自学教程：C++ GetExt函数代码示例

int SetApplication(const char * app, const char * filename){	gchar * p=GetExt(app);	if(!p) return 1;	if(strcmp(p,"desktop")) return 1;	char * ext=GetExt(filename);	if(!ext) return 1;//	ClassString setfile = g_strdup_printf("%s/.config/billfm/mime2command.txt",g_get_home_dir());	ClassString setfile=g_build_filename(config_path,"mime2command.txt",NULL);	FILE * f = fopen (setfile.s,"a+");	if(!f)	{			printf("Not open %s/n",setfile.s);		return 1;	}		ClassString str=g_strdup_printf("%s %s/n",ext,app);	fwrite(str.s,strlen(str.s),1,f);	fclose(f);	InsertCommand(ext,g_strdup(app));	return 0;}

void CommandData::ProcessCommand(){#ifndef SFX_MODULE  const wchar *SingleCharCommands=L"FUADPXETK";  if (Command[0]!=0 && Command[1]!=0 && wcschr(SingleCharCommands,Command[0])!=NULL || *ArcName==0)    OutHelp(*Command==0 ? RARX_SUCCESS:RARX_USERERROR); // Return 'success' for 'rar' without parameters.#ifdef _UNIX  if (GetExt(ArcName)==NULL && (!FileExist(ArcName) || IsDir(GetFileAttr(ArcName))))    wcsncatz(ArcName,L".rar",ASIZE(ArcName));#else  if (GetExt(ArcName)==NULL)    wcsncatz(ArcName,L".rar",ASIZE(ArcName));#endif  if (wcschr(L"AFUMD",*Command)==NULL)  {    if (GenerateArcName)      GenerateArchiveName(ArcName,ASIZE(ArcName),GenerateMask,false);    StringList ArcMasks;    ArcMasks.AddString(ArcName);    ScanTree Scan(&ArcMasks,Recurse,SaveSymLinks,SCAN_SKIPDIRS);    FindData FindData;    while (Scan.GetNext(&FindData)==SCAN_SUCCESS)      AddArcName(FindData.Name);  }  else    AddArcName(ArcName);#endif  switch(Command[0])  {    case 'P':    case 'X':    case 'E':    case 'T':    case 'I':      {        CmdExtract Extract(this);        Extract.DoExtract();      }      break;#ifndef SILENT    case 'V':    case 'L':      ListArchive(this);      break;    default:      OutHelp(RARX_USERERROR);#endif  }  if (!BareOutput)    mprintf(L"/n");}

void CommandData::ProcessCommand(){#ifndef SFX_MODULE  if (Command[1] && strchr("FUADPXETK",*Command)!=NULL || *ArcName==0)    OutHelp();#ifdef _UNIX  if (GetExt(ArcName)==NULL && (!FileExist(ArcName) || IsDir(GetFileAttr(ArcName))))    strcat(ArcName,".rar");#else  if (GetExt(ArcName)==NULL)    strcat(ArcName,".rar");#endif  if (strchr("AFUMD",*Command)==NULL)  {    StringList ArcMasks;    ArcMasks.AddString(ArcName);    ScanTree Scan(&ArcMasks,Recurse,SaveLinks,SCAN_SKIPDIRS);    FindData FindData;    while (Scan.GetNext(&FindData)==SCAN_SUCCESS)      AddArcName(FindData.Name,FindData.NameW);  }  else    AddArcName(ArcName,NULL);#endif  switch(Command[0])  {    case 'P':    case 'X':    case 'E':    case 'T':    case 'I':      {        CmdExtract Extract;        Extract.DoExtract(this);      }      break;#if !defined(GUI) && !defined(SILENT)    case 'V':    case 'L':      ListArchive(this);      break;    default:      OutHelp();#endif  }#ifndef GUI  if (!BareOutput)    mprintf("/n");#endif}

char *ReadFileBuf(char *name, int *size){    FILE *fp;    char *buf, *ext;    int txt = 1;    int n;    ext = GetExt(name);    if (!StrCmp(ext, ".txt")) {        txt = 1;    } else {        txt = 0;    }    fp = FOpen(name, "rb");    if (fp == NULL) {        return NULL;    }    fseek(fp, 0, SEEK_END);    n = ftell(fp);    fseek(fp, 0, SEEK_SET);    buf = (char *)Malloc(sizeof(char) * n);    fread(buf, sizeof(char), n, fp);    if (txt) {        buf[n - 1] = '/0';    }    FClose(fp);    *size = n;    return buf;}

