Updated ImGui.

3rdparty/dear-imgui/imgui.h

@@ -439,8 +439,8 @@ namespace ImGui
     IMGUI_API bool          DragInt3(const char* label, int v[3], float v_speed = 1.0f, int v_min = 0, int v_max = 0, const char* format = "%d");
     IMGUI_API bool          DragInt4(const char* label, int v[4], float v_speed = 1.0f, int v_min = 0, int v_max = 0, const char* format = "%d");
     IMGUI_API bool          DragIntRange2(const char* label, int* v_current_min, int* v_current_max, float v_speed = 1.0f, int v_min = 0, int v_max = 0, const char* format = "%d", const char* format_max = NULL);
-    IMGUI_API bool          DragScalar(const char* label, ImGuiDataType data_type, void* v, float v_speed, const void* v_min = NULL, const void* v_max = NULL, const char* format = NULL, float power = 1.0f);
-    IMGUI_API bool          DragScalarN(const char* label, ImGuiDataType data_type, void* v, int components, float v_speed, const void* v_min = NULL, const void* v_max = NULL, const char* format = NULL, float power = 1.0f);
+    IMGUI_API bool          DragScalar(const char* label, ImGuiDataType data_type, void* p_data, float v_speed, const void* p_min = NULL, const void* p_max = NULL, const char* format = NULL, float power = 1.0f);
+    IMGUI_API bool          DragScalarN(const char* label, ImGuiDataType data_type, void* p_data, int components, float v_speed, const void* p_min = NULL, const void* p_max = NULL, const char* format = NULL, float power = 1.0f);
 
     // Widgets: Sliders
     // - CTRL+Click on any slider to turn them into an input box. Manually input values aren't clamped and can go off-bounds.
@@ -454,11 +454,11 @@ namespace ImGui
     IMGUI_API bool          SliderInt2(const char* label, int v[2], int v_min, int v_max, const char* format = "%d");
     IMGUI_API bool          SliderInt3(const char* label, int v[3], int v_min, int v_max, const char* format = "%d");
     IMGUI_API bool          SliderInt4(const char* label, int v[4], int v_min, int v_max, const char* format = "%d");
-    IMGUI_API bool          SliderScalar(const char* label, ImGuiDataType data_type, void* v, const void* v_min, const void* v_max, const char* format = NULL, float power = 1.0f);
-    IMGUI_API bool          SliderScalarN(const char* label, ImGuiDataType data_type, void* v, int components, const void* v_min, const void* v_max, const char* format = NULL, float power = 1.0f);
+    IMGUI_API bool          SliderScalar(const char* label, ImGuiDataType data_type, void* p_data, const void* p_min, const void* p_max, const char* format = NULL, float power = 1.0f);
+    IMGUI_API bool          SliderScalarN(const char* label, ImGuiDataType data_type, void* p_data, int components, const void* p_min, const void* p_max, const char* format = NULL, float power = 1.0f);
     IMGUI_API bool          VSliderFloat(const char* label, const ImVec2& size, float* v, float v_min, float v_max, const char* format = "%.3f", float power = 1.0f);
     IMGUI_API bool          VSliderInt(const char* label, const ImVec2& size, int* v, int v_min, int v_max, const char* format = "%d");
-    IMGUI_API bool          VSliderScalar(const char* label, const ImVec2& size, ImGuiDataType data_type, void* v, const void* v_min, const void* v_max, const char* format = NULL, float power = 1.0f);
+    IMGUI_API bool          VSliderScalar(const char* label, const ImVec2& size, ImGuiDataType data_type, void* p_data, const void* p_min, const void* p_max, const char* format = NULL, float power = 1.0f);
 
     // Widgets: Input with Keyboard
     // - If you want to use InputText() with a dynamic string type such as std::string or your own, see misc/cpp/imgui_stdlib.h
@@ -475,8 +475,8 @@ namespace ImGui
     IMGUI_API bool          InputInt3(const char* label, int v[3], ImGuiInputTextFlags flags = 0);
     IMGUI_API bool          InputInt4(const char* label, int v[4], ImGuiInputTextFlags flags = 0);
     IMGUI_API bool          InputDouble(const char* label, double* v, double step = 0.0, double step_fast = 0.0, const char* format = "%.6f", ImGuiInputTextFlags flags = 0);
-    IMGUI_API bool          InputScalar(const char* label, ImGuiDataType data_type, void* v, const void* step = NULL, const void* step_fast = NULL, const char* format = NULL, ImGuiInputTextFlags flags = 0);
-    IMGUI_API bool          InputScalarN(const char* label, ImGuiDataType data_type, void* v, int components, const void* step = NULL, const void* step_fast = NULL, const char* format = NULL, ImGuiInputTextFlags flags = 0);
+    IMGUI_API bool          InputScalar(const char* label, ImGuiDataType data_type, void* p_data, const void* p_step = NULL, const void* p_step_fast = NULL, const char* format = NULL, ImGuiInputTextFlags flags = 0);
+    IMGUI_API bool          InputScalarN(const char* label, ImGuiDataType data_type, void* p_data, int components, const void* p_step = NULL, const void* p_step_fast = NULL, const char* format = NULL, ImGuiInputTextFlags flags = 0);
 
     // Widgets: Color Editor/Picker (tip: the ColorEdit* functions have a little colored preview square that can be left-clicked to open a picker, and right-clicked to open an option menu.)
     // - Note that in C++ a 'float v[X]' function argument is the _same_ as 'float* v', the array syntax is just a way to document the number of elements that are expected to be accessible.

