ArcGIS Engine Developer Guide

VISUAL C++
public
enum { IDD = IDD_MYDIALOG };
BEGIN_MSG_MAP(CMyDialog)
MESSAGE_HANDLER(WM_INITDIALOG, OnInitDialog)
// Add a handler to ensure event unadvise occurs.
MESSAGE_HANDLER(WM_DESTROY, OnDestroy)
COMMAND_ID_HANDLER(IDOK, OnOK)
COMMAND_ID_HANDLER(IDCANCEL, OnCancel)
END_MSG_MAP()
LRESULT OnInitDialog(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL&
bHandled)
{
// Calls IConnectionPoint::Advise() for each control on the dialog box
with sink map entry
AtlAdviseSinkMap(this, TRUE);
return 1; // Let the system set the focus.
}
LRESULT OnDestroy(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
// Calls IConnectionPoint::Unadvise() for each control on the dialog box
with sink map entry
AtlAdviseSinkMap(this, FALSE);
return 0;
}
LRESULT OnOK(WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled)
{
EndDialog(wID);
return 0;
}
LRESULT OnCancel(WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled)
{
EndDialog(wID);
return 0;
}
// ATL callback from SinkMap entry
VOID __stdcall OnMouseDownMapcontrol1(LONG button, LONG shift, LONG x,
LONG y, DOUBLE mapX, DOUBLE mapY)
{
MessageBox(_T("MouseDown!"));
}
Chapter 4 • Developer environments • 131