bool GetAutoRenamedName(wchar *Name,size_t MaxNameSize){  wchar NewName[NM];  size_t NameLength=wcslen(Name);#ifdef _ANDROID  if (NameLength>ASIZE(NewName)-10)    return false;#endif  wchar *Ext=GetExt(Name);  if (Ext==NULL)    Ext=Name+NameLength;  for (uint FileVer=1;;FileVer++)  {#ifdef _ANDROID // No swprintf in Android NDK r9.    uint NamePrefixLength=Ext-Name;    wcsncpy(NewName,Name,NamePrefixLength);    wcscpy(NewName+NamePrefixLength,L"(");    itoa(FileVer,NewName+NamePrefixLength+1,ASIZE(NewName)-NamePrefixLength-1);    wcsncatz(NewName,L")",ASIZE(NewName));    wcsncatz(NewName,Ext,ASIZE(NewName));#else    swprintf(NewName,ASIZE(NewName),L"%.*ls(%u)%ls",uint(Ext-Name),Name,FileVer,Ext);#endif    if (!FileExist(NewName))    {      wcsncpyz(Name,NewName,MaxNameSize);      break;    }    if (FileVer>=1000000)      return false;  }  return true;}

static int CheckExt(char *filename){	int i;	char *ext = GetExt(filename);	for (i = 0; nez_extlist[i]; i++) if (!xstricmp(ext, nez_extlist[i])) return 1;	return 0;}

static int GetMimeForFile(const char * name, struct stat * file_stat){	if(S_ISDIR(file_stat->st_mode))	return 1;	if(S_ISFIFO(file_stat->st_mode))	return 0;	ClassString p=GetExt(name);	if(p.s)	{			if(!strcmp(p.s,"desktop"))		{			ClassString s=GetIconDesktopName(name);			if(!s.s)			{					return 0;			}				return InsertIconName(s.s);		}		InfoMime * info= find_mime(p.s);			if(info)		{			if(info->icon_index) return info->icon_index;		}	}	return IsExecute(name,file_stat,0);}

void NextVolumeName(char *ArcName,bool OldNumbering){  char *ChPtr;  if ((ChPtr=GetExt(ArcName))==NULL)  {    strcat(ArcName,".rar");    ChPtr=GetExt(ArcName);  }  else    if (ChPtr[1]==0 || stricomp(ChPtr+1,"exe")==0 || stricomp(ChPtr+1,"sfx")==0)      strcpy(ChPtr+1,"rar");  if (!OldNumbering)  {    ChPtr=GetVolNumPart(ArcName);    while ((++(*ChPtr))=='9'+1)    {      *ChPtr='0';      ChPtr--;      if (ChPtr<ArcName || !isdigit(*ChPtr))      {        for (char *EndPtr=ArcName+strlen(ArcName);EndPtr!=ChPtr;EndPtr--)          *(EndPtr+1)=*EndPtr;        *(ChPtr+1)='1';        break;      }    }  }  else    if (!isdigit(*(ChPtr+2)) || !isdigit(*(ChPtr+3)))      strcpy(ChPtr+2,"00");    else    {      ChPtr+=3;      while ((++(*ChPtr))=='9'+1)        if (*(ChPtr-1)=='.')        {          *ChPtr='A';          break;        }        else        {          *ChPtr='0';          ChPtr--;        }    }}

void NextVolumeName(wchar *ArcName,uint MaxLength,bool OldNumbering){  wchar *ChPtr;  if ((ChPtr=GetExt(ArcName))==NULL)  {    wcsncatz(ArcName,L".rar",MaxLength);    ChPtr=GetExt(ArcName);  }  else    if (ChPtr[1]==0 && wcslen(ArcName)<MaxLength-3 || wcsicomp(ChPtr+1,L"exe")==0 || wcsicomp(ChPtr+1,L"sfx")==0)      wcscpy(ChPtr+1,L"rar");  if (!OldNumbering)  {    ChPtr=GetVolNumPart(ArcName);    while ((++(*ChPtr))=='9'+1)    {      *ChPtr='0';      ChPtr--;      if (ChPtr<ArcName || !IsDigit(*ChPtr))      {        for (wchar *EndPtr=ArcName+wcslen(ArcName);EndPtr!=ChPtr;EndPtr--)          *(EndPtr+1)=*EndPtr;        *(ChPtr+1)='1';        break;      }    }  }  else    if (!IsDigit(*(ChPtr+2)) || !IsDigit(*(ChPtr+3)))      wcscpy(ChPtr+2,L"00");    else    {      ChPtr+=3;      while ((++(*ChPtr))=='9'+1)        if (*(ChPtr-1)=='.')        {          *ChPtr='A';          break;        }        else        {          *ChPtr='0';          ChPtr--;        }    }}