3rdparty/dear-imgui/imgui_internal.h

@@ -1666,8 +1666,8 @@ namespace ImGui
 
     // Widgets low-level behaviors
     IMGUI_API bool          ButtonBehavior(const ImRect& bb, ImGuiID id, bool* out_hovered, bool* out_held, ImGuiButtonFlags flags = 0);
-    IMGUI_API bool          DragBehavior(ImGuiID id, ImGuiDataType data_type, void* v, float v_speed, const void* v_min, const void* v_max, const char* format, float power, ImGuiDragFlags flags);
-    IMGUI_API bool          SliderBehavior(const ImRect& bb, ImGuiID id, ImGuiDataType data_type, void* v, const void* v_min, const void* v_max, const char* format, float power, ImGuiSliderFlags flags, ImRect* out_grab_bb);
+    IMGUI_API bool          DragBehavior(ImGuiID id, ImGuiDataType data_type, void* p_v, float v_speed, const void* p_min, const void* p_max, const char* format, float power, ImGuiDragFlags flags);
+    IMGUI_API bool          SliderBehavior(const ImRect& bb, ImGuiID id, ImGuiDataType data_type, void* p_v, const void* p_min, const void* p_max, const char* format, float power, ImGuiSliderFlags flags, ImRect* out_grab_bb);
     IMGUI_API bool          SplitterBehavior(const ImRect& bb, ImGuiID id, ImGuiAxis axis, float* size1, float* size2, float min_size1, float min_size2, float hover_extend = 0.0f, float hover_visibility_delay = 0.0f);
     IMGUI_API bool          TreeNodeBehavior(ImGuiID id, ImGuiTreeNodeFlags flags, const char* label, const char* label_end = NULL);
     IMGUI_API bool          TreeNodeBehaviorIsOpen(ImGuiID id, ImGuiTreeNodeFlags flags = 0);                     // Consume previous SetNextItemOpen() data, if any. May return true when logging
@@ -1683,13 +1683,13 @@ namespace ImGui
 
     // Data type helpers
     IMGUI_API const ImGuiDataTypeInfo*  DataTypeGetInfo(ImGuiDataType data_type);
-    IMGUI_API int           DataTypeFormatString(char* buf, int buf_size, ImGuiDataType data_type, const void* data_ptr, const char* format);
+    IMGUI_API int           DataTypeFormatString(char* buf, int buf_size, ImGuiDataType data_type, const void* p_data, const char* format);
     IMGUI_API void          DataTypeApplyOp(ImGuiDataType data_type, int op, void* output, void* arg_1, const void* arg_2);
-    IMGUI_API bool          DataTypeApplyOpFromText(const char* buf, const char* initial_value_buf, ImGuiDataType data_type, void* data_ptr, const char* format);
+    IMGUI_API bool          DataTypeApplyOpFromText(const char* buf, const char* initial_value_buf, ImGuiDataType data_type, void* p_data, const char* format);
 
     // InputText
     IMGUI_API bool          InputTextEx(const char* label, const char* hint, char* buf, int buf_size, const ImVec2& size_arg, ImGuiInputTextFlags flags, ImGuiInputTextCallback callback = NULL, void* user_data = NULL);
-    IMGUI_API bool          TempInputTextScalar(const ImRect& bb, ImGuiID id, const char* label, ImGuiDataType data_type, void* data_ptr, const char* format);
+    IMGUI_API bool          TempInputTextScalar(const ImRect& bb, ImGuiID id, const char* label, ImGuiDataType data_type, void* p_data, const char* format);
     inline bool             TempInputTextIsActive(ImGuiID id) { ImGuiContext& g = *GImGui; return (g.ActiveId == id && g.TempInputTextId == id); }
 
     // Color

3rdparty/dear-imgui/imgui_widgets.cpp

@@ -1680,25 +1680,25 @@ const ImGuiDataTypeInfo* ImGui::DataTypeGetInfo(ImGuiDataType data_type)
     return &GDataTypeInfo[data_type];
 }
 
-int ImGui::DataTypeFormatString(char* buf, int buf_size, ImGuiDataType data_type, const void* data_ptr, const char* format)
+int ImGui::DataTypeFormatString(char* buf, int buf_size, ImGuiDataType data_type, const void* p_data, const char* format)
 {
     // Signedness doesn't matter when pushing integer arguments
     if (data_type == ImGuiDataType_S32 || data_type == ImGuiDataType_U32)
-        return ImFormatString(buf, buf_size, format, *(const ImU32*)data_ptr);
+        return ImFormatString(buf, buf_size, format, *(const ImU32*)p_data);
     if (data_type == ImGuiDataType_S64 || data_type == ImGuiDataType_U64)
-        return ImFormatString(buf, buf_size, format, *(const ImU64*)data_ptr);
+        return ImFormatString(buf, buf_size, format, *(const ImU64*)p_data);
     if (data_type == ImGuiDataType_Float)
-        return ImFormatString(buf, buf_size, format, *(const float*)data_ptr);
+        return ImFormatString(buf, buf_size, format, *(const float*)p_data);
     if (data_type == ImGuiDataType_Double)
-        return ImFormatString(buf, buf_size, format, *(const double*)data_ptr);
+        return ImFormatString(buf, buf_size, format, *(const double*)p_data);
     if (data_type == ImGuiDataType_S8)
-        return ImFormatString(buf, buf_size, format, *(const ImS8*)data_ptr);
+        return ImFormatString(buf, buf_size, format, *(const ImS8*)p_data);
     if (data_type == ImGuiDataType_U8)
-        return ImFormatString(buf, buf_size, format, *(const ImU8*)data_ptr);
+        return ImFormatString(buf, buf_size, format, *(const ImU8*)p_data);
     if (data_type == ImGuiDataType_S16)
-        return ImFormatString(buf, buf_size, format, *(const ImS16*)data_ptr);
+        return ImFormatString(buf, buf_size, format, *(const ImS16*)p_data);
     if (data_type == ImGuiDataType_U16)
-        return ImFormatString(buf, buf_size, format, *(const ImU16*)data_ptr);
+        return ImFormatString(buf, buf_size, format, *(const ImU16*)p_data);
     IM_ASSERT(0);
     return 0;
 }
@@ -1755,7 +1755,7 @@ void ImGui::DataTypeApplyOp(ImGuiDataType data_type, int op, void* output, void*
 
