Requests memory from the system. When the message received by ntxReceiveRtMessage is not a response to a previous request, the system allocates memory for the Windows application.

Allocates a memory buffer from a heap object and returns a pointer to the caller. If insufficient resources are available to meet the request, a NULL pointer is returned.

LPVOID ntxRequestRtBuffer(
    NTXHANDLE hPort
    DWORD dwBufferSize 
);

Parameters

hPort

Specifies the port and heap from which to request a buffer.

dwBufferSize

The number of bytes of the buffer to allocate.

Return Values

A pointer to the allocated buffer.

Success.

A null pointer.

Failure. To determine the status, call ntxGetLastRtError.

Status

E_LOCATION

The RT client on which the port was created is now invalid.

E_NTX_INTERNAL_ERROR

The DLL could not contact the RT kernel to complete the request.

Requirements

See Also

Port system calls