https://mitov.com/wiki/index.php?action=history&feed=atom&title=Class_IGDIPlus.TGPRegion 2026-05-12T02:04:10Z Revision history for this page on the wiki MediaWiki 1.17.0 https://mitov.com/wiki/index.php?title=Class_IGDIPlus.TGPRegion&diff=11083&oldid=prev 2012-10-18T17:18:26Z

<p>Automated Syncronization with Documentation</p> <p><b>New page</b></p><div>&lt;b&gt;&lt;span style=&quot;color:red&quot;&gt;<br /> This is a Beta Read Only version of this page. <br /> Please review and send recommendations to [mailto:mitov@mitov.com mitov@mitov.com]. <br /> We will enable the editing as soon as we are happy with the overall Wiki site.<br /> &lt;/span&gt;&lt;/b&gt;<br /> <br /> '''Package:''' [[Package SignalLabBasicPkg|SignalLabBasicPkg]]<br /> <br /> '''Unit:''' [[Unit IGDIPlus|IGDIPlus]]<br /> <br /> '''Inherits:''' [[Class IGDIPlus.TGPBase|TGPBase]]<br /> <br /> == Syntax ==<br /> === Delphi: ===<br /> &lt;code&gt;<br /> '''type''' TGPRegion = '''class'''( [[Class IGDIPlus.TGPBase|TGPBase, IGPRegion]] )<br /> &lt;/code&gt;<br /> === C++ Builder: ===<br /> &lt;code&gt;<br /> '''class''' TGPRegion : '''public''' [[Class IGDIPlus.TGPBase|TGPBase]]<br /> &lt;/code&gt;<br /> === Visual C++ (MFC): ===<br /> &lt;code&gt;<br /> '''class''' CTGPRegion : '''public''' [[Class IGDIPlus.TGPBase|CTGPBase]]<br /> &lt;/code&gt;<br /> === C# (.NET): ===<br /> &lt;code&gt;<br /> '''public ref class''' TGPRegion : [[Class IGDIPlus.TGPBase|Mitov.SignalLab.Base]]<br /> &lt;/code&gt;<br /> == Summary ==<br /> Describes an area of the display surface. <br /> <br /> == Description ==<br /> The [[Class IGDIPlus.TGPRegion|TGPRegion]] class describes an area of the display surface.<br /> The area can be any shape. In other words, the boundary of<br /> the area can be a combination of curved and straight lines.<br /> Regions can also be created from the interiors of rectangles,<br /> paths, or a combination of these. Regions are used in<br /> clipping and hit-testing operations.<br /> Remarks<br /> A GDI+ region is stored in world coordinates whereas a GDI<br /> region is stored in device coordinates. Therefore, a GDI+<br /> region is scalable and a GDI region is not. For more<br /> information, see Scalable Regions<br /> <br /> <br /> <br /> An application can use regions to clip the output of drawing<br /> operations. The Window Manager uses regions to define the<br /> drawing area of windows. These regions are called clipping<br /> regions. An application can also use regions in hit-testing<br /> operations, such as checking whether a point is in a region<br /> or whether a rectangle intersects a region. For more<br /> information, see &quot;Regions&quot;, &quot;Clipping&quot;, and &quot;Using Regions&quot;<br /> on MSDN.