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Error C2664 Cannot Convert Parameter

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Luckily, the problem which you are most likely being bitten by is found in the error message. Because the parameter is an szString reference, an object must be created by the appropriate constructor. This sample generates C2664: Copy // C2664d.cpp // C2664 expected #include void func1(LPCSTR &s) { } void func2(LPSTR &s) { func1(s); } int main() { return 0; } ExampleHere's a You should change your instantiation into: Tool< MyObject > *tool = new Tool< MyObject >(objData); Another problem is that you have the definition of Tool's member functions in a separate .cpp http://oncarecrm.com/error-c2664/error-c2664-cannot-convert-parameter-2-from.html

Several of the libCom APIs are written in C++, so the above rules do matter for some EPICS code. typename can be used only when qualified type names are used (and is required when the type names are dependent), which is not your case: template class Tool { He uses C++ Managed extensions or C++/CLI. To get your code to work as (I think) you expect, change your call to wrapper to this: a = wrapper(3, &inc); share|improve this answer edited Jun 13 '11 at 15:17 https://msdn.microsoft.com/en-us/library/s5b150wd.aspx

Error C2664 Cannot Convert Parameter 1 From

I want to read/write data through "COM1". lol sorry i didnt realise that this problem was specifically a microsoft one. int array), however you passed it an int to it. It all depends upon what conversions are allowed by System::String. #3 14-Oct-2008, 19:23 RenegadeAO Awaiting Email Confirmation Join Date: Oct 2008 Location: Pensacola FL Posts: 22 Re: String

Problem solved. GetCommState (hPort, &PortDCB); // Change the DCB structure settings. CommTimeouts.ReadIntervalTimeout = 50; CommTimeouts.ReadTotalTimeoutMultiplier = 50; CommTimeouts.ReadTotalTimeoutConstant = 50; CommTimeouts.WriteTotalTimeoutMultiplier = 50; CommTimeouts.WriteTotalTimeoutConstant = 50; // Set the timeout parameters for all read and write operations on the port. Error C2664 Cannot Convert Parameter 3 Join them; it only takes a minute: Sign up error C2664: cannot convert parameter 1 from 'X' to 'X' up vote 1 down vote favorite I have a C++/Win32/MFC project in

See ASP.NET Ajax CDN Terms of Use – http://www.asp.net/ajaxlibrary/CDN.ashx. ]]> current community chat Stack Overflow Meta Stack Overflow your Error C2664 Cannot Convert Parameter From Const Char To Lpcwstr char* pszNext; // To fix, uncomment the following line. // const char* pszNext; wchar_t* pwszNext; mbstate_t state; locale loc("C"); int res = use_facet > ( loc ).in( state, pszExt, Was any city/town/place named "Washington" prior to 1790? http://stackoverflow.com/questions/14713648/error-c2664-cannot-convert-parameter-1-from-x-to-x This program pulls the model number, price and type of a particular product from a text file and puts them into listboxes.

Good to see a mention of std::vector too! –Nick Mar 3 '14 at 17:08 add a comment| up vote 1 down vote your function takes an int[](array) as a parameter int Error C2664 In Visual C++ Copy // C2664g.idl import "prsht.idl"; [ object, uuid(8402B8F1-BF7F-4B49-92D4-C2B9DF4543E9) ] interface IMyObj1 : IUnknown { HRESULT teststr([in, string] wchar_t *wstr); HRESULT testarr([in, size_is(len)] wchar_t wstr[], [in] int len); HRESULT testbstr([in] BSTR bstr); Thanks for your help. 0 Laiq Ahmed 42 7 Years Ago yes Its seems fine with a cursory look. So I am providing the solution only :P. 0 jen140 7 Years Ago Just a curiosity, what Visual Studio version are you using ?

Error C2664 Cannot Convert Parameter From Const Char To Lpcwstr

share|improve this answer edited Mar 3 '14 at 15:21 answered Mar 3 '14 at 15:15 herohuyongtao 25.4k96691 And what about length? Why are so many metros underground? Error C2664 Cannot Convert Parameter 1 From Join them; it only takes a minute: Sign up error C2664: cannot convert parameter 1 from 'int' to 'int []' up vote 0 down vote favorite #include using namespace std; Cannot Convert Parameter 1 From Int What would be a good approach to make sure advisor goes through all the report?

