From Tracker Software PDF SDK
Changes command pane's client area based on the pane's location.
HRESULT SetParentClientArea([in, out] RECT* stNewClientArea, [in, defaultvalue(0)] VARIANT_BOOL bCalcOnly);
- [in, out] Pointer to RECT containing the new pane's client area.
- [in, defaultvalue(0)] Value of VARIANT_BOOL that indicates whether the area should only be calculated, not changed.
Returns S_OK if operation was successful or error code in other cases.