Referencing GUIDs

Question

I\'m trying to capture an event and reference a GUID to see which event it is. The code is below:

DWORD WINAPI AvisionEventProc(LPVOID lpParam){
    //HANDL         


        

Answer 1

The DEFINE_GUID macro either defines a named GUID as a static, or just does a forward declaration to actually be done somewhere else. Your code perhaps only have the latter, and the symbols don't have actual initialization within the project.

See:

• How to avoid error "LNK2001 unresolved external" by using DEFINE_GUID
• INITGUID: An Explanation
• How does the DEFINE_GUID macro work? - at the bottom of the page

Answer 2

#include <initguid.h>should be added. That will help.