diff --git a/cimgui.h b/cimgui.h
index 43c2f2d..a43a5b1 100644
--- a/cimgui.h
+++ b/cimgui.h
@@ -4989,7 +4989,7 @@ CIMGUI_API void igImFontAtlasBuildMultiplyRectAlpha8(const unsigned char table[2
 
 /////////////////////////hand written functions
 //no LogTextV
-CIMGUI_API void igLogText(CONST char *fmt, ...);
+CIMGUI_API void igLogText(const char *fmt, ...);
 //no appendfV
 CIMGUI_API void ImGuiTextBuffer_appendf(struct ImGuiTextBuffer *buffer, const char *fmt, ...);
 //for getting FLT_MAX in bindings
diff --git a/generator/cimgui_template.h b/generator/cimgui_template.h
index e46202f..d977cad 100644
--- a/generator/cimgui_template.h
+++ b/generator/cimgui_template.h
@@ -47,7 +47,7 @@ typedef union SDL_Event SDL_Event;
 
 /////////////////////////hand written functions
 //no LogTextV
-CIMGUI_API void igLogText(CONST char *fmt, ...);
+CIMGUI_API void igLogText(const char *fmt, ...);
 //no appendfV
 CIMGUI_API void ImGuiTextBuffer_appendf(struct ImGuiTextBuffer *buffer, const char *fmt, ...);
 //for getting FLT_MAX in bindings
diff --git a/generator/cpp2ffi.lua b/generator/cpp2ffi.lua
index 81c812b..2c231d2 100644
--- a/generator/cpp2ffi.lua
+++ b/generator/cpp2ffi.lua
@@ -673,14 +673,18 @@ local function CleanImU32(def)
 	for i=1,#bb do res = res + bb[i] end 
 	return res
 end
+local function moveptr(line)
+	line = line:gsub("%s*%*","%*")
+	line = line:gsub("%*([%w_])","%* %1")
+	line = line:gsub("(%(%*)%s","%1")
+	return line
+end
 local function parseFunction(self,stname,itt,namespace,locat)
 
 	local lineorig,comment = split_comment(itt.item)
 	line = clean_spaces(lineorig)
 	--move *
-	line = line:gsub("%s*%*","%*")
-	line = line:gsub("%*([%w_])","%* %1")
-	line = line:gsub("(%(%*)%s","%1")
+	line = moveptr(line)
 
 	--print(line)
     --clean implemetation
@@ -719,6 +723,21 @@ local function parseFunction(self,stname,itt,namespace,locat)
 		error"parseFunction not getting args"
     end
 	
+	--get manuals args and ret
+	local cname = self.getCname(stname,funcname, namespace) --cimguiname
+	local manpars = self.manuals[cname]
+	local ismanual
+    if manpars then
+		if type(manpars) == "boolean" then
+			print("warning: unable to get args and ret from "..cname)
+			print("did you forgot to use set_manuals? ")
+		else
+			ismanual = true
+			args, ret = manpars.args, manpars.ret
+			args = moveptr(args)
+			ret = moveptr(ret)
+		end
+	end
 	
 	local argsp = args:sub(2,-2)..","
 	local argsTa = {}
@@ -734,6 +753,8 @@ local function parseFunction(self,stname,itt,namespace,locat)
 			argsTa[#argsTa+1] = tynam
 		end
 	end
+	
+	
 	--- templates in args
 	for i,ar in ipairs(argsTa) do
 		--TODO several diferent templates
@@ -747,7 +768,7 @@ local function parseFunction(self,stname,itt,namespace,locat)
 		end
 	    argsTa[i] = te and code2 or ar --ar:gsub("<([%w_%*%s]+)>",te) --ImVector
 	end
-	
+
 	--get typ, name and defaults
 	local functype_re =        "^%s*[%w%s%*]+%(%*%s*[%w_]+%)%([^%(%)]*%)"
     local functype_reex =     "^(%s*[%w%s%*]+)%(%*%s*([%w_]+)%)(%([^%(%)]*%))"
@@ -807,6 +828,7 @@ local function parseFunction(self,stname,itt,namespace,locat)
         end
 	end
 	
