getSaveFileName and getOpenFileName Crash

[pmohod]

Hello all,
I am developing an application on Qt-4.6.2 on window platform.
I am using windows XP professional version 2002 with SP3.

struct {
      char  Dir[_MAX_PATH];
      char  Filter[128];
   } Param;
 
 strcpy (Param.Dir,    ".");
 strcpy (Param.Filter, "*");
 
QString f = Q3FileDialog::getSaveFileName (Param.Dir, Param.Filter, 0, 0, Title); // crash

struct {
      char  Dir[_MAX_PATH];
      char  Filter[128];
   } Param;

 strcpy (Param.Dir,    ".");
 strcpy (Param.Filter, "*");

QString f = Q3FileDialog::getSaveFileName (Param.Dir, Param.Filter, 0, 0, Title); // crash

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Here the application is crashing on the last line of code.

Here are some of my observations:

1) QString f = Q3FileDialog::getSaveFileName ("", Param.Filter, 0, 0, Title);
-- OK Works fine

2) QString f = Q3FileDialog::getSaveFileName (" ", Param.Filter, 0, 0, Title);
-- Crash

3) QString f = Q3FileDialog::getSaveFileName ("C:\\", Param.Filter, 0, 0, Title);
-- Crash

Interestingly when I tried the same application with same dlls on my colleague's machine, it is working fine with all options(mentioned above 1,2,3) .

The similar situation arise with Q3FileDialog::getOpenFileName() function also.

Please provide me any help regarding this issue.









it works fine.