 // User can input math operators (e.g. +100) to edit a numerical values.
 // NB: This is _not_ a full expression evaluator. We should probably add one and replace this dumb mess..
-bool ImGui::DataTypeApplyOpFromText(const char* buf, const char* initial_value_buf, ImGuiDataType data_type, void* data_ptr, const char* format)
+bool ImGui::DataTypeApplyOpFromText(const char* buf, const char* initial_value_buf, ImGuiDataType data_type, void* p_data, const char* format)
 {
     while (ImCharIsBlankA(*buf))
         buf++;
@@ -1781,7 +1781,7 @@ bool ImGui::DataTypeApplyOpFromText(const char* buf, const char* initial_value_b
     int data_backup[2];
     const ImGuiDataTypeInfo* type_info = ImGui::DataTypeGetInfo(data_type);
     IM_ASSERT(type_info->Size <= sizeof(data_backup));
-    memcpy(data_backup, data_ptr, type_info->Size);
+    memcpy(data_backup, p_data, type_info->Size);
 
     if (format == NULL)
         format = type_info->ScanFmt;
@@ -1790,7 +1790,7 @@ bool ImGui::DataTypeApplyOpFromText(const char* buf, const char* initial_value_b
     int arg1i = 0;
     if (data_type == ImGuiDataType_S32)
     {
-        int* v = (int*)data_ptr;
+        int* v = (int*)p_data;
         int arg0i = *v;
         float arg1f = 0.0f;
         if (op && sscanf(initial_value_buf, format, &arg0i) < 1)
@@ -1805,7 +1805,7 @@ bool ImGui::DataTypeApplyOpFromText(const char* buf, const char* initial_value_b
     {
         // For floats we have to ignore format with precision (e.g. "%.2f") because sscanf doesn't take them in
         format = "%f";
-        float* v = (float*)data_ptr;
+        float* v = (float*)p_data;
         float arg0f = *v, arg1f = 0.0f;
         if (op && sscanf(initial_value_buf, format, &arg0f) < 1)
             return false;
@@ -1819,7 +1819,7 @@ bool ImGui::DataTypeApplyOpFromText(const char* buf, const char* initial_value_b
     else if (data_type == ImGuiDataType_Double)
     {
         format = "%lf"; // scanf differentiate float/double unlike printf which forces everything to double because of ellipsis
-        double* v = (double*)data_ptr;
+        double* v = (double*)p_data;
         double arg0f = *v, arg1f = 0.0;
         if (op && sscanf(initial_value_buf, format, &arg0f) < 1)
             return false;
@@ -1834,7 +1834,7 @@ bool ImGui::DataTypeApplyOpFromText(const char* buf, const char* initial_value_b
     {
         // All other types assign constant
         // We don't bother handling support for legacy operators since they are a little too crappy. Instead we will later implement a proper expression evaluator in the future.
-        sscanf(buf, format, data_ptr);
+        sscanf(buf, format, p_data);
     }
     else
     {
@@ -1842,18 +1842,18 @@ bool ImGui::DataTypeApplyOpFromText(const char* buf, const char* initial_value_b
         int v32;
         sscanf(buf, format, &v32);
         if (data_type == ImGuiDataType_S8)
-            *(ImS8*)data_ptr = (ImS8)ImClamp(v32, (int)IM_S8_MIN, (int)IM_S8_MAX);
+            *(ImS8*)p_data = (ImS8)ImClamp(v32, (int)IM_S8_MIN, (int)IM_S8_MAX);
         else if (data_type == ImGuiDataType_U8)
-            *(ImU8*)data_ptr = (ImU8)ImClamp(v32, (int)IM_U8_MIN, (int)IM_U8_MAX);
+            *(ImU8*)p_data = (ImU8)ImClamp(v32, (int)IM_U8_MIN, (int)IM_U8_MAX);
         else if (data_type == ImGuiDataType_S16)
-            *(ImS16*)data_ptr = (ImS16)ImClamp(v32, (int)IM_S16_MIN, (int)IM_S16_MAX);
+            *(ImS16*)p_data = (ImS16)ImClamp(v32, (int)IM_S16_MIN, (int)IM_S16_MAX);
         else if (data_type == ImGuiDataType_U16)
-            *(ImU16*)data_ptr = (ImU16)ImClamp(v32, (int)IM_U16_MIN, (int)IM_U16_MAX);
+            *(ImU16*)p_data = (ImU16)ImClamp(v32, (int)IM_U16_MIN, (int)IM_U16_MAX);
         else
             IM_ASSERT(0);
     }
 
-    return memcmp(data_backup, data_ptr, type_info->Size) != 0;
+    return memcmp(data_backup, p_data, type_info->Size) != 0;
 }
 
 static float GetMinimumStepAtDecimalPrecision(int decimal_precision)
@@ -2023,7 +2023,7 @@ bool ImGui::DragBehaviorT(ImGuiDataType data_type, TYPE* v, float v_speed, const
     return true;
 }
 
-bool ImGui::DragBehavior(ImGuiID id, ImGuiDataType data_type, void* v, float v_speed, const void* v_min, const void* v_max, const char* format, float power, ImGuiDragFlags flags)
+bool ImGui::DragBehavior(ImGuiID id, ImGuiDataType data_type, void* p_v, float v_speed, const void* p_min, const void* p_max, const char* format, float power, ImGuiDragFlags flags)
 {
     ImGuiContext& g = *GImGui;
     if (g.ActiveId == id)
@@ -2038,30 +2038,32 @@ bool ImGui::DragBehavior(ImGuiID id, ImGuiDataType data_type, void* v, float v_s
 
