How to set the background image of RichEdit control

Prepared by: zheng yu

Rely onKenwhale instructions,I have tested it.RichEdit control(In the VC ++ 6.0 + SP6 environment ).

Follow these steps:

1: InheritanceCricheditctrl: onerasebkgnd (CDC * PDC)In the message eventRichEditControl to draw the background image:

M_bmp background.drawdib (PDC, 0, 0, RC. Width (), RC. Height ());

You can also useSubclass RichEdit windowAnd then process it in the callback function.Wm_erasebkgndMessage.

2: SetRichEditTransparent properties of controls;

3 : Follow Kenwhale As mentioned, Hook Now Gdi32.dll In Exttextout Function to remove the text-output options of RichEdit from eto_opaque Style .

To sum up, you can achieve the background image effect of the RichEdit control.

?

Accordingly, I also implemented the RichEdit control background to draw the AVI animation effect.

Save the photo. PairThank you!

Prepared by: zheng yu

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