I've got an application which calls some code to draw
to the graphics context of the current form when a
button is pressed:

CDCDrawDlg::OnOK()
{
CClientDC canvas(this);

DoDrawing(canvas);
}

I don't want what is drawn to disappear but if I
call my drawing code from the OnPaint() event handler then
the drawing will happen whether or not the button has been
pressed (i.e. straight away).

How can I ensure what has been drawn to the graphics
context remains persistent on the form in such a case.

Many thanks

Tristan.

In OnOK, set a member variable to true. In OnPaint, check if that variable
has been set.

--
Tim Robinson (MVP, Windows SDK)
http://www.themobius.co.uk/

"Tristan" <tristan_sehgal@yahoo.co.uk> wrote in message
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