static int MCA_do_file_dialog(MCExecPoint& ep, const char *p_title, const char *p_prompt, const char *p_filter, const char *p_initial, unsigned int p_options)
{
int t_result = 0;
char *t_initial_file;
t_initial_file = NULL;
char *t_initial_folder;
t_initial_folder = NULL;
ep . clear();
if (*p_initial != '\0')
{
char *t_initial_clone;
t_initial_clone = strdup(p_initial);
MCU_w32path2std(t_initial_clone);
MCU_fix_path(t_initial_clone);
if (MCS_exists(t_initial_clone, False))
t_initial_folder = t_initial_clone;
else if ((p_options & MCA_OPTION_SAVE_DIALOG) != 0)
{
t_initial_file = strrchr(t_initial_clone, '/');
if (t_initial_file == NULL)
{
if (strlen(t_initial_clone) != 0)
t_initial_file = t_initial_clone;
}
else
{
*t_initial_file = '\0';
t_initial_file++;
if (t_initial_file[0] == '\0')
t_initial_file = NULL;
if (MCS_exists(t_initial_clone, False))
t_initial_folder = t_initial_clone;
}
}
else
{
char *t_leaf;
t_leaf = strrchr(t_initial_clone, '/');
if (t_leaf != NULL)
{
*t_leaf = '\0';
if (MCS_exists(t_initial_clone, False))
t_initial_folder = t_initial_clone;
}
}
t_initial_file = strdup(t_initial_file);
t_initial_folder = MCS_resolvepath(t_initial_folder);
delete t_initial_clone;
}
if (!MCModeMakeLocalWindows())
{
char ** t_filters = NULL;
uint32_t t_filter_count = 0;
if (p_filter != NULL)
{
const char *t_strptr = p_filter;
while (t_strptr[0] != '\0')
{
t_filter_count++;
t_filters = (char**)realloc(t_filters, t_filter_count * sizeof(char*));
t_filters[t_filter_count - 1] = (char *)t_strptr;
t_strptr += strlen(t_strptr) + 1;
}
}
MCRemoteFileDialog(ep, p_title, p_prompt, t_filters, t_filter_count, t_initial_folder, t_initial_file, (p_options & MCA_OPTION_SAVE_DIALOG) != 0, (p_options & MCA_OPTION_PLURAL) != 0);
free(t_filters);
return 0;
}
Window t_window;
t_window = MCModeGetParentWindow();
bool t_succeeded;
int t_filter_index;
if (MCmajorosversion >= 0x0600)
{
static SHCreateItemFromParsingNamePtr s_shcreateitemfromparsingname = NULL;
if (s_shcreateitemfromparsingname == NULL)
{
static HMODULE s_shell32_module = NULL;
s_shell32_module = LoadLibraryA("shell32.dll");
s_shcreateitemfromparsingname = (SHCreateItemFromParsingNamePtr)GetProcAddress(s_shell32_module, "SHCreateItemFromParsingName");
}
IFileSaveDialog *t_file_save_dialog;
IFileOpenDialog *t_file_open_dialog;
IFileDialog *t_file_dialog;
t_file_dialog = NULL;
HRESULT t_hresult;
if ((p_options & MCA_OPTION_SAVE_DIALOG) == 0)
{
t_hresult = CoCreateInstance(CLSID_FileOpenDialog, NULL, CLSCTX_INPROC_SERVER, __uuidof(IFileOpenDialog), (LPVOID *)&t_file_open_dialog);
t_succeeded = SUCCEEDED(t_hresult);
t_file_dialog = t_file_open_dialog;
}
else
{
t_hresult = CoCreateInstance(CLSID_FileSaveDialog, NULL, CLSCTX_INPROC_SERVER, __uuidof(IFileSaveDialog), (LPVOID *)&t_file_save_dialog);
t_succeeded = SUCCEEDED(t_hresult);
t_file_dialog = t_file_save_dialog;
}
if (t_succeeded)
{
DWORD t_options;
t_options = FOS_FORCEFILESYSTEM | FOS_NOCHANGEDIR | FOS_PATHMUSTEXIST;
if (p_options & MCA_OPTION_PLURAL)
t_options |= FOS_ALLOWMULTISELECT;
if (p_options & MCA_OPTION_SAVE_DIALOG)
t_options |= FOS_OVERWRITEPROMPT;
if (p_options & MCA_OPTION_FOLDER_DIALOG)
