IShellPropSheetExt::AddPages method (shobjidl_core.h)

Άρθρο
10/13/2021

Adds one or more pages to a property sheet that the Shell displays for a file object. The Shell calls this method for each property sheet handler registered to the file type.

Syntax

HRESULT AddPages(
  [in] LPFNSVADDPROPSHEETPAGE pfnAddPage,
  [in] LPARAM                 lParam
);

Parameters

[in] pfnAddPage

Type: LPFNADDPROPSHEETPAGE

A pointer to a function that the property sheet handler calls to add a page to the property sheet. The function takes a property sheet handle returned by the CreatePropertySheetPage function and the lParam parameter passed to this method.

[in] lParam

Type: LPARAM

Handler-specific data to pass to the function pointed to by pfnAddPage.

Return value

Type: HRESULT

If successful, returns a one-based index to specify the page that should be initially displayed. See Remarks for more information.

Remarks

For each page that the property sheet handler needs to add to a property sheet, the handler fills a PROPSHEETPAGE structure, calls the CreatePropertySheetPage function, and then calls the function pointed to by pfnAddPage.

The LPFNADDPROPSHEETPAGE function pointer type is defined in Prsht.h as shown here. It accepts a handle to a PROPSHEETPAGE structure and function-defined data through lParam.

typedef BOOL (* LPFNADDPROPSHEETPAGE)(HPROPSHEETPAGE, LPARAM);

You can request through your implementation that a particular property sheet page be displayed first, instead of the default page. To do so, return the one-based index of the desired page relative to the pages you added. For example, if you added three property sheet pages, A, B, and C, and you want B to be the selected page, then the return value should be 2. Note that this return value is only a request. The property sheet might still display the default page.

Requirements

Requirement	Value
Minimum supported client	Windows XP [desktop apps only]
Minimum supported server	Windows 2000 Server [desktop apps only]
Target Platform	Windows
Header	shobjidl_core.h (include Shobjidl.h)
DLL	Shell32.dll (version 4.0 or later)

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