ObsidianDragon - DragonX ImGui Wallet

Full-node GUI wallet for DragonX cryptocurrency.
Built with Dear ImGui, SDL3, and OpenGL3/DX11.

Features:
- Send/receive shielded and transparent transactions
- Autoshield with merged transaction display
- Built-in CPU mining (xmrig)
- Peer management and network monitoring
- Wallet encryption with PIN lock
- QR code generation for receive addresses
- Transaction history with pagination
- Console for direct RPC commands
- Cross-platform (Linux, Windows)

src/ui/widgets/qr_code.h

@@ -0,0 +1,39 @@
+// DragonX Wallet - ImGui Edition
+// Copyright 2024-2026 The Hush Developers
+// Released under the GPLv3
+
+#pragma once
+
+#include <cstdint>
+
+namespace dragonx {
+namespace ui {
+
+/**
+ * @brief QR Code rendering utilities
+ */
+
+/**
+ * @brief Generate a texture containing a QR code
+ * @param data The data to encode in the QR code
+ * @param out_width Output: width of the texture
+ * @param out_height Output: height of the texture
+ * @return Texture handle (OpenGL texture ID or DX11 SRV pointer), or 0 on failure
+ */
+uintptr_t GenerateQRTexture(const char* data, int* out_width, int* out_height);
+
+/**
+ * @brief Free a QR texture
+ * @param texture_id Texture handle returned by GenerateQRTexture
+ */
+void FreeQRTexture(uintptr_t texture_id);
+
+/**
+ * @brief Render a QR code using ImGui
+ * @param texture_id Texture handle from GenerateQRTexture
+ * @param size Display size (width and height)
+ */
+void RenderQRCode(uintptr_t texture_id, float size);
+
+} // namespace ui
+} // namespace dragonx