# eglWaitClient

Complete client API execution prior to subsequent native rendering calls

## C Specification

`EGLBoolean eglWaitClient(` | `void)`; |

## Description

All rendering calls for the currently bound context, for the current rendering API, made prior to `eglWaitClient` are guaranteed to be executed before native rendering calls made after `eglWaitClient`. The same result can be achieved using client API-specific commands such as glFinish or vgFinish.

`eglWaitClient` is ignored if there is no current EGL rendering context for the current rendering API.

## Errors

`EGL_FALSE` is returned if `eglWaitClient` fails, `EGL_TRUE` otherwise.

If there is no current context for the current rendering API, the function has no effect but still returns `EGL_TRUE`.

`EGL_BAD_CURRENT_SURFACE` is generated if the surface associated with the current context has a native window or pixmap, and that window or pixmap is no longer valid.

## Notes

`eglWaitClient` is supported only if the EGL version is 1.2 or greater.

`eglWaitClient` is a generalized version of `eglWaitGL`, supporting multiple client APIs.

## See Also

glFinish, glFlush, eglWaitGL, eglWaitNative, vgFinish

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