CreateRoundRectRgn |
VB声明 | |
Declare Function CreateRoundRectRgn Lib "gdi32" Alias "CreateRoundRectRgn" (ByVal X1 As Long, ByVal Y1 As Long, ByVal X2 As Long, ByVal Y2 As Long, ByVal X3 As Long, ByVal Y3 As Long) As Long | |
说明 | |
创建一个圆角矩形,该矩形由X1,Y1-X2,Y2确定,并由X3,Y3确定的椭圆描述圆角弧度 | |
返回值 | |
Long,执行成功则为区域句柄,失败则为0 | |
参数表 | |
参数 | 类型及说明 |
X1,Y1 | Long,矩形左上角的X,Y坐标 |
X2,Y2 | Long,矩形右下角的X,Y坐标 |
X3 | Long,圆角椭圆的宽。其范围从0(没有圆角)到矩形宽(全圆) |
Y3 | Long,圆角椭圆的高。其范围从0(没有圆角)到矩形高(全圆) |
注解 | |
不用时一定要用DeleteObject函数删除该区域 |
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