highgui.hpp File Reference

#include "opencv2/core.hpp"

Classes
struct	cv::QtFont
	QtFont available only for Qt. See cv::fontQt. More...

Namespaces
	cv
	"black box" representation of the file storage associated with a file on disk.

Typedefs
typedef void(*	cv::ButtonCallback) (int state, void *userdata)
	Callback function for a button created by cv::createButton. More...
typedef void(*	cv::MouseCallback) (int event, int x, int y, int flags, void *userdata)
	Callback function for mouse events. see cv::setMouseCallback. More...
typedef void(*	cv::OpenGlDrawCallback) (void *userdata)
	Callback function defined to be called every frame. See cv::setOpenGlDrawCallback. More...
typedef void(*	cv::TrackbarCallback) (int pos, void *userdata)
	Callback function for Trackbar see cv::createTrackbar. More...

Enumerations
enum	cv::MouseEventFlags {   cv::EVENT_FLAG_LBUTTON = 1,   cv::EVENT_FLAG_RBUTTON = 2,   cv::EVENT_FLAG_MBUTTON = 4,   cv::EVENT_FLAG_CTRLKEY = 8,   cv::EVENT_FLAG_SHIFTKEY = 16,   cv::EVENT_FLAG_ALTKEY = 32 }
	Mouse Event Flags see cv::MouseCallback. More...
enum	cv::MouseEventTypes {   cv::EVENT_MOUSEMOVE = 0,   cv::EVENT_LBUTTONDOWN = 1,   cv::EVENT_RBUTTONDOWN = 2,   cv::EVENT_MBUTTONDOWN = 3,   cv::EVENT_LBUTTONUP = 4,   cv::EVENT_RBUTTONUP = 5,   cv::EVENT_MBUTTONUP = 6,   cv::EVENT_LBUTTONDBLCLK = 7,   cv::EVENT_RBUTTONDBLCLK = 8,   cv::EVENT_MBUTTONDBLCLK = 9,   cv::EVENT_MOUSEWHEEL = 10,   cv::EVENT_MOUSEHWHEEL = 11 }
	Mouse Events see cv::MouseCallback. More...
enum	cv::QtButtonTypes {   cv::QT_PUSH_BUTTON = 0,   cv::QT_CHECKBOX = 1,   cv::QT_RADIOBOX = 2,   cv::QT_NEW_BUTTONBAR = 1024 }
	Qt "button" type. More...
enum	cv::QtFontStyles {   cv::QT_STYLE_NORMAL = 0,   cv::QT_STYLE_ITALIC = 1,   cv::QT_STYLE_OBLIQUE = 2 }
	Qt font style. More...
enum	cv::QtFontWeights {   cv::QT_FONT_LIGHT = 25,   cv::QT_FONT_NORMAL = 50,   cv::QT_FONT_DEMIBOLD = 63,   cv::QT_FONT_BOLD = 75,   cv::QT_FONT_BLACK = 87 }
	Qt font weight. More...
enum	cv::WindowFlags {   cv::WINDOW_NORMAL = 0x00000000,   cv::WINDOW_AUTOSIZE = 0x00000001,   cv::WINDOW_OPENGL = 0x00001000,   cv::WINDOW_FULLSCREEN = 1,   cv::WINDOW_FREERATIO = 0x00000100,   cv::WINDOW_KEEPRATIO = 0x00000000,   cv::WINDOW_GUI_EXPANDED =0x00000000,   cv::WINDOW_GUI_NORMAL = 0x00000010 }
	Flags for cv::namedWindow. More...
enum	cv::WindowPropertyFlags {   cv::WND_PROP_FULLSCREEN = 0,   cv::WND_PROP_AUTOSIZE = 1,   cv::WND_PROP_ASPECT_RATIO = 2,   cv::WND_PROP_OPENGL = 3,   cv::WND_PROP_VISIBLE = 4 }
	Flags for cv::setWindowProperty / cv::getWindowProperty. More...

