Date: 2010jan19
OS: Windows
Level: beginner
Q. How does my application receive a user's mouse click?
A. If its a button you get WM_COMMAND otherwise WM_LBUTTONDOWN
windows messages. In MFC you can use the GUI to set this up or do:
For a button...
In your .h file:
afx_msg LRESULT OnMyButton(WPARAM, LPARAM);
In your .cpp file:
BEGIN_MESSAGE_MAP(CMyDialog, CDialog)
ON_COMMAND(ID_MY_BUTTON, OnMyButton)
END_MESSAGE_MAP()
// ...
LRESULT CMyDialog::OnMyButton(WPARAM, LPARAM);
{
}
For a click on a window...
In your .h file:
afx_msg void OnLButtonDown(UINT nFlags, CPoint point);
In your .cpp file:
BEGIN_MESSAGE_MAP(CMyWindow, CWnd)
ON_WM_LBUTTONDOWN()
END_MESSAGE_MAP()
// ...
void CMyWindow::OnLButtonDown(UINT nFlags, CPoint point)
{
// ...
}
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