juce_MessageManager.h File Reference

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Classes
class	juce::MessageManager
	This class is in charge of the application's event-dispatch loop. More...
class	juce::MessageManager::Lock
	A lock you can use to lock the message manager. More...
class	juce::MessageManager::MessageBase
	Internal class used as the base class for all message objects. More...
class	juce::MessageManagerLock
	Used to make sure that the calling thread has exclusive access to the message loop. More...

Namespaces
namespace	juce

Macros
#define	JUCE_ASSERT_MESSAGE_MANAGER_EXISTS    jassert (juce::MessageManager::getInstanceWithoutCreating() != nullptr);
	This macro is used to catch unsafe use of functions which expect to not be called outside the lifetime of the MessageManager.
#define	JUCE_ASSERT_MESSAGE_MANAGER_IS_LOCKED    jassert (juce::MessageManager::existsAndIsLockedByCurrentThread());
	This macro is used to catch unsafe use of functions which expect to only be called on the message thread, or when a MessageManagerLock is in place.
#define	JUCE_ASSERT_MESSAGE_THREAD    jassert (juce::MessageManager::existsAndIsCurrentThread());
	This macro is used to catch unsafe use of functions which expect to only be called on the message thread.

Typedefs
using	juce::MessageCallbackFunction = void *(void *userData)
	See MessageManager::callFunctionOnMessageThread() for use of this function type.

Macro Definition Documentation

JUCE_ASSERT_MESSAGE_MANAGER_EXISTS

#define JUCE_ASSERT_MESSAGE_MANAGER_EXISTS    jassert (juce::MessageManager::getInstanceWithoutCreating() != nullptr);

This macro is used to catch unsafe use of functions which expect to not be called outside the lifetime of the MessageManager.

JUCE_ASSERT_MESSAGE_MANAGER_IS_LOCKED

#define JUCE_ASSERT_MESSAGE_MANAGER_IS_LOCKED    jassert (juce::MessageManager::existsAndIsLockedByCurrentThread());

This macro is used to catch unsafe use of functions which expect to only be called on the message thread, or when a MessageManagerLock is in place.

It will also fail if you try to use the function before the message manager has been created, which could happen if you accidentally invoke it during a static constructor.

JUCE_ASSERT_MESSAGE_THREAD

#define JUCE_ASSERT_MESSAGE_THREAD    jassert (juce::MessageManager::existsAndIsCurrentThread());

This macro is used to catch unsafe use of functions which expect to only be called on the message thread.

It will also fail if you try to use the function before the message manager has been created, which could happen if you accidentally invoke it during a static constructor.