'Declaration
 
Public Sub LlPreviewDisplayEx( _
   ByVal projectFile As String, _
   ByVal path As String, _
   ByVal windowHandle As IntPtr, _
   ByVal nOptions As Integer, _
   ByVal pOptions As IntPtr _
) 

public void LlPreviewDisplayEx( 
   string projectFile,
   string path,
   IntPtr windowHandle,
   int nOptions,
   IntPtr pOptions
)

public:
void LlPreviewDisplayEx( 
   String^ projectFile,
   String^ path,
   IntPtr windowHandle,
   int nOptions,
   IntPtr pOptions
) 

Parameters

projectFile

valid file name with full pathname

path

valid path for the temporary files ending with a backslash "\".

windowHandle

Window handle of the calling program

nOptions

Value	Meaning
LL_PRVOPT_PRN_USEDEFAULT	preview uses the system's default printer
LL_PRVOPT_PRN_ASKPRINTE RIFNEEDED	if the printer that is stored in the preview file (that is the printer that has been used for the preview print process) is not found in the current computer's printers, a printer dialog is shown so that the user can select the printer.
LL_PRVOPT_PRN_ASKPRINTERALWAYS	a printer dialog will allow the user to choose his default printer for the preview.

pOptions

reserved, set to null or "".

The real data preview is a window that can be started independent of the designer. If shows the data printed by the preview print process. If lpszPath is empty, the path of the project file is used.

Platforms: Windows 10 (Version 21H2 - 23H2), Windows 11 (21H2 - 22H2), Windows Server 2016 - 2022
.NET: .NET Framework 4.8, .NET 6, .NET 7, .NET 8

Reference

LlCore Class
LlCore Members