如何从Windows快捷方式（.lnk文件）以编程方式启动（C++）应用程序？

Question

如何以编程方式从Windows快捷方式（.lnk文件）启动应用程序？

我试图使用API​​ ShellExecute，它似乎工作。任何警告？

谢谢。

这是我当前的代码片段：

#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

我不确定你不确定什么，你观察到的行为是documented。

ShellExecute“open”操作将在您打开文件参数引用的文件时执行shell执行的任何操作（可以右键单击快捷方式并明确选择“打开”，但这也是默认值操作为.lnk，所以与双击相同）。

“打开”一个快捷方式文件会“打开”目标，如果目标是可执行文件，它将运行，如果它是文档或数据文件，它将在相关程序中打开，或者提示一个程序如果没有关联。

Answer 2

ShellExecute或CreateProcess应该可以打开链接文件。如果他们找不到关联的文件和/或程序，则可以始终使用这些API并将艰苦工作委托给“cmd start”或“explorer”。例如。 ShellExecute(0, "open", "explorer", linkfile, 0, SW_SHOW);

Answer 3

ShellExecute应该工作。

但是，...

int main(int, wchar_t*) 

...没有编译器，我知道支持的这个签名。只要写：

int main() 

此外，对于dignostic的消息，只需要使用FormatMessage Windows API函数，或者，如果代码是专为VISUAL C++，使用与该编译器捆绑相应的支持类。

Cheers & hth。，