@node __dpmi_get_capabilities, dpmi
@subheading Syntax

@smallexample
#include <dpmi.h>

int __dpmi_get_capabilities(int *flags, char *vendor_info);
@end smallexample

@subheading Description

Please refer to @ref{DPMI Specification} for details on DPMI
function call operation.  Also see @ref{DPMI Overview} for general
information.

DPMI function AX = 0x0401 (DPMI 1.0 only).  Not supported by CWSDPMI and
Windows.

Gets the capabilities of the server.  @var{flags} are as follows:

@example
---- ---X = 1="page accessed/dirty" supported
---- --X- = 1="exceptions restartble" supported
---- -X-- = 1="device mapping" supported
---- X--- = 1="map conventional memory" supported
---X ---- = 1="demand zero-fill" supported
--X- ---- = 1="write-protect client" supported
-X-- ---- = 1="write-protect host" supported
@end example

The vendor info is a 128-byte buffer:

@example
[0] host major number
[1] host minor number
[2..127] vendor name
@end example

@subheading Return Value

-1 on error, else zero.

@subheading Portability

@portability !ansi, !posix