OCX and Picture property -> HICON. How?

Nikhil Kothari -- nkothari@bluejack.ICS.UCI.EDU
Tuesday, February 20, 1996


Hello everyone,

	I am writing an OCX in VC++ 4.0, that has a picture property. This
picture property is actually an icon, which is then used in several
other Windows API calls in the form of HICON.

	I have been able to get the property, get/set methods and the
CPictureHolder set up using classwizard. However, I have not been able to
get an HICON into the icon stroed in the CPictureHolder. Does anyone
know how I can get the HICON using either CPictureHolder or LPPICTUREDISP
that is returned by CPictureHolder::GetPictureDisplatch().

	Please do not suggest the Render method, as I am not drawing the picture
into a DC, but using only the HICON. However, I am wondering if there is a
way to create a new icon (whose HICON I know) and then use the Render method
to draw into it.

	Any help is appreciated,

Thanks in advance,
Nikhil Kothari
nkothari@ics.uci.edu

---

John & Annette Elsbree -- elsbree@msn.com
Thursday, February 22, 1996

HICON GetIcon(CPictureHolder& pictureHolder)
{
    HICON hIcon = NULL;
    LPPICTUREDISP pDisp = pictureHolder.GetPictureDispatch();
    if (pDisp != NULL)
    {
        LPPICTURE pPic;
        if (SUCCEEDED(pDisp->QueryInterface(IID_IPicture, (void**)&pPic)))
        {
            short sType = PICTYPE_NONE;
            pPic->get_Type(&sType);
            if (sType == PICTYPE_ICON)
                pPic->get_Handle((OLE_HANDLE*)&hIcon);
            pPic->Release();
        }
        pDisp->Release();
    }
    return hIcon;
}

John

----------
From: 	owner-mfc-l@netcom.com on behalf of Nikhil Kothari

I have not been able to
get an HICON into the icon stroed in the CPictureHolder. Does anyone
know how I can get the HICON using either CPictureHolder or LPPICTUREDISP
that is returned by CPictureHolder::GetPictureDisplatch().

---

| Вернуться в корень Архива |