get_window_extentsT_get_window_extentsGetWindowExtentsGetWindowExtentsget_window_extents (算子名称)

名称

get_window_extentsT_get_window_extentsGetWindowExtentsGetWindowExtentsget_window_extents — Information about a window's size and position.

参数签名

get_window_extents( : : WindowHandle : Row, Column, Width, Height)

描述

get_window_extentsget_window_extentsGetWindowExtentsGetWindowExtentsGetWindowExtentsget_window_extents returns the position of the upper left corner, as well as width and height of the output window.

注意

Size and position of a window may be modified by the window manager, without explicit instruction in the program. Therefore the values which are returned by get_window_extentsget_window_extentsGetWindowExtentsGetWindowExtentsGetWindowExtentsget_window_extents may change cause of side effects.

运行信息

多线程类型:可重入(与非独占操作符并行运行)。
多线程作用域:全局(可以从任何线程调用)。
未经并行化处理。

参数表

WindowHandleWindowHandleWindowHandleWindowHandlewindowHandlewindow_handle (input_control) window → (handle)

Window handle.

RowRowRowRowrowrow (output_control) rectangle.origin.y → (integer)

Row index of upper left corner of the window.

ColumnColumnColumnColumncolumncolumn (output_control) rectangle.origin.x → (integer)

Column index of upper left corner of the window.

WidthWidthWidthWidthwidthwidth (output_control) rectangle.extent.x → (integer)

Window width.

HeightHeightHeightHeightheightheight (output_control) rectangle.extent.y → (integer)

Window height.

例程 (HDevelop)

open_window(100,100,200,200,'root','visible','',WindowHandle)
fwrite_string(FileHandle, 'Move the window with the mouse!')
fnew_line(FileHandle)
repeat
get_mbutton(WindowHandle,_,_,Button)
get_window_extents(WindowHandle,Row,Column,Width,Height)
fwrite_string(FileHandle, ['(',Row,',',Column,')'])
fnew_line(FileHandle)
until(Button == 4)

例程 (C)

open_window(100,100,200,200,"root","visible","",&WindowHandle);
fwrite_string(FileHandle,"Move the window with the mouse!");
fnew_line(FileHandle);
create_tuple(&String,1);
do
{
  get_mbutton(WindowHandle,NULL,NULL,&Button);
  get_window_extents(WindowHandle,&Row,&Column,&Width,&Height);
  sprintf(buf,"Row %d Col %d ",Row,Column);
  set_s(String,buf,0);
  T_fwrite_string(FileHandle, String);
  fnew_line(FileHandle);
}
while(Button < 4);

例程 (HDevelop)

open_window(100,100,200,200,'root','visible','',WindowHandle)
fwrite_string(FileHandle, 'Move the window with the mouse!')
fnew_line(FileHandle)
repeat
get_mbutton(WindowHandle,_,_,Button)
get_window_extents(WindowHandle,Row,Column,Width,Height)
fwrite_string(FileHandle, ['(',Row,',',Column,')'])
fnew_line(FileHandle)
until(Button == 4)

例程 (HDevelop)

open_window(100,100,200,200,'root','visible','',WindowHandle)
fwrite_string(FileHandle, 'Move the window with the mouse!')
fnew_line(FileHandle)
repeat
get_mbutton(WindowHandle,_,_,Button)
get_window_extents(WindowHandle,Row,Column,Width,Height)
fwrite_string(FileHandle, ['(',Row,',',Column,')'])
fnew_line(FileHandle)
until(Button == 4)

例程 (HDevelop)

open_window(100,100,200,200,'root','visible','',WindowHandle)
fwrite_string(FileHandle, 'Move the window with the mouse!')
fnew_line(FileHandle)
repeat
get_mbutton(WindowHandle,_,_,Button)
get_window_extents(WindowHandle,Row,Column,Width,Height)
fwrite_string(FileHandle, ['(',Row,',',Column,')'])
fnew_line(FileHandle)
until(Button == 4)

结果

If the window is valid get_window_extentsget_window_extentsGetWindowExtentsGetWindowExtentsGetWindowExtentsget_window_extents returns 2 ( H_MSG_TRUE) . If necessary an exception is raised.

可能的前置算子

open_windowopen_windowOpenWindowOpenWindowOpenWindowopen_window, set_drawset_drawSetDrawSetDrawSetDrawset_draw, set_colorset_colorSetColorSetColorSetColorset_color, set_coloredset_coloredSetColoredSetColoredSetColoredset_colored, set_line_widthset_line_widthSetLineWidthSetLineWidthSetLineWidthset_line_width

参考其它

set_window_extentsset_window_extentsSetWindowExtentsSetWindowExtentsSetWindowExtentsset_window_extents, open_windowopen_windowOpenWindowOpenWindowOpenWindowopen_window

模块

Foundation

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