diff --git a/ui_api.cpp b/ui_api.cpp
index 6876dc6..ca19278 100644
--- a/ui_api.cpp
+++ b/ui_api.cpp
@@ -1069,9 +1069,9 @@ static int l_DrawString(lua_State* L)
        static const char* alignMap[6] = { "LEFT", "CENTER", "RIGHT", "CENTER_X", "RIGHT_X", NULL };
        static const char* fontMap[4] = { "FIXED", "VAR", "VAR BOLD", NULL };
        const float dpiScale = ui->renderer->VirtualScreenScaleFactor();
-       const float left = (float)lua_tonumber(L, 1) * dpiScale;
-       const float top = (float)lua_tonumber(L, 2) * dpiScale;
-       const int scaledHeight = (int)std::lround((double)lua_tointeger(L, 4) * (double)dpiScale);
+       const float left = lua_tonumber(L, 1) * dpiScale;
+       const float top = lua_tonumber(L, 2) * dpiScale;
+       const int scaledHeight = std::lround(lua_tointeger(L, 4) * dpiScale);
        ui->renderer->DrawString(
                left,
                top,
@@ -1095,9 +1095,9 @@ static int l_DrawStringWidth(lua_State* L)
        ui->LAssert(L, lua_isstring(L, 3), "DrawStringWidth() argument 3: expected string, got %s", luaL_typename(L, 3));
        static const char* fontMap[4] = { "FIXED", "VAR", "VAR BOLD", NULL };
        const float dpiScale = ui->renderer->VirtualScreenScaleFactor();
-       const double logicalHeight = lua_tonumber(L, 1);
-       const int scaledHeight = (int)std::lround(logicalHeight * dpiScale);
-       double const physicalWidth = (double)ui->renderer->DrawStringWidth(
+       const lua_Number logicalHeight = lua_tonumber(L, 1);
+       const int scaledHeight = std::lround(logicalHeight * dpiScale);
+       double const physicalWidth = ui->renderer->DrawStringWidth(
                scaledHeight,
                luaL_checkoption(L, 2, "FIXED", fontMap),
                lua_tostring(L, 3));
@@ -1118,12 +1118,12 @@ static int l_DrawStringCursorIndex(lua_State* L)
        ui->LAssert(L, lua_isnumber(L, 4), "DrawStringCursorIndex() argument 4: expected number, got %s", luaL_typename(L, 4));
        ui->LAssert(L, lua_isnumber(L, 5), "DrawStringCursorIndex() argument 5: expected number, got %s", luaL_typename(L, 5));
        static const char* fontMap[4] = { "FIXED", "VAR", "VAR BOLD", NULL };
-       const double logicalHeight = lua_tonumber(L, 1);
-       const double logicalCursorX = lua_tonumber(L, 4);
-       const double logicalCursorY = lua_tonumber(L, 5);
-       const int scaledHeight = (int)std::lround(logicalHeight * dpiScale);
-       const int scaledCursorX = (int)std::lround(logicalCursorX * dpiScale);
-       const int scaledCursorY = (int)std::lround(logicalCursorY * dpiScale);
+       const lua_Number logicalHeight = lua_tonumber(L, 1);
+       const lua_Number logicalCursorX = lua_tonumber(L, 4);
+       const lua_Number logicalCursorY = lua_tonumber(L, 5);
+       const int scaledHeight = std::lround(logicalHeight * dpiScale);
+       const int scaledCursorX = std::lround(logicalCursorX * dpiScale);
+       const int scaledCursorY = std::lround(logicalCursorY * dpiScale);
        lua_pushinteger(L, ui->renderer->DrawStringCursorIndex(
                scaledHeight,
                luaL_checkoption(L, 2, "FIXED", fontMap),
@@ -1139,7 +1139,7 @@ static int l_SetDPIScaleOverridePercent(lua_State* L)
        int n = lua_gettop(L);
        ui->LAssert(L, n >= 1, "Usage: SetDPIScaleOverridePercent(percent)");
        ui->LAssert(L, lua_isnumber(L, 1), "SetDPIScaleOverridePercent() argument 1: expected number, got %s", luaL_typename(L, 1));
-       int percent = (int)lua_tointeger(L, 1);
+       int percent = lua_tointeger(L, 1);
        ui->renderer->SetDpiScaleOverridePercent(percent);
        return 0;
 }
@@ -1431,8 +1431,8 @@ static int l_GetCursorPos(lua_State* L)
 {
        ui_main_c* ui = GetUIPtr(L);
        const float dpiScale = ui->renderer->VirtualScreenScaleFactor();
-       lua_pushinteger(L, (lua_Integer)std::lround((double)ui->renderer->VirtualMap(ui->cursorX) / (double)dpiScale));
-       lua_pushinteger(L, (lua_Integer)std::lround((double)ui->renderer->VirtualMap(ui->cursorY) / (double)dpiScale));
+       lua_pushinteger(L, std::lround(ui->renderer->VirtualMap(ui->cursorX) / dpiScale));
+       lua_pushinteger(L, std::lround(ui->renderer->VirtualMap(ui->cursorY) / dpiScale));
        return 2;
 }

@@ -1444,8 +1444,8 @@ static int l_SetCursorPos(lua_State* L)
        ui->LAssert(L, n >= 2, "Usage: SetCursorPos(x, y)");
        ui->LAssert(L, lua_isnumber(L, 1), "SetCursorPos() argument 1: expected number, got %s", luaL_typename(L, 1));
        ui->LAssert(L, lua_isnumber(L, 2), "SetCursorPos() argument 2: expected number, got %s", luaL_typename(L, 2));
-       const int scaledX = (int)std::lround((double)lua_tointeger(L, 1) * (double)dpiScale);
-       const int scaledY = (int)std::lround((double)lua_tointeger(L, 2) * (double)dpiScale);
+       const int scaledX = std::lround(lua_tointeger(L, 1) * dpiScale);
+       const int scaledY = std::lround(lua_tointeger(L, 2) * dpiScale);
        int x = ui->renderer->VirtualUnmap(scaledX);
        int y = ui->renderer->VirtualUnmap(scaledY);
        ui->sys->video->SetRelativeCursor(x, y);