如何從Windows快捷方式（.lnk文件）以編程方式（C ++）啟動應用程序？

Question

如何從Windows快捷方式（.lnk文件）以編程方式啟動應用程序？

我嘗試使用API​​ ShellExecute，它似乎可以正常工作。 有什么需要注意的嗎？

謝謝。

這是我當前代碼的片段：

#include <windows.h>

#include <map>
#include <string>
#include <iostream>

int main( int, char** )
{
   std::map< int, std::wstring > errors;
   errors[0]                      = L"The operating system is out of memory or resources.";
   errors[ERROR_FILE_NOT_FOUND]   = L"The specified file was not found."; 
   errors[ERROR_PATH_NOT_FOUND]   = L"The specified path was not found."; 
   errors[ERROR_BAD_FORMAT]       = L"The .exe file is invalid (non-Microsoft Win32 .exe or error in .exe image).";
   errors[SE_ERR_ACCESSDENIED]    = L"The operating system denied access to the specified file.";
   errors[SE_ERR_ASSOCINCOMPLETE] = L"The file name association is incomplete or invalid.";
   errors[SE_ERR_DDEBUSY]         = L"The Dynamic Data Exchange (DDE) transaction could not be completed because other DDE transactions were being processed.";
   errors[SE_ERR_DDEFAIL]         = L"The DDE transaction failed.";
   errors[SE_ERR_DDETIMEOUT]      = L"The DDE transaction could not be completed because the request timed out.";
   errors[SE_ERR_DLLNOTFOUND]     = L"The specified DLL was not found.";
   errors[SE_ERR_FNF]             = L"The specified file was not found.";
   errors[SE_ERR_NOASSOC]         = L"There is no application associated with the given file name extension. This error will also be returned if you attempt to print a file that is not printable.";
   errors[SE_ERR_OOM]             = L"There was not enough memory to complete the operation.";
   errors[SE_ERR_PNF]             = L"The specified path was not found.";
   errors[SE_ERR_SHARE]           = L"A sharing violation occurred.";

   int ret = reinterpret_cast< int >( ::ShellExecute(0,L"open",L"\"C:\\Documents and Settings\\All Users\\Start Menu\\Programs\\Accessories\\Calculator.lnk\"",0,0,SW_SHOW) );
   const int minimumRetOK = 33;
   if ( ret < minimumRetOK ) {
      if ( errors.count( ret ) ) {
         std::wcout << L"Error " << ret << L" " << errors[ ret ];
      } else {
         std::wcout << L"Error " << ret << L" undocumented error";
      }
   }

    return 0;
}

Answer 1

ShellExecute或CreateProcess應該能夠打開鏈接文件。 如果他們找不到關聯的文件和/或程序，則可以始終使用這些API，並將辛苦的工作委派給“ cmd start”或“ explorer”。 例如ShellExecute(0, "open", "explorer", linkfile, 0, SW_SHOW);

Answer 2

我不確定您不確定什么，您觀察到的行為是否已記錄在案 。

ShellExecute的“打開”操作將執行外殼程序在“打開”由文件參數引用的文件時所做的任何操作（您可以右鍵單擊快捷方式並顯式選擇“打開”，但這也是.lnk的默認操作，因此與雙擊相同）。

“打開”快捷方式文件將“打開”目標，如果目標是可執行文件，它將運行，如果它是文檔或數據文件，它將在關聯的程序中打開，如果沒有則提示輸入程序相關。

Answer 3

ShellExecute應該工作。

但是...

int main( int, wchar_t* )

...據我所知沒有編譯器支持此簽名。 寫吧：

int main()

另外，對於診斷消息，只需使用FormatMessage Windows API函數，或者，如果代碼專用於Visual C ++，則使用與該編譯器捆綁在一起的相應支持類。

干杯，……