create_drawing_object_textT_create_drawing_object_textCreateDrawingObjectTextCreateDrawingObjectTextcreate_drawing_object_text创建绘图对象文本（算子）

名称

create_drawing_object_textT_create_drawing_object_textCreateDrawingObjectTextCreateDrawingObjectTextcreate_drawing_object_text — 创建一个可以交互式移动的文本对象。

签名

create_drawing_object_text( : : Row, Column, String : DrawID)

描述

create_drawing_object_textcreate_drawing_object_textCreateDrawingObjectTextCreateDrawingObjectTextCreateDrawingObjectTextcreate_drawing_object_text 创建一个文本对象，该对象可在 HALCON 窗口中交互式移动。坐标 RowRowRowRowrowrow 和 ColumnColumnColumnColumncolumncolumn 定义文本的位置。

这些参数可随时通过 get_drawing_object_paramsget_drawing_object_paramsGetDrawingObjectParamsGetDrawingObjectParamsGetDrawingObjectParamsget_drawing_object_params 进行查询，其对应的 HALCON 对象也可通过 get_drawing_object_iconicget_drawing_object_iconicGetDrawingObjectIconicGetDrawingObjectIconicGetDrawingObjectIconicget_drawing_object_iconic 获取。

除上述参数外，每个绘图对象还包含若干决定其在 HALCON 窗口中外观的参数。具体参数数量及含义详见 set_drawing_object_paramsset_drawing_object_paramsSetDrawingObjectParamsSetDrawingObjectParamsSetDrawingObjectParamsset_drawing_object_params 说明。

为启用绘图对象的交互式修改功能，该对象必须附加到现有窗口。有关详细信息，请参阅 attach_drawing_object_to_windowattach_drawing_object_to_windowAttachDrawingObjectToWindowAttachDrawingObjectToWindowAttachDrawingObjectToWindowattach_drawing_object_to_window。默认情况下，文本将使用 HALCON 窗口的当前字体设置显示。但可通过 set_drawing_object_paramsset_drawing_object_paramsSetDrawingObjectParamsSetDrawingObjectParamsSetDrawingObjectParamsset_drawing_object_params 调整字体设置。附加后，用户可通过与窗口交互来移动文本。

执行信息

多线程类型：可重入（与非独占算子并行运行）。
多线程作用域：全局（可从任何线程调用）。
未采用并行化处理。

此算子返回一个句柄。请注意，即使该句柄被用作特定算子的输入参数，这些算子仍可能改变此句柄类型的实例状态。

参数

RowRowRowRowrowrow (输入控制) point.y → (integer)

文本位置的行坐标。

默认值： 12

ColumnColumnColumnColumncolumncolumn (输入控制) point.x → (integer)

文本位置的列坐标。

默认值： 12

StringStringStringStringstringValstring (输入控制) string → (string)

要显示的字符串。

默认值： 'Text' "Text" "Text" "Text" "Text" "Text"

DrawIDDrawIDDrawIDDrawIDdrawIDdraw_id (输出控制) drawing_object → (handle)

绘图对象的句柄。

结果

如果参数值正确，算子 create_drawing_object_textcreate_drawing_object_textCreateDrawingObjectTextCreateDrawingObjectTextCreateDrawingObjectTextcreate_drawing_object_text 返回值 2 (H_MSG_TRUE)。否则将抛出异常。

可能的前趋

open_windowopen_windowOpenWindowOpenWindowOpenWindowopen_window

可能的后继

attach_drawing_object_to_windowattach_drawing_object_to_windowAttachDrawingObjectToWindowAttachDrawingObjectToWindowAttachDrawingObjectToWindowattach_drawing_object_to_window, get_drawing_object_paramsget_drawing_object_paramsGetDrawingObjectParamsGetDrawingObjectParamsGetDrawingObjectParamsget_drawing_object_params, set_drawing_object_paramsset_drawing_object_paramsSetDrawingObjectParamsSetDrawingObjectParamsSetDrawingObjectParamsset_drawing_object_params

替代

write_stringwrite_stringWriteStringWriteStringWriteStringwrite_string

另见

write_stringwrite_stringWriteStringWriteStringWriteStringwrite_string, attach_drawing_object_to_windowattach_drawing_object_to_windowAttachDrawingObjectToWindowAttachDrawingObjectToWindowAttachDrawingObjectToWindowattach_drawing_object_to_window

模块

基础

算子