How to convert unsigned char __gc[] to char[]

Visual C++ Language

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  - 1
    - LNK2028 errors I get the following errors when migrating from 2003 to 2005 Util.obj : error LNK2028: unresolved token(0A00003C) "extern "C" int __stdcall GetFileVersionInfoA(char const *,unsigned long,unsigned long,void *)" ( GetFileVersionInfoA@@$$J216YGHPBDKKPAX@Z) referenced in function"class EZString __cdecl getFileVersionString(char const *)" ( getFileVersionString@@$$FYA AVEZString@@PBD@Z) Util.obj : error LNK2028: unresolved token(0A000068) "extern "C" unsigned long __stdcall GetFileVersionInfoSizeA(char const *,unsigned long *)" ( GetFileVersionInfoSizeA@@$$J18YGKPBDPAK@Z) referenced in function"class EZString __cdecl getFileVersionString(char const *)" ( getFileVersionString@@$$FYA AVEZString@@PBD@Z) Util.obj : error LNK2028: unresolved token(0A00007D) "extern "C" int __stdcall VerQueryValueA(void * const,char *,void * *,unsigned int *)" ( VerQueryValueA@@$$J216YGHQAXPADPAPAXPAI@Z) referenced in function"class EZString __cdecl getFileVersionString(char const *)" ( getFileVersionString@@$$FYA AVEZString@@PBD@Z) SceneNode.obj : error LNK2028: unresolved token(0A0004D7) "int __cdecl operator==(class EZString const &,class EZString const &)" ( 8@$$FYAHABVEZString@@0@Z) referenced in function"public: class CSceneNode * __thiscall CSceneNode::findNodeRecursive(char const *)" ( findNodeRecursive@CSceneNode@@$$FQAEPAV1@PBD@Z) ImpGameApp.obj : error LNK2001: unresolved external symbol"class CElement * __cdecl funcCreateElementCTriggerCircle(int,int,int &)" ( funcCreateElementCTriggerCircle@@YAPAVCElement@@HHAAH@Z) ImpGameApp.obj : error LNK2001: unresolved external symbol"class CElement * __cdecl funcCreateElementCNavPath(int,int,int &)" ( funcCreateElementCNavPath@@YAPAVCElement@@HHAAH@Z) Util.obj : error LNK2019: unresolved external symbol"extern "C" int __stdcall VerQueryValueA(void * const,char *,void * *,unsigned int *)" ( VerQueryValueA@@$$J216YGHQAXPADPAPAXPAI@Z) referenced in function"class EZString __cdecl getFileVersionString(char const *)" ( getFileVersionString@@$$FYA AVEZString@@PBD@Z) Util.obj : error LNK2019: unresolved external symbol"extern "C" int __stdcall GetFileVersionInfoA(char const *,unsigned long,unsigned long,void *)" ( GetFileVersionInfoA@@$$J216YGHPBDKKPAX@Z) referenced in function"class EZString __cdecl getFileVersionString(char const *)" ( getFileVersionString@@$$FYA AVEZString@@PBD@Z) Util.obj : error LNK2019: unresolved external symbol"extern "C" unsigned long __stdcall GetFileVersionInfoSizeA(char const *,unsigned long *)" ( GetFileVersionInfoSizeA@@$$J18YGKPBDPAK@Z) referenced in function"class EZString __cdecl getFileVersionString(char const *)" ( getFileVersionString@@$$FYA AVEZString@@PBD@Z) SceneNode.obj : error LNK2019: unresolved external symbol"int __cdecl operator==(class EZString const &,class EZString const &)" ( 8@$$FYAHABVEZString@@0@Z) referenced in function"public: class CSceneNode * __thiscall CSceneNode::findNodeRecursive(char const *)" ( findNodeRecursive@CSceneNode@@$$FQAEPAV1@PBD@Z) I have tried the following without any success 1. Checking that I have the additional dependencies included: kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib 2. checked the “inherit from parent or project defaults” option 3. looked up the function GetFileVersionInfoA in winver.h and added extern “C” in front of the declaration: BOOL APIENTRY GetFileVersionInfoA( __in LPCSTR lptstrFilename, __in DWORD dwHandle, __in DWORD dwLen, __out_bcount(dwLen) LPVOID lpData ); Any suggestions Or are the implementations of winver.h in some lib that I have not included Tag: Visual C++ Language How to convert unsigned char __gc[] to char[] Visual C++
  - 2
    - call function in a C# class from a project created in Visual Studio C++ Hello I have created a project in C++ an added an other project to the solution. This is a C# class library. What i want to do is to call a function in my C# library from my C++ code. Does anyone know how to do this I'm rather new at programming in C++. I have added a reference to the C# class library, but now I'm blank. Don't know where to go next. Are there a kind person out there that can help me with this Regars, Thore Tag: Visual C++ Language How to convert unsigned char __gc[] to char[] Visual C++
  - 3
    - How to generate a standalone EXE file out of a VS 2003 project Hi Now I am using Visual Studio .Net 2003 to design a software. Is there a way to generate a standalone .exe file that is independent of Visual Studio I mean the generated .exe file should be able to run even if the user has not installed any VS. Thanks a lot in advance! Tag: Visual C++ Language How to convert unsigned char __gc[] to char[] Visual C++
  - 4
    - Deadlocks because of indirect calls to SendMessage. Hi, I have a thread which continuously updates a list view in a dialog. There is a critical section when the user clicks on a menu which performs actions on the list view, so I lock a mutex in the WindowProc and in the thread. The problem is that a deadlock occurs because the thread indirectly calls SendMessage (through functions like SetItemText), and this function doesn't return until the message is processed, but the message can't be processed because the WindowProc function is blocked, waiting for the mutex. I know, I read a lot of forum posts on the Internet, and they all tell the same thing: I most call PostMessage instead of SendMessage. But the thread calls SendMessage _indirectly_, I can't call PostMessage instead. Furthermore, my boss keeps telling me that there is a way to do it without calling PostMessage. He talked about an "update" function. Can you help me out please Tag: Visual C++ Language How to convert unsigned char __gc[] to char[] Visual C++
