IPrintOemUni::DevMode method (prcomoem.h)
The IPrintOemUni::DevMode method, provided by rendering plug-ins for Unidrv, performs operations on private DEVMODEW members.
Syntax
HRESULT DevMode(
DWORD dwMode,
POEMDMPARAM pOemDMParam
);
Parameters
dwMode
Specifies a caller-supplied constant. See the Remarks section for more information.
pOemDMParam
Caller-supplied pointer to an OEMDMPARAM structure.
Return value
The method must return one of the following values.
| Return code | Description |
|---|---|
|
The operation succeeded. |
|
The operation failed |
Remarks
A rendering plug-in for Unidrv must implement the IPrintOemUni::DevMode method.
If you are providing a user interface plug-in for Unidrv, and if you are adding private members to the driver's DEVMODEW structure, you must implement both the IPrintOemUI::DevMode and the IPrintOemUni::DevMode methods. The code implementing these methods must be identical and can be placed in a library that is statically linked to both the UI plug-in and the rendering plug-in.
The IPrintOemUni::DevMode method must perform the operation indicated by its dwMode value. Each time IPrintOemUni::DevMode is called, dwMode contains one of the following constants, which are listed in the order they are received:
Requirements
| Requirement | Value |
|---|---|
| Target Platform | Desktop |
| Header | prcomoem.h (include Prcomoem.h) |