CVI and Excel Help?

Hi all

Is there a way to write to an Excel sheet spread during this same worksheet is open with windows Explorer?

Something like a shared connection.

Kind regards

Shako

This put reminder to update the sample excel2000dem project lists all open 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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