In the call loop of DrawText, the rc vertical coordinate is also changed, but why is it always drawn at the same positio

sd2235885

Outer layer is a loop

I found a problem

When I add the CString Delete method, the first paragraph does not appear.

Does the delete method affect the operation of memDC?

sd2235885

I figured out the problem
I cannot use the Delete function of CString
Do not you know why

Which master knows