VC:API查看錯誤碼和資訊

 

if((m_hBitMap=(HBITMAP)::LoadImage(NULL,filepath,IMAGE_BITMAP,0,0,LR_DEFAULTSIZE|LR_LOADFROMFILE))==NULL)

{

LPVOID lpMsgBuf;

DWORD dw = ::GetLastError(); 

FormatMessage(

FORMAT_MESSAGE_ALLOCATE_BUFFER | 

FORMAT_MESSAGE_FROM_SYSTEM |

FORMAT_MESSAGE_IGNORE_INSERTS,

NULL,

dw,

MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),

(LPTSTR)&lpMsgBuf,

0, NULL );

// Display the error message and exit the process

::MessageBox(NULL,(LPCTSTR)lpMsgBuf,TEXT("ERROR"),MB_ICONERROR); 

LocalFree(lpMsgBuf);

return ;

}