  - 5
    - Reading a USB HID device I have a console device that connects to a USB port via USB-HID and uses the hid.dll driver. The console device generates keystrokes. I would like to write a program that reads the keystrokes generated by the console device. If I write a Windows program that traps WM_KEYDOWN it works fine, but the program must have focus. So if I can read the usb-hid device directly, the program doesn't need focus. I have tried trapping the keyboard, but there are latency issues. Any suggestions Tag: Visual C++ Language How to convert unsigned char __gc[] to char[] Visual C++
  - 6
    - GDI+: intersection with bezier curves? Hi, Can anyone tell me/direct me to links on how to detect if a mouse click (or some coordinate) is within a drawn Bezier curve I'm currently drawing a bunch of them on a form, and would like to know if there's anyway at all to find out if a mouse-click event has occured, and which curve was selected. Thanks. using: Visual C++ 2003 Tag: Visual C++ Language How to convert unsigned char __gc[] to char[] Visual C++
  - 7
    - unmanaged app crashing at startup with IJW dlls I'm trying to add a C++ managed dll to an existing unmanaged application. The dll is an MFC extension dll with CLR enabled. When this dll loads with my exe the application crashs with the following callstack (in debug !) . I tryed to load the dll in an other project and everything is fine. I did had the Loader lock issue at the beginning but a coucle #pragma managed solved the problem. Does anyone has some insight on crash when mixing managed and unmanaged code or place to look for info The odd thing is that you can see a reference to some of my code in the callstack but it is somewhere completly irrelevant and it changes on each execution, making me think about some memory scratching. At least if you know where i could put a breakpoint to get deeper into the initialization process and be able to go step by step Everything is happening before I enter DllMain in my dll or my WinApp constructor. Thank you in advance. Regards 039041b8() ntdll.dll!7c9111a7() [Frames below may be incorrect and/or missing, no symbols loaded for ntdll.dll] ntdll.dll!7c92cbab() ntdll.dll!7c936a44() ntdll.dll!7c936abe() ntdll.dll!7c92402e() ntdll.dll!7c929bd3() ntdll.dll!7c929b78() ntdll.dll!7c97e0d4() ntdll.dll!7c95a5d0() ntdll.dll!7c936abe() ntdll.dll!7c929ba0() ntdll.dll!7c94382a() ntdll.dll!7c936abe() ntdll.dll!7c9368ad() ntdll.dll!7c92056d() ntdll.dll!7c920833() ntdll.dll!7c920895() ntdll.dll!7c92e10b() ntdll.dll!7c920833() ntdll.dll!7c91dec2() ntdll.dll!7c92e227() ntdll.dll!7c91d9eb() ntdll.dll!7c92e248() ntdll.dll!7c9435d9() ntdll.dll!7c943575() ntdll.dll!7c92d9cb() > IAMAPP.exe!QDT:: SINT:: DIALOG_AUTOMAT:: Process() Line 316 + 0x3f bytes C++ ntdll.dll!7c92d99d() ntdll.dll!7c92d944() ntdll.dll!7c92c8a6() ntdll.dll!7c929aeb() ntdll.dll!7c932370() ntdll.dll!7c924481() ntdll.dll!7c931639() ntdll.dll!7c92a120() ntdll.dll!7c932c66() ntdll.dll!7c91eac7() kernel32.dll!7c810665() Tag: Visual C++ Language How to convert unsigned char __gc[] to char[] Visual C++
  - 8
    - 'MSVCRTD.lib' Linker Error I am not having a problem with, using old code into the new VS 2005. Nothing I have will compile suddenly. Not even a basic "Hello World" application. Every program I creat or run gives me the LINK : fatal error LNK1104: cannot open file 'MSVCRTD.lib' Error. What can I do to fix this Would it be easier to just uninstall and reinstall Code Snippet // HelloWorld.cpp : Defines the entry point for the console application. // #include "stdafx.h" int _tmain ( int argc , _TCHAR * argv []) { printf ( "Hello World!" ); return 0 ; } Tag: Visual C++ Language How to convert unsigned char __gc[] to char[] Visual C++
  - 9
    - Native Wifi Some one can help me about native wifi I have Windows XP SP2 with Visual Basic 2005 and have update with WindowsXP-KB893357-v2-x86-ENU and WindowsXP-KB918997-v6-x86-ENU. I don't know how to code, please give me some sample project with native wifi, and all neede resource to apply them. Thanks for response Tag: Visual C++ Language How to convert unsigned char __gc[] to char[] Visual C++
  - 10
    - can't connect to an access database from a thread Hello, I'm trying to connect to an access database just to read it. I'm creating a thread with afxbeginthread but i have problems. If I execute the same code without threading it works. Her is my code: void CAutomation::BBDD() { CMiDaoDatabase dbData; CDaoRecordset *rsData; CString sAux, sDest; int iRet; sDest=m_sPathAccess; sDest=sDest + "Comparaciones"; sAux.Format("%s.MDB",sDest); iRet=dbData.Open(sAux, FALSE, TRUE); sAux = "Select * from SAnulaciones;"; rsData = new CDaoRecordset(&dbData); rsData->Open(dbOpenDynaset,sAux); delete rsData; dbData.Close(); } UINT ThreadOperacio(LPVOID pParam) { int i,iRet,iAux; CEstacio *pEstacio; SThreadBack *pObject = (SThreadBack*) pParam; pObject->proces = TRUE; do { //proyecto de abrir un bbdd desde un hilo pObject->pAutomation->BBDD(); }while(pObject->exit == FALSE); pObject->proces = FALSE; return 0; } The BBDD function is declared as int, but i tryed to declare it as static int but it doesn't work also. I'm sure it's an easy problem but i have one day lost. Thank you very mutch! Tag: Visual C++ Language How to convert unsigned char __gc[] to char[] Visual C++
  - 11