t_options |= FOS_PICKFOLDERS;
else
t_options |= FOS_FILEMUSTEXIST;
t_hresult = t_file_dialog -> SetOptions(t_options);
t_succeeded = SUCCEEDED(t_hresult);
}
if (t_succeeded && t_initial_folder != NULL)
{
IShellItem *t_initial_folder_shellitem;
t_initial_folder_shellitem = NULL;
t_hresult = s_shcreateitemfromparsingname(WideCString(t_initial_folder), NULL, __uuidof(IShellItem), (LPVOID *)&t_initial_folder_shellitem);
if (SUCCEEDED(t_hresult))
t_file_dialog -> SetFolder(t_initial_folder_shellitem);
if (t_initial_folder_shellitem != NULL)
t_initial_folder_shellitem -> Release();
t_succeeded = SUCCEEDED(t_hresult);
}
if (t_succeeded && t_initial_file != NULL)
{
t_hresult = t_file_dialog -> SetFileName(WideCString(t_initial_file));
t_succeeded = SUCCEEDED(t_hresult);
}
if (t_succeeded && p_filter != NULL && (p_options & MCA_OPTION_FOLDER_DIALOG) == 0)
{
uint4 t_filter_length, t_filter_count;
measure_filter(p_filter, t_filter_length, t_filter_count);
WideCString t_filters(p_filter, t_filter_length);
COMDLG_FILTERSPEC *t_filter_spec;
filter_to_spec(t_filters, t_filter_count, t_filter_spec);
t_hresult = t_file_dialog -> SetFileTypes(t_filter_count, t_filter_spec);
t_succeeded = SUCCEEDED(t_hresult);
delete t_filter_spec;
}
if (t_succeeded && p_filter != NULL && (p_options & MCA_OPTION_FOLDER_DIALOG) == 0)
{
t_hresult = t_file_dialog -> SetFileTypeIndex(1);
t_succeeded = SUCCEEDED(t_hresult);
}
if (t_succeeded)
t_hresult = t_file_dialog -> SetTitle(WideCString(p_prompt));
if (t_succeeded)
{
t_hresult = t_file_dialog -> Show(t_window != NULL ? (HWND)t_window -> handle . window : NULL);
t_succeeded = SUCCEEDED(t_hresult);
}
if ((p_options & MCA_OPTION_SAVE_DIALOG) == 0)
{
IShellItemArray *t_file_items;
t_file_items = NULL;
if (t_succeeded)
{
t_hresult = t_file_open_dialog -> GetResults(&t_file_items);
t_succeeded = SUCCEEDED(t_hresult);
}
DWORD t_file_item_count;
if (t_succeeded)
{
t_hresult = t_file_items -> GetCount(&t_file_item_count);
t_succeeded = SUCCEEDED(t_hresult);
}
if (t_succeeded)
{
ep . clear();
for(uint4 t_index = 0; t_index < t_file_item_count && t_succeeded; ++t_index)
{
IShellItem *t_file_item;
t_file_item = NULL;
if (t_succeeded)
{
t_hresult = t_file_items -> GetItemAt(t_index, &t_file_item);
t_succeeded = SUCCEEDED(t_hresult);
}
if (t_succeeded)
{
t_hresult = append_shellitem_path_and_release(ep, t_file_item, t_index == 0);
t_succeeded = SUCCEEDED(t_hresult);
}
}
}
if (t_file_items != NULL)
t_file_items -> Release();
}
else
{
IShellItem *t_file_item;
t_file_item = NULL;
if (t_succeeded)
{
t_hresult = t_file_dialog -> GetResult(&t_file_item);
t_succeeded = SUCCEEDED(t_hresult);
}
if (t_succeeded)
{
ep . clear();
t_hresult = append_shellitem_path_and_release(ep, t_file_item, true);
t_succeeded = SUCCEEDED(t_hresult);
}
}
t_filter_index = 0;
if (t_succeeded && (p_options & MCA_OPTION_FOLDER_DIALOG) == 0)
{
UINT t_index;
t_hresult = t_file_dialog -> GetFileTypeIndex(&t_index);
t_succeeded = SUCCEEDED(t_hresult);
if (t_succeeded)
t_filter_index = (int)t_index;
}
if (t_file_dialog != NULL)
t_file_dialog -> Release();
if (!t_succeeded)
t_result = t_hresult;