Functions
void	cv::addText (const Mat &img, const String &text, Point org, const QtFont &font)
	Draws a text on the image. More...
void	cv::addText (const Mat &img, const String &text, Point org, const String &nameFont, int pointSize=-1, Scalar color=Scalar::all(0), int weight=QT_FONT_NORMAL, int style=QT_STYLE_NORMAL, int spacing=0)
	Draws a text on the image. More...
int	cv::createButton (const String &bar_name, ButtonCallback on_change, void *userdata=0, int type=QT_PUSH_BUTTON, bool initial_button_state=false)
	Attaches a button to the control panel. More...
int	cv::createTrackbar (const String &trackbarname, const String &winname, int *value, int count, TrackbarCallback onChange=0, void *userdata=0)
	Creates a trackbar and attaches it to the specified window. More...
void	cv::destroyAllWindows ()
	Destroys all of the HighGUI windows. More...
void	cv::destroyWindow (const String &winname)
	Destroys the specified window. More...
void	cv::displayOverlay (const String &winname, const String &text, int delayms=0)
	Displays a text on a window image as an overlay for a specified duration. More...
void	cv::displayStatusBar (const String &winname, const String &text, int delayms=0)
	Displays a text on the window statusbar during the specified period of time. More...
QtFont	cv::fontQt (const String &nameFont, int pointSize=-1, Scalar color=Scalar::all(0), int weight=QT_FONT_NORMAL, int style=QT_STYLE_NORMAL, int spacing=0)
	Creates the font to draw a text on an image. More...
int	cv::getMouseWheelDelta (int flags)
	Gets the mouse-wheel motion delta, when handling mouse-wheel events cv::EVENT_MOUSEWHEEL and cv::EVENT_MOUSEHWHEEL. More...
int	cv::getTrackbarPos (const String &trackbarname, const String &winname)
	Returns the trackbar position. More...
Rect	cv::getWindowImageRect (const String &winname)
	Provides rectangle of image in the window. More...
double	cv::getWindowProperty (const String &winname, int prop_id)
	Provides parameters of a window. More...
void	cv::imshow (const String &winname, InputArray mat)
	Displays an image in the specified window. More...
void	cv::imshow (const String &winname, const ogl::Texture2D &tex)
	Displays OpenGL 2D texture in the specified window. More...
void	cv::loadWindowParameters (const String &windowName)
	Loads parameters of the specified window. More...
void	cv::moveWindow (const String &winname, int x, int y)
	Moves window to the specified position. More...
void	cv::namedWindow (const String &winname, int flags=WINDOW_AUTOSIZE)
	Creates a window. More...
void	cv::resizeWindow (const String &winname, int width, int height)
	Resizes window to the specified size. More...
void	cv::resizeWindow (const String &winname, const cv::Size &size)
void	cv::saveWindowParameters (const String &windowName)
	Saves parameters of the specified window. More...
Rect	cv::selectROI (const String &windowName, InputArray img, bool showCrosshair=true, bool fromCenter=false)
	Selects ROI on the given image. Function creates a window and allows user to select a ROI using mouse. Controls: use space or enter to finish selection, use key c to cancel selection (function will return the zero cv::Rect). More...
Rect	cv::selectROI (InputArray img, bool showCrosshair=true, bool fromCenter=false)
void	cv::selectROIs (const String &windowName, InputArray img, std::vector< Rect > &boundingBoxes, bool showCrosshair=true, bool fromCenter=false)
	Selects ROIs on the given image. Function creates a window and allows user to select a ROIs using mouse. Controls: use space or enter to finish current selection and start a new one, use esc to terminate multiple ROI selection process. More...
void	cv::setMouseCallback (const String &winname, MouseCallback onMouse, void *userdata=0)
	Sets mouse handler for the specified window. More...
void	cv::setOpenGlContext (const String &winname)
	Sets the specified window as current OpenGL context. More...
void	cv::setOpenGlDrawCallback (const String &winname, OpenGlDrawCallback onOpenGlDraw, void *userdata=0)
	Sets a callback function to be called to draw on top of displayed image. More...
void	cv::setTrackbarMax (const String &trackbarname, const String &winname, int maxval)
	Sets the trackbar maximum position. More...
void	cv::setTrackbarMin (const String &trackbarname, const String &winname, int minval)
	Sets the trackbar minimum position. More...
void	cv::setTrackbarPos (const String &trackbarname, const String &winname, int pos)
	Sets the trackbar position. More...
void	cv::setWindowProperty (const String &winname, int prop_id, double prop_value)
	Changes parameters of a window dynamically. More...
void	cv::setWindowTitle (const String &winname, const String &title)
	Updates window title. More...
int	cv::startLoop (int(*pt2Func)(int argc, char *argv[]), int argc, char *argv[])
int	cv::startWindowThread ()
void	cv::stopLoop ()
void	cv::updateWindow (const String &winname)
	Force window to redraw its context and call draw callback ( See cv::setOpenGlDrawCallback ). More...
int	cv::waitKey (int delay=0)
	Waits for a pressed key. More...
int	cv::waitKeyEx (int delay=0)
	Similar to waitKey, but returns full key code. More...