RE: Send Message(string) c# exe to vc++ exe(unmanaged) using WindowsS
- From: Dale <dale0973@xxxxxxxxxxxxx>
- Date: Fri, 24 Nov 2006 14:49:01 -0800
My demo project showing how to only run one copy of a program also
demonstrates how to send a message, using C#, to another program using the
SendMessage WIN32 API method.
http://www.dalepreston.com/Blog/2005/03/you-only-run-once.html
HTH
Dale
--
Dale Preston
MCAD C#
MCSE, MCDBA
"Mayur" wrote:
I tried followinf but working fine fo int but how to do it for string using.
user custome message
in c#
[DllImport("User32.dll")]
public static extern int FindWindow(string strClassName,string
strWindowName);
[DllImport("User32.dll")]
public static extern Int32 SendMessage(
int hWnd, // handle to destination window
int Msg, // message
int wParam, // first message parameter
[MarshalAs(UnmanagedType.LPStr)] string lParam);
public const int WM_APP = 0x8000;
public const int WM_DELETEALL =WM_APP + 0x100;
int wnd=FindWindow(null,"TestMfcSendMsgExe");
Form1.SendMessage(wnd,WM_DELETEALL,0,55);
and MFC Exe is like this
#define WM_DELETEALL WM_APP + 0x100
BEGIN_MESSAGE_MAP(CTestMfcSendMsgExeDlg, CDialog)
ON_MESSAGE (WM_DELETEALL, OnDeleteAll)
END_MESSAGE_MAP()
LRESULT CTestMfcSendMsgExeDlg::OnDeleteAll(WPARAM wParam, LPARAM lParam)
{
MessageBox("Hello","Mayur",MB_OK);
}
I am getting the message box after using SendMessage() in c# exe but i want
to send text(string ) information.
I need help..
Regards,
Mayur.
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