More win32 build fixes.

1 files changed, 3 insertions, 3 deletions

diff --git a/src/KM_fileio.cpp b/src/KM_fileio.cpp
index 7754c66..7a6b3f8 100644
--- a/src/KM_fileio.cpp
+++ b/src/KM_fileio.cpp
@@ -967,7 +967,7 @@ Kumu::FileWriter::OpenWrite(const std::string& filename)
 
 /** @param filename File name (UTF-8 encoded) */
 Kumu::Result_t
-Kumu::FileWriter::OpenModify(const char* filename)
+Kumu::FileWriter::OpenModify(const std::string& filename)
 {
   KM_TEST_NULL_STR_L(filename);
   m_Filename = filename;
@@ -975,9 +975,9 @@ Kumu::FileWriter::OpenModify(const char* filename)
   // suppress popup window on error
   UINT prev = ::SetErrorMode(SEM_FAILCRITICALERRORS|SEM_NOOPENFILEERRORBOX);
 
-  int const wn = MultiByteToWideChar (CP_UTF8, 0, filename, -1, 0, 0);
+  int const wn = MultiByteToWideChar (CP_UTF8, 0, filename.c_str(), -1, 0, 0);
   wchar_t* buffer = new wchar_t[wn];
-  if (MultiByteToWideChar (CP_UTF8, 0, filename, -1, buffer, wn) == 0) {
+  if (MultiByteToWideChar (CP_UTF8, 0, filename.c_str(), -1, buffer, wn) == 0) {
     delete[] buffer;
     return Kumu::RESULT_FAIL;
   }