Mini memory editor for dear imgui (to embed in your game/tools)

(Archived) imgui_memory_editor.h

// Mini memory editor for Dear ImGui (to embed in your game/tools)
// Animated GIF: https://twitter.com/ocornut/status/894242704317530112

// THE MEMORY EDITOR CODE HAS MOVED TO GIT: 
//   https://github.com/ocornut/imgui_club/tree/master/imgui_memory_editor
// Click "Revisions" on the Gist to see old version.

Hello @leiradel, sorry I missed your question earlier.
It is a little tricky because the InputText widget is currently always "owning" the active text.
I've came up with a workaround by rewriting the content of the text. The gist above has been update to v0.11.

And here is the test code I used to verify it worked:

static unsigned char ram[0x1000] = { 0 };
if ((ImGui::GetFrameCount() % 60) == 0)
    for (int n = 0; n < 0x1000; n++)
        ram[n] = ((n % 16) << 4) | ((ram[n]+1) & 0x0F);
static MemoryEditor mem_editor;
mem_editor.Draw("Test", ram, 0x1000);

I had to add following to build:

#include <stdio.h>
#pragma GCC diagnostic ignored "-Wparentheses"
#pragma GCC diagnostic ignored "-Wunused-variable"
#pragma GCC diagnostic ignored "-Wtype-limits"

imgui_memory_editor.h:229:94: error: suggest parentheses around ‘&&’ within ‘||’ [-Werror=parentheses]
                     bool is_next_byte_highlighted = (n + 1 == Rows) || (addr + 1 < mem_size) && ((HighlightMax != (size_t)-1 && addr + 1 < HighlightMax) || (HighlightFn && HighlightFn(mem_data, addr + 1)));

imgui_memory_editor.h:286:24: error: suggest explicit braces to avoid ambiguous ‘else’ [-Werror=parentheses]
                     if (data_write && sscanf(DataInputBuf, "%X", &data_input_value) == 1

imgui_memory_editor.h:387:26: error: comparison of unsigned expression >= 0 is always true [-Werror=type-limits]
             if (GotoAddr >= 0 && GotoAddr < mem_size)

@bkaradzic: thanks, all 4 (inc. stdio) should be fixed now.

Great gadget @ocornut!
If only I could get a callback when user changes a byte..

.. or is it WriteFn() I want ..

.. yes

Hello! I know this gist is pretty old now but I find it very interesting. Could it be possible to update it so it works with the newest versions of imgui?
Nevermind! I see that it has been moved. It's really nice, by the way.

The header of the file has a link to the repository where this is now located and up to date.