C# Signature:

[DllImport("user32.dll")]
static extern bool RedrawWindow(IntPtr hWnd, [In] ref RECT 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:

Please add some!

Alternative Managed API:

Do you know one? Please contribute it!

Please edit this page!

Do you have...

• helpful tips or sample code to share for using this API in managed code?
• corrections to the existing content?
• variations of the signature you want to share?
• additional languages you want to include?

Select "Edit This Page" on the right hand toolbar and edit it! Or add new pages containing supporting types needed for this API (structures, delegates, and more).