NVIDIA FX5500 User Guide - Page 52

NvGvoDesktopOpen(), NVRESULT NVAPIENTRY NvGvoDesktopCloseNVGVOHANDLE hGvoHandle

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CHAPTER 5 API Control NvGvoDesktopOpen() // Function: NvGvoDesktopOpen // Description: Open graphics adapter for Graphics to Video operations // using the Desktop transparent mode interface. Read // operations are permitted in this mode by multiple clients, // but write operations are application exclusive. // Parameters: nAdapterNumber - Graphics adapter number // nReserved - Reserved (must be set to zero) // dwClass - Class interface (NVGVOCLASS_* value) // dwAccessRights - Access rights (NVGVO_O_* mask) // phGvoHandle - Pointer to receive handle // Returns: NV_OK - Success // NV_ACCESSDENIED - Access denied for requested access NVRESULT NVAPIENTRY NvGvoDesktopOpen(UINT nAdapterNumber IN, UINT nReserved IN, DWORD dwClass IN, DWORD dwAccessRights IN, NVGVOHANDLE* phGvoHandle OUT); NvGvoDesktopClose() // Function: NvGvoDesktopClose // Description: Closes graphics adapter for Graphics to Video operations // using the Desktop transparent mode interface. // Parameters: hGvoHandle - Handle to graphics adapter // bGvoRelease - TRUE to release device when handle closes // FALSE to remain in desktop mode when handle // closes (other clients can open using // NvGvoDesktopOpen and release using // NvGvoDesktopClose) // Returns: NV_OK - Success NVRESULT NVAPIENTRY NvGvoDesktopClose(NVGVOHANDLE hGvoHandle IN, BOOL bRelease IN); NVIDIA Corporation 48 Quadro FX 4500/5500 SDI User's Guide- Version 2.0

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NVIDIA Corporation
48
Quadro FX 4500/5500 SDI User’s Guide
– Version 2.0
C
HAPTER
5
API Control
NvGvoDesktopOpen()
//---------------------------------------------------------------------
// Function:
NvGvoDesktopOpen
// Description: Open graphics adapter for Graphics to Video operations
//
using the Desktop transparent mode interface.
Read
//
operations are permitted in this mode by multiple clients,
//
but write operations are application exclusive.
// Parameters:
nAdapterNumber
- Graphics adapter number
//
nReserved
- Reserved (must be set to zero)
//
dwClass
- Class interface (NVGVOCLASS_* value)
//
dwAccessRights
- Access rights (NVGVO_O_* mask)
//
phGvoHandle
- Pointer to receive handle
// Returns:
NV_OK
- Success
//
NV_ACCESSDENIED - Access denied for requested access
//---------------------------------------------------------------------
NVRESULT NVAPIENTRY NvGvoDesktopOpen(UINT
nAdapterNumber IN,
UINT
nReserved
IN,
DWORD
dwClass
IN,
DWORD
dwAccessRights IN,
NVGVOHANDLE*
phGvoHandle
OUT);
NvGvoDesktopClose()
//---------------------------------------------------------------------
// Function:
NvGvoDesktopClose
// Description: Closes graphics adapter for Graphics to Video operations
//
using the Desktop transparent mode interface.
// Parameters:
hGvoHandle
- Handle to graphics adapter
//
bGvoRelease - TRUE to release device when handle closes
//
FALSE to remain in desktop mode when handle
//
closes (other clients can open using
//
NvGvoDesktopOpen and release using
//
NvGvoDesktopClose)
// Returns:
NV_OK
- Success
//---------------------------------------------------------------------
NVRESULT NVAPIENTRY NvGvoDesktopClose(NVGVOHANDLE hGvoHandle IN,
BOOL
bRelease
IN);