    - Question about accepting strings of European format A friend of mine from the UK was testing a program I wrote in which there are parts where the user needs to input a double, almost always a decimal. Since he is from the UK, he has his regional setting on Windows set to European, thus, our decimal points are commas for them. Since my program is looking for decimal points, it crashes when it sees a comma used in that manner. Of course, when he set his regional settings to US, the program ran fine with no errors, but then he cant use any of his other programs. So, I need a way to make my program compatible with input in which a comma is a decimal point. Any help would be greatly appreciated. Thanks in advance, Lee Tag: Visual C++ Language How to convert unsigned char __gc[] to char[] Visual C++
  - 12
    - C++ Express Compiler error Hi, I am modding half life 2, to make it third person. So i've installed the direct x sdk, windows platform sdk and service pack 1, also i've added user32.lib to the field Additional Dependencies. ------ Build started: Project: client_hl2mp, Configuration: Debug HL2MP Win32 ------ Compiling... in_camera.cpp c:\program files\revelation studios\src\cl_dll\in_camera.cpp(9) : fatal error C1083: Cannot open precompiled header file: 'Debug HL2MP/client.pch': No such file or directory Build log was saved at "file://c:\Program Files\Revelation Studios\src\cl_dll\Debug HL2MP\BuildLog.htm" client_hl2mp - 1 error(s), 0 warning(s) ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ========== What can i do to get rid of this error Tag: Visual C++ Language How to convert unsigned char __gc[] to char[] Visual C++
  - 13
    - working with forms I'm trying to get make the program check a textbox and see if the text in it matches a specific word. Here's the code: // iostream_cin.cpp // compile with: /EHsc #pragma once namespace hello { using namespace System; using namespace System::ComponentModel; using namespace System::Collections; using namespace System::Windows::Forms; using namespace System: ata; using namespace System: rawing; /// <summary> /// Summary for Form1 /// /// WARNING: If you change the name of this class, you will need to change the /// 'Resource File Name' property for the managed resource compiler tool /// associated with all .resx files this class depends on. Otherwise, /// the designers will not be able to interact properly with localized /// resources associated with this form. /// </summary> public ref class Form1 : public System::Windows::Forms::Form { public : Form1( void ) { InitializeComponent(); // //TODO: Add the constructor code here // } protected : /// <summary> /// Clean up any resources being used. /// </summary> ~Form1() { if (components) { delete components; } } private : System::Windows::Forms::TextBox^ textBox1; protected : private : System::Windows::Forms::Label^ label1; private : System::Windows::Forms::Label^ label2; private : System::Windows::Forms::Button^ button1; public : System::Windows::Forms::TextBox^ textBox2; private : private : private : private : protected : private : /// <summary> /// Required designer variable. /// </summary> System::ComponentModel::Container ^components; #pragma region Windows Form Designer generated code /// <summary> /// Required method for Designer support - do not modify /// the contents of this method with the code editor. /// </summary> void InitializeComponent( void ) { System::ComponentModel::ComponentResourceManager^ resources = ( gcnew System::ComponentModel::ComponentResourceManager(Form1:: typeid )); this ->textBox1 = ( gcnew System::Windows::Forms::TextBox()); this ->label1 = ( gcnew System::Windows::Forms::Label()); this ->label2 = ( gcnew System::Windows::Forms::Label()); this ->button1 = ( gcnew System::Windows::Forms::Button()); this ->textBox2 = ( gcnew System::Windows::Forms::TextBox()); this ->SuspendLayout(); // // textBox1 // this ->textBox1->BackColor = System: rawing::Color::AntiqueWhite; this ->textBox1->Location = System: rawing: oint(104, 31); this ->textBox1->MaxLength = 15; this ->textBox1->Name = L "textBox1" ; this ->textBox1->Size = System: rawing: ize(153, 20); this ->textBox1->TabIndex = 1; this ->textBox1->TextChanged += gcnew System::EventHandler( this , &Form1::textBox1_TextChanged); // // label1 // this ->label1->AutoSize = true ; this ->label1->BackColor = System: rawing::Color::Transparent; this ->label1->Font = ( gcnew System: rawing::Font(L "Microsoft Sans Serif" , 8.25F, System: rawing::FontStyle::Bold, System: rawing::GraphicsUnit: oint, static_cast <System::Byte>(0))); this ->label1->Location = System: rawing: oint(35, 38); this ->label1->Name = L "label1" ; this ->label1->Size = System: rawing: ize(67, 13); this ->label1->TabIndex = 3; this ->label1->Text = L "Username:" ; this ->label1->Click += gcnew System::EventHandler( this , &Form1::label1_Click); // // label2 // this ->label2->AutoSize = true ; this ->label2->BackColor = System: rawing::Color::Transparent; this ->label2->Font = ( gcnew System: rawing::Font(L "Microsoft Sans Serif" , 8.25F, System: rawing::FontStyle::Bold, System: rawing::GraphicsUnit: oint, static_cast <System::Byte>(0))); this ->label2->Location = System: rawing: oint(35, 64); this ->label2->Name = L "label2" ; this ->label2->Size = System: rawing: ize(65, 13); this ->label2->TabIndex = 4; this ->label2->Text = L "Password:" ; // // button1 // this ->button1->BackColor = System: rawing: ystemColors::Control; this ->button1->Cursor = System::Windows::Forms::Cursors::Arrow; this ->button1->Location = System: rawing: oint(104, 95); this ->button1->Name = L "button1" ; this ->button1->Size = System: rawing: ize(76, 24); this ->button1->TabIndex = 5; this ->button1->Text = L "Login" ; this ->button1->UseVisualStyleBackColor = false ; this ->button1->Click += gcnew System::EventHandler( this , &Form1::button1_Click_1); // // textBox2 // this ->textBox2->Anchor = System::Windows::Forms::AnchorStyles::None; this ->textBox2->BackColor = System: rawing::Color::AntiqueWhite; this ->textBox2->ImeMode = System::Windows::Forms::ImeMode: n; this ->textBox2->Location = System: rawing: oint(104, 57); this ->textBox2->MaxLength = 15; this ->textBox2->Name = L "textBox2" ; this ->textBox2->PasswordChar = '*' ; this ->textBox2->Size = System: rawing: ize(153, 20); this ->textBox2->TabIndex = 6; this ->textBox2->WordWrap = false ; this ->textBox2->TextChanged += gcnew System::EventHandler( this , &Form1::textBox2_TextChanged_1); // // Form1 // this ->AcceptButton = this ->button1; this ->AutoScaleDimensions = System: rawing: izeF(6, 13); this ->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font; this ->BackgroundImage = (cli:: safe_cast <System: rawing::Image^ >(resources->GetObject(L "$this.BackgroundImage" ))); this ->BackgroundImageLayout = System::Windows::Forms::ImageLayout::Center; this ->ClientSize = System: rawing: ize(289, 154); this ->Controls->Add( this ->textBox2); this ->Controls->Add( this ->button1); this ->Controls->Add( this ->label2); this ->Controls->Add( this ->label1); this ->Controls->Add( this ->textBox1); this ->FormBorderStyle = System::Windows::Forms::FormBorderStyle::None; this ->KeyPreview = true ; this ->MaximizeBox = false ; this ->MaximumSize = System: rawing: ize(289, 154); this ->MinimizeBox = false ; this ->MinimumSize = System: rawing: ize(289, 154); this ->Name = L "Form1" ; this ->Text = L "Loginscreen" ; this ->TransparencyKey = System: rawing::Color::Transparent; this ->Load += gcnew System::EventHandler( this , &Form1::Form1_Load); this ->ResumeLayout( false ); this ->PerformLayout(); } #pragma endregion private : System::Void Form1_Load(System: bject^ sender, System::EventArgs^ e) { } private : System::Void textBox2_TextChanged_1(System: bject^ sender, System::EventArgs^ e) { } private : System::Void button1_Click(System: bject^ sender, System::EventArgs^ e) { } private : System::Void progressBar1_Click(System: bject^ sender, System::EventArgs^ e) { } private : System::Void label1_Click(System: bject^ sender, System::EventArgs^ e) { } private : System::Void button1_Click_1(System: bject^ sender, System::EventArgs^ e) { if (textBox2.text == "Trevor" ) MessageBox: how( "Login Successful!" ); } private : System::Void flowLayoutPanel1_Paint(System: bject^ sender, System::Windows::Forms: aintEventArgs^ e) { } private : System::Void textBox1_TextChanged(System: bject^ sender, System::EventArgs^ e) { } }; } I get the following error message: error C2228: left of '.text' must have class/struct/union type is 'System::Windows::Forms::TextBox ^' did you intend to use '->' instead I'm new to this and can't figure out why its not working. I'd appreciate any help given. Tag: Visual C++ Language How to convert unsigned char __gc[] to char[] Visual C++
  - 14
    - Microsoft C++ x64 compiler very slow at floating point math Hi, I've been working on performance tuning some audio sample rate conversion routines and firstly I must say how impressed I've been with VS05's x86 optimizing compiler - it does some really amazing things, often matching and occasionally outperforming some hand written assembler I have. Today however I recompiled these routines with the x64 compiler and was shocked at the drop in performance. As an example on a core 2 duo, a single channel sinc resample routine compiled as x86 converts about 1.5 million samples per second. Exactly the same code recompiled in x64, with exactly the same input data, on exactly the same machine - 500 thousand samples per second. That's three times slower! Although I haven't investigated deeply I did take a quick look at the generated assembly and noticed the x64 version uses SSE floating point instructions where as the x86 version uses the floating point stack. For comparison I wrote the same routine in x64 assembler using floating point stack and got similar results to the x86 version. (Note these routines are not using SSE intrinsics, nor is the compiler generating anything that uses SSE's parallel nature - its just using the low double of each SSE register to hold/manipulate a single double value). I've also compared the routines enough to tell they are basically similar ie: both the x86 and x64 versions do loop unrolling and are structurally similar - its just how the actual floating point math is done that is different. In the tight inner loop, the x86 version has 20 floating point related instructions while the x64 version has 24. Here's the worst part though - there are no compiler options to tell the x64 compiler to not use SSE - aparently it just can't generate code that uses the floating point stack. The other downside of this is you loose the 80 bit precision of the floating point stack registers as the SSE double registers are only 64 bit. So while the x86 compiler is awesome, seems the x64 version is a more than little lacking. Anyone else noticed similar results, or know why SSE instructions would be so much slower, or ideas on how to fix it I'm guessing something like its slow to load 32bit float values from non-16 byte aligned memory. I'm 99% confident this is not a denormal problem. Please don't tell me I need to go back to assembler again! Brad Tag: Visual C++ Language How to convert unsigned char __gc[] to char[] Visual C++
  - 15
