獲取Excel應用程序進程號

Question

我正在用c＃創建一個excel應用程序。 因爲我會保持緊急的excel文件，我想保持它的處理程序打開。 我想保留excel進程ID，這樣我就可以殺死它，以防系統崩潰。

創建時如何獲得Excel Pid？

Answer 1

這裏有一個如何打開使用Excel的互操作一個Excel文件，並妥善處理實例 （來源：谷歌）爲例

Application ExcelObj = new Application(); 
    Workbook WB = ExcelObj.Workbooks.Open(fileName, 
     0, true, 5, "", "", true, XlPlatform.xlWindows, "\t", 
     false, false, 0, true, false, false); 
    Sheets sheets = WB.Worksheets; 
    Worksheet WS = (Worksheet)sheets.get_Item(1); 
    Range excelRange = WS.UsedRange; 

     ... (DO STUFF?) 

     // Get rid of everything - close Excel 
     while (Marshal.ReleaseComObject(WB) > 0) { } 
     WB = null; 
     while (Marshal.ReleaseComObject(sheets) > 0) { } 
     sheets = null; 
     while (Marshal.ReleaseComObject(WS) > 0) { } 
     WS = null; 
     while (Marshal.ReleaseComObject(excelRange) > 0) { } 
     excelRange = null; 
     GC(); 
     ExcelObj.Quit(); 
     while (Marshal.ReleaseComObject(ExcelObj) > 0) { } 
     ExcelObj = null; 
     GC(); 

    public static void GC() 
    { 
     System.GC.Collect(); 
     System.GC.WaitForPendingFinalizers(); 
     System.GC.Collect(); 
     System.GC.WaitForPendingFinalizers(); 
    } 

Answer 2

using Excel = Microsoft.Office.Interop.Excel; 
using System.Runtime.InteropServices; 
using System.Diagnostics; 

class Sample 
{ 
    [DllImport("user32.dll")] 
    static extern int GetWindowThreadProcessId(int hWnd, out int lpdwProcessId); 

    Process GetExcelProcess(Excel.Application excelApp) 
    { 
     int id; 
     GetWindowThreadProcessId(excelApp.Hwnd, out id); 
     return Process.GetProcessById(id); 
    } 
}