File dialogs

[Anonymous]

Hello, I`m creating simple dialog for my 3DXI exporter, so i want specify some specific folders and I`m trying to show DoMaxBrowseForFolder

INT_PTR CALLBACK ExportOptionsDlgProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) 
{ 
 switch(message) { 
 case WM_COMMAND:
 switch (LOWORD(wParam)) 
 { 
 case IDC_BTN_MESH:
 pathControl = IDC_PATH_MESH;
 initPath = params.m_meshPath;
 
 Interface13* imax = GetCOREInterface13();
 imax->DoMaxBrowseForFolder(hWnd, _M(""), initPath);
 //..

The dialog is showing, but buttons or other controls don`t work, I've tried pass NULL or MaxhWnd as hWnd to DoMaxBrowseForFolder.
I've checked in the debugger that the threads locks in NtPeekMessage, may be i have specify something?
Here i'm creating dialog:

if (!suppressPrompts && !DialogBoxParam(hInstance, MAKEINTRESOURCE(IDD_PANEL), pInterface->GetMAXHWnd(), ExportOptionsDlgProc, (LPARAM)(LPVOID)this))
 return 1;

Is it OK that parent for FolderDialog also dialog?
MaxSDK 13.

[Anonymous]

I've tried a lot of things, but, unfortunately without success.
The exception still occur.
Here a code of FileDialog creation:

MSTR title = _M("Save as File"), _fname = _M(""), _path = _M(""); 
Interface13* imax = GetCOREInterface13(); 
FilterList filterList;
imax->DoMaxSaveAsDialog(imax->GetMAXHWnd(), title, _fname, _path, filterList));

In the samples the code is same, i don't know why my isn't work.
Here is exception:

Unhandled exception at 0x0000000140496249 in 3dsmax.exe: 0xC000041D: An unhandled exception was encountered during a user callback.

Here is a callstack

  3dsmax.exe!0000000140496249()  
   
  3dsmax.exe!000000014049d24c()  
  3dsmax.exe!00000001400fd819()  
> MyExport_x64.dle!ExportOptionsDlgProc(HWND__ * hWnd, unsigned int message, unsigned __int64 wParam, __int64 lParam)  Line 139 + 0x95 bytes C++
  user32.dll!UserCallDlgProcCheckWow()  + 0x11b bytes 
  user32.dll!DefDlgProcWorker()  + 0xba bytes 
  user32.dll!DefDlgProcW()  + 0x36 bytes 
  user32.dll!UserCallWinProcCheckWow()  + 0x11d bytes 
  user32.dll!CallWindowProcAorW()  + 0x78 bytes 
  user32.dll!CallWindowProcW()  + 0x18 bytes 
  uicontrols.dll!000000002e804633()  
  user32.dll!UserCallWinProcCheckWow()  + 0x11d bytes 
  user32.dll!DispatchClientMessage()  + 0x5f bytes 
  user32.dll!__fnDWORD()  + 0x2d bytes 
  ntdll.dll!KiUserCallbackDispatcherContinue()  
  user32.dll!ZwUserMessageCall()  + 0xa bytes 
  user32.dll!SendMessageWorker()  - 0x3118 bytes 
  user32.dll!SendMessageW()  + 0x5d bytes 
  comctl32.dll!Button_ReleaseCapture()  + 0x157 bytes 
  comctl32.dll!Button_WndProc()  + 0xcde bytes 
  user32.dll!UserCallWinProcCheckWow()  + 0x11d bytes 
  user32.dll!CallWindowProcAorW()  + 0x78 bytes 
  user32.dll!CallWindowProcW()  + 0x18 bytes 
  uicontrols.dll!000000002e80432b()  
  user32.dll!UserCallWinProcCheckWow()  + 0x11d bytes 
  user32.dll!DispatchMessageWorker()  + 0x12a bytes 
  user32.dll!IsDialogMessageW()  + 0x102 bytes 
  user32.dll!DialogBox2()  + 0x174 bytes 
  user32.dll!InternalDialogBox()  + 0x111 bytes 
  user32.dll!DialogBoxIndirectParamAorW()  + 0x56 bytes 
  user32.dll!DialogBoxParamW()  + 0x66 bytes 
  MyExport_x64.dle!IsolationAwareDialogBoxParamW(HINSTANCE__ * hInstance, const wchar_t * lpTemplateName, HWND__ * hWndParent, __int64 (HWND__ *, unsigned int, unsigned __int64, __int64)* lpDialogFunc, __int64 dwInitParam)  Line 640 + 0x33 bytes C++
  MyExport_x64.dle!EngineExport::DoExport(const wchar_t * name, ExpInterface * pExpInterface, Interface * pInterface, int suppressPrompts, unsigned long options)  Line 190 + 0x4b bytes C++

Help please. Is there any examples except standart from SDK?