    - memory problem I am creating a form in MFC application and drawing dynamic controls like textboxes, buttons, labels and frame within it. I open the form and close the form. While closing the form I have taken care to delete the child controls first and then the parent control by issuing delete <controlname> The amount of memory taken to draw the screen is the not amount of memory decreasing when I close the form. I have seen for every control ie., button, textbox and label its respective base class's Destroywindow function returns 1 (which stands for successful destruction of window) but I still don't see the memory getting released when I observe using windows task manager. Can someone help me regarding this. Thanks in advance Tag: Visual C++ Language How to convert unsigned char __gc[] to char[] Visual C++
  - 16
    - stl set does not work in vs.net I'm using STL in VS.NET 2005 with the following code: Code Snippet const int N = 10; int a[N] = {4, 1, 1, 1, 1, 1, 0, 5, 1, 0}; int b[N] = {4, 4, 2, 4, 2, 4, 0, 1, 5, 5}; std::multiset< int > A(a, a + N); std::multiset< int > B(b, b + N); std::multiset< int > C; cout << "Set A: " << endl; std::set< int >::iterator iter; for (iter = A.begin(); iter != A.end(); iter++) { cout << (*iter) << endl; } and the compiler failed with the following message: ------ Build started: Project: win32, Configuration: Debug Win32 ------ Compiling... win32.cpp c:\dev\clrwin\win32\win32.cpp(43) : error C2679: binary '=' : no operator found which takes a right-hand operand of type 'std::_Tree<_Traits>::iterator' (or there is no acceptable conversion) with [ _Traits=std::_Tset_traits<int,std::less,std::allocator,true> ] c:\program files\microsoft visual studio 8\vc\include\xtree(484): could be 'std::_Tree<_Traits>::iterator &std::_Tree<_Traits>::iterator: perator =(const std::_Tree<_Traits>::iterator &)' with [ _Traits=std::_Tset_traits<int,std::less,std::allocator,false> ] while trying to match the argument list '(std::_Tree<_Traits>::iterator, std::_Tree<_Traits>::iterator)' with [ _Traits=std::_Tset_traits<int,std::less,std::allocator,false> ] and [ _Traits=std::_Tset_traits<int,std::less,std::allocator,true> ] c:\dev\clrwin\win32\win32.cpp(43) : error C2679: binary '!=' : no operator found which takes a right-hand operand of type 'std::_Tree<_Traits>::iterator' (or there is no acceptable conversion) with [ _Traits=std::_Tset_traits<int,std::less,std::allocator,true> ] c:\program files\microsoft visual studio 8\vc\include\xtree(303): could be 'bool std::_Tree<_Traits>::const_iterator: perator !=(const std::_Tree<_Traits>::const_iterator &) const' with [ _Traits=std::_Tset_traits<int,std::less,std::allocator,false> ] while trying to match the argument list '(std::_Tree<_Traits>::iterator, std::_Tree<_Traits>::iterator)' with [ _Traits=std::_Tset_traits<int,std::less,std::allocator,false> ] and [ _Traits=std::_Tset_traits<int,std::less,std::allocator,true> ] Build log was saved at "file://c:\Dev\clrwin\win32\Debug\BuildLog.htm" win32 - 2 error(s), 0 warning(s) ========== Build: 0 succeeded, 1 failed, 1 up-to-date, 0 skipped ========== Scratch my head and no clue what is going on with the compiler. Help is appreciated. Thanks Kevin </int,std::less</int,std::less</int,std::less</int,std::less</int,std::less</int,std::less</int,std::less</int,std::less Tag: Visual C++ Language How to convert unsigned char __gc[] to char[] Visual C++
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  - 1
    - MFC ActiveX TLB File not found Hello... I am making a MFC ActiveX and when I try to register it with regsvr32 I get an error DllRegisterServer Failed. Return code was : 0x80020400. I've done some search and I found that I must call ::CoInitialize(NULL); I did this, but the result is the same. On a MSDN page I've read that When your control is registered, the AfxOleRegisterTypeLib function automatically looks for the specified .TLB file in the same directory as the control and registers it in the Windows registration database. If the .TLB file is not found, the function has no effect. I debug my I ActiveX and breakes at these lines : if (!AfxOleRegisterTypeLib(AfxGetInstanceHandle(), _tlid)) return ResultFromScode(SELFREG_E_TYPELIB); So, why can't I found the .TLB file Thanks Tag: Visual C++ Language How to convert unsigned char __gc[] to char[] Visual C++
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    - WIN32 problems Hi, My goal is to create a DLL that provides usefull functions wich give you a DialogWindow. This has to be programmed in a way that only default DynamicLinkLibrarys(.DLL) files are used. So I'm useing C++ and WIN32, working in Visual Studio 2005. I have a few problems where I can't find the appropriate help for. 1st- Adding a "Button" and/or "Edit" to the Dialogs can only be done right after the CreateWindowEX function where i Create the Dialog-Window with ( all the help files state this should be done in the WndProc function when Msg == WM_CREATE ) If though I'm looking into example-code downed from the internet, this ain't a problem when I'm compiling them. 2nd- I'm not recieving messages like WM_GETDLGCODE WM_NEXTDLGCTL WM_INITDIALOG 3rd- While using WS_TABSTOP when creating the Buttons and Edit-boxes: pressing the tab-key has NO result on Buttons and in a Edit-box it's resulting ONLY in a MessageBeep. 