DDHAL Callback Return Values (Windows CE 5.0)
Negative values represent errors and cannot be combined. The following table shows the values that the functions in the DirectDraw Display Driver Reference can return. For a list of the error codes that each function can return, see the function description.
| Value | Description |
|---|---|
| DD_OK | The request completed successfully. |
| DDERR_CURRENTLYNOTAVAIL | The display driver is in power management mode. |
| DDERR_EXCEPTION | An exception was encountered while performing the requested operation. |
| DDERR_INVALIDOBJECT | DirectDraw received a pointer that was an invalid DirectDraw object. |
| DDERR_INVALIDPARAMS | One or more of the parameters passed to the method are incorrect. |
| DDERR_SURFACEBUSY | Access to the surface is refused because the surface is locked by another thread. |
| DDERR_UNSUPPORTED | The operation is not supported. |
| DDERR_VERTICALBLANKINPROGRESS | A vertical blank is in progress. |
| DDERR_VIDEONOTACTIVE | The video port is not active. |
| DDERR_WASSTILLDRAWING | The previous blit operation that is transferring information to or from this surface is incomplete. |
| DDHAL_DRIVER_HANDLED | The request has been dealt with, however, no specific action may have been taken. |
| DDHAL_DRIVER_NOCKEYHW | No hardware exists for this request. |
| DDHAL_DRIVER_NOTHANDLED | The request has not been dealt with in any way. |
See Also
DirectDraw Display Driver Reference | DDHAL Callback Functions
Send Feedback on this topic to the authors