[求助]：请大家帮助看看

hpfchm

源程序如下：
一个比较简单的程序，画出矩形，矩形的宽和长从对话框中输入，可是却得不到值啊！x,y都是空的啊！问题出在哪儿？请各位帮忙看看！
(DEFUN C:rect()
(SETQ DCL_ID (LOAD_DIALOG "rect.DCL"))
(NEW_DIALOG "RECT" DCL_ID)


(START_DIALOG)
(setq x (GET_TILE "RECT_W"))
(setq y (GET_TILE "RECT_H" ))
(UNLOAD_DIALOG DCL_ID)
(SETQ PT_0 (GETPOINT "\nSelect rectangle lower left point : "))
(SETQ PT_1 (POLAR PT_0 0 x))
(SETQ PT_2 (POLAR PT_1 (/ PI 2) y))
(SETQ PT_3 (POLAR PT_2 PI x))
(COMMAND "PLINE" PT_0 PT_1 PT_2 PT_3 "C")
(PRINC))

RECT:dialog
{ label="Rectangle" ;
:edit_box //编辑框组件
{ label="Rectangle width : " ;
key="RECT_W" ;
edit_limit=16;
edit_width=10;
fixed_width=true;
}
:edit_box //编辑框组件
{ label="Rectangle heigth :" ;
key="RECT_H" ;
edit_limit=16;
edit_width=10;
fixed_width=true;
}
ok_only;
}

zhang8755

(setq x (GET_TILE "RECT_W"))
(setq y (GET_TILE "RECT_H" ))
改为
(setq x (atof (GET_TILE "RECT_W")))
(setq y (atof (GET_TILE "RECT_H" )))
注意:通过GET_TILE 得到的是字符串

hpfchm

谢谢楼上的！
还有入下问题解决不了，请大家看看，我做了个幻灯片rect.sld可是在对话框中却不能显示，不知道是错哪儿了，程序入下：(DEFUN C:RECT()

(initimg "rect" "rect")
(SETQ DCL_ID (LOAD_DIALOG "RECT.DCL"))
(NEW_DIALOG "RECT" DCL_ID)
(SET_TILE "RECT_W" "50.0")
(SET_TILE "RECT_H" "25.0")
(ACTION_TILE "accept" "(S_RECT)(DONE_DIALOG)")
(START_DIALOG)(UNLOAD_DIALOG DCL_ID)
(SETQ PT_0 (GETPOINT "\nSelect rectangle lower left point : "))
(SETQ PT_1 (POLAR PT_0 0 TMP_W) PT_2 (POLAR PT_1 (/ PI 2) TMP_H)
      PT_3 (POLAR PT_2 PI TMP_W))
(COMMAND "PLINE" PT_0 PT_1 PT_2 PT_3 "C")
(PRINC))

(DEFUN S_RECT()
(SETQ TMP_W (ABS (ATOF (GET_TILE "RECT_W")))
      TMP_H (ABS (ATOF (GET_TILE "RECT_H"))))
)  




(defun initimg(image sld)
(start_image image)
(slide_image 0 0 (dimx_tile image) (dimy_tile image) sld)
(end_image)
)


RECT:dialog

            
{ label="Rectangle" ;
  
:row{
     :image{ width=20;
              height=16;
               key="rect";
               color=-2;}
:edit_box
{ label="Rectangle width :  " ;
key="RECT_W" ;
edit_limit=16;
edit_width=10;
fixed_width=true;
}
:edit_box //编辑框组件
{ label="Rectangle heigth :" ;
key="RECT_H" ;
edit_limit=16;
edit_width=10;
fixed_width=true;
}  }
ok_only;
}

aidraft

你在对话框加载前就调用(initimg "rect" "rect")，当然不行。