4th- How do I allow only digits in a specified Edit-box Window Creating (password asking dialogbox): Code Snippet DWORD dwExStyle; // Window Extended Style DWORD dwStyle; // Window Style RECT WindowRect; // Grabs Rectangle Upper Left / Lower Right Values RECT DeskRect; WindowRect.left = ( long )0; // Set Left Value To 0 WindowRect.right = ( long )width; // Set Right Value To Requested Width WindowRect.top = ( long )0; // Set Top Value To 0 WindowRect.bottom = ( long )height; // Set Bottom Value To Requested Height GetClientRect( GetDesktopWindow(), &DeskRect ); WNDCLASS wc; // Windows Class Structure wc.style = CS_HREDRAW | CS_VREDRAW; // | CS_OWNDC; // Redraw On Size, And Own DC For Window. wc.lpfnWndProc = (WNDPROC)WndProc; // WndProc Handles Messages wc.cbClsExtra = 0; // No Extra Window Data wc.cbWndExtra = 0; //DLGWINDOWEXTRA; // No Extra Window Data wc.hInstance = m_hInstance; // Set The Instance wc.hIcon = LoadIcon( NULL, IDI_WINLOGO ); // Load The Default Icon //wc.hIconSm = LoadIcon( NULL, IDI_APPLICATION ); // WNDCLASSEX // Load The Default Icon wc.hCursor = LoadCursor( NULL, IDC_ARROW ); // Load The Arrow Pointer wc.hbrBackground = (HBRUSH)GetSysColorBrush( COLOR_3DFACE ); // What Color we want in our background wc.lpszMenuName = NULL; // We Don't Want A Menu wc.lpszClassName = m_appName; // Set The Class Name if ( !RegisterClass( &wc ) ) // Attempt To Register The Window Class { return false ; // Return FALSE } dwStyle = WS_CAPTION | WS_VISIBLE | WS_SYSMENU | WS_OVERLAPPED | WS_POPUP ; dwExStyle = WS_EX_LEFT | WS_EX_LTRREADING | WS_EX_WINDOWEDGE | WS_EX_DLGMODALFRAME; AdjustWindowRectEx( &WindowRect, dwStyle, FALSE, dwExStyle ); // Adjust Window To True Requested Size if ( !( m_hWnd = Active_hWnd = CreateWindowEx( dwExStyle , // Extended Style For The Window m_appName, // Class Name title, // Window Title dwStyle , // Defined Window Style DeskRect.right/2 - (WindowRect.right-WindowRect.left)/2, // X In the middle DeskRect.bottom/2 - (WindowRect.bottom-WindowRect.top)/2, // // Y In the middle WindowRect.right-WindowRect.left, // Calculate Window Width WindowRect.bottom-WindowRect.top, // Calculate Window Height Parent, // No Parent Window NULL, // No Menu m_hInstance, // Instance NULL ))) // Dont Pass Anything To WM_CREATE { KillWindow( ); // Reset The Display return false ; // Return FALSE } HWND hOkButton = CreateWindow( "BUTTON" , "Ok" , WS_CHILD | WS_VISIBLE | WS_TABSTOP | BS_DEFPUSHBUTTON, clientRect.right - 160, clientRect.bottom - 36, 72, 24, m_hWnd, (HMENU)IDB_OK, m_hInstance, NULL ); HWND hCancelButton = CreateWindow( "BUTTON" , "Cancel" , WS_CHILD | WS_VISIBLE | WS_TABSTOP | BS_TEXT, clientRect.right - 80, clientRect.bottom - 36, 72, 24, m_hWnd, (HMENU)IDB_CANCEL, m_hInstance, NULL ); HWND hTextEdit = CreateWindowEx( WS_EX_CLIENTEDGE, "EDIT" , "" , WS_CHILD | WS_VISIBLE | WS_TABSTOP | ES_AUTOHSCROLL | WS_BORDER | ES_PASSWORD, clientRect.right/2 - 50, clientRect.bottom - 80, 160, 26, m_hWnd, (HMENU)IDC_EDIT, m_hInstance, NULL ); Thanks in advance Tag: Visual C++ Language How to convert unsigned char __gc[] to char[] Visual C++
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    - How to create libraries in VS2005 Sorry for this dumb question but I have just loaded VS2005 and am trying to convert old VC 6 projects. Most of the ole projects include MFC generated library projects in the build. VS2005 doesn't seem to have a project wizard to create a library. Can someone tell me how to convert the old MFC library project to VS2005 C++ Thanks Tag: Visual C++ Language How to convert unsigned char __gc[] to char[] Visual C++
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    - Global access to managed class The Visual Studio 2005 C++ compiler gives errors if I try to make a managed class global or staic. Is there a way around this so that I can make a singleton design pattern for the glass where I have one instance that is globally accessible to all other classes Thanks. Paul Tag: Visual C++ Language How to convert unsigned char __gc[] to char[] Visual C++
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    - Trapping the Start button click event Is it possible to trap in a VC++ application the event generated when the Windows Start menu pops up. What is the message id that is generated for this event Thanks in advance Tag: Visual C++ Language How to convert unsigned char __gc[] to char[] Visual C++
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    - Managed Extensions for C++ to C++/CLI conversion tool We have just finished and released our 1st software project using Visual Studio 2005 MC++, the source code for this has magically turned into a deprecated syntax during the products development lifecycle. We are using /clr: oldsyntax to keep our existing code working but for how much longer I don’t know. For example we cant even add any new forms to our flagship software product with out hacking the project etc. Will you ever attempt to finish the Managed Extensions for C++ to C++/CLI conversion tool I have tried it out and it does not do anything usefull with our code at all : ( Can you offer services to take existing MC++ code and convert to the new Visual Studio 2005 SP1 C++/CLI syntax It seems you have very little interest in helping people like us. I have read all the migration checklist etc and tried a manual code conversion but the complexity of converting our existing code seems impossible : ( or at least very time consuming and prone to errors Just manaualy converting the old style "__property" syntax to the new "property" syntax is overwhelming : ( thousands of them to do etc. This is just one of the problems listed. Any help would be appreciated, and sorry for being so negative. Tag: Visual C++ Language How to convert unsigned char __gc[] to char[] Visual C++
