Error 0x800705A5

Value: -2147023451 | 0x800705A5 | 2147943845

What does it mean ?

ERROR_NON_MDICHILD_WINDOW  
Cannot process a message from a window that is not a multiple document interface (MDI) window.
Value: 1445 | 0x05A5 | 0b0000010110100101

Where does it come from ?

FACILITY_WIN32  
Provides a way to handle error codes from functions in the Win32 API as an HRESULT. (Error codes in 16 - bit OLE that duplicated Win32 error codes have also been changed to FACILITY_WIN32)
Value: 7 | 0x007 | 0b00000111

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