     switch (data_type)
     {
-    case ImGuiDataType_S8:     { ImS32 v32 = (ImS32)*(ImS8*)v;  bool r = DragBehaviorT<ImS32, ImS32, float >(ImGuiDataType_S32, &v32, v_speed, v_min ? *(const ImS8*) v_min : IM_S8_MIN,  v_max ? *(const ImS8*)v_max  : IM_S8_MAX,  format, power, flags); if (r) *(ImS8*)v = (ImS8)v32; return r; }
-    case ImGuiDataType_U8:     { ImU32 v32 = (ImU32)*(ImU8*)v;  bool r = DragBehaviorT<ImU32, ImS32, float >(ImGuiDataType_U32, &v32, v_speed, v_min ? *(const ImU8*) v_min : IM_U8_MIN,  v_max ? *(const ImU8*)v_max  : IM_U8_MAX,  format, power, flags); if (r) *(ImU8*)v = (ImU8)v32; return r; }
-    case ImGuiDataType_S16:    { ImS32 v32 = (ImS32)*(ImS16*)v; bool r = DragBehaviorT<ImS32, ImS32, float >(ImGuiDataType_S32, &v32, v_speed, v_min ? *(const ImS16*)v_min : IM_S16_MIN, v_max ? *(const ImS16*)v_max : IM_S16_MAX, format, power, flags); if (r) *(ImS16*)v = (ImS16)v32; return r; }
-    case ImGuiDataType_U16:    { ImU32 v32 = (ImU32)*(ImU16*)v; bool r = DragBehaviorT<ImU32, ImS32, float >(ImGuiDataType_U32, &v32, v_speed, v_min ? *(const ImU16*)v_min : IM_U16_MIN, v_max ? *(const ImU16*)v_max : IM_U16_MAX, format, power, flags); if (r) *(ImU16*)v = (ImU16)v32; return r; }
-    case ImGuiDataType_S32:    return DragBehaviorT<ImS32, ImS32, float >(data_type, (ImS32*)v,  v_speed, v_min ? *(const ImS32* )v_min : IM_S32_MIN, v_max ? *(const ImS32* )v_max : IM_S32_MAX, format, power, flags);
-    case ImGuiDataType_U32:    return DragBehaviorT<ImU32, ImS32, float >(data_type, (ImU32*)v,  v_speed, v_min ? *(const ImU32* )v_min : IM_U32_MIN, v_max ? *(const ImU32* )v_max : IM_U32_MAX, format, power, flags);
-    case ImGuiDataType_S64:    return DragBehaviorT<ImS64, ImS64, double>(data_type, (ImS64*)v,  v_speed, v_min ? *(const ImS64* )v_min : IM_S64_MIN, v_max ? *(const ImS64* )v_max : IM_S64_MAX, format, power, flags);
-    case ImGuiDataType_U64:    return DragBehaviorT<ImU64, ImS64, double>(data_type, (ImU64*)v,  v_speed, v_min ? *(const ImU64* )v_min : IM_U64_MIN, v_max ? *(const ImU64* )v_max : IM_U64_MAX, format, power, flags);
-    case ImGuiDataType_Float:  return DragBehaviorT<float, float, float >(data_type, (float*)v,  v_speed, v_min ? *(const float* )v_min : -FLT_MAX,   v_max ? *(const float* )v_max : FLT_MAX,    format, power, flags);
-    case ImGuiDataType_Double: return DragBehaviorT<double,double,double>(data_type, (double*)v, v_speed, v_min ? *(const double*)v_min : -DBL_MAX,   v_max ? *(const double*)v_max : DBL_MAX,    format, power, flags);
+    case ImGuiDataType_S8:     { ImS32 v32 = (ImS32)*(ImS8*)p_v;  bool r = DragBehaviorT<ImS32, ImS32, float>(ImGuiDataType_S32, &v32, v_speed, p_min ? *(const ImS8*) p_min : IM_S8_MIN,  p_max ? *(const ImS8*)p_max  : IM_S8_MAX,  format, power, flags); if (r) *(ImS8*)p_v = (ImS8)v32; return r; }
+    case ImGuiDataType_U8:     { ImU32 v32 = (ImU32)*(ImU8*)p_v;  bool r = DragBehaviorT<ImU32, ImS32, float>(ImGuiDataType_U32, &v32, v_speed, p_min ? *(const ImU8*) p_min : IM_U8_MIN,  p_max ? *(const ImU8*)p_max  : IM_U8_MAX,  format, power, flags); if (r) *(ImU8*)p_v = (ImU8)v32; return r; }
+    case ImGuiDataType_S16:    { ImS32 v32 = (ImS32)*(ImS16*)p_v; bool r = DragBehaviorT<ImS32, ImS32, float>(ImGuiDataType_S32, &v32, v_speed, p_min ? *(const ImS16*)p_min : IM_S16_MIN, p_max ? *(const ImS16*)p_max : IM_S16_MAX, format, power, flags); if (r) *(ImS16*)p_v = (ImS16)v32; return r; }
+    case ImGuiDataType_U16:    { ImU32 v32 = (ImU32)*(ImU16*)p_v; bool r = DragBehaviorT<ImU32, ImS32, float>(ImGuiDataType_U32, &v32, v_speed, p_min ? *(const ImU16*)p_min : IM_U16_MIN, p_max ? *(const ImU16*)p_max : IM_U16_MAX, format, power, flags); if (r) *(ImU16*)p_v = (ImU16)v32; return r; }
+    case ImGuiDataType_S32:    return DragBehaviorT<ImS32, ImS32, float >(data_type, (ImS32*)p_v,  v_speed, p_min ? *(const ImS32* )p_min : IM_S32_MIN, p_max ? *(const ImS32* )p_max : IM_S32_MAX, format, power, flags);
+    case ImGuiDataType_U32:    return DragBehaviorT<ImU32, ImS32, float >(data_type, (ImU32*)p_v,  v_speed, p_min ? *(const ImU32* )p_min : IM_U32_MIN, p_max ? *(const ImU32* )p_max : IM_U32_MAX, format, power, flags);
+    case ImGuiDataType_S64:    return DragBehaviorT<ImS64, ImS64, double>(data_type, (ImS64*)p_v,  v_speed, p_min ? *(const ImS64* )p_min : IM_S64_MIN, p_max ? *(const ImS64* )p_max : IM_S64_MAX, format, power, flags);
+    case ImGuiDataType_U64:    return DragBehaviorT<ImU64, ImS64, double>(data_type, (ImU64*)p_v,  v_speed, p_min ? *(const ImU64* )p_min : IM_U64_MIN, p_max ? *(const ImU64* )p_max : IM_U64_MAX, format, power, flags);
+    case ImGuiDataType_Float:  return DragBehaviorT<float, float, float >(data_type, (float*)p_v,  v_speed, p_min ? *(const float* )p_min : -FLT_MAX,   p_max ? *(const float* )p_max : FLT_MAX,    format, power, flags);
+    case ImGuiDataType_Double: return DragBehaviorT<double,double,double>(data_type, (double*)p_v, v_speed, p_min ? *(const double*)p_min : -DBL_MAX,   p_max ? *(const double*)p_max : DBL_MAX,    format, power, flags);
     case ImGuiDataType_COUNT:  break;
     }
     IM_ASSERT(0);
     return false;
 }
 
