFC app? Hi All, I am developing an Windows explorer type SDI application using MFC . In the list view of my application i have to open up an WORD(.doc) file depending on the user choice. For this i have selected the <container> radio button in the MFC App Wizard step 3 of 6. Now for the purpose of opening the WORD file in the list view, i have used OLE Programming to embed MS WORD in my application. I was also required to remove the menu & toolbar of MS - WORD. For this i have used the dll <MSO.dll> & type library <MSWORD.olb>. so far so good. The word file is successfully opened in the list view along with the menu & the toolbar removed. BUT, doing all this has also removed the menu & toolbar of my SDI application. I DONOT UNDERSTAND Y MY APPICATION'S MENU & TOOLBAR ARE BEING REMOVED. If required i can also post the code. Waiting for suggestions. Best Regards Tag: add file explorer to form Tag: 255507
  - 14
    - Double-checked-locking patterns - BUG Hi all, Recently I read about one error (BUG) in pattern Double-checked-locking (singleton for multithread). This is true? If yes, what's the alternative to Double-checked-locking in multithread environment? Anyone know about this? Thanks Tag: add file explorer to form Tag: 255506
  - 15
    - Singleton destruction within a DLL Hello group, I have got a Meyer's singleton within a DLL. This singleton creates a worker thread when it is constructed. The desctructor code for the singleton properly shuts down the worker thread, but when the destructor is run, the worker thread as already been forcibly terminated, leaving the singleton' internal data in an unknown state. I have digged a bit in the CRT source code, and I came up with an explanation for this behaviour. When the main exits, the following happens (source code refrences are for VC2003) : - exit is called (crt0.c, line 265). - In exit, the destructors for globals/statics of the exe, and functions registered with atexit/oneexit are executed (crt0dat.c, lines 352-387). - ExitProcess is called (crt0dat.c, line 414). - Inside ExitProcess and according to MSDN, first all threads except the calling one are *TERMINATED* (they do not get a chance to terminate gracefully!), then each DLL receives a DLL_PROCESS_DETACH. - Inside the DLL_PROCESS_DETACH handler in the DLL (crtdll.c, lines 192-236), the destructors for globals/statics of the DLL and atexit/onexit handlers are called, but it is too late, all threads have already been killed! So my question is : why does ExitProcess terminate all threads *before* calling the DLL's DLL_PROCESS_DETACH handlers? I am looking for a good solution to this problem, but the only way I can think of would be to have an atexit handler registered within the exe (and not within the DLL), an doing my cleanup in this handler, but I cannot think of a way to do this registration. To make matters worse, in my real app, my exe is written in C# (although I do not believe this changes anything to the problem : CorExitProcess calls ExitProcess, which will have the same behaviour of destroying threads before calling DLLs' PROCESS_DETACH handlers). Any suggestion to make this pattern (singleton within a DLL, creating a worker thread that needs to be clean-up properly) work is welcome! Arnaud MVP - VC Tag: add file explorer to form Tag: 255505
  - 16
    - how can I determine on runtime if the OS supports unicode ? Win Xp Home Edition support unicode or not ? I'v compilled a "basic window application" with VC2005 and it runs on Profesional, but on Home Edition failes with "This application has failed because the application configuration is incorect. Reinstalling the applicaton may fix this problem". many thanks Tag: add file explorer to form Tag: 255504
  - 17
    - Secure CRT questions How does one create a reusable piece of code that uses the secure crt functions and have that code compile on VC++ 2003 and 2005? My understanding is that the secure crt functions are only available when using the VC++ 2005 compiler. So when compiling in an older compiler, it would be ideal if the secure crt functions would compile as the deprecated versions. I could feasibly make macros around _MSC_VER, but I'm hoping that's already been done. Please help. The following function, as of now, only compiles on VC++ 2005. What should I do to get it to compile on VC++ 2003? #define BUFFER_SIZE 1024 void MyFunction() { TCHAR szBuffer1[ BUFFER_SIZE ]; TCHAR szBuffer2[ BUFFER_SIZE ] = TEXT("Example string"); strcpy_s( szBuffer1, BUFFER_SIZE, szBuffer2 ); } Thanks, Nollie Tag: add file explorer to form Tag: 255499
  - 18
    - Can anyone suggest me the best book or any other directions to start with VC++. Hi, I have a sound knowledge of C++. Can anyone suggest me the best book or any other directions to start with VC++. Ankit Tag: add file explorer to form Tag: 255494
  - 19
    - Please Suggest Best BOOK for a VC++ beginner Hi, I have a sound knowledge of C++. Can anyone suggest me the best book or any other directions to start with VC++. Ankit Tag: add file explorer to form Tag: 255493
  - 20
    - How to use "cout" for wide char ? Hi: Could you tell me how to use cout to output a wide char string ? Thanks in advance! Polaris Tag: add file explorer to form Tag: 255491
  - 21
