Difference between Cclint DC & Cpaint Dc

Answer Posted / susinderan

Both draws only window's client Area
-----------------
CClienDC()
-----------------
(i) constructor calls GetDc()
(ii) Destructor calls Release()
(iii) Will not remove WM_PAINT msg
(iv) Should not be used inside onPaint().
can be used outside onPaint()

-----------------
CPaintDC()
-----------------
(i) constructor calls BeginPaint()
(ii) Destructor calls EndPaint()
(iii) Will remove WM_PAINT msg
(iv) Should be used only inside onPaint()

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