else
t_result = 0;
}
else
{
OPENFILENAMEA t_open_dialog;
memset(&t_open_dialog, 0, sizeof(OPENFILENAMEA));
t_open_dialog . lStructSize = sizeof(OPENFILENAMEA);
char *t_initial_file_buffer = new char[MAX_PATH];
if (t_initial_file != NULL)
strcpy(t_initial_file_buffer, t_initial_file);
else
*t_initial_file_buffer = '\0';
t_open_dialog . lpstrFilter = p_filter;
t_open_dialog . nFilterIndex = 1;
t_open_dialog . lpstrFile = t_initial_file_buffer;
t_open_dialog . nMaxFile = MAX_PATH;
t_open_dialog . lpstrInitialDir = t_initial_folder;
t_open_dialog . lpstrTitle = p_prompt;
t_open_dialog . Flags = OFN_FILEMUSTEXIST | OFN_HIDEREADONLY | OFN_NOCHANGEDIR |
OFN_LONGNAMES | OFN_PATHMUSTEXIST | OFN_EXPLORER |
OFN_ENABLEHOOK | OFN_ENABLESIZING;
if (p_options & MCA_OPTION_PLURAL)
t_open_dialog . Flags |= OFN_ALLOWMULTISELECT;
if (p_options & MCA_OPTION_SAVE_DIALOG)
t_open_dialog . Flags |= OFN_OVERWRITEPROMPT;
t_open_dialog . lpstrFilter = p_filter;
t_open_dialog . lpfnHook = open_dialog_hook;
t_open_dialog . hwndOwner = t_window != NULL ? (HWND)t_window -> handle . window : NULL;
if (p_options & MCA_OPTION_SAVE_DIALOG)
t_succeeded = GetSaveFileNameA((LPOPENFILENAMEA)&t_open_dialog) == TRUE;
else
{
*t_open_dialog . lpstrFile = '\0';
t_succeeded = GetOpenFileNameA((LPOPENFILENAMEA)&t_open_dialog) == TRUE;
}
if (!t_succeeded)
t_result = CommDlgExtendedError();
// MW-2005-07-26: Try again without the specified filename if it was invalid
if (t_result == FNERR_INVALIDFILENAME)
{
*t_open_dialog . lpstrFile = '\0';
if (p_options & MCA_OPTION_SAVE_DIALOG)
t_succeeded = GetSaveFileNameA((LPOPENFILENAMEA)&t_open_dialog) == TRUE;
else
t_succeeded = GetOpenFileNameA((LPOPENFILENAMEA)&t_open_dialog) == TRUE;
if (!t_succeeded)
t_result = CommDlgExtendedError();
}
if (t_result == FNERR_BUFFERTOOSMALL)
t_succeeded = true;
if (t_succeeded)
{
build_paths(ep);
t_filter_index = t_open_dialog . nFilterIndex;
}
delete t_initial_file_buffer;
}
if (t_succeeded)
{
if (p_options & MCA_OPTION_RETURN_FILTER)
{
const char *t_type = p_filter;
const char *t_types = p_filter;
for(int t_index = t_filter_index * 2 - 1; t_index > 1; t_types += 1)
if (*t_types == '\0')
t_type = t_types + 1, t_index -= 1;
MCresult -> copysvalue(t_type);
}
t_result = 0;
}
waitonbutton();
if (t_initial_folder != NULL)
delete t_initial_folder;
if (t_initial_file != NULL)
delete t_initial_file;
return t_result;
}
static int MCA_do_file_dialog(MCStringRef p_title, MCStringRef p_prompt, MCStringRef p_filter, MCStringRef p_initial, unsigned int p_options, MCStringRef &r_value, MCStringRef &r_result)
{
int t_result = 0;
MCAutoStringRef t_initial_file;
MCAutoStringRef t_initial_folder;
MCAutoStringRef t_initial_native_folder;
if (p_initial != nil && !MCStringIsEmpty(p_initial))
{
MCAutoStringRef t_fixed_path;
/* UNCHECKED */ MCU_fix_path(p_initial, &t_fixed_path);
if (MCS_exists(*t_fixed_path, False))
t_initial_folder = *t_fixed_path;
else if ((p_options & MCA_OPTION_SAVE_DIALOG) != 0)
{
uindex_t t_last_slash;
if (!MCStringLastIndexOfChar(*t_fixed_path, '/', UINDEX_MAX, kMCStringOptionCompareExact, t_last_slash))
{
if (MCStringGetLength(*t_fixed_path) != 0)
