PDX_GETTRANSFERSTATUS callback function (dxmini.h)
The DxGetTransferStatus callback function is used by DirectDraw to determine which hardware bus master has completed.
Syntax
PDX_GETTRANSFERSTATUS PdxGettransferstatus;
DWORD PdxGettransferstatus(
PVOID unnamedParam1,
PVOID unnamedParam2,
PDDGETTRANSFEROUTINFO unnamedParam3
)
{...}
Parameters
unnamedParam1
Points to the miniport driver's device extension.
unnamedParam2
Reserved for system use.
unnamedParam3
Points to a DDGETTRANSFERSTATUSOUTINFO structure that contains the transfer status information.
Return value
DxGetTransferStatus returns DX_OK if it succeeds; otherwise, it returns one of the following error values:
Remarks
The driver identifies the bus master by supplying the transfer ID in the DDGETTRANSFERSTATUSOUTINFO structure. The transfer ID for each bus master is originally supplied by DirectDraw in the dwTransferID member of the DDTRANSFERININFO structure. DirectDraw passes a pointer to DDTRANSFERININFO in its call to the driver's DxTransfer function.
Requirements
| Requirement | Value |
|---|---|
| Target Platform | Desktop |
| Header | dxmini.h (include Dxmini.h) |