GetOpenFileName does not work in Cygwin

By ake.rehn... on April 25, 2010 14:21 (imported from Google Code)

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What steps will reproduce the problem?

1. Start insight
2. Choose File->Open

or

1. Compile this with $ gcc testdlg.c -mwindows -o testdlg.exe
   #include <windows.h>
   #include <commdlg.h>
   #include <stdio.h>

main ()
{
OPENFILENAMEW ofn;
WCHAR file[100];
char s[256];
int result;

ZeroMemory(&ofn, sizeof(ofn));
ofn.lStructSize = sizeof(ofn);
ofn.nMaxFile = 100;
ofn.lpstrFile = (WCHAR *) file;
ofn.lpstrFile[0]= '\0';
MessageBox(NULL, "About to GetOpenFileNameW","akre",0);
result = GetOpenFileNameW(&ofn);
MessageBox(NULL, "GetOpenFileNameW return","akre",0);
}

2. In cygwin bash: ./testdlg.exe

What is the expected output? What do you see instead?
Expect to see a File open dialog. Instead the program is terminated with
exit code 0xc0000417 (STATUS_INVALID_CRUNTIME_PARAMETER).

What version of the product are you using? On what operating system?
1.4.4.0 Windows XP SP2

Please provide any additional information below.
Removing tortoisegit makes the problem go away.