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    - Dialogs: modalities & etc. Hi again! I have some problem with creating modeless dialog windows. To decribe situation I'm going to show you 2 examples: 1. I have 3 modeless dialog windows (the main and 2 additional). This time I'm opening all of them in WinApp::InitInstance procedure. And in this case all works as I want: if I click on any of all 3 windows - the window gets the focus, moving up over other two other dialogs. That is my aim. 2. All the same - 3 modeless dialogs (absolutely the same) and the same procedures for creating them. But this time I have opened only the main dialog in WinApp::InitInstance. Two additional dialogs are opening by the commands in the main dialog. And in this case I have the problem. After opening any of the additional dialogs the main dialog goes down under the additional. Even if it has the focus! So - this is the question. What is the difference between opening modeless dialogs in WinApp::InitInstance and opening them later (from ON_COMMAND procedures - for ex. from menu commands) What have I to do with main dialog. I want it to go up while getting focus! But not remaining under the additional dialogs! Some comments: all of the dialog windows have these (some of all) constructing modes: 3D look = true border = Resizing style = Popup window edge = true topmost = false system modal = false Visible = true most of others are false Tag: Visual C++ Language How to convert unsigned char __gc[] to char[] Visual C++
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    - File transfer using FTP HI all, I want to write a program for transfering my "CSV" file into a server.Can any one help me to solve this using FTP . It will be highly appreciated, if you provide code samples. Thanks and Regards Rinu Tag: Visual C++ Language How to convert unsigned char __gc[] to char[] Visual C++
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    - Debugging an DLL build with /CLR compiler option Hello, Normally, debugging an DLL written in unmanaged code is no problem, but when i build the DLL with the /CLR compiler option and calling mannaged code, the Microsoft Development Environment comes with the message: "Unable to start debugging" Changing "the type of debugger" from "Auto" to "Native Only" will get the application running, but i can't debug it. Development environment: Windows XP Visual studio 2003 .NET Framework 1.1 Thanks, Alexander #include "stdafx.h" #include "dlltestclr.h" #using "mscorlib.dll" #using "system.windows.forms.dll" #using "vision.dll" BOOL APIENTRY DllMain( HANDLE hModule, DWORD ul_reason_for_call, LPVOID lpReserved) { return TRUE; } #undef MessageBox __declspec(dllexport) int __cdecl VisionInit(HWND handle) { Vision::AnalyseGebied* analyseGebied = Vision::AnalyseIO::ReadFromFile("AnalyseGebiedConfig.xml"); System::Windows::Forms::MessageBox: how(analyseGebied->Header->Copyright); System::Windows::Forms::MessageBox: how(analyseGebied->Header->Blabla); return -1; } Code Snippet Tag: Visual C++ Language How to convert unsigned char __gc[] to char[] Visual C++
  - 10
    - How can I Get an XP Look for CWebBrowser2? Hello, I am trying to use CWebBrowser2 to view pages and it is all working fine. The problem is that all the buttons look 'old school' I am currently using Windows XP and have modified my program which contains the IE component to have the Windows XP Look and feel; but for some reason, the internet explorer dialog within my program does not have the Windows XP Look. All the buttons are not rounded or shaded as in the rest of my program. Is there any (easy) way for me to set the CWebBrowser2 to use the XP Look Thanks Tag: Visual C++ Language How to convert unsigned char __gc[] to char[] Visual C++
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    - Unexpected namespace pollution in VC8 (bug?) Running Visual Studio 2005 Professional, no service pack applied. Here is a code snippet distilled from some code that fails due to unexpected namespace conflicts: namespace ns1 { typedef unsigned long ns_t; struct base { ~base() {} }; } namespace ns2 { using namespace ns1; struct dummy : public base { }; } namespace ns3 { struct dummy2 { dummy2() {} ns2::dummy m_dummy; }; } ns_t ns_check; //compilation should fail here!! The above code compiles fine on my machine. The problem is that , for some reason, ns_t is visible at the global namespace when it shouldn't be. Strangely, removing base::~base will cause the behavior I expect (compilation error). I'm not sure exactly where the bug is and what a workaround might be. If someone from the VC team can reproduce this, I'd appreicate some information on how to avoid triggering the behavior. Tag: Visual C++ Language How to convert unsigned char __gc[] to char[] Visual C++
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    - CLR corrupts stack! Hello World! I`m very angry because I spent 2 days for nothing. I have the next declaration: typedef int ( __stdcall * File_Create)(LPCSTR FileName, DWORD Attribute); File_Create pfnFileCreate = /* valid function pointer */ if(pfnFileCreate("file_name", 0)) { ... } When pfnFileCreate I receive an exception: Managed Debugging Assistant 'FatalExecutionEngineError' has detected a problem in 'd:\Project\Work\Products\CarPhone\CPW.Plugins\Moto\Moto\debug\plgtest.exe'. Additional Information: The runtime has encountered a fatal error. The address of the error was at 0x79e755fc, on thread 0x770. The error code is 0xc0000005. This error may be a bug in the CLR or in the unsafe or non-verifiable portions of user code. Common sources of this bug include user marshaling errors for COM-interop or PInvoke, which may corrupt the stack. I was very surprised when I detected the next code in dissassembly: if(pfnFileCreate("file_name", 0))) 00000253 8B 46 0C mov eax,dword ptr [esi+0Ch] 00000256 8B 78 0C mov edi,dword ptr [eax+0Ch] 00000259 33 D2 xor edx,edx 0000025b B9 E0 23 32 12 mov ecx,123223E0h ; "file_name" pointer 00000260 8B C7 mov eax,edi 00000262 68 60 8F 1E 00 push 1E8F60h ; 00000267 E8 40 B9 9C FF call FF9CBBAC ;pfnFileCreate 0000026c 8B F8 mov edi,eax 0000026e 83 FF FF cmp edi,0FFFFFFFFh 00000271 75 2B jne 0000029E I don`t understand what is the code Why my __stdcall function receives first parameter in ECX (like __fastcall) and what pushes into the stack IMHO it is something abnormal Tag: Visual C++ Language How to convert unsigned char __gc[] to char[] Visual C++