<br /> <br /> == Methods ==<br /> <br /> === Public ===<br /> *[[Method function IGDIPlus.TGPRegion.FromHRGN(HRGN) : TGPRegion|function FromHRGN(hRgn : HRGN) : TGPRegion]] - Creates a Microsoft Windows GDI+Region object from a Windows Graphics Device Interface (GDI) region. <br /> *[[Method function IGDIPlus.TGPRegion.Clone() : TGPRegion|function Clone() : TGPRegion]]<br /> *[[Method function IGDIPlus.TGPRegion.MakeInfinite() : TGPRegion|function MakeInfinite() : TGPRegion]]<br /> *[[Method function IGDIPlus.TGPRegion.MakeEmpty() : TGPRegion|function MakeEmpty() : TGPRegion]]<br /> *[[Method function IGDIPlus.TGPRegion.GetDataSize() : Cardinal|function GetDataSize() : Cardinal]]<br /> *[[Method function IGDIPlus.TGPRegion.GetData() : TGPByteArray|function GetData() : TGPByteArray]]<br /> *[[Method function IGDIPlus.TGPRegion.Intersect(TGPRect) : TGPRegion|function Intersect(rect : TGPRect) : TGPRegion]]<br /> *[[Method function IGDIPlus.TGPRegion.IntersectF(TGPRectF) : TGPRegion|function IntersectF(rect : TGPRectF) : TGPRegion]]<br /> *[[Method function IGDIPlus.TGPRegion.Intersect(IGPGraphicsPath) : TGPRegion|function Intersect(path : IGPGraphicsPath) : TGPRegion]]<br /> *[[Method function IGDIPlus.TGPRegion.Intersect(IGPRegion) : TGPRegion|function Intersect(region : IGPRegion) : TGPRegion]]<br /> *[[Method function IGDIPlus.TGPRegion.Union(TGPRect) : TGPRegion|function Union(rect : TGPRect) : TGPRegion]]<br /> *[[Method function IGDIPlus.TGPRegion.UnionF(TGPRectF) : TGPRegion|function UnionF(rect : TGPRectF) : TGPRegion]]<br /> *[[Method function IGDIPlus.TGPRegion.Union(IGPGraphicsPath) : TGPRegion|function Union(path : IGPGraphicsPath) : TGPRegion]]<br /> *[[Method function IGDIPlus.TGPRegion.Union(IGPRegion) : TGPRegion|function Union(region : IGPRegion) : TGPRegion]]<br /> *[[Method function IGDIPlus.TGPRegion.XorRegion(TGPRect) : TGPRegion|function XorRegion(rect : TGPRect) : TGPRegion]]<br /> *[[Method function IGDIPlus.TGPRegion.XorRegionF(TGPRectF) : TGPRegion|function XorRegionF(rect : TGPRectF) : TGPRegion]]<br /> *[[Method function IGDIPlus.TGPRegion.XorRegion(IGPGraphicsPath) : TGPRegion|function XorRegion(path : IGPGraphicsPath) : TGPRegion]]<br /> *[[Method function IGDIPlus.TGPRegion.XorRegion(IGPRegion) : TGPRegion|function XorRegion(region : IGPRegion) : TGPRegion]]<br /> *[[Method function IGDIPlus.TGPRegion.Exclude(TGPRect) : TGPRegion|function Exclude(rect : TGPRect) : TGPRegion]]<br /> *[[Method function IGDIPlus.TGPRegion.ExcludeF(TGPRectF) : TGPRegion|function ExcludeF(rect : TGPRectF) : TGPRegion]]<br /> *[[Method function IGDIPlus.TGPRegion.Exclude(IGPGraphicsPath) : TGPRegion|function Exclude(path : IGPGraphicsPath) : TGPRegion]]<br /> *[[Method function IGDIPlus.TGPRegion.Exclude(IGPRegion) : TGPRegion|function Exclude(region : IGPRegion) : TGPRegion]]<br /> *[[Method function IGDIPlus.TGPRegion.Complement(TGPRect) : TGPRegion|function Complement(rect : TGPRect) : TGPRegion]]<br /> *[[Method function IGDIPlus.TGPRegion.ComplementF(TGPRectF) : TGPRegion|function ComplementF(rect : TGPRectF) : TGPRegion]]<br /> *[[Method function IGDIPlus.TGPRegion.Complement(IGPGraphicsPath) : TGPRegion|function Complement(path : IGPGraphicsPath) : TGPRegion]]<br /> *[[Method function IGDIPlus.TGPRegion.Complement(IGPRegion) : TGPRegion|function Complement(region : IGPRegion) : TGPRegion]]<br /> *[[Method function IGDIPlus.TGPRegion.TranslateF(Single;Single) : TGPRegion|function TranslateF(dx : Single; dy : Single) : TGPRegion]]<br /> *[[Method function IGDIPlus.TGPRegion.Translate(Integer;Integer) : TGPRegion|function