-bool ImGui::DragScalar(const char* label, ImGuiDataType data_type, void* v, float v_speed, const void* v_min, const void* v_max, const char* format, float power)
+// Note: p_data, p_min and p_max are _pointers_ to a memory address holding the data. For a Drag widget, p_min and p_max are optional.
+// Read code of e.g. SliderFloat(), SliderInt() etc. or examples in 'Demo->Widgets->Data Types' to understand how to use this function directly.
+bool ImGui::DragScalar(const char* label, ImGuiDataType data_type, void* p_data, float v_speed, const void* p_min, const void* p_max, const char* format, float power)
 {
     ImGuiWindow* window = GetCurrentWindow();
     if (window->SkipItems)
         return false;
 
     if (power != 1.0f)
-        IM_ASSERT(v_min != NULL && v_max != NULL); // When using a power curve the drag needs to have known bounds
+        IM_ASSERT(p_min != NULL && p_max != NULL); // When using a power curve the drag needs to have known bounds
 
     ImGuiContext& g = *GImGui;
     const ImGuiStyle& style = g.Style;
@@ -2104,7 +2106,7 @@ bool ImGui::DragScalar(const char* label, ImGuiDataType data_type, void* v, floa
         }
     }
     if (temp_input_is_active || temp_input_start)
-        return TempInputTextScalar(frame_bb, id, label, data_type, v, format);
+        return TempInputTextScalar(frame_bb, id, label, data_type, p_data, format);
 
     // Draw frame
     const ImU32 frame_col = GetColorU32(g.ActiveId == id ? ImGuiCol_FrameBgActive : g.HoveredId == id ? ImGuiCol_FrameBgHovered : ImGuiCol_FrameBg);
@@ -2112,13 +2114,13 @@ bool ImGui::DragScalar(const char* label, ImGuiDataType data_type, void* v, floa
     RenderFrame(frame_bb.Min, frame_bb.Max, frame_col, true, style.FrameRounding);
 
     // Drag behavior
-    const bool value_changed = DragBehavior(id, data_type, v, v_speed, v_min, v_max, format, power, ImGuiDragFlags_None);
+    const bool value_changed = DragBehavior(id, data_type, p_data, v_speed, p_min, p_max, format, power, ImGuiDragFlags_None);
     if (value_changed)
         MarkItemEdited(id);
 
     // Display value using user-provided display format so user can add prefix/suffix/decorations to the value.
     char value_buf[64];
-    const char* value_buf_end = value_buf + DataTypeFormatString(value_buf, IM_ARRAYSIZE(value_buf), data_type, v, format);
+    const char* value_buf_end = value_buf + DataTypeFormatString(value_buf, IM_ARRAYSIZE(value_buf), data_type, p_data, format);
     RenderTextClipped(frame_bb.Min, frame_bb.Max, value_buf, value_buf_end, NULL, ImVec2(0.5f, 0.5f));
 
     if (label_size.x > 0.0f)
@@ -2128,7 +2130,7 @@ bool ImGui::DragScalar(const char* label, ImGuiDataType data_type, void* v, floa
     return value_changed;
 }
 
-bool ImGui::DragScalarN(const char* label, ImGuiDataType data_type, void* v, int components, float v_speed, const void* v_min, const void* v_max, const char* format, float power)
+bool ImGui::DragScalarN(const char* label, ImGuiDataType data_type, void* p_data, int components, float v_speed, const void* p_min, const void* p_max, const char* format, float power)
 {
     ImGuiWindow* window = GetCurrentWindow();
     if (window->SkipItems)
@@ -2145,10 +2147,10 @@ bool ImGui::DragScalarN(const char* label, ImGuiDataType data_type, void* v, int
         PushID(i);
         if (i > 0)
             SameLine(0, g.Style.ItemInnerSpacing.x);
-        value_changed |= DragScalar("", data_type, v, v_speed, v_min, v_max, format, power);
+        value_changed |= DragScalar("", data_type, p_data, v_speed, p_min, p_max, format, power);
         PopID();
         PopItemWidth();
-        v = (void*)((char*)v + type_size);
+        p_data = (void*)((char*)p_data + type_size);
     }
     PopID();
 
