ArcGIS Engine Developer Guide

BUILDING A COMMAND-LINE C++ APPLICATION
#include
#include
// Extract the shapefile name from the full path of the file.
HRESULT GetFileFromFullPath(const char* inFullPath, BSTR* outFileName);
// Remove the filename from the full path and return the directory.
HRESULT GetParentDirFromFullPath(const char* inFullPath,
BSTR* outFilePath);
#endif // __PATHUTILITIES_ESRISCENARIO_H__
4. Implement the path utility functions in the new file PathUtilities.cpp.
#include "PathUtilities.h"
// Function to remove the filename from the full path and return the
// path to the directory. Caller is responsible for freeing the memory
// in outFilePath (or pass in a CComBSTR, which has been cast to a BSTR
// to let the CComBSTR handle memory management).
HRESULT GetParentDirFromFullPath(const char* inFullPath,
BSTR* outFilePath)
{
if (!inFullPath || !outFilePath)
return E_POINTER;
// Initialize output.
*outFilePath = 0;
const char *pathEnd = strrchr(inFullPath, '/');
if (pathEnd == 0)
pathEnd = strrchr(inFullPath, '\\');
// UNIX
// Windows
if (pathEnd == 0)
return E_FAIL;
int size = strlen(inFullPath) - strlen(pathEnd);
char *tmp = new char[size+1];
strncpy(tmp, inFullPath, size);
*(tmp+size) = '\0';
CComBSTR bsTmp (tmp);
delete[] tmp;
if (!bsTmp)
return E_OUTOFMEMORY;
*outFilePath = bsTmp.Detach();
}
return S_OK;
// Function to extract the file (or directory) name from the full path
// of the file. Caller is responsible for freeing the memory in
432 • ArcGIS Engine Developer Guide