Creating an IWebBrowser2 control

Question

I just want to successfully add it to my window, and it has been surprisingly difficult.

I've tried

#include "windef.h"
#include "winbase.h"
#include "initguid.h"
#include "ole2.h"
#include "olectl.h"
#include "shobjidl.h"
#include "shlguid.h"
#include "exdispid.h"
#include <objidl.h>
#include "OleIdl.h"
#include "Objbase.h" 

#include <exdisp.h>
#include <exdispid.h>

...

IWebBrowser2* pBrowser2;
HRESULT hr = CoCreateInstance(CLSID_InternetExplorer, NULL,
    CLSCTX_ALL, IID_IWebBrowser2, (void**)&pBrowser2);

Getting

error: 'CLSID_InternetExplorer' undeclared (first use in this function)
     HRESULT hr = CoCreateInstance(CLSID_InternetExplorer,

I've also tried

CoCreateInstance(CLSID_WebBrowser, NULL, CLSCTX_LOCAL_SERVER, 
                   IID_IWebBrowser2, (void**)&pBrowser2);

This one at least compiles, but nothing is added to the window:

    hr = OleCreate(&CLSID_WebBrowser, &IID_IOleObject, 1/*OLERENDER_DRAW*/, 0,
                            &ClientSite, &Storage, (void**)&mpWebObject);

I tried all headers and libraries I could find on the net (as you can see).

Here are the libraries I link:

gcc -lmingw32 -mwindows  -luser32 -lgdiplus -lole32 -luuid -loleaut32 -lcomctl32 -lcomdlg32 -ladvapi32 -loleaut32 -lshdocvw -lmf -lmfuuid

Thanks!

Answer 1

You could try MinGW-w64 .

This is a fork of MinGW which , in addition to supporting both 32-bit and 64-bit builds, is under much more active development. In particular, having improved Windows API headers.

Answer 2

Apparently MinGW doesn't support IWebBrowser2. The code worked fine in Visual Studio.

Answer 3

Start by including these header files first:

#include <windows.h>
#include <objbase.h>
#include <ExDisp.h>
#include <ExDispid.h>

Then this:

IWebBrowser2* pBrowser2 = nullptr;
HRESULT hr;
hr = CoCreateInstance(__uuidof(WebBrowser), NULL, CLSCTX_INPROC, __uuidof(IWebBrowser2), (void**)pBrowser2);

The use of __uuidof macro takes resolves the linkage issues to externally defined guids.