Translate(dx : Integer; dy : Integer) : TGPRegion]]<br /> *[[Method function IGDIPlus.TGPRegion.Transform(IGPMatrix) : TGPRegion|function Transform(matrix : IGPMatrix) : TGPRegion]]<br /> *[[Method function IGDIPlus.TGPRegion.GetBounds(IGPGraphics) : TGPRect|function GetBounds(g : IGPGraphics) : TGPRect]]<br /> *[[Method function IGDIPlus.TGPRegion.GetBoundsF(IGPGraphics) : TGPRectF|function GetBoundsF(g : IGPGraphics) : TGPRectF]]<br /> *[[Method function IGDIPlus.TGPRegion.GetHRGN(IGPGraphics) : HRGN|function GetHRGN(g : IGPGraphics) : HRGN]]<br /> *[[Method function IGDIPlus.TGPRegion.IsEmpty(IGPGraphics) : Boolean|function IsEmpty(g : IGPGraphics) : Boolean]]<br /> *[[Method function IGDIPlus.TGPRegion.IsInfinite(IGPGraphics) : Boolean|function IsInfinite(g : IGPGraphics) : Boolean]]<br /> *[[Method function IGDIPlus.TGPRegion.IsVisible(Integer;Integer;IGPGraphics) : Boolean|function IsVisible(x : Integer; y : Integer; g : IGPGraphics) : Boolean]]<br /> *[[Method function IGDIPlus.TGPRegion.IsVisible(TGPPoint;IGPGraphics) : Boolean|function IsVisible(point : TGPPoint; g : IGPGraphics) : Boolean]]<br /> *[[Method function IGDIPlus.TGPRegion.IsVisibleF(Single;Single;IGPGraphics) : Boolean|function IsVisibleF(x : Single; y : Single; g : IGPGraphics) : Boolean]]<br /> *[[Method function IGDIPlus.TGPRegion.IsVisibleF(TGPPointF;IGPGraphics) : Boolean|function IsVisibleF(point : TGPPointF; g : IGPGraphics) : Boolean]]<br /> *[[Method function IGDIPlus.TGPRegion.IsVisible(Integer;Integer;Integer;Integer;IGPGraphics) : Boolean|function IsVisible(x : Integer; y : Integer; width : Integer; height : Integer; g : IGPGraphics) : Boolean]]<br /> *[[Method function IGDIPlus.TGPRegion.IsVisible(TGPRect;IGPGraphics) : Boolean|function IsVisible(rect : TGPRect; g : IGPGraphics) : Boolean]]<br /> *[[Method function IGDIPlus.TGPRegion.IsVisibleF(Single;Single;Single;Single;IGPGraphics) : Boolean|function IsVisibleF(x : Single; y : Single; width : Single; height : Single; g : IGPGraphics) : Boolean]]<br /> *[[Method function IGDIPlus.TGPRegion.IsVisibleF(TGPRectF;IGPGraphics) : Boolean|function IsVisibleF(rect : TGPRectF; g : IGPGraphics) : Boolean]]<br /> *[[Method function IGDIPlus.TGPRegion.EqualsRegion(IGPRegion;IGPGraphics) : Boolean|function EqualsRegion(region : IGPRegion; g : IGPGraphics) : Boolean]]<br /> *[[Method function IGDIPlus.TGPRegion.GetRegionScansCount(IGPMatrix) : Cardinal|function GetRegionScansCount(matrix : IGPMatrix) : Cardinal]]<br /> *[[Method function IGDIPlus.TGPRegion.GetRegionScansF(IGPMatrix) : TGPRectFArray|function GetRegionScansF(matrix : IGPMatrix) : TGPRectFArray]]<br /> *[[Method function IGDIPlus.TGPRegion.GetRegionScans(IGPMatrix) : TGPRectArray|function GetRegionScans(matrix : IGPMatrix) : TGPRectArray]]<br /> <br /> == From [[Class IGDIPlus.TGPBase|TGPBase]] ==<br /> <br /> == Methods ==<br /> <br /> === Public ===<br /> *[[Method function IGDIPlus.TGPBase.NewInstance() : TObject|function NewInstance() : TObject]]<br /> *[[Method procedure IGDIPlus.TGPBase.FreeInstance()|procedure FreeInstance()]]<br /> <br /> [[Category:Classes]]</div>

David Alm