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.
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