C# Signature:
[DllImport("gdi32.dll")]
static extern IntPtr CreatePolygonRgn(POINT [] lppt, int cPoints,
int fnPolyFillMode);
User-Defined Types:
Notes:
Values for fnPolyFillMode can be 1=Alternate or 2=Winding
Tips & Tricks:
System.Drawing.Point can be used instead POINT.
[DllImport("gdi32.dll")]
static extern IntPtr CreatePolygonRgn(Point[] lppt, int cPoints, int fnPolyFillMode);
Sample Code:
/// <summary>
/// Create a border for custom label control
/// </summary>
/// <returns>
/// if int is returned. Function was successful.
/// if string is returned. Function was failed.
/// </returns>
/// <remarks>Created by Jim Vazquez Castan. jim.vazquez@gmail.com</remarks>
private string SetBorder()
{
try
{
// First we create polygon
IntPtr forma = CreatePolygonRgn(edges, edges.Length, 1);
// then we create area
int iRes = SetWindowRgn(this.Handle, forma, true);
return iRes.ToString();
}
catch (Exception ex) { return ex.Message; }
}
Alternative Managed API:
Do you know one? Please contribute it!