t_initial_file = *t_fixed_path;
}
else
{
if (t_last_slash < MCStringGetLength(*t_fixed_path) - 1)
/* UNCHECKED */ MCStringCopySubstring(*t_fixed_path, MCRangeMake(t_last_slash + 1, MCStringGetLength(*t_fixed_path) - (t_last_slash + 1)), &t_initial_file);
MCAutoStringRef t_folder_split;
/* UNCHECKED */ MCStringCopySubstring(*t_fixed_path, MCRangeMake(0, t_last_slash - 1), &t_folder_split);
if (MCS_exists(*t_folder_split, False))
t_initial_folder = *t_folder_split;
}
}
else
{
uindex_t t_last_slash;
if (MCStringLastIndexOfChar(*t_fixed_path, '/', UINDEX_MAX, kMCStringOptionCompareExact, t_last_slash))
{
MCAutoStringRef t_folder_split;
/* UNCHECKED */ MCStringCopySubstring(*t_fixed_path, MCRangeMake(0, t_last_slash - 1), &t_folder_split);
if (MCS_exists(*t_folder_split, False))
t_initial_folder = *t_folder_split;
}
}
MCAutoStringRef t_resolved_folder;
/* UNCHECKED */ MCS_resolvepath(*t_initial_folder != nil ? *t_initial_folder : kMCEmptyString, &t_resolved_folder);
/* UNCHECKED */ MCS_pathtonative(*t_resolved_folder, &t_initial_native_folder);
}
if (!MCModeMakeLocalWindows())
{
MCAutoStringRefArray t_filters;
if (p_filter != NULL)
{
/* UNCHECKED */ MCStringsSplit(p_filter, '\0', t_filters.PtrRef(), t_filters.CountRef());
}
MCRemoteFileDialog(p_title, p_prompt, *t_filters, t_filters.Count(), *t_initial_native_folder, *t_initial_file, (p_options & MCA_OPTION_SAVE_DIALOG) != 0, (p_options & MCA_OPTION_PLURAL) != 0, r_value);
return 0;
}
Window t_window;
t_window = MCModeGetParentWindow();
MCAutoStringRef t_value;
bool t_succeeded;
int t_filter_index;
if (MCmajorosversion >= 0x0600)
{
static SHCreateItemFromParsingNamePtr s_shcreateitemfromparsingname = NULL;
if (s_shcreateitemfromparsingname == NULL)
{
static HMODULE s_shell32_module = NULL;
s_shell32_module = LoadLibraryW(L"shell32.dll");
s_shcreateitemfromparsingname = (SHCreateItemFromParsingNamePtr)GetProcAddress(s_shell32_module, "SHCreateItemFromParsingName");
}
IFileSaveDialog *t_file_save_dialog;
IFileOpenDialog *t_file_open_dialog;
IFileDialog *t_file_dialog;
t_file_dialog = NULL;
HRESULT t_hresult;
if ((p_options & MCA_OPTION_SAVE_DIALOG) == 0)
{
t_hresult = CoCreateInstance(CLSID_FileOpenDialog, NULL, CLSCTX_INPROC_SERVER, __uuidof(IFileOpenDialog), (LPVOID *)&t_file_open_dialog);
t_succeeded = SUCCEEDED(t_hresult);
t_file_dialog = t_file_open_dialog;
}
else
{
t_hresult = CoCreateInstance(CLSID_FileSaveDialog, NULL, CLSCTX_INPROC_SERVER, __uuidof(IFileSaveDialog), (LPVOID *)&t_file_save_dialog);
t_succeeded = SUCCEEDED(t_hresult);
t_file_dialog = t_file_save_dialog;
}
if (t_succeeded)
{
DWORD t_options;
t_options = FOS_FORCEFILESYSTEM | FOS_NOCHANGEDIR | FOS_PATHMUSTEXIST;
if (p_options & MCA_OPTION_PLURAL)
t_options |= FOS_ALLOWMULTISELECT;
if (p_options & MCA_OPTION_SAVE_DIALOG)
t_options |= FOS_OVERWRITEPROMPT;
if (p_options & MCA_OPTION_FOLDER_DIALOG)
t_options |= FOS_PICKFOLDERS;
else
t_options |= FOS_FILEMUSTEXIST;
t_hresult = t_file_dialog -> SetOptions(t_options);
t_succeeded = SUCCEEDED(t_hresult);
}
if (t_succeeded && *t_initial_native_folder != NULL)
{
IShellItem *t_initial_folder_shellitem;