    - Bug: anonymous namespace extern const with precompiled headers Compile the following using: cl /Ycfoo.h /c /Fpfoo.pch bar.cpp cl /Fa /Yufoo.h /Fpfoo.pch /c foo.cpp type foo.asm You'll see that foo.asm does not contain a definition for x from the anonymous namespace. Compiling instead with: cl /Fa /c foo.cpp type foo.asm You'll see that this version (compiled without using precompiled headers) produces the correct result. Changing "const x" to "x" in the source code also produces the right result when using precompiled headers. -------------------------------------------------------------------------------- Precompiled header (foo.h): #ifndef FOO_H #define FOO_H namespace { extern const char* x; } const char* const* z = &x; #endif -------------------------------------------------------------------------------- Precompiled header source (bar.cpp): #include "foo.h" -------------------------------------------------------------------------------- Source (foo.cpp): #include "foo.h" namespace { const char* x = "X"; } Tag: add file explorer to form Tag: 255487
  - 22
    - Image retrieval in IE's browser cache (Win32) I use the procedure at the link below to take an HWND and get it as an IHTMLWindow2/Doc object: http://support.microsoft.com/kb/q249232/ I essentially get a IHTMLWindow2 object, IHTMLDocument2 object, etc.. from an HWND of an internet explorer process. You can think of it as "hooking", but it probably isn't true hooking since I'm not altering any normal calls with my own. Now, I got some image recognition code I want to use with some browser input. I don't want to use URLDownloadToFile(); because of a nasty little server protection I'm faced with: The webserver deletes the image after its downloaded! This means I only get ONE shot at the file, and URLDownloadToFile() generates a separate access attempt (after Internet Explorer's access attempt) -- which won't work for my .... very specializationed situation. The image will be gone. However, IE should still have the image in cache, or in RAM, or wherever it is when it blits to the screen in my browser frame. :) I searched my Temporary Internet Files and didn't find it there... What I need to do is find the name of a function to fetch that little image out of IE and save it to disk. The closest I came to was something like this: CComPtr<IHTMLDocument2> spDoc2; VARIANT sVar; VARIANT_BOOL bUnused; BSTR bstrCommand; sVar.vt = VT_BSTR; sVar.bstrVal = ::SysAllocString(L"C:\\file.test"); bstrCommand = ::SysAllocString(L"SaveAs"); spWin2->get_document(&spDoc2); spDoc2->execCommand(bstrCommand, VARIANT_FALSE, sVar, &bUnused); ::SysFreeString(sVar.bstrVal); ::SysFreeString(sCmd.bstrVal); -- However, god bless Microsoft, SaveAs.... doesn't work =-) They admit it so in MSDN KB244757. I am willing to try orthodox or unorthodox solutions alike. Some function names or DLL names of things I could use are proably what I'm looking for. However, if anyone knows if I could make a memory pointer and start walking up the address space to umm... grab... the data from IE's, memory, that should work as well :) Tag: add file explorer to form Tag: 255483
  - 23
    - Another unhandled exception I get the following error message when I close my application: Unhandled exception at 0x7c22df1f (mfc71d.dll) in ClientV0.exe: 0xC0000005: Access violation reading location 0xcccccccc When the error occurs it breaks at the following line in wincore.cpp (CWnd): bResult = m_pCtrlSite->DestroyControl(); If I do a watch on the COleControlSite object m_pCtrlSite it says its value is 0xcccccccc. Any ideas? How should I debug this because I don't know where to set a break in my code in order to see which line of *my* code precedes the crash? Tag: add file explorer to form Tag: 255470
  - 24
    - VC++ 2005: How to compile for Win98? I'm new to VC++ 2005, and I have just noticed that by default, it compiles programs that do not run on Windows 98. For the Debug build, get an error box "A required .dll file, msvcr80d.dll, was not found." For the Release build, the missing file is msvcr80.dll. I am compiling using MBCS not UNICODE. Other than the character set, I know very little about compiler settings. Is it possible to compile programs that run on Windows 98? If so, how do I do it? Also, is it possible to build programs that run on Windows 98 and use the new security-enhanced CRT functions? Where can I find documentation on these topics? Thanks, Nollie Tag: add file explorer to form Tag: 255467
  - 25
    - Displaying CInternetException error in MessageBox I have a class that deals with HTTP communication and it catches a CInternetException. I want to be able to display the exception error message in a messagebox. However for some reason I can't even get MessageBox() to work... never mind get the error message into it! I currently get the error ClientProxy.cpp(111) : error C2660: 'MessageBoxA' : function does not take 1 arguments /* CODE SNIPPET */ CATCH(CInternetException, pEx) { MessageBox("Exception"); } END_CATCH Tag: add file explorer to form Tag: 255464

Hi
I am trying to add a panel to my windows form, and in it have basically
a windows explorer control, which will allow users to navigate to a
file that they want to use for input. I am able to add an
openFileDialog but I cannot find how to make the explorer a permanent
part of the form.

thanks

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Re: add file explorer to form by tomi

tomi
Wed Nov 23 13:09:41 CST 2005

Hi

I probably have bad news for you .. but i don't think that's possiblr.
You'd have to override almost whole controls methods. It is a dialog
not a control ... sorry ;(

Tomi

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Re: add file explorer to form by Zenonk

Zenonk
Wed Nov 23 14:04:48 CST 2005

Fair enough, thanks for the help. I really didn't see a need for it
anyways, but the old Unix design had it and now that I am porting it to
windows I was asked to replicate it as exactly as possible.

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