访问冲突写入位置0x00000000

Question

When the application reaches these lines of code:

ID3D11ShaderResourceView* tempMeshSRV;
wstring MediaFilePath = DefaultPath + fileNamePath;
hr = D3DX11CreateShaderResourceViewFromFile( d3d11Device, MediaFilePath.c_str(), NULL, NULL, &tempMeshSRV, NULL );

I get the following error:

Unhandled exception at 0x011428b5 in Game.exe: 0xC0000005: Access violation writing location 0x00000000.

It was working fine until I added the "wstring MediaFilePath = DefaultPath + fileNamePath;" line. The resource it is trying to load is definitely in the correct location.

Answer 1

Do DefaultPath and fileNamePath have type "wstring" or "const wchar_t*"? If they're "const wchar_t*", then adding them won't do what you want it to. (It'll add the two pointer values).