CVI - Course excel files open "windows in.

Hello

I'm working on a project en CVI (8,0), who must deal with Excel files.

The problem is that my software don't control the file which is open: its name and its location are not known normal program.

My idea is to browse excel files open, to verify the presence of the characteristic for some characters in.

Normal however, I can't seem to find the fonctionns allowing me to browse these files in the Excel API.

My idea would be for example:

Lancer Excel (se connecter, avec le Excel_ActiveApp )
POUR chaque fichier ouvert FAIRE
     Lire contenu case 'A1'
     Si contenu == "toto" ALORS
        // C'est mon fichier
    SINON
        // C'est pas mon fichier
    FIN SI
FIN POUR

I tried searching with

Microsoft Excel 14.0 object library

and

Microsoft Excel 9.0 Object Library

I have not found.

So I'm looking for help,

Thanks in advance,

Cédric.

I find the solution here:

http://www.theusenetarchive.com/Usenet-message-CVI-and-Excel-Help-11429335.htm

This modified callback in excel2000dem sample project lists all opened files in Excel:

//----------------------------------------------------------------------------
// ConnectApp
//----------------------------------------------------------------------------
int CVICALLBACK ConnectApp (int panel, int control, int event,
void *callbackData, int eventData1, int eventData2)
{
long ExcelWorkbooksCount;
HRESULT error = 0;
int i;
char *ExcelWorkbookName;

switch (event)
{
case EVENT_COMMIT:
// Launch App
// Connect to existing application if available
SetWaitCursor (1);
error = Excel_ActiveApp (NULL, 1, LOCALE_NEUTRAL, 0, &ExcelAppHandle);
SetWaitCursor (0);
if (error<0)
goto Error;

// Make App Visible
error = Excel_SetProperty (ExcelAppHandle, NULL, Excel_AppVisible, CAVT_BOOL, appVisible?VTRUE:VFALSE);
if (error<0)
goto Error;

// Get number of open files
error = Excel_GetProperty (ExcelAppHandle, NULL, Excel_AppWorkbooks, CAVT_OBJHANDLE, &ExcelWorkbooksHandle);
if (error < 0) goto Error;
error = Excel_GetProperty (ExcelWorkbooksHandle, NULL, Excel_WorkbooksCount, CAVT_LONG, &ExcelWorkbooksCount);
if (error < 0) goto Error;

// Iterate through files and get file name
for (i = 1; i <= ExcelWorkbooksCount; i++) {
error = Excel_WorkbooksItem (ExcelWorkbooksHandle, NULL, CA_VariantInt(i), &ExcelWorkbookHandle);
if (error<0)
goto Error;
error = Excel_GetProperty (ExcelWorkbookHandle, NULL, Excel_WorkbookName, CAVT_CSTRING, &ExcelWorkbookName);
// Print file name
DebugPrintf ("Workbook %d: %s\n", i, ExcelWorkbookName);
// Free resources
ClearObjHandle (&ExcelWorkbookHandle);
CA_FreeMemory (ExcelWorkbookName);
if (error<0)
goto Error;
}

UpdateUIRDimming(panelHandle);
MakeApplicationActive ();
excelLaunched = 0;
break;
}
return 0;
Error:
if (error < 0)
ReportAppAutomationError (error);

return 0;
}

Tags: NI Software

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