SCardEstablishContext
A version of this page is also available for
4/8/2010
This function establishes the resource manager context (the scope) within which database operations are performed.
Syntax
LONG SCardEstablishContext(
DWORD dwScope,
LPCVOID pvReserved1,
LPCVOID pvReserved2,
LPSCARDCONTEXT phContext
);
Parameters
dwScope
[in] Specifies the scope of the resource manager context. The following table shows the possible values for dwScope.Value Description SCARD_SCOPE_SYSTEM
Database operations are performed within the domain of the system. The calling application must have appropriate access permissions for any database actions.
SCARD_SCOPE_USER
Unsupported. If specified, Windows Embedded CE assumes the SCARD_SCOPE_SYSTEM value.
- pvReserved1
[in] Void pointer reserved for future use; must be NULL. Reserved to enable a suitably privileged management application to act on behalf of another user.
- pvReserved2
[in] Void pointer reserved for future use; must be NULL. Reserved to enable a suitably privileged management application to act on behalf of another terminal.
- phContext
[out] Pointer to a handle to the established resource manager context. This handle can now be supplied to other functions attempting to do work within this context.
Return Value
The following table shows the possible return values.
| Value | Description |
|---|---|
SCARD_S_SUCCESS |
Succeeds |
An error value (see Smart Card Error Values for a list of all error values). |
Fails |
Remarks
The context handle returned by SCardEstablishContext can be used by database query and management functions.
To free an established resource manager context, see SCardReleaseContext.
Requirements
| Header | winscard.h |
| Library | winscard.lib |
| Windows Embedded CE | Windows CE 3.0 and later |
| Windows Mobile | Windows Mobile Version 5.0 and later |