Magnum::Platform::WindowlessWglContext::Configuration class
#include <Magnum/Platform/WindowlessWglApplication.h>

Configuration.

Base classes

class Magnum::GL::Context::Configuration new in Git master
Configuration.

Public types

enum class Flag: UnsignedLong { ForwardCompatible = WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB, Debug = WGL_CONTEXT_DEBUG_BIT_ARB, NoError = 1ull << 32 new in Git master, QuietLog = UnsignedLong(GL::Context::Configuration::Flag::QuietLog) new in Git master, VerboseLog = UnsignedLong(GL::Context::Configuration::Flag::VerboseLog) new in Git master, GpuValidation = UnsignedLong(GL::Context::Configuration::Flag::GpuValidation) new in Git master, GpuValidationNoError = UnsignedLong(GL::Context::Configuration::Flag::GpuValidationNoError) new in Git master }
Context flag.
using Flags = Containers::EnumSet<Flag>
Context flags.

Public functions

auto flags() const -> Flags
Context flags.
auto setFlags(Flags flags) -> Configuration&
Set context flags.
auto addFlags(Flags flags) -> Configuration&
Add context flags.
auto clearFlags(Flags flags) -> Configuration&
Clear context flags.
auto setSharedContext(HGLRC context) -> Configuration& new in 2020.06
Create a shared context.
auto sharedContext() const -> HGLRC new in 2020.06
Shared context.

Enum documentation

enum class Magnum::Platform::WindowlessWglContext::Configuration::Flag: UnsignedLong

Context flag.

Includes also everything from GL::Context::Configuration::Flag except for Flag::Windowless, which is enabled implicitly by default.

Enumerators
ForwardCompatible

Forward compatible context
Debug

Debug context. Enabled automatically if supported by the driver and the Flag::GpuValidation flag is set or if the --magnum-gpu-validation command-line option is set to on.
NoError new in Git master

Context without error reporting. Might result in better performance, but situations that would have generated errors instead cause undefined behavior. Enabled automatically if supported by the driver and the Flag::GpuValidationNoError flag is set or if the --magnum-gpu-validation command-line option is set to no-error.
QuietLog new in Git master

Print only warnings and errors instead of the usual startup log listing used extensions and workarounds. Ignored if Flag::VerboseLog is set.

Corresponds to the --magnum-log quiet command-line option.
VerboseLog new in Git master

Print additional information on startup in addition to the usual startup log that lists used extensions and workarounds. Has a precedence over Flag::QuietLog.

Corresponds to the --magnum-log verbose command-line option.
GpuValidation new in Git master

Enable GPU validation, if available. Has a precedence over Flag::GpuValidationNoError.

Corresponds to the --magnum-gpu-validation on command-line option.
GpuValidationNoError new in Git master

Enable a context without error reporting, if available. Ignored if Flag::GpuValidation is set.

Corresponds to the --magnum-gpu-validation no-error command-line option.

Typedef documentation

typedef Containers::EnumSet<Flag> Magnum::Platform::WindowlessWglContext::Configuration::Flags

Context flags.

Function documentation

Configuration& Magnum::Platform::WindowlessWglContext::Configuration::setFlags(Flags flags)

Set context flags.

Returns Reference to self (for method chaining)

Default is Flag::ForwardCompatible on desktop GL and no flags on OpenGL ES. To avoid clearing default flags by accident, prefer to use addFlags() and clearFlags() instead.

Configuration& Magnum::Platform::WindowlessWglContext::Configuration::addFlags(Flags flags)

Add context flags.

Returns Reference to self (for method chaining)

Unlike setFlags(), ORs the flags with existing instead of replacing them. Useful for preserving the defaults.

Configuration& Magnum::Platform::WindowlessWglContext::Configuration::clearFlags(Flags flags)

Clear context flags.

Returns Reference to self (for method chaining)

Unlike setFlags(), ANDs the inverse of flags with existing instead of replacing them. Useful for removing default flags.

Configuration& Magnum::Platform::WindowlessWglContext::Configuration::setSharedContext(HGLRC context) new in 2020.06

Create a shared context.

Returns Reference to self (for method chaining)

When set, the created context will share a subset of OpenGL objects with context, instead of being independent. Many caveats and limitations apply to shared OpenGL contexts, please consult the OpenGL specification for details. Default is nullptr, i.e. no sharing.