获取我的exe&ŧ039；目录。WinBase API

Posted 2021-02-26

Determine directory where the .exe is running from. Usually it's CWD - but not always, such as MsiExec Custom Actions.

Windows. non-dot.net, with or without MFC.

CString sThisDir; // in atlstr.h
 
 
::GetModuleFileName( // In WinBase.h.
   0, // retrieve path of .exe file for the current process.
   sThisDir.GetBufferSetLength(MAX_PATH), 
   MAX_PATH);
 
sThisDir.Truncate( sThisDir.ReverseFind('\') + 1 ); // Chop off the app.exe portion.
 
 
// Alternative to create a myApp.ini file name:
 
CString thisExe; // in atlstr.h
 
::GetModuleFileName( // In WinBase.h.
   0, // retrieve path of .exe file for the current process.
   thisExe.GetBufferSetLength(MAX_PATH), 
   MAX_PATH);
 
thisExe.Truncate( thisExe.ReverseFind('.') ); // Chop off the .exe.
 
CString iniFile = thisExe;
iniFile.Append( ".ini" ); // Replace .exe with .ini. 
 
// I didn't use CString::Replace because there could be multiple embedded ".exe" in the path.
// I found that Vista wanted to store INIs in the Windows directory rather than the CWD.