set_tpositionT_set_tpositionSetTpositionSetTpositionset_tposition (算子)

名称

set_tpositionT_set_tpositionSetTpositionSetTpositionset_tposition — 设置文本光标的位置。

签名

描述

set_tpositionset_tpositionSetTpositionSetTpositionSetTpositionset_tposition sets the position of the text cursor in the output window. The reference position is the upper left corner of an upper case character.

The position is measured in the image coordinate system. The position of the text cursor can be marked, e.g., by an underscore. The next text output in this window starts at the cursor position. The left end of the baseline for writing the following text string (not considering descenders) is placed on this position.

The position is changed by the output or input of text (write_stringwrite_stringWriteStringWriteStringWriteStringwrite_string, read_stringread_stringReadStringReadStringReadStringread_string) or by an explicit change of position by (set_tpositionset_tpositionSetTpositionSetTpositionSetTpositionset_tposition, new_linenew_lineNewLineNewLineNewLinenew_line). In order to stop the display of the cursor, the operator set_tshapeset_tshapeSetTshapeSetTshapeSetTshapeset_tshape with the parameter ”invisible” can be used.

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。

参数

结果

set_tpositionset_tpositionSetTpositionSetTpositionSetTpositionset_tposition returns 2 ( H_MSG_TRUE) if the window is valid.否则将抛出异常。

可能的前趋

open_windowopen_windowOpenWindowOpenWindowOpenWindowopen_window

可能的后继

write_stringwrite_stringWriteStringWriteStringWriteStringwrite_string, read_stringread_stringReadStringReadStringReadStringread_string

替代

new_linenew_lineNewLineNewLineNewLinenew_line

另见

read_stringread_stringReadStringReadStringReadStringread_string, write_stringwrite_stringWriteStringWriteStringWriteStringwrite_string

模块

基础