# CreateVBLIOReq

Returns an I/O request for use with WaitVBL() and WaitVBLDefer().

### Synopsis

`Item CreateVBLIOReq (void)`

### Description

This call is a convenience call for the vbl timer. This call creates and returns an I/O request that is suitable for use with `WaitVBL()` and `WaitVBLDefer()`.

### Return Value

`CreateVBLIOReq()` returns the item number of the I/O request or an error code (a negative value) if an error occurs.

### Implementation

Macro implemented in graphics.h V24.

### Associated Files

graphics.h

### See Also

``DeleteVBLIOReq`()`