	void OnSyncUserMetaData(userrec* user, Module* proto,void* opaque, const std::string &extname, bool displayable)	{		if ((displayable) && (extname == "IDENT"))		{			std::string* ident;			if (GetExt("IDENT", ident))				proto->ProtoSendMetaData(opaque, TYPE_USER, user, extname, *ident);		}	}

bool GetAutoRenamedName(char *Name,wchar *NameW){  char NewName[NM];  wchar NewNameW[NM];  if ((Name!=NULL && strlen(Name)>ASIZE(NewName)-10) ||       (NameW!=NULL && wcslen(NameW)>ASIZE(NewNameW)-10))    return(false);  char *Ext=NULL;  if (Name!=NULL && *Name!=0)  {    Ext=GetExt(Name);    if (Ext==NULL)      Ext=Name+strlen(Name);  }  wchar *ExtW=NULL;  if (NameW!=NULL && *NameW!=0)  {    ExtW=GetExt(NameW);    if (ExtW==NULL)      ExtW=NameW+wcslen(NameW);  }  *NewName=0;  *NewNameW=0;  for (int FileVer=1;;FileVer++)  {    if (Name!=NULL && *Name!=0)      sprintf(NewName,"%.*s(%d)%s",int(Ext-Name),Name,FileVer,Ext);    if (NameW!=NULL && *NameW!=0)      sprintfw(NewNameW,ASIZE(NewNameW),L"%.*s(%d)%s",int(ExtW-NameW),NameW,FileVer,ExtW);    if (!FileExist(NewName,NewNameW))    {      if (Name!=NULL && *Name!=0)        strcpy(Name,NewName);      if (NameW!=NULL && *NameW!=0)        wcscpy(NameW,NewNameW);      break;    }    if (FileVer>=1000000)      return(false);  }  return(true);}

static bool ParseProfilesDir(){	if(!dir)		return false;	char *ext;	struct dirent *entry = NULL;	int i = 0;	while(i < MAX_BROWSER_SIZE)	{		entry = readdir(dir);		if(entry == NULL)			break;		if(entry->d_name[0] == '.' && entry->d_name[1] != '.')			continue;		if(strcmp(entry->d_name, "..") == 0)			continue;		if(entry->d_type==DT_DIR) continue;		ext = GetExt(entry->d_name);		if(ext == NULL || stricmp(ext, "wtp") != 0)			continue;		if(!AddBrowserEntry())		{			break;		}		snprintf(browserList[browser.numEntries+i].filename, MAXJOLIET, "%s", entry->d_name);		StripExt(browserList[browser.numEntries+i].displayname, browserList[browser.numEntries+i].filename); // hide file extension		i++;	}	// Sort the file list	if(i >= 0)		qsort(browserList, browser.numEntries+i, sizeof(BROWSERENTRY), FileSortCallback);	browser.numEntries += i;	if(entry == NULL)	{		closedir(dir); // close directory		dir = NULL;		return false; // no more entries	}	return true; // more entries}

void ConvertWav(const char *pSearch){	WIN32_FIND_DATA fd;	char poo[1024];	strcpy(poo, pSearch);	strcat(poo, "//*");	HANDLE find = FindFirstFile(poo, &fd);	if(find == INVALID_HANDLE_VALUE)	{		printf("Something went very wrong :(/n");		return;	}	BOOL found = true;	while(found)	{		if(strcmp(fd.cFileName, ".") && strcmp(fd.cFileName, ".."))		{			if(fd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)			{				strcpy(poo, pSearch);				strcat(poo, "//");				strcat(poo, fd.cFileName);				ConvertWav(poo);			}			else if(!stricmp(GetExt(fd.cFileName),"wav"))			{				strcpy(poo, "C://oggenc -q4 /"");				strcat(poo, pSearch);				strcat(poo, "//");				strcat(poo, fd.cFileName);				strcat(poo, "/"");				system(poo);				strcpy(poo, "del /"");				strcat(poo, pSearch);				strcat(poo, "//");				strcat(poo, fd.cFileName);				strcat(poo, "/"");				system(poo);			}		}		found = FindNextFile(find, &fd);	}	FindClose(find);}

