Dim Obj1 as Object
Set Obj1 = Getobject("Name of excel file.xls") 'or Getobject( ,
"Excel.Application") for a new application
Obj1.application.visible = true ' This will render the excel
visible
or
read...this comes from help file of Getobject
GetObject Function Example
This example uses the GetObject function to get a reference to a specific
Microsoft Excel worksheet (MyXL). It uses the worksheet's Application
property to make Microsoft Excel visible, to close it, and so on. Using two
API calls, the DetectExcel Sub procedure looks for Microsoft Excel, and if
it is running, enters it in the Running Object Table. The first call to
GetObject causes an error if Microsoft Excel isn't already running. In the
example, the error causes the ExcelWasNotRunning flag to be set to True. The
second call to GetObject specifies a file to open. If Microsoft Excel isn't
already running, the second call starts it and returns a reference to the
worksheet represented by the specified file, mytest.xls. The file must exist
in the specified location; otherwise, the Visual Basic error Automation
error is generated. Next the example code makes both Microsoft Excel and the
window containing the specified worksheet visible. Finally, if there was no
previous version of Microsoft Excel running, the code uses the Application
object's Quit method to close Microsoft Excel. If the application was
already running, no attempt is made to close it. The reference itself is
released by setting it to Nothing.
' Declare necessary API routines:
Declare Function FindWindow Lib "user32" Alias _
"FindWindowA" (ByVal lpClassName as String, _
ByVal lpWindowName As Long) As Long
Declare Function SendMessage Lib "user32" Alias _
"SendMessageA" (ByVal hWnd as Long,ByVal wMsg as Long, _
ByVal wParam as Long, _
ByVal lParam As Long) As Long
Sub GetExcel()
Dim MyXL As Object ' Variable to hold reference
' to Microsoft Excel.
Dim ExcelWasNotRunning As Boolean ' Flag for final release.
' Test to see if there is a copy of Microsoft Excel already running.
On Error Resume Next ' Defer error trapping.
' Getobject function called without the first argument returns a
' reference to an instance of the application. If the application isn't
' running, an error occurs.
Set MyXL = Getobject(, "Excel.Application")
If Err.Number <> 0 Then ExcelWasNotRunning = True
Err.Clear ' Clear Err object in case error occurred.
' Check for Microsoft Excel. If Microsoft Excel is running,
' enter it into the Running Object table.
DetectExcel
' Set the object variable to reference the file you want to see.
Set MyXL = Getobject("c:\vb4\MYTEST.XLS")
' Show Microsoft Excel through its Application property. Then
' show the actual window containing the file using the Windows
' collection of the MyXL object reference.
MyXL.Application.Visible = True
MyXL.Parent.Windows(1).Visible = True
Do manipulations of your file here.
' ...
' If this copy of Microsoft Excel was not running when you
' started, close it using the Application property's Quit method.
' Note that when you try to quit Microsoft Excel, the
' title bar blinks and a message is displayed asking if you
' want to save any loaded files.
If ExcelWasNotRunning = True Then
MyXL.Application.Quit
End IF
Set MyXL = Nothing ' Release reference to the
' application and spreadsheet.
End Sub
Sub DetectExcel()
' Procedure dectects a running Excel and registers it.
Const WM_USER = 1024
Dim hWnd As Long
' If Excel is running this API call returns its handle.
hWnd = FindWindow("XLMAIN", 0)
If hWnd = 0 Then ' 0 means Excel not running.
Exit Sub
Else
' Excel is running so use the SendMessage API
' function to enter it in the Running Object Table.
SendMessage hWnd, WM_USER + 18, 0, 0
End If
End Sub
Stephane
