Error C2440 : cannot cast 'System::Drawing::Bitmap' into 'System::Object'

A PC reboot did the trick. No idea whatsoever what could have caused this to not work since Bitmap inherits Object...

Anyway, Farewell.


  1. Kabir

    • 2017/12/25

    The compiler generates C2440 when it can't convert from one type to another, either implicitly or by using the specified cast or conversion 

  2. Shepherd

    • 2021/6/30

    The compiler cannot cast from type1 to type2. C2440 can be caused if you attempt to initialize a non-const char* (or wchar_t*) by using a string literal in C++ code, when the compiler conformance option /Zc:strictStrings is set. In C, the type of a string literal is array of char, but in C++, it is array of const char.

  3. Zyon

    • 2020/7/20

    Your MQUAD variable is an array, not a pointer, so you can't assign to it (thanks to Remy Lebeau's comment). If you declare it as:

  4. Charles

    • 2017/3/2

    Hi. I am migrating my application from vc++6.0 to vc++2013. I am getting error which iam unable to fix. I am sending the code and higlighting the error line in the code.

  5. Yahya

    • 2020/2/18

    all became clear, initializing from cannot convert c2440 error share your opinion. something also seems very - 2021.

  6. Tony

    • 2020/1/4

    Connect and share knowledge within a single location that is structured and easy to search. Learn more. error C2440: 'static_cast' : cannot convert from 'void (__thiscall Visualizza::* )(char [])' to 'AFX_PMSG'. Ask Question.

  7. Gray

    • 2019/11/4

    c++:error C2440: '<function-style-cast>' : cannot convert from 'A<TYPE>' to 'B<TYPE>'. I have a base class A and it has a subclass B. A overrides the + 

  8. Langston

    • 2019/2/5

    Solution 3. Your code has (at least) two problems. You are trying to assign a block of dynamic (heap) allocated memory to an array (which is, by the way, already allocated on the stack). You are assigning incompatible types, w_char and unsigned char.

  9. Grassi

    • 2015/11/11

    But it's giving me error C2440 cannot cast from System::Drawing::Bitmap to System::Object. I didnt have any problem casting a Bitmap to an Object in C# but now 

  10. Lopez

    • 2016/10/23

    1> Conversion from integral type to pointer type requires reinterpret_cast, C-style cast or function-style cast 1>c:\documents and settings\cory\my documents\visual studio 2008\projects\test v1\test v1\testv1.cpp(21) : error C2440: 'initializing' : cannot convert from 'int' to 'const BYTE **'

  11. Benjamin

    • 2018/9/8

    error C2440 : cannot convert from 'void *' to 'char *'. Conversion from 'void*' to pointer to non-'void' requires an explicit cast.

  12. Sullivan

    • 2021/5/24

    on the line with the SINK_ENTRY I get the error: error C2440: 'static_cast' : cannot convert from '_atl_event_classtype *' to. 'ATL::_IDispEventLocator<nID,piid> *'. Here is the complete code: #include "stdafx.h". #import "c:\\windows\\system32\\macromed\\flash\\flash9e.ocx". rename_namespace ("FLASH")

  13. Joshua

    • 2018/9/15

    the compiler emits the error C2440 on both of the static cast lines. error C2440: 'static_cast': cannot convert from 'float' to 'my_type' 

  14. Tony

    • 2015/9/25

    I am trying to write an algorithm for finding a subset of a given vector that has a certain requested sum. I am trying to use the 'meet in the middle' technique as described in 'the competitive

  15. Felix

    • 2021/5/14

    error C2440: '<function-style-cast>' : cannot convert from 'UINT' to 'CString'. No constructor could take the source type, or constructor overload 

  16. Justice

    • 2015/3/24

    August 12, 2020, 03:55. Smile error C2440: '=': cannot convert from 'thread_struct *' to 'Thread' and other errors. THA SEANGHAI. New Member. THA SEANGHAI.

  17. Donald

    • 2017/11/23

    Solution 3 · You are trying to assign a block of dynamic (heap) allocated memory to an array (which is, by the way, already allocated on the 

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