Lewis Muir > Cc: EPICS Tech-Talk > Subject: Re: epicsRingPointer.h error C2664: 'delete' : cannot convert > parameter > > Hi Lewis, > > Microsoft's attitude to compatibility for C++ code http://oncarecrm.com/error-c2664/error-c2664-cannot-convert-parameter-1.html PortDCB.DCBlength = sizeof (DCB); // Get the default port setting information. The Channel Access API is completely specified in C though, which makes it immune from such issues since Microsoft's C ABI has not changed for a long time. more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed Error C2664 C++

Lewis Muir Re: epicsRingPointer.h error C2664: 'delete' : cannot convert parameter Johnson, Andrew N. This temporary object is then passed to the function. Good luck (Y). 0 Discussion Starter jp071 -6 7 Years Ago Hello jan140, I am using Microsoft Visual Studio 2008. this contact form HANDLE hPort = CreateFile (TEXT("COM3"), GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL); if(hPort == INVALID_HANDLE_VALUE) { cout<<"hPort INVALID" <

It's the best way to learn. Error C2664 Cannot Convert Parameter 1 From 'const Char *' To 'char *' If strModel's type is truly std::string, you can access the underlying null-terminated string via the c_str() member function. I have an assignment for my class and I … error C2440: 'initializing' : cannot convert from 7 replies [B]Hej i am getting the error:[/B] [CODE]error C2440: 'initializing' : cannot convert

Who can send me a simple code?

Engbretson" To: "'Johnson, Andrew N.'" Cc: "'EPICS Tech-Talk'" Date: Mon, 2 Feb 2015 19:06:12 -0600 It's only a problem because someone made it so. cout<<"SetCommState failed" < large arrays. Error C2664 Visual Studio i would suggest to write function like this: Code: int count_sum(int numbers_par[], size_t len) { int sum=0; for(int i=0;i

Without this line the code the program runs without a problem. You should not do that: the linker won't be able to see it when processing a separate translation unit. That is "error C2440: 'initializing' : cannot convert from 'const char [5]' to 'LPCWSTR' " Please chack it again. 0 Laiq Ahmed 42 7 Years Ago try the below one //HANDLE navigate here A class exports mangled versions of its symbol names (name mangling has changed in the past) and the class interfaces have also changed between major versions of Visual Studio, thus the

Why is there a white line in Russian fighter jets canopy? The Gnu policy on their C++ ABI has long stressed compatibility between versions, in contrast to Microsoft's policies. Copy // C2664b.cpp // C2664 expected struct A { // To fix, uncomment the following line. // A(int i){} }; void func( int, A ) {} int main() { func( 1, Compiling I receive this error: 1>c:\users\...\pcasogl.cpp(46) : error C2664: 'Princ' : cannot convert parameter 1 from 'char *' to 'char' The strange thing is that if I copy the content of

People using Easy Channel Access do it all the time . . . . To solve this problem, put the definitions of your class template's member functions into the same header where the class template is defined (Tool.h in your case). Can two different firmware files have same md5 sum? I'm using VC++ Express edition.

Although I am not familiar with forms programming on Microsoft's platform, I suspect that the library you are using allows the argument to be a null-terminated string, not C++'s abstraction on What is the definition of function in ZF/ZFC? Why aren't Muggles extinct? I'm using DragonFireSDK to make an iPhone app, which means that I can't use any external libraries other than the SDK one.

Cc: EPICS Tech-Talk Subject: Re: epicsRingPointer.h error C2664: 'delete' : cannot convert parameter Hi Mark, A DLL that only exports a C++ class can only be called by a program that Benjamin Franksen Next: Re: epicsRingPointer.h error C2664: 'delete' : cannot convert parameter Jani Hakala Index: 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 a = wrapper(3, &inc) ; share|improve this answer answered Jun 13 '11 at 14:54 Mark B 76.4k465138 add a comment| up vote 1 down vote Your call is passing an integer,