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PSM_HWNDTOINDEX message

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Takes the window handle of the property sheet page and returns its zero-based index. You can send this message explicitly or use the PropSheet_HwndToIndex macro.

Parameters

wParam

Handle to the page's window.

lParam

Must be zero.

Return value

Returns the zero-based index of the property sheet page specified by wParam if successful. Otherwise, it returns -1.

Requirements

Requirement Value
Minimum supported client
 Windows Vista [desktop apps only]
Minimum supported server
 Windows Server 2003 [desktop apps only]
Header
Prsht.h