mfc对excel操作时没有注册类

Question

mfc对excel操作时 m_ExcelApp.CreateDispatch("Excel.Application",&e)失败 没有注册类

Answer 1

HRESULT hr;
hr = CoInitialize(NULL);
//ASSERT(!FAILED(hr));
if(FAILED(hr))
{
AfxMessageBox("Failed to call Coinitialize()");
}
要先初始化