GdkPixbuf * GetIconByName(const char * name, int size){    if(name[0]=='~')	{			ClassString str=g_strdup_printf("%s%s",g_get_home_dir(),&name[1]);		return gdk_pixbuf_new_from_file_at_scale(str.s,size,size,1,0);	}		if(name[0]=='/')	{		return gdk_pixbuf_new_from_file_at_scale(name,size,size,1,0);	}	if(name[0]=='.')	{		ClassString str=g_strdup_printf("%s%s",app_path,&name[1]);		return gdk_pixbuf_new_from_file_at_scale(str.s,size,size,1,0);	}		GtkIconTheme * icon_theme = gtk_icon_theme_get_default();	GtkIconInfo* inf = gtk_icon_theme_lookup_icon( icon_theme, name, size, 	                                              GTK_ICON_LOOKUP_USE_BUILTIN );	if(!inf)	{		ClassString ext=GetExt(name);		if(ext.s)		{			gchar * new_name=g_strdup(name);			new_name[strlen(name)-1-strlen(ext.s)]=0;			inf = gtk_icon_theme_lookup_icon( icon_theme, new_name, size, 	                                              GTK_ICON_LOOKUP_USE_BUILTIN );					}	}	if(inf)	{		const char * file = gtk_icon_info_get_filename( inf );		if(file)		{				GdkPixbuf * pixbuf=gdk_pixbuf_new_from_file( file, NULL );			if(pixbuf)			{					return gdk_pixbuf_scale_simple(pixbuf,size,size,GDK_INTERP_BILINEAR);			}			}					} else	{		printf("Not found inf %s/n",name);	}				return 0;}

void CommandData::ProcessCommand(){#ifndef SFX_MODULE  const char *SingleCharCommands="FUADPXETK";  if (Command[1] && strchr(SingleCharCommands,*Command)!=NULL || *ArcName==0)    OutHelp();  	  //get filename *ArcName#ifdef _UNIX  if (GetExt(ArcName)==NULL && (!FileExist(ArcName) || IsDir(GetFileAttr(ArcName))))    strcat(ArcName,".rar");#endif  	  //printf("test4  %c  %s/n",*Command,ArcName);  	  //找文件，将ArcName传到FindData.Name  if (strchr("AFUMD",*Command)==NULL)  {    StringList ArcMasks;    ArcMasks.AddString(ArcName);    ScanTree Scan(&ArcMasks,Recurse,SaveLinks,SCAN_SKIPDIRS);    FindData FindData;    while (Scan.GetNext(&FindData)==SCAN_SUCCESS)      AddArcName(FindData.Name,FindData.NameW);		//FindData.Name 	"ere.rar"  }#endif  switch(Command[0])  {    case 'P':    case 'X':    case 'E':    case 'T':    case 'I':      {    	printf("/nXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX/n");        CmdExtract Extract;        Extract.DoExtract(this);        printf("/nXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX/n");      }      break;#ifndef SILENT    case 'V':    case 'L':      ListArchive(this);      break;    default:      OutHelp();#endif  }  if (!BareOutput)    mprintf("/n");}

