TW_UINT16 FAR PASCAL DSM_Entry
(
    pTW_IDENTITY pOrigin,
    pTW_IDENTITY pDest,
    TW_UINT32    DG,
    TW_UINT16    DAT,
    TW_UINT16    MSG,
    TW_MEMREF    pData
);
View the official Windows hardware development documentation

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Windows hardware development documentation (dsm-entry)

DSM_Entry function

The DSM_Entry function provides the only entry point into the Data Source Manager.

Parameters

pOrigin

Identifies the source module of the message.

This could identify an Application, a Source, or the Source Manager.

pDest

Identifies the destination module for the message.

This could identify an application or a data source. If this is NULL, the message goes to the Source Manager.

DG

The Data Group

Example: DG_IMAGE

DAT

The Data Attribute Type

Example: DAT_IMAGEMEMXFER

MSG

The message

Messages are interpreted by the destination module with respect to the Data Group and the Data Attribute Type.

Example: MSG_GET

pData

A pointer to the data structure or variable identified by the Data Attribute Type.

Example: (TW_MEMREF)&ImageMemXfer where ImageMemXfer is a TW_IMAGEMEMXFER structure.

Returns

ReturnCode

Example: TWRC_SUCCESS

View the official Windows hardware development documentation

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