@@ -2489,39 +2491,41 @@ bool ImGui::SliderBehaviorT(const ImRect& bb, ImGuiID id, ImGuiDataType data_typ
 // For 32-bits and larger types, slider bounds are limited to half the natural type range.
 // So e.g. an integer Slider between INT_MAX-10 and INT_MAX will fail, but an integer Slider between INT_MAX/2-10 and INT_MAX/2 will be ok.
 // It would be possible to lift that limitation with some work but it doesn't seem to be worth it for sliders.
-bool ImGui::SliderBehavior(const ImRect& bb, ImGuiID id, ImGuiDataType data_type, void* v, const void* v_min, const void* v_max, const char* format, float power, ImGuiSliderFlags flags, ImRect* out_grab_bb)
+bool ImGui::SliderBehavior(const ImRect& bb, ImGuiID id, ImGuiDataType data_type, void* p_v, const void* p_min, const void* p_max, const char* format, float power, ImGuiSliderFlags flags, ImRect* out_grab_bb)
 {
     switch (data_type)
     {
-    case ImGuiDataType_S8:  { ImS32 v32 = (ImS32)*(ImS8*)v;  bool r = SliderBehaviorT<ImS32, ImS32, float >(bb, id, ImGuiDataType_S32, &v32, *(const ImS8*)v_min,  *(const ImS8*)v_max,  format, power, flags, out_grab_bb); if (r) *(ImS8*)v  = (ImS8)v32;  return r; }
-    case ImGuiDataType_U8:  { ImU32 v32 = (ImU32)*(ImU8*)v;  bool r = SliderBehaviorT<ImU32, ImS32, float >(bb, id, ImGuiDataType_U32, &v32, *(const ImU8*)v_min,  *(const ImU8*)v_max,  format, power, flags, out_grab_bb); if (r) *(ImU8*)v  = (ImU8)v32;  return r; }
-    case ImGuiDataType_S16: { ImS32 v32 = (ImS32)*(ImS16*)v; bool r = SliderBehaviorT<ImS32, ImS32, float >(bb, id, ImGuiDataType_S32, &v32, *(const ImS16*)v_min, *(const ImS16*)v_max, format, power, flags, out_grab_bb); if (r) *(ImS16*)v = (ImS16)v32; return r; }
-    case ImGuiDataType_U16: { ImU32 v32 = (ImU32)*(ImU16*)v; bool r = SliderBehaviorT<ImU32, ImS32, float >(bb, id, ImGuiDataType_U32, &v32, *(const ImU16*)v_min, *(const ImU16*)v_max, format, power, flags, out_grab_bb); if (r) *(ImU16*)v = (ImU16)v32; return r; }
+    case ImGuiDataType_S8:  { ImS32 v32 = (ImS32)*(ImS8*)p_v;  bool r = SliderBehaviorT<ImS32, ImS32, float>(bb, id, ImGuiDataType_S32, &v32, *(const ImS8*)p_min,  *(const ImS8*)p_max,  format, power, flags, out_grab_bb); if (r) *(ImS8*)p_v  = (ImS8)v32;  return r; }
+    case ImGuiDataType_U8:  { ImU32 v32 = (ImU32)*(ImU8*)p_v;  bool r = SliderBehaviorT<ImU32, ImS32, float>(bb, id, ImGuiDataType_U32, &v32, *(const ImU8*)p_min,  *(const ImU8*)p_max,  format, power, flags, out_grab_bb); if (r) *(ImU8*)p_v  = (ImU8)v32;  return r; }
+    case ImGuiDataType_S16: { ImS32 v32 = (ImS32)*(ImS16*)p_v; bool r = SliderBehaviorT<ImS32, ImS32, float>(bb, id, ImGuiDataType_S32, &v32, *(const ImS16*)p_min, *(const ImS16*)p_max, format, power, flags, out_grab_bb); if (r) *(ImS16*)p_v = (ImS16)v32; return r; }
+    case ImGuiDataType_U16: { ImU32 v32 = (ImU32)*(ImU16*)p_v; bool r = SliderBehaviorT<ImU32, ImS32, float>(bb, id, ImGuiDataType_U32, &v32, *(const ImU16*)p_min, *(const ImU16*)p_max, format, power, flags, out_grab_bb); if (r) *(ImU16*)p_v = (ImU16)v32; return r; }
     case ImGuiDataType_S32:
-        IM_ASSERT(*(const ImS32*)v_min >= IM_S32_MIN/2 && *(const ImS32*)v_max <= IM_S32_MAX/2);
-        return SliderBehaviorT<ImS32, ImS32, float >(bb, id, data_type, (ImS32*)v,  *(const ImS32*)v_min,  *(const ImS32*)v_max,  format, power, flags, out_grab_bb);
+        IM_ASSERT(*(const ImS32*)p_min >= IM_S32_MIN/2 && *(const ImS32*)p_max <= IM_S32_MAX/2);
+        return SliderBehaviorT<ImS32, ImS32, float >(bb, id, data_type, (ImS32*)p_v,  *(const ImS32*)p_min,  *(const ImS32*)p_max,  format, power, flags, out_grab_bb);
     case ImGuiDataType_U32:
-        IM_ASSERT(*(const ImU32*)v_max <= IM_U32_MAX/2);
-        return SliderBehaviorT<ImU32, ImS32, float >(bb, id, data_type, (ImU32*)v,  *(const ImU32*)v_min,  *(const ImU32*)v_max,  format, power, flags, out_grab_bb);
+        IM_ASSERT(*(const ImU32*)p_max <= IM_U32_MAX/2);
+        return SliderBehaviorT<ImU32, ImS32, float >(bb, id, data_type, (ImU32*)p_v,  *(const ImU32*)p_min,  *(const ImU32*)p_max,  format, power, flags, out_grab_bb);
     case ImGuiDataType_S64:
-        IM_ASSERT(*(const ImS64*)v_min >= IM_S64_MIN/2 && *(const ImS64*)v_max <= IM_S64_MAX/2);
-        return SliderBehaviorT<ImS64, ImS64, double>(bb, id, data_type, (ImS64*)v,  *(const ImS64*)v_min,  *(const ImS64*)v_max,  format, power, flags, out_grab_bb);
+        IM_ASSERT(*(const ImS64*)p_min >= IM_S64_MIN/2 && *(const ImS64*)p_max <= IM_S64_MAX/2);
+        return SliderBehaviorT<ImS64, ImS64, double>(bb, id, data_type, (ImS64*)p_v,  *(const ImS64*)p_min,  *(const ImS64*)p_max,  format, power, flags, out_grab_bb);
     case ImGuiDataType_U64:
-        IM_ASSERT(*(const ImU64*)v_max <= IM_U64_MAX/2);
-        return SliderBehaviorT<ImU64, ImS64, double>(bb, id, data_type, (ImU64*)v,  *(const ImU64*)v_min,  *(const ImU64*)v_max,  format, power, flags, out_grab_bb);
+        IM_ASSERT(*(const ImU64*)p_max <= IM_U64_MAX/2);
+        return SliderBehaviorT<ImU64, ImS64, double>(bb, id, data_type, (ImU64*)p_v,  *(const ImU64*)p_min,  *(const ImU64*)p_max,  format, power, flags, out_grab_bb);
     case ImGuiDataType_Float:
-        IM_ASSERT(*(const float*)v_min >= -FLT_MAX/2.0f && *(const float*)v_max <= FLT_MAX/2.0f);
-        return SliderBehaviorT<float, float, float >(bb, id, data_type, (float*)v,  *(const float*)v_min,  *(const float*)v_max,  format, power, flags, out_grab_bb);
+        IM_ASSERT(*(const float*)p_min >= -FLT_MAX/2.0f && *(const float*)p_max <= FLT_MAX/2.0f);
+        return SliderBehaviorT<float, float, float >(bb, id, data_type, (float*)p_v,  *(const float*)p_min,  *(const float*)p_max,  format, power, flags, out_grab_bb);
     case ImGuiDataType_Double:
-        IM_ASSERT(*(const double*)v_min >= -DBL_MAX/2.0f && *(const double*)v_max <= DBL_MAX/2.0f);
-        return SliderBehaviorT<double,double,double>(bb, id, data_type, (double*)v, *(const double*)v_min, *(const double*)v_max, format, power, flags, out_grab_bb);
+        IM_ASSERT(*(const double*)p_min >= -DBL_MAX/2.0f && *(const double*)p_max <= DBL_MAX/2.0f);
+        return SliderBehaviorT<double,double,double>(bb, id, data_type, (double*)p_v, *(const double*)p_min, *(const double*)p_max, format, power, flags, out_grab_bb);
     case ImGuiDataType_COUNT: break;
     }
     IM_ASSERT(0);
     return false;
 }
 