// Get the name of first volume. Return the leftmost digit of volume number.wchar* VolNameToFirstName(const wchar *VolName,wchar *FirstName,size_t MaxSize,bool NewNumbering){  if (FirstName!=VolName)    wcsncpyz(FirstName,VolName,MaxSize);  wchar *VolNumStart=FirstName;  if (NewNumbering)  {    wchar N='1';    // From the rightmost digit of volume number to the left.    for (wchar *ChPtr=GetVolNumPart(FirstName);ChPtr>FirstName;ChPtr--)      if (IsDigit(*ChPtr))      {        *ChPtr=N; // Set the rightmost digit to '1' and others to '0'.        N='0';      }      else        if (N=='0')        {          VolNumStart=ChPtr+1; // Store the position of leftmost digit in volume number.          break;        }  }  else  {    // Old volume numbering scheme. Just set the extension to ".rar".    SetExt(FirstName,L"rar",MaxSize);    VolNumStart=GetExt(FirstName);  }  if (!FileExist(FirstName))  {    // If the first volume, which name we just generated, is not exist,    // check if volume with same name and any other extension is available.    // It can help in case of *.exe or *.sfx first volume.    wchar Mask[NM];    wcsncpyz(Mask,FirstName,ASIZE(Mask));    SetExt(Mask,L"*",ASIZE(Mask));    FindFile Find;    Find.SetMask(Mask);    FindData FD;    while (Find.Next(&FD))    {      Archive Arc;      if (Arc.Open(FD.Name,0) && Arc.IsArchive(true) && Arc.FirstVolume)      {        wcsncpyz(FirstName,FD.Name,MaxSize);        break;      }    }  }  return VolNumStart;}

void JButton::OnMouse( JMouseEvent& m ){    //  check if button being pressed    if ((m.Action() == aKeyDown || m.Action() == aDblClick) &&        m.MouseKey() == mkLeft)    {        if (m_bTwoState)        {            if (m_bPressed)            {                Unpress();            }            else            {                Press();            }        }        else        {            CaptureMouse( true );            Press();        }        SetFocus();        m.Consume();    }    //  check if being unpressed (for one-state buttons)    if (m.Action() == aKeyUp &&        m.MouseKey() == mkLeft && !m_bTwoState)    {        CaptureMouse( false );        Unpress();        m.Consume();    }    //  automatically unpress when leaving button area    if (m.Action() == aMouseMove &&        !GetExt().PtIn( m.MouseX(), m.MouseY() ) &&        m_bPressed)    {        CaptureMouse( false );        if (!m_bTwoState)        {            Unpress();        }    }    if (IsConsumeEvents())    {        m.Consume();    }} // JButton::OnMouse

void SetExt(wchar *Name,const wchar *NewExt,size_t MaxSize){  if (Name==NULL || *Name==0)    return;  wchar *Dot=GetExt(Name);  if (Dot!=NULL)    *Dot=0;  if (NewExt!=NULL)  {    wcsncatz(Name,L".",MaxSize);    wcsncatz(Name,NewExt,MaxSize);  }}

void FbExportDlg::ChangeFormat(FbExportTreeModel * model){	int format = m_format->GetValue();	int scale = format < 0 ? 43 : 100;	wxString arc, ext;	switch (format) {		case -1: arc = wxT("zip"); break;		case -2: arc = wxT("gz"); break;		case -3: arc = wxT("bz2"); break;	}	model->SetFormat(GetExt(format), arc, scale);	model->SetTransDir(m_transDir->GetValue());	model->SetTransFile(m_transFile->GetValue());}

void JSlidePiece::DrawBounds(){    Frame ext = GetExt();    g_pDrawServer->DrawFrame( ext,  0xFFFFFF00 );    char str[256];    sprintf( str, "%s: {%d, %d}", GetName(), (int)ext.x, (int)ext.y );    Vec2 spos( ext.x + 10, ext.cy() );    g_pDrawServer->DrawString( spos.x, spos.y, -1, str, 0xFFFF4444 );    ext.w = g_pDrawServer->GetFrameW( GetSkinPackID(), GetSkinFrame() );    ext.h = g_pDrawServer->GetFrameH( GetSkinPackID(), GetSkinFrame() );} // JSlidePiece::DrawBounds

void TestFileNameTools(void){	char whole[]="c:/windows/system32/abc.dll";	char des[256];	GetDir(whole,des);	printf("%s/n",des);	GetName(whole,des);	printf("%s/n",des);	GetExt(whole,des);	printf("%s/n",des);}

gchar * CheckDesktopFile(const char * name){  if(name[0]=='/') return g_strdup(name);   ClassString str=GetExt(name);    if(!str.s || strcmp(str.s,"desktop") )  {	  str=g_strdup_printf("%s.desktop",name);	  } else str=g_strdup(name);  if(name[0]=='~') str=g_strdup_printf("%s%s",g_get_home_dir(),&str.s[1]);	else str=g_strdup_printf("/usr/share/applications/%s",str.s);	 return g_strdup(str.s);}

bool JSlidePiece::PtIn( int px, int py ) const{    int spID = GetSkinPackID();    int frID = GetSkinFrame();    Frame ext = GetExt();    if (spID == -1 || frID == -1)    {        return ext.PtIn( px, py );    }    Vec2 pixPos( float( px ) - ext.x, float( py ) - ext.y );    DWORD clr = g_pDrawServer->GetPixel( spID, frID, pixPos );    DWORD alpha = (clr&0xFF000000)>>24;    return (alpha > 0x50);} // JSlidePiece::PtIn

