| VB声明 | |
| Declare Function CreateRectRgn Lib "gdi32" Alias "CreateRectRgn" (ByVal X1 As Long, ByVal Y1 As Long, ByVal X2 As Long, ByVal Y2 As Long) As Long | |
| 说明 | |
| 创建一个由点X1，Y1和X2，Y2描述的矩形区域 | |
| 返回值 | |
| Long，执行成功为区域句柄，失败则为零 | |
| 参数表 | |
| 参数 | 类型及说明 |
| X1,Y1 | Long，矩形左上角X，Y坐标 |
| X2,Y2 | Long，矩形右下角X，Y坐标 |
| 注解 | |
不用时一定要用DeleteObject函数删除该区域 |
|