OLEUICHANGEICON  3MU61A5

The OLEUICHANGEICON structure contains information that the OLE User Interface Library uses to initialize the Change Icon dialog box, and it contains space for the library to return information when the dialog box is dismissed.

typedef struct tagOLEUICHANGEICON

{ 

// These IN fields are standard across all OLEUI dialog box functions.

    DWORD          cbStruct;

    DWORD          dwFlags;

    HWND           hWndOwner;

    LPCSTR         lpszCaption;

    LPFNOLEUIHOOK  lpfnHook;

    LPARAM         lCustData;

    HINSTANCE      hInstance;

    LPCSTR         lpszTemplate;

    HRSRC          hResource;

 // Specifics for OLEUICHANGEICON.

    HGLOBAL  hMetaPict;

    CLSID    clsid;

    char     szIconExe[OLEUI_CCHPATHMAX];

    int      cchIconExe;

} OLEUICHANGEICON, *POLEUICHANGEICON, FAR *LPOLEUICHANGEICON;

Members

cbStruct

Size of the structure in bytes. This field must be filled on input.

dwFlags

On input, specifies the initialization and creation flags. On exit, it specifies the user s choices. It can be a combination of the following flags:

CIF_SHOWHELP

Dialog box will display a Help button.

CIF_SELECTCURRENT

On input, selects the Current radio button on initialization. On exit, specifies that the user selected Current.

CIF_SELECTDEFAULT

On input, selects the Default radio button on initialization. On exit, specifies that the user selected Default.

CIF_SELECTFROMFILE

On input, selects the From File radio button on initialization. On exit, specifies that the user selected From File.

CIF_USEICONEXE

Input only. Extracts the icon from the executable specified in the szIconExe member, instead of retrieving it from the class. This is useful for OLE embedding or linking to non-OLE files.

hWndOwner

Window that owns the dialog box. It should not be NULL.

lpszCaption

Pointer to a string to be used as the title of the dialog box. If NULL, then the library uses Change Icon.

lpfnHook

Pointer to a hook function that processes messages intended for the dialog box. The hook function must return zero to pass a message that it didn t process back to the dialog box procedure in the library. The hook function must return a non-zero value to prevent the library s dialog box procedure from processing a message it has already processed.

lCustData

Application-defined data that the library passes to the hook function pointed to by the lpfnHook member. The library passes a pointer to the OLEUICHANGEICON structure in the lParam parameter of the WM_INITDIALOG message; this pointer can be used to retrieve the lCustData member.

hInstance

Instance that contains a dialog box template specified by the lpTemplateName member.

lpszTemplate

Pointer to a null-terminated string that specifies the name of the resource file for the dialog box template that is to be substituted for the library s Change Icon dialog box template.

hResource

Customized template handle.

hMetaPict

Current and final image. The source of the icon is embedded in the metafile itself.

clsid

Input only. The class to use to get the Default icon.

szIconExe

Input only. Pointer to the executable to extract the default icon from. This member is ignored unless CIF_USEICONEXE is included in the dwFlags parameter and an attempt to retrieve the class icon from the specified CLSID fails.

cchIconExe

Input only. The number of characters in szIconExe. This member is ignored unless CIF_USEICONEXE is included in the dwFlags member.

See Also