C# Signature:
[DllImport("user32.dll")]
static extern IntPtr SendMessage(IntPtr hWnd, uint Msg, IntPtr wParam,IntPtr lParam);
VB Signature:
Declare Function SendMessage Lib "user32.dll" (ByVal hWnd As IntPtr, ByVal Msg As Integer,
ByVal wParam As IntPtr, ByVal lParam As IntPtr) As IntPtr
User-Defined Types:
None.
Notes:
Parameters
hWnd can be set using the Handle property of a Control. Msg constants can be found at http://www.codeproject.com/csharp/cswindowsmessages.asp.
Tips & Tricks:
Example useage to enumerate windows, and send a message to one (in C#): http://www.sloppycode.net/sloppycode/Article-104.html
Sample Code:
C#
[DllImport("user32.dll")]
private static extern IntPtr SendMessage(IntPtr hWnd, uint Msg, IntPtr wParam,IntPtr lParam);
private const int WM_NCPAINT = 0x0085;
// Tell ourselves to paint our border, override the WndProc method to then
// intercept this message.
private void foo()
{
SendMessage(this.Handle,WM_NCPAINT,new IntPtr(0),new IntPtr(0));
}
Alternative Managed API:
Do you know one? Please contribute it!
