sync
glIsSync returns GL_TRUE if sync is currently the name of a sync object. If sync is not the name of a sync object, or if an error occurs, glIsSync returns GL_FALSE. Note that zero is not the name of a sync object.
glIsSync is available only if the GL version is 3.2 or greater.
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OpenGL Version
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| Function / Feature Name | 2.0 | 2.1 | 3.0 | 3.1 | 3.2 | 3.3 | 4.0 | 4.1 | 4.2 | 4.3 | 4.4 |
4.5
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| glIsSync | - | - | - | - | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
✔
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glFenceSync(), glWaitSync(), glClientWaitSync(), glDeleteSync()
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