GList * GetMimeListCommand(const char *name){	if(!name) return 0; 	ClassString command;	gchar * p=GetExt(name);	if(!p) return 0;	InfoMime * info= find_mime(p);		if(info)	{		return g_list_first (info->list_command);	}	g_free(p);	return 0;}

void ClickExecFile(const char * name, struct stat * file_stat){	 	if(IsArchve(name))	{   		const char * dirname=Panels[ActivePanel]->SetArchiveName(name);		ExternalListTar(name,dirname);		Panels[ActivePanel]->LoadDir(dirname);		return;			}		ClassString command;	gchar * p=GetExt(name);	if(p)	{			if(!strcmp(p,"desktop"))		{			ClassString  command=GetDesktopKey(name,"Exec");			command = g_strdup_printf("%s &",command.s);			system(command.s);			return;		}			InfoMime * info= find_mime(p);			if(info)		{			GList *list=g_list_first (info->list_command);			if(list)			{					command=GetDesktopCommand((gchar*)list->data);				if(command.s)				{					command=g_strdup_printf("%s '%s' &",command.s,name);				}	else printf("Не найдена команда %s/n",(gchar*)list->data);							}			}		g_free(p);	} else		if(IsExecute(name,file_stat,1))	{		command = g_strdup_printf("/"%s/" &",name);	}	if(command.s) system(command.s);}

char* VolNameToFirstName(const char *VolName,char *FirstName,bool NewNumbering){  if (FirstName!=VolName)    strcpy(FirstName,VolName);  char *VolNumStart=FirstName;  if (NewNumbering)  {    int N='1';    for (char *ChPtr=GetVolNumPart(FirstName);ChPtr>FirstName;ChPtr--)      if (isdigit(*ChPtr))      {        *ChPtr=N;        N='0';      }      else        if (N=='0')        {          VolNumStart=ChPtr+1;          break;        }  }  else  {    SetExt(FirstName,"rar");    VolNumStart=GetExt(FirstName);  }  if (!FileExist(FirstName))  {    char Mask[NM];    strcpy(Mask,FirstName);    SetExt(Mask,"*");    FindFile Find;    Find.SetMask(Mask);    struct FindData FD;    while (Find.Next(&FD))    {      Archive Arc;      if (Arc.Open(FD.Name,FD.NameW) && Arc.IsArchive(true) && !Arc.NotFirstVolume)      {        strcpy(FirstName,FD.Name);        break;      }    }  }  return(VolNumStart);}

void SetExt(char *Name,const char *NewExt){  char *Dot=GetExt(Name);  if (NewExt==NULL)  {    if (Dot!=NULL)      *Dot=0;  }  else    if (Dot==NULL)    {      strcat(Name,".");      strcat(Name,NewExt);    }    else      strcpy(Dot+1,NewExt);}

void SetExt(wchar *Name,const wchar *NewExt){  if (Name==NULL || *Name==0)    return;  wchar *Dot=GetExt(Name);  if (NewExt==NULL)  {    if (Dot!=NULL)      *Dot=0;  }  else    if (Dot==NULL)    {      wcscat(Name,L".");      wcscat(Name,NewExt);    }    else      wcscpy(Dot+1,NewExt);}

bool JBlotPiece::PtIn( int px, int py ) const{    int spID = GetSkinPackID();    int frID = GetSkinFrame();    Frame ext = GetExt();    if (spID == -1 || frID == -1)    {        return ext.PtIn( px, py );    }    Vec2 pixPos( float( px ) - ext.x, float( py ) - ext.y );    float scale;    if (m_bSelected) scale = m_Scale; else scale = 1.0f;    pixPos /= scale;    DWORD clr = g_pDrawServer->GetPixel( spID, frID, pixPos );    DWORD alpha = (clr&0xFF000000)>>24;    return (alpha > 0x50);} // JBlotPiece::PtIn