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
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.