[SOLVED] MFC change mouse cursor on hover over CEdit control

MFC change mouse cursor on hover over CEdit control

I want to change mouse cursor to custom cursor which i added to project Resource named IDC_MY_CURSOR. i want to change mouse pointer to my cursor whenever mouse is over CEdit control only. Any idea how to do that?

Solution

To override the default behavior of standard controls, you will have to provide your own implementation. The most straight forward way to do this using MFC is to derive from a standard control implementation (CEdit in this case):

CustomEdit.h:

class CCustomEdit : public CEdit {
public:
    CCustomEdit() {}
    virtual ~CCustomEdit() {}

protected:
    DECLARE_MESSAGE_MAP()

public:
    // Custom message handler for WM_SETCURSOR
    afx_msg BOOL OnSetCursor( CWnd* pWnd, UINT nHitTest, UINT message );
};

CustomEdit.cpp:

#include "CustomEdit.h"

BEGIN_MESSAGE_MAP( CCustomEdit, CEdit )
    ON_WM_SETCURSOR()
END_MESSAGE_MAP()

BOOL CCustomEdit::OnSetCursor( CWnd* pWnd, UINT nHitTest, UINT message ) {
    ::SetCursor( AfxGetApp()->LoadCursor( IDC_MY_CURSOR ) );
    // Stop processing
    return TRUE;
}

You can use this class to dynamically create a CCustomEdit control. Alternatively, you can create a standard edit control (either dynamically or through a resource script), and attach an instance of CCustomEdit to it (see DDX_Control):

void CMyDialog::DoDataExchange( CDataExchange* pDX ) {
    DDX_Control( pDX, IDC_CUSTOM_EDIT, m_CustomEdit );
    CDialogEx::DoDataExchange( pDX );
}