MFC实现无对话框接收自定义消息

class CMessagerDialog : public CWnd
{
public:
	CMessagerDialog();
	~CMessagerDialog();
protected:
	afx_msg LRESULT DoSomthing(WPARAM wParam,LPARAM lParam);
}

BEGIN_MESSAGE_MAP(CGrmMonServer, CWnd)
	ON_MESSAGE(WM_APP + 5, &CMessagerDialog::DoSomthing)

	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

CMessagerDialog::CMessagerDialog()
{
	CString wnd_class_name = ::AfxRegisterWndClass(NULL);
	BOOL created = this->CreateEx(0,wnd_class_name, L"MessagerDialog",0,0,0,0,0,HWND_MESSAGE,0);
}

LRESULT CMessagerDialog::DoSomthing(WPARAM wParam,LPARAM lParam)
{
	AfxMessageBox(L"Who call me?");
	return 0;
}

 

//实例化
CMessagerDialog *msgdlg = new CMessagerDialog;

//使用时，直接调用函数发送消息即可
msgdlg->SendMessage(WM_APP + 5, 0, 0);

如果主程序中无DoModal，可以手动调用msgdlg->RunModalLoop();