C# Signature:
[DllImport("user32.dll")]
static extern bool RedrawWindow(IntPtr hWnd, [In] ref RECT lprcUpdate,
IntPtr hrgnUpdate, uint flags);
[DllImport("user32.dll")]
static extern bool RedrawWindow(IntPtr hWnd, IntPtr lprcUpdate,
IntPtr hrgnUpdate, uint flags);
User-Defined Types:
None.
Notes:
RedrawWindow() flags:
#define RDW_INVALIDATE 0x0001
#define RDW_INTERNALPAINT 0x0002
#define RDW_ERASE 0x0004
#define RDW_VALIDATE 0x0008
#define RDW_NOINTERNALPAINT 0x0010
#define RDW_NOERASE 0x0020
#define RDW_NOCHILDREN 0x0040
#define RDW_ALLCHILDREN 0x0080
#define RDW_UPDATENOW 0x0100
#define RDW_ERASENOW 0x0200
#define RDW_FRAME 0x0400
#define RDW_NOFRAME 0x0800
[StructLayout(LayoutKind.Sequential)]
public struct RECT{
public int Left;
public int Top;
public int Right;
public int Bottom;
}
Tips & Tricks:
Please add some!
Sample Code:
private void InvalidateWindow()
{
WinAPI.RedrawWindow(this.Handle, IntPtr.Zero, IntPtr.Zero,
0x0400/*RDW_FRAME*/ | 0x0100/*RDW_UPDATENOW*/
| 0x0001/*RDW_INVALIDATE*/);
}
Alternative Managed API:
Do you know one? Please contribute it!