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    - Autogenerated copy constructors and equals operators Hi everyone, Anyone know how to inhibit the compiler's autogeneration of copy constructors and equals operators for classes other than defining your own I have a template queue class for which cloning is not really a valid operation, and as such some of it's nested types are not suitable for auto-generated copy constructors/operators. Because of this, when I compile some code that uses the outer template class, I get compiler errors such as: error C2678: binary '=' : no operator found which takes a left-hand operand of type 'volatile T<itemtype>::NestedType' (or there is no acceptable conversion) When I double-click on the error, the editor simply goes to the end of the class declaration that has declared a member of type T< sometype > . Further investigation down the error list yields: This diagnostic occurred in the compiler generated function T<itemtype> &T<itemtype>::operator =(const T<itemtype> &)'. I can fix the error by defining a dummy copy constructor that is a clone of my default constructor, but I feel that misleads programmers using the class into thinking they can clone an instance of that type. Is there anything else I can do Tag: Visual C++ Language How to convert unsigned char __gc[] to char[] Visual C++
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    - Parallel Port I am wondering if anyone has a class already made for parallel port programs. I found several different examples but they were all for Unix and would not compile for me. I don't want to start from complete scratch because my tech lead told me to not "reinvent the wheel" because there is so much information already out there. The program I need to write must be compatible with Windows XP and must be written in Visual C++. The person previously working on this got the send program to work, I just need to write the part that will receive information from another computer. Forums I've searched already have told me to use CreateFile() and ReadFile() and I'm not having much success understanding how to use these. Also, I've been told to use inpout32.dll, but after downloading it, reading all about it, and asking how to use it, I still don't know how to include that in my project. If anyone has done this sort of project before, could you please post some sample code or give me information on how to do this Tag: Visual C++ Language How to convert unsigned char __gc[] to char[] Visual C++
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    - Extended ascii char set im trying to send special characters to another application. ive tried using: keybd_event() SendInput() but is not working, i've gotten them to send normal char's, but not char's like E..e thank you Tag: Visual C++ Language How to convert unsigned char __gc[] to char[] Visual C++
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    - 64-bit apps need larger stacks than 32-bit Hi all, We're looking into creating a 64-bit version our application. The app uses a third party DLL that has a 64-bit version. One of the functions in the DLL uses recursion, and given a certain input it can get very deep. Playing around with it, I've noticed the stack size used on the deep recursion condition is twice the size in the 64-bit version, comparing to the 32-bit one. I've written a small test program with an empty function that does nothing other than call itself a given number of times. Turned out the 32-bit version was able to recur more than twice before reaching a stack overflow. Measuring the stack usage before crashing confirmed this observation. This is not a common situation, but it has in fact happened to me that a 64-bit version crashed were 32-bit ran just fine. The default stack size in VC8 is 1MB. Given that 64-bit versions use a lot more stack space, wouldn't it make sense to enlarge that default Tag: Visual C++ Language How to convert unsigned char __gc[] to char[] Visual C++

Feng26

Hi,

I am new to C++ .Net and currently running into a problem of type conversion.

I have a unsigned char __gc[] and I need to convert it into a char[]. How do I do that

Thanks for your help!

Feng

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Re: Visual C++ Language How to convert unsigned char __gc[] to char[]

Alex Farber

To convert managed and unmanaged arrays of primitive types, use different Marshal::Copy overloads.

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Re: Visual C++ Language How to convert unsigned char __gc[] to char[]

Sheng Jiang

Suggest reading

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Re: Visual C++ Language How to convert unsigned char __gc[] to char[]

Feng26

Thank you so much Jiang for the links. The "method number 2" of your sencond link solved my problem.

Really appreciate your help!

Feng

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Re: Visual C++ Language How to convert unsigned char __gc[] to char[]

Feng26

Thanks Alex for your help. The solution you recommended makes a lot of sense. It's just my ignorance on C++ that I didn't make it work before finding another way arround.

Feng

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