+
 	local argsArr = argsTa2
 
 	--recreate argscsinpars, call_args and signature from argsArr
@@ -838,7 +860,7 @@ local function parseFunction(self,stname,itt,namespace,locat)
 		caar = "()"
 		signat = "()" .. (extraconst or "")
 	end
-
+	--if ismanual then print("manual",asp, caar, signat) end
     ------------------------------
     
     if not ret and stname then --must be constructors
@@ -871,6 +893,9 @@ local function parseFunction(self,stname,itt,namespace,locat)
 			ar.default = nil
 		end
 	end
+	
+	--if ismanual then M.prtable(argsArr) end
+	
 	defT.templated = self.typenames[stname] and true
 	defT.namespace = namespace
     defT.cimguiname = cimguiname
@@ -901,6 +926,7 @@ local function parseFunction(self,stname,itt,namespace,locat)
         -- end
     end
 	defsT[cimguiname][signat] = defT
+	
 end
 local function itemsCount(items)
 	print"------------items"
@@ -913,8 +939,8 @@ end
 
 local function AdjustArguments(FP)
     for fun,defs in pairs(FP.defsT) do
-        --struct function but no constructors or static functions
-        if defs[1].stname~="" and defs[1].ret and not defs[1].is_static_function then
+        --struct function but no constructors or static functions or manuals
+        if defs[1].stname~="" and defs[1].ret and not defs[1].is_static_function and not defs[1].manual then
             --print("adjusting",fun)
             for i,def in ipairs(defs) do
                 local empty = def.args:match("^%(%)") --no args
@@ -1408,6 +1434,20 @@ function M.Parser()
 	function par:printItems()
 		printItems(items)
 	end
+	function par:set_manuals(manuals, modulen, erase)
+		erase = erase or {"CIMGUI_API"}
+		local moddata = read_data("./"..modulen.."_template.h")
+		for k,v in pairs(manuals) do
+			local ret = moddata:match("([^%(%):,\n;]+[%*%s])%s?~?"..k.."%b()")
+			for i,ww in ipairs(erase) do
+				ret = ret:gsub(ww,"")
+			end
+			local args = moddata:match(k.."%s*(%b())")
+			manuals[k] = {args = args, ret = ret}
+			--print(k,args,ret)
+		end
+		self.manuals = manuals
+	end
 	par.parseFunction = parseFunction
 	local uniques = {}
 	local function check_unique_typedefs(l,uniques)
diff --git a/generator/generator.lua b/generator/generator.lua
index 5745755..1212769 100644
--- a/generator/generator.lua
+++ b/generator/generator.lua
@@ -318,7 +318,8 @@ local function parseImGuiHeader(header,names)
 		return pre..funcname
 	end
 	parser.cname_overloads = cimgui_overloads
-	parser.manuals = cimgui_manuals
+	--parser.manuals = cimgui_manuals
+	parser:set_manuals(cimgui_manuals, "cimgui")
 	parser.skipped = cimgui_skipped
 	parser.UDTs = {"ImVec2","ImVec4","ImColor","ImRect"}
 	--parser.gen_template_typedef = gen_template_typedef --use auto
diff --git a/generator/output/definitions.json b/generator/output/definitions.json
index 879cf3b..9e2e3fe 100644
--- a/generator/output/definitions.json
+++ b/generator/output/definitions.json
@@ -9773,23 +9773,23 @@
   ],
   "ImGuiTextBuffer_appendf": [
     {
-      "args": "(ImGuiTextBuffer* self,const char* fmt,...)",
+      "args": "(struct ImGuiTextBuffer* buffer, const char* fmt,...)",
       "argsT": [
         {
-          "name": "self",
-          "type": "ImGuiTextBuffer*"
+          "name": "buffer",
+          "type": "struct ImGuiTextBuffer*"
         },
         {
           "name": "fmt",
-          "type": "const char*"
+          "type": " const char*"
         },
         {
           "name": "...",
           "type": "..."
         }
       ],
-      "argsoriginal": "(const char* fmt,...)",
-      "call_args": "(fmt,...)",
+      "argsoriginal": "(struct ImGuiTextBuffer* buffer, const char* fmt, ...)",
+      "call_args": "(buffer,fmt,...)",
       "cimguiname": "ImGuiTextBuffer_appendf",
       "defaults": {},
       "funcname": "appendf",
@@ -9798,7 +9798,7 @@
       "manual": true,