-bool ImGui::SliderScalar(const char* label, ImGuiDataType data_type, void* v, const void* v_min, const void* v_max, const char* format, float power)
+// Note: p_data, p_min and p_max are _pointers_ to a memory address holding the data. For a slider, they are all required.
+// Read code of e.g. SliderFloat(), SliderInt() etc. or examples in 'Demo->Widgets->Data Types' to understand how to use this function directly.
+bool ImGui::SliderScalar(const char* label, ImGuiDataType data_type, void* p_data, const void* p_min, const void* p_max, const char* format, float power)
 {
     ImGuiWindow* window = GetCurrentWindow();
     if (window->SkipItems)
@@ -2568,7 +2572,7 @@ bool ImGui::SliderScalar(const char* label, ImGuiDataType data_type, void* v, co
         }
     }
     if (temp_input_is_active || temp_input_start)
-        return TempInputTextScalar(frame_bb, id, label, data_type, v, format);
+        return TempInputTextScalar(frame_bb, id, label, data_type, p_data, format);
 
     // Draw frame
     const ImU32 frame_col = GetColorU32(g.ActiveId == id ? ImGuiCol_FrameBgActive : g.HoveredId == id ? ImGuiCol_FrameBgHovered : ImGuiCol_FrameBg);
@@ -2577,7 +2581,7 @@ bool ImGui::SliderScalar(const char* label, ImGuiDataType data_type, void* v, co
 
     // Slider behavior
     ImRect grab_bb;
-    const bool value_changed = SliderBehavior(frame_bb, id, data_type, v, v_min, v_max, format, power, ImGuiSliderFlags_None, &grab_bb);
+    const bool value_changed = SliderBehavior(frame_bb, id, data_type, p_data, p_min, p_max, format, power, ImGuiSliderFlags_None, &grab_bb);
     if (value_changed)
         MarkItemEdited(id);
 
@@ -2587,7 +2591,7 @@ bool ImGui::SliderScalar(const char* label, ImGuiDataType data_type, void* v, co
 
     // Display value using user-provided display format so user can add prefix/suffix/decorations to the value.
     char value_buf[64];
-    const char* value_buf_end = value_buf + DataTypeFormatString(value_buf, IM_ARRAYSIZE(value_buf), data_type, v, format);
+    const char* value_buf_end = value_buf + DataTypeFormatString(value_buf, IM_ARRAYSIZE(value_buf), data_type, p_data, format);
     RenderTextClipped(frame_bb.Min, frame_bb.Max, value_buf, value_buf_end, NULL, ImVec2(0.5f,0.5f));
 
     if (label_size.x > 0.0f)
@@ -2683,7 +2687,7 @@ bool ImGui::SliderInt4(const char* label, int v[4], int v_min, int v_max, const
     return SliderScalarN(label, ImGuiDataType_S32, v, 4, &v_min, &v_max, format);
 }
 
-bool ImGui::VSliderScalar(const char* label, const ImVec2& size, ImGuiDataType data_type, void* v, const void* v_min, const void* v_max, const char* format, float power)
+bool ImGui::VSliderScalar(const char* label, const ImVec2& size, ImGuiDataType data_type, void* p_data, const void* p_min, const void* p_max, const char* format, float power)
 {
     ImGuiWindow* window = GetCurrentWindow();
     if (window->SkipItems)
@@ -2723,7 +2727,7 @@ bool ImGui::VSliderScalar(const char* label, const ImVec2& size, ImGuiDataType d
 
     // Slider behavior
     ImRect grab_bb;
-    const bool value_changed = SliderBehavior(frame_bb, id, data_type, v, v_min, v_max, format, power, ImGuiSliderFlags_Vertical, &grab_bb);
+    const bool value_changed = SliderBehavior(frame_bb, id, data_type, p_data, p_min, p_max, format, power, ImGuiSliderFlags_Vertical, &grab_bb);
     if (value_changed)
         MarkItemEdited(id);
 
@@ -2734,7 +2738,7 @@ bool ImGui::VSliderScalar(const char* label, const ImVec2& size, ImGuiDataType d
     // Display value using user-provided display format so user can add prefix/suffix/decorations to the value.
     // For the vertical slider we allow centered text to overlap the frame padding
     char value_buf[64];
-    const char* value_buf_end = value_buf + DataTypeFormatString(value_buf, IM_ARRAYSIZE(value_buf), data_type, v, format);
+    const char* value_buf_end = value_buf + DataTypeFormatString(value_buf, IM_ARRAYSIZE(value_buf), data_type, p_data, format);
     RenderTextClipped(ImVec2(frame_bb.Min.x, frame_bb.Min.y + style.FramePadding.y), frame_bb.Max, value_buf, value_buf_end, NULL, ImVec2(0.5f,0.0f));
     if (label_size.x > 0.0f)
         RenderText(ImVec2(frame_bb.Max.x + style.ItemInnerSpacing.x, frame_bb.Min.y + style.FramePadding.y), label);
@@ -2847,7 +2851,7 @@ int ImParseFormatPrecision(const char* fmt, int default_precision)
 
 // Create text input in place of another active widget (e.g. used when doing a CTRL+Click on drag/slider widgets)
 // FIXME: Facilitate using this in variety of other situations.
-bool ImGui::TempInputTextScalar(const ImRect& bb, ImGuiID id, const char* label, ImGuiDataType data_type, void* data_ptr, const char* format)
+bool ImGui::TempInputTextScalar(const ImRect& bb, ImGuiID id, const char* label, ImGuiDataType data_type, void* p_data, const char* format)
 {
     ImGuiContext& g = *GImGui;
 
