namespace Microsoft.Win32
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{
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//DCX定义
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public static partial class NativeMethods
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{
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/// <summary>
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/// Returns a DC that corresponds to the window rectangle rather than the client rectangle.
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/// </summary>
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public const int DCX_WINDOW = 0x00000001;
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/// <summary>
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/// Returns a DC from the cache, rather than the OWNDC or CLASSDC window. Essentially overrides CS_OWNDC and CS_CLASSDC.
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/// </summary>
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public const int DCX_CACHE = 0x00000002;
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/// <summary>
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/// Does not reset the attributes of this DC to the default attributes when this DC is released.
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/// </summary>
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public const int DCX_NORESETATTRS = 0x00000004;
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/// <summary>
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/// Excludes the visible regions of all child windows below the window identified by hWnd.
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/// </summary>
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public const int DCX_CLIPCHILDREN = 0x00000008;
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/// <summary>
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/// Excludes the visible regions of all sibling windows above the window identified by hWnd.
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/// </summary>
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public const int DCX_CLIPSIBLINGS = 0x00000010;
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/// <summary>
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/// 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.
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/// </summary>
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public const int DCX_PARENTCLIP = 0x00000020;
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/// <summary>
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/// The clipping region identified by hrgnClip is excluded from the visible region of the returned DC.
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/// </summary>
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public const int DCX_EXCLUDERGN = 0x00000040;
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/// <summary>
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/// The clipping region identified by hrgnClip is intersected with the visible region of the returned DC.
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/// </summary>
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public const int DCX_INTERSECTRGN = 0x00000080;
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/// <summary>
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/// DCX_EXCLUDEUPDATE
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/// </summary>
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public const int DCX_EXCLUDEUPDATE = 0x00000100;
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/// <summary>
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/// Reserved; do not use.
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/// </summary>
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public const int DCX_INTERSECTUPDATE = 0x00000200;
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/// <summary>
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/// Allows drawing even if there is a LockWindowUpdate call in effect that would otherwise exclude this window. Used for drawing during tracking.
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/// </summary>
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public const int DCX_LOCKWINDOWUPDATE = 0x00000400;
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/// <summary>
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/// Reserved; do not use.
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/// </summary>
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public const int DCX_VALIDATE = 0x00200000;
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}
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}
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