dev_update_window — 在程序执行期间打开或关闭图标输出对象的自动输出到图形窗口。
dev_update_window( : : DisplayMode : )
dev_update_window specifies whether all iconic objects that are
returned by an operator call have to be displayed in the active graphics
window (DisplayMode = 'on'---default) or not
(DisplayMode = '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', if only selected objects
should to be displayed in the graphics window.
In this case the objects should be displayed by dev_display。
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_pc, dev_update_time,
dev_update_var, and dev_update_window 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.
此算子不支持代码导出。
DisplayMode (输入控制) string → (string)
Mode for graphic output.
默认值： 'off'
值列表： 'off', 'on'
If the values of the specified parameters are correct,
dev_update_window 返回 2 ( H_MSG_TRUE )。否则，将抛出一个异常并返回错误代码。
dev_update_pc,
dev_update_var,
dev_update_time
基础