Example working

.gitignore

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+# Visual Studio 2015 cache/options directory
+.vs/
+# Visual Studio Code
+.vscode/
+
+# Visual C++ cache files
+ipch/
+*.aps
+*.ncb
+*.opendb
+*.opensdf
+*.sdf
+*.cachefile
+*.VC.db
+
+# Cmake Build files
+CMakeFiles/*
+CMakeCache.txt
+cmake_install.cmake
+Makefile
+
+# Binaries
+libgui-mate.a
+example

CMakeLists.txt

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+
+# gui mate
+cmake_minimum_required (VERSION 2.6)
+project (gui-mate)
+
+file(GLOB_RECURSE sources "${CMAKE_CURRENT_SOURCE_DIR}/gui-mate/*.c*")
+add_library(gui-mate STATIC ${sources})
+
+
+# Example using xoverlay
+set(OpenGL_GL_PREFERENCE "GLVND")
+find_package(PNG) # We need to link all this again since we prebuilt them staticly
+find_package(GLEW)
+find_package(OpenGL)
+find_package(X11)
+find_package(Freetype)
+if(PNG_FOUND AND GLEW_FOUND AND OPENGL_FOUND AND X11_FOUND AND FREETYPE_FOUND)
+  project (example)
+
+  file(GLOB_RECURSE sources "${CMAKE_CURRENT_SOURCE_DIR}/example-src/*.c*")
+  add_executable(example ${sources})
+
+  # is longe
+  target_link_libraries(example gui-mate
+                        "${CMAKE_CURRENT_SOURCE_DIR}/example-src/lib/libxoverlay.a"
+                        "${CMAKE_CURRENT_SOURCE_DIR}/example-src/lib/libglez.a"
+                         ${PNG_LIBRARIES} ${GLEW_LIBRARIES} ${OPENGL_gl_LIBRARY} ${FREETYPE_LIBRARIES}
+                         ${X11_X11_LIB} ${X11_Xext_LIB} ${X11_Xfixes_LIB})
+endif()
+# Wow ez

README.MD

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+# Gui Mate
+A simple primitive graphical user interface api for the big brained...
+Written in C++
+
+## Note~
+This application and api is only for making and getting a gui working and running for nekohook, sorry if you cant port it easily to your platform.
+Also, should this even be called an api :thinking:

clean.sh

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+#!/bin/bash
+
+# CMake
+rm -fr CMakeFiles/
+rm -f CMakeCache.txt
+rm -f cmake_install.cmake
+rm -f Makefile
+
+# Binaries
+rm -f libgui-mate.a
+rm -f example

example-src/example.cpp

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+
+#include "lib/xoverlay.h"
+#include "lib/glez.h"
+
+int main() {
+    xoverlay_init();
+    glez_init(xoverlay_library.width, xoverlay_library.height);
+
+    xoverlay_show();
+    while (1) {
+        // Must be called in that order.
+        xoverlay_draw_begin();
+        glez_begin();
+            glez_rect(100, 300, 200, 100, glez_rgba(255, 0, 128, 255));
+        glez_end();
+        xoverlay_draw_end();
+    }
+    return 0;
+}

example-src/lib/glez.h

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+/*
+ * glez.h
+ *
+ *  Created on: Dec 7, 2017
+ *      Author: nullifiedcat
+ */
+
+#pragma once
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/* Types */
+
+typedef struct glez_vec4_s
+{
+    union {
+        float data[4];
+        struct
+        {
+            float r;
+            float g;
+            float b;
+            float a;
+        };
+        struct
+        {
+            float x;
+            float y;
+            float z;
+            float w;
+        };
+    };
+} glez_vec4_t, glez_rgba_t;
+
+typedef unsigned int glez_texture_t;
+typedef unsigned int glez_font_t;
+
+/* State functions */
+
+void glez_init(int width, int height);
+
+void glez_shutdown();
+
+void glez_begin();
+
+void glez_end();
+
+void glez_resize(int width, int height);
+
+/* Helper functions */
+
+static inline glez_rgba_t glez_rgba(unsigned char r, unsigned char g,
+                                    unsigned char b, unsigned char a)
+{
+    glez_rgba_t result;
+    result.r = (float) r / 255.0f;
+    result.g = (float) g / 255.0f;
+    result.b = (float) b / 255.0f;
+    result.a = (float) a / 255.0f;
+    return result;
+}
+
+/* Font-related functions */
+
+#define GLEZ_FONT_COUNT 64
+#define GLEZ_FONT_INVALID ((glez_font_t) 0xFFFFFFFF)
+
+glez_font_t glez_font_load(const char *path, float size);
+
+void glez_font_unload(glez_font_t handle);
+
+void glez_font_string_size(glez_font_t font, const char *string, float *out_x,
+                           float *out_y);
+
+/* Texture-related functions */
+
+#define GLEZ_TEXTURE_INVALID ((glez_texture_t) 0xFFFFFFFF)
+
+glez_texture_t glez_texture_load_png_rgba(const char *path);
+
+void glez_texture_unload(glez_texture_t handle);
+
+void glez_texture_size(glez_texture_t handle, int *width, int *height);
+
+/* Drawing functions */
+
+void glez_line(float x, float y, float dx, float dy, glez_rgba_t color,
+               float thickness);
+
+void glez_rect(float x, float y, float w, float h, glez_rgba_t color);
+
+void glez_rect_outline(float x, float y, float w, float h, glez_rgba_t color,
+                       float thickness);
+
+void glez_rect_textured(float x, float y, float w, float h, glez_rgba_t color,
+                        glez_texture_t texture, float tx, float ty, float tw,
+                        float th, float angle);
+
+void glez_string(float x, float y, const char *string, glez_font_t font,
+                 glez_rgba_t color, float *out_x, float *out_y);
+
+void glez_string_with_outline(float x, float y, const char *string,
+                              glez_font_t font, glez_rgba_t color,
+                              glez_rgba_t outline_color, float outline_width,
+                              int adjust_outline_alpha, float *out_x,
+                              float *out_y);
+
+void glez_circle(float x, float y, float radius, glez_rgba_t color,
+                 float thickness, int steps);
+
+#ifdef __cplusplus
+}
+#endif

example-src/lib/xoverlay.h

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+/*
+ * overlay.hpp
+ *
+ *  Created on: Nov 8, 2017
+ *      Author: nullifiedcat
+ */
+
+#pragma once
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#include <X11/Xlib.h>
+#include <X11/XKBlib.h>
+
+struct xoverlay_library
+{
+    Display *display;
+    Window window;
+    Colormap colormap;
+    GC gc;
+    XGCValues gcvalues;
+    XFontStruct font;
+    int screen;
+
+    int width;
+    int height;
+
+    struct
+    {
+        int x;
+        int y;
+    } mouse;
+
+    char init;
+    char drawing;
+    char mapped;
+};
+
+extern struct xoverlay_library xoverlay_library;
+
+int xoverlay_init();
+
+void xoverlay_destroy();
+
+void xoverlay_show();
+
+void xoverlay_hide();
+
+void xoverlay_draw_begin();
+
+void xoverlay_draw_end();
+
+#ifdef __cplusplus
+}
+#endif

gui-mate/gui-mate.cpp

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+// We need a file sadly

gui-mate/nekohook/README.MD

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+# Note
+This area is for headers used in nekohook for easy pusing to it.