This is an updated version that will search up & down. I also added a GADGET_MENU_FINDNEXT menu item. Just create it and the application will handle everything, including enabling and disabling the menu. You should disable the GADGET_MENU_FINDNEXT menu item when it is created.
Strict Import brl.maxgui Private Global FindWindow:TGadget Global GADGET_FIND_TEXT:TGadget Global GADGET_FIND_OK:TGadget Global GADGET_FIND_CANCEL:TGadget Global GADGET_FIND_UP:TGadget Global GADGET_FIND_DOWN:TGadget Global GADGET_FIND_MATCHCASE:TGadget Public Global GADGET_MENU_FIND:TGadget Global GADGET_MENU_FINDNEXT:TGadget Global GADGET_FIND_TEXTAREA:TGadget Function CreateFindWindow(group:TGadget,textarea:TGadget) Local panel:TGadget Local flags flags=WINDOW_TITLEBAR|WINDOW_HIDDEN'|WINDOW_CENTER|WINDOW_DIALOG FindWindow=CreateWindow("Find",200,200,360,133,group,flags) CreateLabel("Find what:",10,11,60,16,FindWindow) GADGET_FIND_TEXT=CreateTextField(71,11,192,20,FindWindow) GADGET_FIND_OK=CreateButton("Find Next",274-1,10,73+2,21+2,FindWindow,BUTTON_OK) GADGET_FIND_CANCEL=CreateButton("Cancel",274-1,33+2,73+2,21+2,FindWindow,BUTTON_CANCEL) GADGET_FIND_MATCHCASE=CreateButton("Match case",7,71,80,16,FindWindow,BUTTON_CHECKBOX) DisableGadget GADGET_FIND_OK panel=CreatePanel(160,48,102,44,FindWindow,PANEL_GROUP,"Direction") GADGET_FIND_UP=CreateButton("Up",5,7,35,16,panel,BUTTON_RADIO) GADGET_FIND_DOWN=CreateButton("Down",46,7,46,16,panel,BUTTON_RADIO) SetButtonState GADGET_FIND_DOWN,1 GADGET_FIND_TEXTAREA=textarea AddHook EmitEventHook,FindWindowHook EndFunction Private Function Find() Local text$,p,searchstring$ text=TextAreaText(GADGET_FIND_TEXTAREA) If text="" Return If Not ButtonState(GADGET_FIND_MATCHCASE) text=Lower(text) p=TextAreaCursor(GADGET_FIND_TEXTAREA) searchstring=TextFieldText(GADGET_FIND_TEXT) If Not ButtonState(GADGET_FIND_MATCHCASE) searchstring=Lower(searchstring) If ButtonState(GADGET_FIND_UP) text=ReverseString(text) searchstring=reversestring(searchstring) p=text.length-p EndIf p=text.find(searchstring,p+1) If p>-1 If ButtonState(GADGET_FIND_UP) p=text.length-p p=p-searchstring.length EndIf SelectTextAreaText GADGET_FIND_TEXTAREA,p,searchstring.length Else Notify "Cannot find ~q"+TextFieldText(GADGET_FIND_TEXT)+"~q" EndIf Function ReverseString$(s$) Local n Local rs$ For n=0 To s.length-1 rs:+Chr(s[s.length-1-n]) Next Return rs EndFunction EndFunction Function FindWindowHook:Object(id:Int,data:Object,context:Object) Global LastActiveGadget:TGadget If data=Null Return Null Local event:TEvent=TEvent(data) Select event.id Case EVENT_GADGETACTION Select event.source Case GADGET_FIND_OK Find() ActivateGadget GADGET_FIND_OK Case GADGET_FIND_TEXT If TextFieldText(GADGET_FIND_TEXT)="" DisableGadget GADGET_FIND_OK If GADGET_MENU_FINDNEXT DisableGadget GADGET_MENU_FINDNEXT UpdateWindowMenu GadgetGroup(FindWindow) EndIf Else EnableGadget GADGET_FIND_OK If GADGET_MENU_FINDNEXT EnableGadget GADGET_MENU_FINDNEXT UpdateWindowMenu GadgetGroup(FindWindow) EndIf EndIf Case GADGET_FIND_CANCEL EmitEvent CreateEvent(EVENT_WINDOWCLOSE,FindWindow) EndSelect Case EVENT_MENUACTION Select event.source Case GADGET_MENU_FIND LastActiveGadget=ActiveGadget() ShowGadget FindWindow ActivateGadget GADGET_FIND_OK ActivateGadget GADGET_FIND_TEXT Case GADGET_MENU_FINDNEXT Find() EndSelect Case EVENT_WINDOWCLOSE Select event.source Case FindWindow If LastActiveGadget ActivateGadget LastActiveGadget Else ActivateGadget GadgetGroup(FindWindow) EndIf HideGadget FindWindow EndSelect EndSelect Return data EndFunction Public