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I have an edit control which takes input as text. But how to draw user defined shapes onto it.

Please help.
Posted 1-Nov-12 2:36am
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Solution 2

Derive a custom control from a CEdit and then implement OnPaint

You'll get something like the following where you will use your paint dc for drawing shapes...

class CShapeEdit : public CEdit

    virtual ~CShapeEdit();

    afx_msg void OnPaint();





void CShapeEdit::OnPaint()
	CPaintDC dc(this); // device context for painting
	// TODO: Add your message handler code here
	// Do not call CEdit::OnPaint() for painting messages

Now in your dialog class, which hosts the custom edit control, you add a member variable

CShapeEdit m_ShapeEdit;

In the implementation of your dialog class bind it to the UI using DDX

DDX_Control(pDX, IDC_SHAPE_EDIT, m_ShapeEdit);

Then later on cause it to redraw itself with


Now you have a canvas with which to explore the Win32 GDI!!!!
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Solution 1

If it is enough to draw only on the some left and/or right parts of the control,
you could use CYourEdit::SetMargins(uiLeftUntouchedPixels, uiRightUntouchedPixels)
to prevent the CEdit-content painting there, even in the edit-caret mode.
Then you could also add(at or after the creating) the WS_CLIPCHILDREN style to CYourEdit control
and place some owner-drawn CYourShapeStatic child-control(s) onto the "freed" area(s) :)

Zerr0cool wrote:
I want to draw rectangles, circles in the Edit control where the user types in.

Try to set your control in the transparent mode as shown here[^]
and then to draw the shapes on the parent's surface, "behind" the control :)
Zerr0cool 1-Nov-12 9:25am
I want to draw rectangles, circles in the Edit control where the user types in.
JackDingler 1-Nov-12 13:52pm
Perhaps you want to create a custom font and apply that?
Zerr0cool 1-Nov-12 13:57pm
Its not about custom font. When a user enters a text say circle then I want to display circle and so on inside the edit control.

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