QGL Namespace
The QGL namespace specifies miscellaneous identifiers used in the Qt OpenGL module. More...
| Header: | #include <QGL> |
| qmake: | QT += opengl |
Types
| enum | FormatOption { DoubleBuffer, DepthBuffer, Rgba, AlphaChannel, ..., NoDeprecatedFunctions } |
| flags | FormatOptions |
Detailed Description
The QGL namespace specifies miscellaneous identifiers used in the Qt OpenGL module.
Type Documentation
enum QGL::FormatOption
flags QGL::FormatOptions
This enum specifies the format options that can be used to configure an OpenGL context. These are set using QGLFormat::setOption().
| Constant | Value | Description |
|---|---|---|
QGL::DoubleBuffer | 0x0001 | Specifies the use of double buffering. |
QGL::DepthBuffer | 0x0002 | Enables the use of a depth buffer. |
QGL::Rgba | 0x0004 | Specifies that the context should use RGBA as its pixel format. |
QGL::AlphaChannel | 0x0008 | Enables the use of an alpha channel. |
QGL::AccumBuffer | 0x0010 | Enables the use of an accumulation buffer. |
QGL::StencilBuffer | 0x0020 | Enables the use of a stencil buffer. |
QGL::StereoBuffers | 0x0040 | Enables the use of a stereo buffers for use with visualization hardware. |
QGL::DirectRendering | 0x0080 | Specifies that the context is used for direct rendering to a display. |
QGL::HasOverlay | 0x0100 | Enables the use of an overlay. |
QGL::SampleBuffers | 0x0200 | Enables the use of sample buffers. |
QGL::DeprecatedFunctions | 0x0400 | Enables the use of deprecated functionality for OpenGL 3.x contexts. A context with deprecated functionality enabled is called a full context in the OpenGL specification. |
QGL::SingleBuffer | DoubleBuffer << 16 | Specifies the use of a single buffer, as opposed to double buffers. |
QGL::NoDepthBuffer | DepthBuffer << 16 | Disables the use of a depth buffer. |
QGL::ColorIndex | Rgba << 16 | Specifies that the context should use a color index as its pixel format. |
QGL::NoAlphaChannel | AlphaChannel << 16 | Disables the use of an alpha channel. |
QGL::NoAccumBuffer | AccumBuffer << 16 | Disables the use of an accumulation buffer. |
QGL::NoStencilBuffer | StencilBuffer << 16 | Disables the use of a stencil buffer. |
QGL::NoStereoBuffers | StereoBuffers << 16 | Disables the use of stereo buffers. |
QGL::IndirectRendering | DirectRendering << 16 | Specifies that the context is used for indirect rendering to a buffer. |
QGL::NoOverlay | HasOverlay << 16 | Disables the use of an overlay. |
QGL::NoSampleBuffers | SampleBuffers << 16 | Disables the use of sample buffers. |
QGL::NoDeprecatedFunctions | DeprecatedFunctions << 16 | Disables the use of deprecated functionality for OpenGL 3.x contexts. A context with deprecated functionality disabled is called a forward compatible context in the OpenGL specification. |
The FormatOptions type is a typedef for QFlags<FormatOption>. It stores an OR combination of FormatOption values.
© 2021 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.