编译错误。

[MorbidangeL]

HANDLE m_hShareInfo;

typedef struct share_info3d
{
double cx,cy;
double w,h;
}SHARE_INFO3D;

SHARE_INFO3D m_shareInfo;

CWnd *m_pWnd = NULL;

m_pWnd = CWnd::FindWindow(NULL,"3D Display");

if(m_shareInfo == NULL) /////////////////row 79
{// Create share memory
m_shareInfo = (SHARE_INFO3D *)::MapViewOfFile(m_hShareInfo,FILE_MAP_WRITE,0,0,0);


}


D:\VCProjects\ProjectBSC\ProjectBSC.cpp(79) : error C2678: binary '==' : no operator defined which takes a left-hand operand of type 'struct CProjectBSCApp::InitInstance::share_info3d' (or there is no acceptable conversion)

[一个傻冒]

又不是指针,你用==比个啥劲呢.

[MorbidangeL]

那请问这里应怎么比呢？

[Atomictry]

SHARE_INFO3D *pshareInfo = NULL;
if(pshareInfo == NULL) /////////////////row 79
{// Create share memory
pshareInfo = (SHARE_INFO3D *)::MapViewOfFile(m_hShareInfo,FILE_MAP_WRITE,0,0,0);


}