函数GUI_DrawPixel和GUI_DrawPoint的区别

eric2013

根据UCGUI3.98的源码：

GUI_DrawPoint如下：

1. /*********************************************************************
   
2. *
   
3. *       GL_DrawPoint
   
4. */
   
5. void GL_DrawPoint(int x, int y) {
   
6.   if (GUI_Context.PenSize == 1) {
   
7.     LCD_HL_DrawPixel(x, y);
   
8.   } else {
   
9.     GL_FillCircle(x, y, (GUI_Context.PenSize - 1) / 2);
   
10.   }
    
11. }
    
12. 
    
13. /*********************************************************************
    
14. *
    
15. *       GUI_DrawPoint
    
16. */
    
17. void GUI_DrawPoint(int x, int y) {
    
18.   GUI_LOCK();
    
19.   #if (GUI_WINSUPPORT)
    
20.     WM_ADDORG(x, y);
    
21.     WM_ITERATE_START(NULL); {
    
22.   #endif
    
23.   GL_DrawPoint(x, y);
    
24.   #if (GUI_WINSUPPORT)
    
25.     } WM_ITERATE_END();
    
26.   #endif
    
27.   GUI_UNLOCK();
    
28. }

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GUI_DrawPixel的源码如下：

1. /*********************************************************************
   
2. *
   
3. *       GUI_DrawPixel
   
4. */
   
5. void GUI_DrawPixel(int x, int y) {
   
6.   #if (GUI_WINSUPPORT)
   
7.     GUI_RECT r;
   
8.   #endif
   
9.   GUI_LOCK();
   
10.   #if (GUI_WINSUPPORT)
    
11.     WM_ADDORG(x,y);
    
12.     r.x0 = r.x1 = x;
    
13.     r.y0 = r.y1 = y;
    
14.     WM_ITERATE_START(&r); {
    
15.   #endif
    
16.   LCD_HL_DrawPixel(x,y);
    
17.   #if (GUI_WINSUPPORT)
    
18.     } WM_ITERATE_END();
    
19.   #endif
    
20.   GUI_UNLOCK();
    
21. }

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对比源码，区别是GUI_DrawPoint支持画笔设置粗细