t_initial_folder_shellitem = NULL;
MCAutoStringRefAsWString t_initial_folder_wstr;
/* UNCHECKED */ t_initial_folder_wstr.Lock(*t_initial_native_folder);
t_hresult = s_shcreateitemfromparsingname(*t_initial_folder_wstr, NULL, __uuidof(IShellItem), (LPVOID *)&t_initial_folder_shellitem);
if (SUCCEEDED(t_hresult))
t_file_dialog -> SetFolder(t_initial_folder_shellitem);
if (t_initial_folder_shellitem != NULL)
t_initial_folder_shellitem -> Release();
t_succeeded = SUCCEEDED(t_hresult);
}
if (t_succeeded && *t_initial_file != NULL)
{
MCAutoStringRefAsWString t_initial_file_wstr;
/* UNCHECKED */ t_initial_file_wstr.Lock(*t_initial_file);
t_hresult = t_file_dialog -> SetFileName(*t_initial_file_wstr);
t_succeeded = SUCCEEDED(t_hresult);
}
if (t_succeeded && p_filter != NULL && (p_options & MCA_OPTION_FOLDER_DIALOG) == 0)
{
uint4 t_filter_length, t_filter_count;
measure_filter(p_filter, t_filter_length, t_filter_count);
MCAutoStringRefAsWString t_filter_wstr;
/* UNCHECKED */ t_filter_wstr.Lock(p_filter);
COMDLG_FILTERSPEC *t_filter_spec;
filter_to_spec(*t_filter_wstr, t_filter_count, t_filter_spec);
t_hresult = t_file_dialog -> SetFileTypes(t_filter_count, t_filter_spec);
t_succeeded = SUCCEEDED(t_hresult);
delete t_filter_spec;
}
if (t_succeeded && p_filter != NULL && (p_options & MCA_OPTION_FOLDER_DIALOG) == 0)
{
t_hresult = t_file_dialog -> SetFileTypeIndex(1);
t_succeeded = SUCCEEDED(t_hresult);
}
if (t_succeeded)
{
MCAutoStringRefAsWString t_prompt_wstr;
/* UNCHECKED */ t_prompt_wstr.Lock(p_prompt);
t_hresult = t_file_dialog -> SetTitle(*t_prompt_wstr);
}
if (t_succeeded)
{
t_hresult = t_file_dialog -> Show(t_window != NULL ? (HWND)t_window -> handle . window : NULL);
t_succeeded = SUCCEEDED(t_hresult);
}
if ((p_options & MCA_OPTION_SAVE_DIALOG) == 0)
{
IShellItemArray *t_file_items;
t_file_items = NULL;
if (t_succeeded)
{
t_hresult = t_file_open_dialog -> GetResults(&t_file_items);
t_succeeded = SUCCEEDED(t_hresult);
}
DWORD t_file_item_count;
if (t_succeeded)
{
t_hresult = t_file_items -> GetCount(&t_file_item_count);
t_succeeded = SUCCEEDED(t_hresult);
}
if (t_succeeded)
{
for(uint4 t_index = 0; t_index < t_file_item_count && t_succeeded; ++t_index)
{
IShellItem *t_file_item;
t_file_item = NULL;
if (t_succeeded)
{
t_hresult = t_file_items -> GetItemAt(t_index, &t_file_item);
t_succeeded = SUCCEEDED(t_hresult);
}
if (t_succeeded)
{
t_hresult = append_shellitem_path_and_release(t_file_item, t_index == 0, &t_value);
t_succeeded = SUCCEEDED(t_hresult);
}
}
}
if (t_file_items != NULL)
t_file_items -> Release();
}
else
{
IShellItem *t_file_item;
t_file_item = NULL;
if (t_succeeded)
{
t_hresult = t_file_dialog -> GetResult(&t_file_item);
t_succeeded = SUCCEEDED(t_hresult);
}
if (t_succeeded)
{
t_hresult = append_shellitem_path_and_release(t_file_item, true, &t_value);
t_succeeded = SUCCEEDED(t_hresult);
}
}
t_filter_index = 0;
if (t_succeeded && (p_options & MCA_OPTION_FOLDER_DIALOG) == 0)
{
UINT t_index;
t_hresult = t_file_dialog -> GetFileTypeIndex(&t_index);
t_succeeded = SUCCEEDED(t_hresult);
if (t_succeeded)
t_filter_index = (int)t_index;
}
if (t_file_dialog != NULL)
t_file_dialog -> Release();
