- Qt 6.8
- Qt Quick
- C++ Classes
- QSGOpenGLTexture
- Qt 6.8.2 Reference Documentation

# QSGOpenGLTexture Struct

struct QNativeInterface::QSGOpenGLTexture

Provides access to and enables adopting OpenGL texture objects. More...

Header: | `#include <QSGTexture>`
CMake: | `find_package(Qt6 REQUIRED COMPONENTS Quick)` `target_link_libraries(mytarget PRIVATE Qt6::Quick)`
qmake: | `QT += quick`
Since: | Qt 6.0

- List of all members, including inherited members
- QSGOpenGLTexture is part of Native Interfaces.

## Public Functions

virtual GLuint | nativeTexture() const = 0

## Static Public Members

`(since 6.0)` QSGTexture * | fromNative(GLuint textureId, QQuickWindow *window, const QSize &size, QQuickWindow::CreateTextureOptions options = {})
`(since 6.1)` QSGTexture * | fromNativeExternalOES(GLuint textureId, QQuickWindow *window, const QSize &size, QQuickWindow::CreateTextureOptions options = {})

## Detailed Description

## Member Function Documentation

### `[static, since 6.0]` QSGTexture *QSGOpenGLTexture::fromNative(GLuint textureId, QQuickWindow *window, const QSize &size, QQuickWindow::CreateTextureOptions options = {})

Creates a new QSGTexture wrapping an existing OpenGL texture object for window.

The native object specified in textureId is wrapped, but not owned, by the resulting QSGTexture. The caller of the function is responsible for deleting the returned QSGTexture, but that will not destroy the underlying native object.

This function is currently suitable for 2D RGBA textures only.

Warning: This function will return null if the scenegraph has not yet been initialized.

Use options to customize the texture attributes. Only the TextureHasAlphaChannel and TextureHasMipmaps are taken into account here.

size specifies the size in pixels.

Note: This function must be called on the scenegraph rendering thread.

This function was introduced in Qt 6.0.

See also QQuickWindow::sceneGraphInitialized(), QSGTexture, Scene Graph - Metal Texture Import, and Scene Graph - Vulkan Texture Import.

### `[static, since 6.1]` QSGTexture *QSGOpenGLTexture::fromNativeExternalOES(GLuint textureId, QQuickWindow *window, const QSize &size, QQuickWindow::CreateTextureOptions options = {})

Creates a new QSGTexture wrapping an existing OpenGL ES texture object for window.

The native object specified in textureId is wrapped, but not owned, by the resulting QSGTexture. The caller of the function is responsible for deleting the returned QSGTexture, but that will not destroy the underlying native object.

This function is suitable only for textures that are meant to be used with the `GL_TEXTURE_EXTERNAL_OES` target: usually textures to which another device (such as a camera) writes data.

Warning: This function will return null if the scenegraph has not yet been initialized.

Use options to customize the texture attributes. Only the TextureHasAlphaChannel and TextureHasMipmaps are taken into account here.

size specifies the size in pixels.

Note: This function must be called on the scenegraph rendering thread.

This function was introduced in Qt 6.1.

See also fromNative().

### `[pure virtual]` GLuint QSGOpenGLTexture::nativeTexture() const

Returns the OpenGL texture ID.