QSurface 類

QSurface 類是 Qt 中可渲染錶麵的抽象。更多...

頭：	`#include <QSurface>`
CMake:	`find_package(Qt6 REQUIRED COMPONENTS Gui)` `target_link_libraries(mytarget PRIVATE Qt6::Gui)`
qmake:	`QT += gui`
繼承者：	QOffscreenSurface and QWindow

所有成員列錶，包括繼承成員

公共類型

enum	SurfaceClass { Window, Offscreen }
enum	SurfaceType { RasterSurface, OpenGLSurface, RasterGLSurface, OpenVGSurface, VulkanSurface, …, Direct3DSurface }

公共函數

virtual	~QSurface ()
virtual QSurfaceFormat	format () const = 0
virtual QSize	size () const = 0
bool	supportsOpenGL () const
QSurface::SurfaceClass	surfaceClass () const
virtual QPlatformSurface *	surfaceHandle () const = 0
virtual QSurface::SurfaceType	surfaceType () const = 0

保護函數

QSurface (QSurface::SurfaceClass type )

詳細描述

錶麵尺寸可訪問采用 size () 函數。錶麵的渲染特定屬性可訪問透過 format () 函數。

成員類型文檔編製

enum QSurface:: SurfaceClass

SurfaceClass 枚舉描述錶麵的實際子類。

常量	值	描述
`QSurface::Window`	`0`	錶麵是實例化的 QWindow .
`QSurface::Offscreen`	`1`	錶麵是實例化的 QOffscreenSurface .

enum QSurface:: SurfaceType

SurfaceType 枚舉描述錶麵是什麼類型。

常量	值	描述
`QSurface::RasterSurface`	`0`	The surface is composed of pixels and can be rendered to using a software rasterizer like Qt's raster paint engine.
`QSurface::OpenGLSurface`	`1`	錶麵是 OpenGL 兼容錶麵且可以用於結閤 QOpenGLContext .
`QSurface::RasterGLSurface`	`2`	The surface can be rendered to using a software rasterizer, and also supports OpenGL. This surface type is intended for internal Qt use, and requires the use of private API.
`QSurface::OpenVGSurface`	`3`	The surface is an OpenVG compatible surface and can be used in conjunction with OpenVG contexts.
`QSurface::VulkanSurface`	`4`	The surface is a Vulkan compatible surface and can be used in conjunction with the Vulkan graphics API.
`QSurface::MetalSurface`	`5`	The surface is a Metal compatible surface and can be used in conjunction with Apple's Metal graphics API. This surface type is only supported on macOS and iOS.
`QSurface::Direct3DSurface`	`6`	The surface is a Direct 3D 11 and 12 compatible surface and can be used in conjunction with the DXGI and Direct3D APIs. This surface type is only supported on Windows.

成員函數文檔編製

`[explicit protected]` QSurface:: QSurface ( QSurface::SurfaceClass type )

創建錶麵，采用給定 type .

`[virtual noexcept]` QSurface:: ~QSurface ()

銷毀此錶麵。

`[pure virtual]` QSurfaceFormat QSurface:: format () const

返迴錶麵的格式。

`[pure virtual]` QSize QSurface:: size () const

返迴錶麵大小 (以像素為單位)。

bool QSurface:: supportsOpenGL () const

返迴 true 若錶麵兼容 OpenGL 且可以用於結閤 QOpenGLContext ；否則返迴 false。

QSurface::SurfaceClass QSurface:: surfaceClass () const

返迴此錶麵的錶麵類。

`[pure virtual]` QPlatformSurface *QSurface:: surfaceHandle () const

返迴特定平颱的錶麵實現句柄。

`[pure virtual]` QSurface::SurfaceType QSurface:: surfaceType () const

返迴錶麵的類型。