Error C2440 Cannot Convert From Const Char * To Lpcwstr
Contents |
work\jyfjtjyulkuyl\jyfjtjyulkuyl\bdfbdh.cpp(26) : error C2440: '=' : cannot convert from 'const char *' to 'LPCWSTR' heres the code: #include cannot convert parameter from const char to lpcwstr
A Value Of Type "const Char *" Cannot Be Assigned To An Entity Of Type "lpcwstr"
0; WndClsEx.cbWndExtra = 0; WndClsEx.hIcon = LoadIcon(NULL, IDI_APPLICATION); WndClsEx.hCursor = LoadCursor(NULL, IDC_ARROW); WndClsEx.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH); WndClsEx.lpszMenuName = NULL; WndClsEx.lpszClassName = ClsName; WndClsEx.hInstance = hInstance; WndClsEx.hIconSm = LoadIcon(NULL, IDI_APPLICATION); // Register the application RegisterClassEx(&WndClsEx); // Create the window object hWnd = CreateWindow(ClsName, WndName, WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, NULL, NULL, hInstance, NULL); // Find out if the window was created intellisense: argument of type "const char *" is incompatible with parameter of type "lpcwstr" if( !hWnd ) // If the window was not created, return 0; // stop the application // Display the window to the user ShowWindow(hWnd, SW_SHOWNORMAL); UpdateWindow(hWnd); // Decode and treat the messages // as long as the application is running while( GetMessage(&Msg, NULL, 0, 0) ) { TranslateMessage(&Msg); DispatchMessage(&Msg); } return Msg.wParam; } LRESULT CALLBACK WndProcedure(HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam) { switch(Msg) { // If the user wants to close the application case WM_DESTROY: // then close it PostQuitMessage(WM_QUIT); break; default: // Process the left-over messages return DefWindowProc(hWnd, Msg, wParam, lParam); } // If something was not done, let it go return 0; } What am i doing wrong!!!!!!!!!!!!!!!!!!!! Nov 4, 2008 at 9:05pm UTC guestgulkan (2942) LPCWSTR = Long Pointer Constant WIDE String In other words a pointer to a UNICODE string is expected. const char *WndName = "A Simple Window"; This is a normal 8 bit ascii string. With Microsoft Visual Studio, the default program setup is for the USE of UNICODE string - hence the problem. To prev
[7]' to 'LPCWSTR' Results 1 to 4 of 4 Thread: error C2440: '=' : cannot convert from 'const char [7]' to 'LPCWSTR' Thread Tools Show Printable Version Email wndclassex this Page… Search Thread Advanced Search Rate This Thread Current Rating Excellent Good Average Bad Terrible Display Linear Mode Switch to Hybrid Mode Switch to Threaded Mode 12-20-2010,05:49 AM #1 brislin View Profile View Forum Posts Registered User Join Date Jul 2005 Location Independence Mo. Posts 380 error C2440: '=' : cannot convert from 'const char [7]' to 'LPCWSTR' I was follow the http://www.cplusplus.com/forum/windows/5368/ WinApi demo in opengl and got this error "error C2440: '=' : cannot convert from 'const char [7]' to 'LPCWSTR" After doing a google I found it had to do with if you using unicode the fix i found was to change the "char" to "wchar_t". before Code: BOOL createGLWindow(char *title, int width, int height, int bits) { } change to this Code: BOOL http://www.3dbuzz.com/forum/threads/186287-error-C2440-cannot-convert-from-const-char-7-to-LPCWSTR createGLWindow(wchar_t *title, int width, int height, int bits) { } and when you go to use you string Code: wc.lpszClassName = L"OpenGL"; I just thought i would post this just incase some else had this problem if some one else could a bettter explanation of what the problem was and how to fix it would be nice Reply With Quote 12-20-2010,07:11 AM #2 brislin View Profile View Forum Posts Registered User Join Date Jul 2005 Location Independence Mo. Posts 380 Reply With Quote 12-20-2010,12:08 PM #3 ComicSansMS View Profile View Forum Posts Visit Homepage Most Horrible Font Ever Join Date Jun 2003 Location Trier, Germany Posts 1,350 i gave a somewhat lengthy explanation of what unicode is all about back in this thread (you'll have to scroll a little). the whole topic is quite exhausting, so feel free to ask if you have questions left. edit: just noticed: seems i didn't know about TCHAR back then, a typedef from windows.h that automatically resolves to char or wchar_t, so you won't need to do that manually. Last edited by ComicSansMS; 12-20-2010 at 12:11 PM. A Pageant of the Bizarre Reply Wi
Sign in Pricing Blog Support Search GitHub This repository Watch 77 Star 462 https://github.com/libigl/libigl/issues/31 Fork 207 libigl/libigl Code Issues 65 Pull requests 4 Projects 0 Wiki Pulse Graphs New issue VS 2013 tutorial 201 #31 Closed keusam opened this Issue Jan 7, 2015 · 19 comments Projects None yet Labels None yet Milestone No milestone Assignees No one assigned 6 const char participants keusam commented Jan 7, 2015 Hi I am trying to work with libigl. I could run the first example FileIO but in the second I get some errores when I try to build my solution. I did: Additional include directories external\glew\include external\AntTweakBar\src external\glfw\include external\AntTweakBar\include eigen-eigen-6b38706d90a9 \libigl\include AdditionalLibraryDirectories external\glfw\lib\x64 from const char external\AntTweakBar\lib AdditionalDependencies AntTweakBar.lib glfw3.lib My errors are: Error 44 error C2440: '=' : cannot convert from 'char *' to 'LPWSTR' c:\users\samuel\downloads\libigl-master\libigl-master\include\igl\file_dialog_open.cpp 49 1 test Error 45 error C2440: '=' : cannot convert from 'const char [5]' to 'LPCWSTR' c:\users\samuel\downloads\libigl-master\libigl-master\include\igl\file_dialog_open.cpp 54 1 test Error 46 error C2440: '=' : cannot convert from 'char *' to 'LPWSTR' c:\users\samuel\downloads\libigl-master\libigl-master\include\igl\file_dialog_save.cpp 51 1 test Error 47 error C2440: '=' : cannot convert from 'const char [1]' to 'LPCWSTR' c:\users\samuel\downloads\libigl-master\libigl-master\include\igl\file_dialog_save.cpp 56 1 test kind regards and thanks a lot kybio commented Jan 26, 2015 Change 'char' to 'WCHAR'. alecjacobson commented Jan 29, 2015 keusam, did kybio's fix solve your problems? keusam commented Mar 3, 2015 Hi Sorry for my long response time. the fix solved two error messages. Now these two are left: Error 44 error C2440: '=' : cannot convert from 'const char [5]' to 'LPCWSTR' c:\users\samuel\downloads\libigl-master\libigl-master\include\igl\file_dialog_open.cpp 54 1 test Erro