if (!t_succeeded)
t_result = t_hresult;
else
t_result = 0;
}
else
{
OPENFILENAMEW t_open_dialog;
memset(&t_open_dialog, 0, sizeof(OPENFILENAMEW));
t_open_dialog . lStructSize = sizeof(OPENFILENAMEW);
MCAutoStringRefAsWString t_initial_folder_wstr;
MCAutoStringRefAsWString t_prompt_wstr;
MCAutoStringRefAsWString t_filter_wstr;
/* UNCHECKED */ t_filter_wstr.Lock(p_filter);
/* UNCHECKED */ t_initial_folder_wstr.Lock(*t_initial_native_folder);
/* UNCHECKED */ t_prompt_wstr.Lock(p_prompt);
MCAutoArray<unichar_t> t_buffer;
/* UNCHECKED */ t_buffer.New(MAX_PATH);
if (!MCStringIsEmpty(*t_initial_file))
/* UNCHECKED */ MCStringGetChars(*t_initial_file, MCRangeMake(0, t_buffer.Size()), t_buffer.Ptr());
else
t_buffer[0] = '\0';
t_open_dialog . lpstrFilter = *t_filter_wstr;
t_open_dialog . nFilterIndex = 1;
t_open_dialog . lpstrFile = t_buffer.Ptr();
t_open_dialog . nMaxFile = t_buffer.Size();
t_open_dialog . lpstrInitialDir = *t_initial_folder_wstr;
t_open_dialog . lpstrTitle = *t_prompt_wstr;
t_open_dialog . Flags = OFN_FILEMUSTEXIST | OFN_HIDEREADONLY | OFN_NOCHANGEDIR |
OFN_LONGNAMES | OFN_PATHMUSTEXIST | OFN_EXPLORER |
OFN_ENABLEHOOK | OFN_ENABLESIZING;
if (p_options & MCA_OPTION_PLURAL)
t_open_dialog . Flags |= OFN_ALLOWMULTISELECT;
if (p_options & MCA_OPTION_SAVE_DIALOG)
t_open_dialog . Flags |= OFN_OVERWRITEPROMPT;
t_open_dialog . lpstrFilter = *t_filter_wstr;
t_open_dialog . lpfnHook = open_dialog_hook;
t_open_dialog . hwndOwner = t_window != NULL ? (HWND)t_window -> handle . window : NULL;
if (p_options & MCA_OPTION_SAVE_DIALOG)
t_succeeded = GetSaveFileNameW(&t_open_dialog) == TRUE;
else
{
*t_open_dialog . lpstrFile = '\0';
t_succeeded = GetOpenFileNameW(&t_open_dialog) == TRUE;
}
if (!t_succeeded)
t_result = CommDlgExtendedError();
// MW-2005-07-26: Try again without the specified filename if it was invalid
if (t_result == FNERR_INVALIDFILENAME)
{
*t_open_dialog . lpstrFile = '\0';
if (p_options & MCA_OPTION_SAVE_DIALOG)
t_succeeded = GetSaveFileNameW(&t_open_dialog) == TRUE;
else
t_succeeded = GetOpenFileNameW(&t_open_dialog) == TRUE;
if (!t_succeeded)
t_result = CommDlgExtendedError();
}
if (t_result == FNERR_BUFFERTOOSMALL)
t_succeeded = true;
if (t_succeeded)
{
build_paths(&t_value);
t_filter_index = t_open_dialog . nFilterIndex;
}
}
if (t_succeeded)
{
if (p_options & MCA_OPTION_RETURN_FILTER)
{
// The filter string has the following format:
// "<description0>\0<extensions0>\0<description1>\0...\0<extensionsN>\0"
// so the n'th filter comes after the 2(n - 1)'th null character
uindex_t t_index = 2 * (t_filter_index - 1);
uindex_t t_offset = 0;
while (t_index--)
{
/* UNCHECKED */ MCStringFirstIndexOfChar(p_filter, '\0', t_offset, kMCStringOptionCompareExact, t_offset);
t_offset++;
}
uindex_t t_end;
t_end = UINDEX_MAX;
/* UNCHECKED */ MCStringFirstIndexOfChar(p_filter, '\0', t_offset, kMCStringOptionCompareExact, t_end);
/* UNCHECKED */ MCStringCopySubstring(p_filter, MCRangeMake(t_offset, t_end-t_offset), r_result);
}
t_result = 0;
r_value = MCValueRetain(*t_value);
}
else
r_result = MCValueRetain(MCNameGetString(MCN_cancel));
waitonbutton();
return t_result;
}