Class SafeDeviceContextHandle

A DeviceContext SafeHandle implementation

Inheritance
System.Object
SafeDcHandle
SafeDeviceContextHandle
Namespace: Dapplo.Windows.Gdi32.SafeHandles
Assembly: Dapplo.Windows.Gdi32.dll
Syntax
public class SafeDeviceContextHandle : SafeDcHandle

Constructors

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SafeDeviceContextHandle()

Default constructor is needed to support marshalling!!

Declaration
public SafeDeviceContextHandle()

Methods

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FromGraphics(Graphics, Boolean)

Create a SafeDeviceContextHandle from a Graphics object

Declaration
public static SafeDeviceContextHandle FromGraphics(Graphics graphics, bool disposeGraphics = false)
Parameters
Type Name Description
Graphics graphics

Graphics object
System.Boolean disposeGraphics
Returns
Type Description
SafeDeviceContextHandle

SafeDeviceContextHandle
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FromHWnd(IntPtr)

Create a SafeDeviceContextHandle from a hWnd

Declaration
public static SafeDeviceContextHandle FromHWnd(IntPtr hWnd)
Parameters
Type Name Description
IntPtr hWnd

IntPtr for hWnd
Returns
Type Description
SafeDeviceContextHandle

SafeDeviceContextHandle
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ReleaseHandle()

Call graphics.ReleaseHdc

Declaration
protected override bool ReleaseHandle()
Returns
Type Description
System.Boolean

always true
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SelectObject(SafeHandle)

The SelectObject function selects an object into the device context (DC) which this SafeDeviceContextHandle represents. The new object replaces the previous object of the same type.

Declaration
public SafeSelectObjectHandle SelectObject(SafeHandle newHandle)
Parameters
Type Name Description
SafeHandle newHandle

SafeHandle for the new object
Returns
Type Description
SafeSelectObjectHandle

Replaced object