DDHAL Callback Return Values
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8/28/2008
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
Concepts
DirectDraw Display Driver Reference
DDHAL Callback Functions