Inserts a new thumbnail into a tabbed-document interface (TDI) or multiple-document interface (MDI) application's group flyout or moves an existing thumbnail to a new position in the application's group.
HRESULT SetTabOrder( HWND hwndTab, HWND hwndInsertBefore );
The handle of the tab window whose thumbnail is being placed. This value is required, must already be registered through ITaskbarList3::RegisterTab, and cannot be NULL.
The handle of the tab window whose thumbnail that hwndTab is inserted to the left of. This handle must already be registered through ITaskbarList3::RegisterTab. If this value is NULL, the new thumbnail is added to the end of the list.
If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.
This method must be called for the thumbnail to be shown in the group. Call it after you have called ITaskbarList3::RegisterTab.
|Minimum supported client||Windows 7 [desktop apps only]|
|Minimum supported server||Windows Server 2008 R2 [desktop apps only]|
|Header||shobjidl_core.h (include Shobjidl.h)|