Review standalone usage mechanism about raygui HOT 5 CLOSED

// Input required functions
//-------------------------------------------------------------------------------
static Vector2 GetMousePosition(void) { return (Vector2){ 0, 0 }; }
static int GetMouseWheelMove(void) { return 0; }
static bool IsMouseButtonDown(int button) { return false; }
static bool IsMouseButtonPressed(int button) { return false; }
static bool IsMouseButtonReleased(int button) { return false; }

static bool IsKeyDown(int key) { return false; }
static bool IsKeyPressed(int key) { return false; }
static int GetKeyPressed(void) { return 0; }                     // -- GuiTextBox()
//-------------------------------------------------------------------------------

// Drawing required functions
//-------------------------------------------------------------------------------
static void DrawRectangle(int x, int y, int width, int height, Color color) { /* TODO */ }
static void DrawRectangleRec(Rectangle rec, Color color) { DrawRectangle(rec.x, rec.y, rec.width, rec.height, color); }

static void DrawRectangleLinesEx(Rectangle rec, int lineThick, Color color) { /* TODO */ }

static void DrawRectangleLines(int x, int y, int width, int height, Color color) { /* TODO */ }             // -- GuiColorPicker()
static void DrawRectangleGradientV(int posX, int posY, int width, int height, Color color1, Color color2);  // -- GuiColorPicker()
static void DrawRectangleGradientH(int posX, int posY, int width, int height, Color color1, Color color2);  // -- GuiColorPicker()
static void DrawRectangleGradientEx(Rectangle rec, Color col1, Color col2, Color col3, Color col4);         // -- GuiColorPicker()

static void DrawTriangle(Vector2 v1, Vector2 v2, Vector2 v3, Color color) { /* TODO */ }                    // -- GuiDropdownBox()
static void DrawLineEx(Vector2 startPos, Vector2 endPos, float thick, Color color) { /* TODO */ }           // -- GuiScrollBar()

static void DrawTextureRec(Texture2D texture, Rectangle sourceRec, Vector2 position, Color tint) { }        // -- GuiImageButtonEx()
//-------------------------------------------------------------------------------

// Text required functions
//-------------------------------------------------------------------------------
static Font GetFontDefault(void);   // --  GetTextWidth()

static Vector2 MeasureTextEx(Font font, const char *text, float fontSize, float spacing) { return (Vector2){ 0.0f }; }  // Measure text size depending on font
static void DrawTextEx(Font font, const char *text, Vector2 position, float fontSize, float spacing, Color tint) {  }   // Draw text using font and additional parameters
//-------------------------------------------------------------------------------

typedef int  (*myMeasureText)(const char *text, int fontSize);
typedef void (*myDrawText)(const char *text, int posX, int posY, int fontSize, Color color);
typedef void (*myDrawRectangle)(int x, int y, int width, int height, Color color);
typedef Vector2 (*myGetMousePosition)(void);
typedef bool (*myIsMouseButtonDown)(int button);
typedef bool (*myIsMouseButtonReleased)(int button);
typedef bool (*myIsMouseButtonUp)(int button);
typedef int (*myGetKeyPressed)(void);
typedef bool (*myIsKeyPressed)(int key);
typedef bool (*myIsKeyDown)(int key);
typedef void (*myDrawRectangleLines)(int x, int y, int width, int height, Color color);
typedef void (*myDrawRectangleGradientV)(int posX, int posY, int width, int height, Color color1, Color color2);
typedef void (*myDrawRectangleGradientH)(int posX, int posY, int width, int height, Color color1, Color color2);
typedef void (*myDrawRectangleGradientEx)(Rectangle rec, Color col1, Color col2, Color col3, Color col4);
typedef void (*myDrawTexture)(Texture2D texture, int posX, int posY, Color tint);

myMeasureText MeasureTextFunc = NULL;
myDrawText DrawTextFunc = NULL;
myDrawRectangle DrawRectangleFunc = NULL;
myGetMousePosition GetMousePositionFunc = NULL;
myIsMouseButtonDown IsMouseButtonDownFunc = NULL;
myIsMouseButtonReleased IsMouseButtonReleasedFunc = NULL;
myIsMouseButtonUp IsMouseButtonUpFunc = NULL;
myGetKeyPressed GetKeyPressedFunc = NULL;
myIsKeyPressed IsKeyPressedFunc = NULL;
myIsKeyDown IsKeyDownFunc = NULL;
myDrawRectangleLines DrawRectangleLinesFunc = NULL;
myDrawRectangleGradientV DrawRectangleGradientVFunc = NULL;
myDrawRectangleGradientH DrawRectangleGradientHFunc = NULL;
myDrawRectangleGradientEx DrawRectangleGradientExFunc = NULL;
myDrawTexture DrawTextureFunc = NULL;

//---

static int MeasureText(const char *text, int fontSize) { MeasureTextFunc(text, fontSize); }
static void DrawText(const char *text, int posX, int posY, int fontSize, Color color) { DrawTextFunc(text, posX, posY, fontSize, color); }
static void DrawRectangle(int x, int y, int width, int height, Color color) { DrawRectangleFunc(x, y, width, height, color); }
static void DrawRectangleRec(Rectangle rec, Color color) { DrawRectangle(rec.x, rec.y, rec.width, rec.height, color); }

// Input related functions
static Vector2 GetMousePosition(void) { return GetMousePositionFunc(); }
static bool IsMouseButtonDown(int button) {return IsMouseButtonDownFunc(button); }
static bool IsMouseButtonReleased(int button) {return IsMouseButtonReleasedFunc(button); }

static bool IsMouseButtonUp(int button) {return IsMouseButtonUpFunc(button);}
static int GetKeyPressed(void) {return GetKeyPressedFunc();}
static bool IsKeyPressed(int key) {return IsKeyPressedFunc(key); }
static bool IsKeyDown(int key) {return IsKeyDownFunc(key); }

// Control specific functions
static void DrawRectangleLines(int x, int y, int width, int height, Color color) { DrawRectangleLinesFunc(x, y, width, height, color); }
static void DrawRectangleGradientV(int posX, int posY, int width, int height, Color color1, Color color2) { DrawRectangleGradientVFunc(posX, posY, width, height, color1, color2); }
static void DrawRectangleGradientH(int posX, int posY, int width, int height, Color color1, Color color2) { DrawRectangleGradientHFunc(posX, posY, width, height, color1, color2); }
static void DrawRectangleGradientEx(Rectangle rec, Color col1, Color col2, Color col3, Color col4) { DrawRectangleGradientExFunc(rec, col1, col2, col3, col4); }
static void DrawTexture(Texture2D texture, int posX, int posY, Color tint) { DrawTextureFunc(texture, posX, posY, tint); }