diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6268c16..1008e41 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -40,6 +40,7 @@ endif (IMGUI_STATIC)
 target_compile_definitions(cimgui PUBLIC IMGUI_DISABLE_OBSOLETE_FUNCTIONS=1)
 if (WIN32)
     target_compile_definitions(cimgui PUBLIC IMGUI_IMPL_API=extern\t\"C\"\t__declspec\(dllexport\))
+    list(APPEND IMGUI_LIBRARIES imm32)
 else (WIN32)
     target_compile_definitions(cimgui PUBLIC IMGUI_IMPL_API=extern\t\"C\"\t)
 endif (WIN32)
diff --git a/backend_test/main.c b/backend_test/main.c
index 6ad52df..8e5a6d4 100644
--- a/backend_test/main.c
+++ b/backend_test/main.c
@@ -12,11 +12,11 @@
 #include <GL/glu.h>
 
 #ifdef IMGUI_HAS_IMSTR
-#define igBegin SigBegin
-#define igSliderFloat SigSliderFloat
-#define igCheckbox SigCheckbox
-#define igColorEdit3 SigColorEdit3
-#define igButton SigButton
+#define igBegin igBegin_Strv
+#define igSliderFloat igSliderFloat_Strv
+#define igCheckbox igCheckbox_Strv
+#define igColorEdit3 igColorEdit3_Strv
+#define igButton igButton_Strv
 #endif
 
 SDL_Window *window = NULL;
diff --git a/generator/cpp2ffi.lua b/generator/cpp2ffi.lua
index fd3cf77..4be365f 100644
--- a/generator/cpp2ffi.lua
+++ b/generator/cpp2ffi.lua
@@ -503,7 +503,7 @@ local function typetoStr(typ)
     typ = typ:gsub("float","Float")
     typ = typ:gsub("uInt","Uint")
     typ = typ:gsub("ImGui","")
-    typ = typ:gsub("ImStr","STR")
+    --typ = typ:gsub("ImStr","STR")
     typ = typ:gsub("Im","")
     typ = typ:gsub("[<>]","")
     return typ
@@ -792,7 +792,7 @@ local function ADDIMSTR_S(FP)
         --if isIMSTR return generate _S version
 		local isIMSTR = false
 		for i,arg in ipairs(defT.argsT) do
-			if arg.type == "ImStr" then isIMSTR=true;break end
+			if arg.type == "ImStrv" then isIMSTR=true;break end
 		end
         --if defT.ret=="ImVec2" or defT.ret=="ImVec4" or defT.ret=="ImColor" then
 		--if isIMSTR then print(t.cimguiname,defT.ov_cimguiname,defT.argsoriginal,"isIMSTR") end
@@ -806,7 +806,7 @@ local function ADDIMSTR_S(FP)
             --then argsT table
             defT2.argsT = {}
             for k,v in ipairs(defT.argsT) do
-				local typ = v.type == "ImStr" and "const char*" or v.type
+				local typ = v.type == "ImStrv" and "const char*" or v.type
                 table.insert(defT2.argsT,{type=typ,name=v.name})
             end
 			--defaults table
@@ -814,13 +814,13 @@ local function ADDIMSTR_S(FP)
 			for k,v in pairs(defT.defaults) do
 				defT2.defaults[k] = v
             end
-            defT2.args = defT2.args:gsub("ImStr","const char*")
-			--recreate call_args for wrapping into ImStr
+            defT2.args = defT2.args:gsub("ImStrv","const char*")
+			--recreate call_args for wrapping into ImStrv
 			local caar
 			if #defT.argsT > 0 then
 				caar = "("
 				for i,v in ipairs(defT.argsT) do
-					local name = v.name --v.type == "ImStr" and "ImStr("..v.name..")" or v.name --wrap
+					local name = v.name 
 					if v.ret then --function pointer
 						caar = caar .. name .. ","
 					else
@@ -832,9 +832,9 @@ local function ADDIMSTR_S(FP)
 			else
 				caar = "()"
 			end
-			defT2.call_args = caar --:gsub("ImStr%(([^%(%)]+)%)","%1") --unwrap
+			defT2.call_args = caar 
 			------------------
-            defT2.signature = defT.signature:gsub("ImStr","const char*") --.."_S"
+            defT2.signature = defT.signature:gsub("ImStrv","const char*") --.."_S"
             defT2.ov_cimguiname = defT2.ov_cimguiname .. "_Strv"
             defT2.isIMSTR_S = 1
 			-- check there is not an equal version in imgui_stname
diff --git a/test/main.c b/test/main.c
index 468835f..51bd6af 100644
--- a/test/main.c
+++ b/test/main.c
@@ -3,11 +3,11 @@
 #include "../cimgui.h"
 
 #ifdef IMGUI_HAS_IMSTR
-#define igBegin SigBegin
-#define igSliderFloat SigSliderFloat
-#define igCheckbox SigCheckbox
-#define igColorEdit3 SigColorEdit3
-#define igButton SigButton
+#define igBegin igBegin_Strv
+#define igSliderFloat igSliderFloat_Strv
+#define igCheckbox igCheckbox_Strv
+#define igColorEdit3 igColorEdit3_Strv
+#define igButton igButton_Strv
 #endif
 
 int main(void)