       "ov_cimguiname": "ImGuiTextBuffer_appendf",
       "ret": "void",
-      "signature": "(const char*,...)",
+      "signature": "(struct ImGuiTextBuffer*, const char*,...)",
       "stname": "ImGuiTextBuffer"
     }
   ],
@@ -28904,7 +28904,7 @@
           "type": "..."
         }
       ],
-      "argsoriginal": "(const char* fmt,...)",
+      "argsoriginal": "(const char* fmt, ...)",
       "call_args": "(fmt,...)",
       "cimguiname": "igLogText",
       "defaults": {},
diff --git a/generator/output/definitions.lua b/generator/output/definitions.lua
index 96f890e..ca9165b 100644
--- a/generator/output/definitions.lua
+++ b/generator/output/definitions.lua
@@ -8225,19 +8225,19 @@ defs["ImGuiTextBuffer_append"][1]["stname"] = "ImGuiTextBuffer"
 defs["ImGuiTextBuffer_append"]["(const char*,const char*)"] = defs["ImGuiTextBuffer_append"][1]
 defs["ImGuiTextBuffer_appendf"] = {}
 defs["ImGuiTextBuffer_appendf"][1] = {}
-defs["ImGuiTextBuffer_appendf"][1]["args"] = "(ImGuiTextBuffer* self,const char* fmt,...)"
+defs["ImGuiTextBuffer_appendf"][1]["args"] = "(struct ImGuiTextBuffer* buffer, const char* fmt,...)"
 defs["ImGuiTextBuffer_appendf"][1]["argsT"] = {}
 defs["ImGuiTextBuffer_appendf"][1]["argsT"][1] = {}
-defs["ImGuiTextBuffer_appendf"][1]["argsT"][1]["name"] = "self"
-defs["ImGuiTextBuffer_appendf"][1]["argsT"][1]["type"] = "ImGuiTextBuffer*"
+defs["ImGuiTextBuffer_appendf"][1]["argsT"][1]["name"] = "buffer"
+defs["ImGuiTextBuffer_appendf"][1]["argsT"][1]["type"] = "struct ImGuiTextBuffer*"
 defs["ImGuiTextBuffer_appendf"][1]["argsT"][2] = {}
 defs["ImGuiTextBuffer_appendf"][1]["argsT"][2]["name"] = "fmt"
-defs["ImGuiTextBuffer_appendf"][1]["argsT"][2]["type"] = "const char*"
+defs["ImGuiTextBuffer_appendf"][1]["argsT"][2]["type"] = " const char*"
 defs["ImGuiTextBuffer_appendf"][1]["argsT"][3] = {}
 defs["ImGuiTextBuffer_appendf"][1]["argsT"][3]["name"] = "..."
 defs["ImGuiTextBuffer_appendf"][1]["argsT"][3]["type"] = "..."
-defs["ImGuiTextBuffer_appendf"][1]["argsoriginal"] = "(const char* fmt,...)"
-defs["ImGuiTextBuffer_appendf"][1]["call_args"] = "(fmt,...)"
+defs["ImGuiTextBuffer_appendf"][1]["argsoriginal"] = "(struct ImGuiTextBuffer* buffer, const char* fmt, ...)"
+defs["ImGuiTextBuffer_appendf"][1]["call_args"] = "(buffer,fmt,...)"
 defs["ImGuiTextBuffer_appendf"][1]["cimguiname"] = "ImGuiTextBuffer_appendf"
 defs["ImGuiTextBuffer_appendf"][1]["defaults"] = {}
 defs["ImGuiTextBuffer_appendf"][1]["funcname"] = "appendf"
@@ -8246,9 +8246,9 @@ defs["ImGuiTextBuffer_appendf"][1]["location"] = "imgui:2709"
 defs["ImGuiTextBuffer_appendf"][1]["manual"] = true
 defs["ImGuiTextBuffer_appendf"][1]["ov_cimguiname"] = "ImGuiTextBuffer_appendf"
 defs["ImGuiTextBuffer_appendf"][1]["ret"] = "void"
-defs["ImGuiTextBuffer_appendf"][1]["signature"] = "(const char*,...)"
+defs["ImGuiTextBuffer_appendf"][1]["signature"] = "(struct ImGuiTextBuffer*, const char*,...)"
 defs["ImGuiTextBuffer_appendf"][1]["stname"] = "ImGuiTextBuffer"
-defs["ImGuiTextBuffer_appendf"]["(const char*,...)"] = defs["ImGuiTextBuffer_appendf"][1]
+defs["ImGuiTextBuffer_appendf"]["(struct ImGuiTextBuffer*, const char*,...)"] = defs["ImGuiTextBuffer_appendf"][1]
 defs["ImGuiTextBuffer_appendfv"] = {}
 defs["ImGuiTextBuffer_appendfv"][1] = {}
 defs["ImGuiTextBuffer_appendfv"][1]["args"] = "(ImGuiTextBuffer* self,const char* fmt,va_list args)"
@@ -24514,7 +24514,7 @@ defs["igLogText"][1]["argsT"][1]["type"] = "const char*"
 defs["igLogText"][1]["argsT"][2] = {}
 defs["igLogText"][1]["argsT"][2]["name"] = "..."
 defs["igLogText"][1]["argsT"][2]["type"] = "..."
-defs["igLogText"][1]["argsoriginal"] = "(const char* fmt,...)"
+defs["igLogText"][1]["argsoriginal"] = "(const char* fmt, ...)"
 defs["igLogText"][1]["call_args"] = "(fmt,...)"
 defs["igLogText"][1]["cimguiname"] = "igLogText"
 defs["igLogText"][1]["defaults"] = {}