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cannot convert const wchar_t to 'const_char' for argument 2 in MessageBOX etc etc


cannot convert const wchar_t to 'const_char' for argument 2 in MessageBOX etc etc

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cannot convert const wchar_t to 'const_char' for argument 2 in MessageBOX etc etc
Tag : cpp , By : Mr. Tacos
Date : November 24 2020, 03:41 PM


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error C2440: 'default argument': cannot convert from 'const wchar_t [1]' to 'BSTR'


Tag : qt , By : jrf
Date : March 29 2020, 07:55 AM
To fix the issue you can do It's because some Windows headers violate strictStrings rules. You could try loosening checking even more:
win32: QMAKE_CXXFLAGS_RELEASE -= -Zc:strictStrings
win32: QMAKE_CFLAGS_RELEASE -= -Zc:strictStrings
win32: QMAKE_CFLAGS -= -Zc:strictStrings
win32: QMAKE_CXXFLAGS -= -Zc:strictStrings

win32 atoi issue which can't convert argument 1 from 'wchar_t [5]' to 'const char *


Tag : cpp , By : Guy Kastenbaum
Date : March 29 2020, 07:55 AM
I wish this help you atoi is for const char * strings; what you have is a wchar_t string. char and wchar_t are not interchangeable. Use the corresponding function for wchar_t strings; _wtoi:
ii = _wtoi(str_a);
iii = _wtoi(str_d);

cannot convert argument 1 from const wchar_t[9] to wchar_t


Tag : cpp , By : user171555
Date : March 29 2020, 07:55 AM
it should still fix some issue Literal strings in C++ are really constant arrays of the character type, that's why L"test.png" is mentioned as the typeconst wchar_t [9] (the size is 9 to fit the terminator).
As any other array it can decay to a pointer to its first element, and this pointer have the type const wchar_t*.
SpriteSheet(const wchar_t* filename, Graphics*gfx);
//          ^^^^^
// Note the const here

'default argument' : cannot convert from 'const char [1]' to 'const wchar_t *'


Tag : cpp , By : SilverRuby
Date : March 29 2020, 07:55 AM

cannot convert argument 1 from 'const char *' to 'const wchar_t *'


Tag : cpp , By : user107021
Date : March 29 2020, 07:55 AM
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