/// <summary>Values to pass to the GetDCEx method.</summary>
[Flags()]
private enum DeviceContextValues : uint
{
/// <summary>DCX_WINDOW: Returns a DC that corresponds to the window rectangle rather
/// than the client rectangle.</summary>
Window = 0x00000001,
/// <summary>DCX_CACHE: Returns a DC from the cache, rather than the OWNDC or CLASSDC
/// window. Essentially overrides CS_OWNDC and CS_CLASSDC.</summary>
Cache = 0x00000002,
/// <summary>DCX_NORESETATTRS: Does not reset the attributes of this DC to the
/// default attributes when this DC is released.</summary>
NoResetAttrs = 0x00000004,
/// <summary>DCX_CLIPCHILDREN: Excludes the visible regions of all child windows
/// below the window identified by hWnd.</summary>
ClipChildren = 0x00000008,
/// <summary>DCX_CLIPSIBLINGS: Excludes the visible regions of all sibling windows
/// above the window identified by hWnd.</summary>
ClipSiblings = 0x00000010,
/// <summary>DCX_PARENTCLIP: Uses the visible region of the parent window. The
/// parent's WS_CLIPCHILDREN and CS_PARENTDC style bits are ignored. The origin is
/// set to the upper-left corner of the window identified by hWnd.</summary>
ParentClip = 0x00000020,
/// <summary>DCX_EXCLUDERGN: The clipping region identified by hrgnClip is excluded
/// from the visible region of the returned DC.</summary>
ExcludeRgn = 0x00000040,
/// <summary>DCX_INTERSECTRGN: The clipping region identified by hrgnClip is
/// intersected with the visible region of the returned DC.</summary>
IntersectRgn = 0x00000080,
/// <summary>DCX_EXCLUDEUPDATE: Unknown...Undocumented</summary>
ExcludeUpdate = 0x00000100,
/// <summary>DCX_INTERSECTUPDATE: Unknown...Undocumented</summary>
IntersectUpdate = 0x00000200,
/// <summary>DCX_LOCKWINDOWUPDATE: Allows drawing even if there is a LockWindowUpdate
/// call in effect that would otherwise exclude this window. Used for drawing during
/// tracking.</summary>
LockWindowUpdate = 0x00000400,
/// <summary>DCX_VALIDATE When specified with DCX_INTERSECTUPDATE, causes the DC to
/// be completely validated. Using this function with both DCX_INTERSECTUPDATE and
/// DCX_VALIDATE is identical to using the BeginPaint function.</summary>
Validate = 0x00200000,
}
''' <summary>Values to pass to the GetDCEx method.</summary>
<Flags()> _
Private Enum DeviceContextValues As UInteger
''' <summary>DCX_WINDOW: Returns a DC that corresponds to the window rectangle rather
''' than the client rectangle.</summary>
Window = &H1
''' <summary>DCX_CACHE: Returns a DC from the cache, rather than the OWNDC or CLASSDC
''' window. Essentially overrides CS_OWNDC and CS_CLASSDC.</summary>
Cache = &H2
''' <summary>DCX_NORESETATTRS: Does not reset the attributes of this DC to the
''' default attributes when this DC is released.</summary>
NoResetAttrs = &H4
''' <summary>DCX_CLIPCHILDREN: Excludes the visible regions of all child windows
''' below the window identified by hWnd.</summary>
ClipChildren = &H8
''' <summary>DCX_CLIPSIBLINGS: Excludes the visible regions of all sibling windows
''' above the window identified by hWnd.</summary>
ClipSiblings = &H10
''' <summary>DCX_PARENTCLIP: Uses the visible region of the parent window. The
''' parent's WS_CLIPCHILDREN and CS_PARENTDC style bits are ignored. The origin is
''' set to the upper-left corner of the window identified by hWnd.</summary>
ParentClip = &H20
''' <summary>DCX_EXCLUDERGN: The clipping region identified by hrgnClip is excluded
''' from the visible region of the returned DC.</summary>
ExcludeRgn = &H40
''' <summary>DCX_INTERSECTRGN: The clipping region identified by hrgnClip is
''' intersected with the visible region of the returned DC.</summary>
IntersectRgn = &H80
''' <summary>DCX_EXCLUDEUPDATE: Unknown...Undocumented</summary>
ExcludeUpdate = &H100
''' <summary>DCX_INTERSECTUPDATE: Unknown...Undocumented</summary>
IntersectUpdate = &H200
''' <summary>DCX_LOCKWINDOWUPDATE: Allows drawing even if there is a LockWindowUpdate
''' call in effect that would otherwise exclude this window. Used for drawing during
''' tracking.</summary>
LockWindowUpdate = &H400
''' <summary>DCX_VALIDATE When specified with DCX_INTERSECTUPDATE, causes the DC to
''' be completely validated. Using this function with both DCX_INTERSECTUPDATE and
''' DCX_VALIDATE is identical to using the BeginPaint function.</summary>
Validate = &H200000
End Enum
Used with the GetDCEx function