@@ -2860,7 +2864,7 @@ bool ImGui::TempInputTextScalar(const ImRect& bb, ImGuiID id, const char* label,
     char fmt_buf[32];
     char data_buf[32];
     format = ImParseFormatTrimDecorations(format, fmt_buf, IM_ARRAYSIZE(fmt_buf));
-    DataTypeFormatString(data_buf, IM_ARRAYSIZE(data_buf), data_type, data_ptr, format);
+    DataTypeFormatString(data_buf, IM_ARRAYSIZE(data_buf), data_type, p_data, format);
     ImStrTrimBlanks(data_buf);
 
     g.CurrentWindow->DC.CursorPos = bb.Min;
@@ -2875,14 +2879,16 @@ bool ImGui::TempInputTextScalar(const ImRect& bb, ImGuiID id, const char* label,
     }
     if (value_changed)
     {
-        value_changed = DataTypeApplyOpFromText(data_buf, g.InputTextState.InitialTextA.Data, data_type, data_ptr, NULL);
+        value_changed = DataTypeApplyOpFromText(data_buf, g.InputTextState.InitialTextA.Data, data_type, p_data, NULL);
         if (value_changed)
             MarkItemEdited(id);
     }
     return value_changed;
 }
 
-bool ImGui::InputScalar(const char* label, ImGuiDataType data_type, void* data_ptr, const void* step, const void* step_fast, const char* format, ImGuiInputTextFlags flags)
+// Note: p_data, p_step, p_step_fast are _pointers_ to a memory address holding the data. For an Input widget, p_step and p_step_fast are optional.
+// Read code of e.g. InputFloat(), InputInt() etc. or examples in 'Demo->Widgets->Data Types' to understand how to use this function directly.
+bool ImGui::InputScalar(const char* label, ImGuiDataType data_type, void* p_data, const void* p_step, const void* p_step_fast, const char* format, ImGuiInputTextFlags flags)
 {
     ImGuiWindow* window = GetCurrentWindow();
     if (window->SkipItems)
@@ -2895,7 +2901,7 @@ bool ImGui::InputScalar(const char* label, ImGuiDataType data_type, void* data_p
         format = DataTypeGetInfo(data_type)->PrintFmt;
 
     char buf[64];
-    DataTypeFormatString(buf, IM_ARRAYSIZE(buf), data_type, data_ptr, format);
+    DataTypeFormatString(buf, IM_ARRAYSIZE(buf), data_type, p_data, format);
 
     bool value_changed = false;
     if ((flags & (ImGuiInputTextFlags_CharsHexadecimal | ImGuiInputTextFlags_CharsScientific)) == 0)
@@ -2903,7 +2909,7 @@ bool ImGui::InputScalar(const char* label, ImGuiDataType data_type, void* data_p
     flags |= ImGuiInputTextFlags_AutoSelectAll;
     flags |= ImGuiInputTextFlags_NoMarkEdited;  // We call MarkItemEdited() ourselve by comparing the actual data rather than the string.
 
-    if (step != NULL)
+    if (p_step != NULL)
     {
         const float button_size = GetFrameHeight();
 
@@ -2911,7 +2917,7 @@ bool ImGui::InputScalar(const char* label, ImGuiDataType data_type, void* data_p
         PushID(label);
         SetNextItemWidth(ImMax(1.0f, CalcItemWidth() - (button_size + style.ItemInnerSpacing.x) * 2));
         if (InputText("", buf, IM_ARRAYSIZE(buf), flags)) // PushId(label) + "" gives us the expected ID from outside point of view
-            value_changed = DataTypeApplyOpFromText(buf, g.InputTextState.InitialTextA.Data, data_type, data_ptr, format);
+            value_changed = DataTypeApplyOpFromText(buf, g.InputTextState.InitialTextA.Data, data_type, p_data, format);
 
         // Step buttons
         const ImVec2 backup_frame_padding = style.FramePadding;
@@ -2922,13 +2928,13 @@ bool ImGui::InputScalar(const char* label, ImGuiDataType data_type, void* data_p
         SameLine(0, style.ItemInnerSpacing.x);
         if (ButtonEx("-", ImVec2(button_size, button_size), button_flags))
         {
-            DataTypeApplyOp(data_type, '-', data_ptr, data_ptr, g.IO.KeyCtrl && step_fast ? step_fast : step);
+            DataTypeApplyOp(data_type, '-', p_data, p_data, g.IO.KeyCtrl && p_step_fast ? p_step_fast : p_step);
             value_changed = true;
         }
         SameLine(0, style.ItemInnerSpacing.x);
         if (ButtonEx("+", ImVec2(button_size, button_size), button_flags))
         {
-            DataTypeApplyOp(data_type, '+', data_ptr, data_ptr, g.IO.KeyCtrl && step_fast ? step_fast : step);
+            DataTypeApplyOp(data_type, '+', p_data, p_data, g.IO.KeyCtrl && p_step_fast ? p_step_fast : p_step);
             value_changed = true;
         }
 
@@ -2946,7 +2952,7 @@ bool ImGui::InputScalar(const char* label, ImGuiDataType data_type, void* data_p
     else
     {
         if (InputText(label, buf, IM_ARRAYSIZE(buf), flags))
-            value_changed = DataTypeApplyOpFromText(buf, g.InputTextState.InitialTextA.Data, data_type, data_ptr, format);
+            value_changed = DataTypeApplyOpFromText(buf, g.InputTextState.InitialTextA.Data, data_type, p_data, format);
     }
     if (value_changed)
         MarkItemEdited(window->DC.LastItemId);
@@ -2954,7 +2960,7 @@ bool ImGui::InputScalar(const char* label, ImGuiDataType data_type, void* data_p
     return value_changed;
 }
 
-bool ImGui::InputScalarN(const char* label, ImGuiDataType data_type, void* v, int components, const void* step, const void* step_fast, const char* format, ImGuiInputTextFlags flags)
+bool ImGui::InputScalarN(const char* label, ImGuiDataType data_type, void* p_data, int components, const void* p_step, const void* p_step_fast, const char* format, ImGuiInputTextFlags flags)
 {
     ImGuiWindow* window = GetCurrentWindow();
     if (window->SkipItems)
@@ -2971,10 +2977,10 @@ bool ImGui::InputScalarN(const char* label, ImGuiDataType data_type, void* v, in
         PushID(i);
         if (i > 0)
             SameLine(0, g.Style.ItemInnerSpacing.x);
-        value_changed |= InputScalar("", data_type, v, step, step_fast, format, flags);
+        value_changed |= InputScalar("", data_type, p_data, p_step, p_step_fast, format, flags);
         PopID();
         PopItemWidth();
-        v = (void*)((char*)v + type_size);
+        p_data = (void*)((char*)p_data + type_size);
     }
     PopID();