public static extern void GuiPanel(Rectangle bounds);
public static extern Color GuiColorPicker(Rectangle bounds, Color color);
public static extern float GuiColorBarAlpha(Rectangle bounds, float alpha);
public static extern int GuiListView(Rectangle bounds, string text, ref int active, ref int scrollIndex, bool editMode);
public static extern int GuiMessageBox(Rectangle bounds, string windowTitle, string message);
public static extern void GuiStatusBar(Rectangle bounds, string text);
public static extern void GuiScrollBar(Rectangle bounds, int value, int minValue, int maxValue);
public static extern bool GuiToggle(Rectangle bounds, string text, bool active);
public static extern int GuiToggleGroup(Rectangle bounds, string text, int active);
public static extern bool GuiImageButton(Rectangle bounds, Texture2D texture);
public static extern bool GuiImageButtonEx(Rectangle bounds, Texture2D texture, Rectangle texSource, string text);
public static extern bool GuiLabelButton(Rectangle bounds, string text);
public static extern void GuiLabel(Rectangle bounds, string text);
public static extern Rectangle GuiScrollPanel(Rectangle bounds, Rectangle content, ref Vector2 scroll);
public static extern float GuiSlider(Rectangle bounds, float value, float minValue, float maxValue, bool showValue);
public static extern bool GuiCheckBox(Rectangle bounds, bool isChecked);
public static extern float GuiProgressBar(Rectangle bounds, float value, float minValue, float maxValue, bool showValue);
public static extern int GuiComboBox(Rectangle bounds, string text, int active);
public static extern void GuiDummyRec(Rectangle bounds, string text);
public static extern bool GuiDropdownBox(Rectangle bounds, string[] text, ref int active, bool edit);
public static extern void GuiGrid(Rectangle bounds, float spacing, int subdivs);
public static extern bool GuiSpinner(Rectangle bounds, ref int value, int maxValue, int btnWidth);
public static extern int GuiListViewEx(Rectangle bounds, string text, int count, ref int enabled, ref int active, ref int focus, ref int scrollIndex, bool editMode);
public static extern bool GuiValueBox(Rectangle bounds, int value, int maxValue);
public static extern int GuiTextInputBox(Rectangle bounds, string windowTitle, string message, string buttons);
public static extern bool GuiTextBox(Rectangle bounds, StringBuilder text, int textSize, bool freeEdit);
public static extern Color GuiColorPanel(Rectangle bounds, Color color);
public static extern bool GuiTextBoxMulti(Rectangle bounds, StringBuilder text, int textSize, bool editMode);
public static extern float GuiColorBarHue(Rectangle bounds, float value);
public static extern void GuiGroupBox(Rectangle bounds, string text);