winstd::window_dc Class Reference

Device context wrapper class. More...

#include <WinStd/GDI.h>

Inheritance diagram for winstd::window_dc:

Public Member Functions
	window_dc () noexcept
	Initializes an empty device context.
	window_dc (handle_type h, HWND hwnd) noexcept
	Initializes a device context from existing data.
	window_dc (window_dc &&h) noexcept
	Move an existing device context.
window_dc &	operator= (window_dc &&h) noexcept
	Copy an existing device context.
virtual	~window_dc ()
	Releases a device context (DC), freeing it for use by other applications.
Public Member Functions inherited from winstd::handle< HDC, NULL >
	handle () noexcept
	Initializes a new class instance with the object handle set to INVAL.
	handle (handle_type h) noexcept
	Initializes a new class instance with an already available object handle.
	handle (handle< handle_type, INVAL > &&h) noexcept
	Move constructor.
handle< handle_type, INVAL > &	operator= (handle_type h) noexcept
	Attaches already available object handle.
handle< handle_type, INVAL > &	operator= (handle< handle_type, INVAL > &&h) noexcept
	Move assignment.
	operator handle_type () const
	Auto-typecasting operator.
handle_type *&	operator* () const
	Returns the object handle value when the object handle is a pointer to a value (class, struct, etc.).
handle_type *	operator& ()
	Returns the object handle reference.
handle_type	operator-> () const
	Provides object handle member access when the object handle is a pointer to a class or struct.
bool	operator! () const
	Tests if the object handle is invalid.
bool	operator< (handle_type h) const
	Is handle less than?
bool	operator<= (handle_type h) const
	Is handle less than or equal to?
bool	operator>= (handle_type h) const
	Is handle greater than or equal to?
bool	operator> (handle_type h) const
	Is handle greater than?
bool	operator!= (handle_type h) const
	Is handle not equal to?
bool	operator== (handle_type h) const
	Is handle equal to?
void	attach (handle_type h) noexcept
	Sets a new object handle for the class.
handle_type	detach ()
	Dismisses the object handle from this class.
void	free ()
	Destroys the object.

Protected Member Functions
void	free_internal () noexcept override
	Releases a device context (DC), freeing it for use by other applications.
Protected Member Functions inherited from winstd::handle< HDC, NULL >

Protected Attributes
HWND	m_hwnd
	Window handle.
Protected Attributes inherited from winstd::handle< HDC, NULL >
handle_type	m_h
	Object handle.

Additional Inherited Members
Public Types inherited from winstd::handle< HDC, NULL >
typedef HDC	handle_type
	Datatype of the object handle this template class handles.
Static Public Attributes inherited from winstd::handle< HDC, NULL >
static const HDC	invalid
	Invalid handle value.

Detailed Description

Device context wrapper class.

Constructor & Destructor Documentation

~window_dc()

virtual winstd::window_dc::~window_dc ( )

inlinevirtual

Releases a device context (DC), freeing it for use by other applications.

See also

ReleaseDC function

Member Function Documentation

free_internal()

void winstd::window_dc::free_internal ( )

inlineoverrideprotectedvirtualnoexcept

Releases a device context (DC), freeing it for use by other applications.

See also

ReleaseDC function

Implements winstd::handle< HDC, NULL >.

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The documentation for this class was generated from the following file:

• include/WinStd/GDI.h