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dev_update_windowdev_update_windowDevUpdateWindowdev_update_windowDevUpdateWindowDevUpdateWindow (Operator)


dev_update_windowdev_update_windowDevUpdateWindowdev_update_windowDevUpdateWindowDevUpdateWindow — Switches the automatic output of iconic output objects into the graphics window during program execution on or off.


dev_update_window( : : DisplayMode : )

Herror dev_update_window(const char* DisplayMode)

Herror T_dev_update_window(const Htuple DisplayMode)

Herror dev_update_window(const HTuple& DisplayMode)

void HWindow::DevUpdateWindow(const HTuple& DisplayMode) const

void DevUpdateWindow(const HTuple& DisplayMode)

static void HWindow::DevUpdateWindow(const HString& DisplayMode)

static void HWindow::DevUpdateWindow(const char* DisplayMode)

void HOperatorSetX.DevUpdateWindow([in] VARIANT DisplayMode)

void HWindowX.DevUpdateWindow([in] BSTR DisplayMode)

static void HOperatorSet.DevUpdateWindow(HTuple displayMode)

static void HWindow.DevUpdateWindow(string displayMode)


dev_update_windowdev_update_windowDevUpdateWindowdev_update_windowDevUpdateWindowDevUpdateWindow specifies whether all iconic objects that are returned by an operator call have to be displayed in the active graphics window (DisplayModeDisplayModeDisplayModeDisplayModeDisplayModedisplayMode = 'on'"on""on""on""on""on"---default) or not (DisplayModeDisplayModeDisplayModeDisplayModeDisplayModedisplayMode = 'off'"off""off""off""off""off").

This option has no influence on the object output in single step mode. After the execution of a single operator the iconic output objects are always displayed in the active graphics window.

This option should be set to 'off'"off""off""off""off""off", if only selected objects should to be displayed in the graphics window. In this case the objects should be displayed by dev_displaydev_displayDevDisplaydev_displayDevDisplayDevDisplay.

For measuring the execution time of a sequence of operators all update options should be switched off in order to reduce the influence of the runtime of GUI updates in HDevelop. For this the operators dev_update_pcdev_update_pcDevUpdatePcdev_update_pcDevUpdatePcDevUpdatePc, dev_update_timedev_update_timeDevUpdateTimedev_update_timeDevUpdateTimeDevUpdateTime, dev_update_vardev_update_varDevUpdateVardev_update_varDevUpdateVarDevUpdateVar, and dev_update_windowdev_update_windowDevUpdateWindowdev_update_windowDevUpdateWindowDevUpdateWindow or the procedures dev_update_on and dev_update_off can be used.

This option can also be controlled via the Preferences dialog: Edit -> Preferences -> Runtime Settings -> Update Window.


This operator is not supported for code export.


DisplayModeDisplayModeDisplayModeDisplayModeDisplayModedisplayMode (input_control)  string HTupleHTupleHTupleVARIANTHtuple (string) (string) (HString) (char*) (BSTR) (char*)

Mode for graphic output.

Default value: 'off' "off" "off" "off" "off" "off"

List of values: 'off'"off""off""off""off""off", 'on'"on""on""on""on""on"


If the values of the specified parameters are correct, dev_update_windowdev_update_windowDevUpdateWindowdev_update_windowDevUpdateWindowDevUpdateWindow returns 2 (H_MSG_TRUE). Otherwise an exception is raised and an error code returned.

Possible Successors


See also

dev_update_pcdev_update_pcDevUpdatePcdev_update_pcDevUpdatePcDevUpdatePc, dev_update_vardev_update_varDevUpdateVardev_update_varDevUpdateVarDevUpdateVar, dev_update_timedev_update_timeDevUpdateTimedev_update_timeDevUpdateTimeDevUpdateTime



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