@Pete, the difference with FCF_DLGBORDER is that it is thicker then FCF_BORDER, it'll work for any frame.
@André, what's the full call to flFrameOpts()? I notice you mention rc in your original post, I'm not sure if you can change the frame with a resource though I'll admit to not knowing much about resources yet.
Solved... Good questions... The FCF_DLGBORDER was actually proposed by a rather well-known author of PM apps, but the instruction to add a frame was as clear as telling to using a pragma to thunk the pointer to a C++ function wrapper.
Dave's "call" refers to a function and not to a resource. I finally found this function, appended FCF_DLGBORDER, recompiled *.*, and it works. I assumed it was harder, because the well-known author didn't change this single line of code. I didn't append any other FCF_* setting:
FCF_SYSMENU | FCF_MINBUTTON | FCF_ICON | FCF_MENU | FCF_TASKLIST |
FCF_TITLEBAR | FCF_ACCELTABLE
| FCF_DLGBORDERSo I've learned that specific resources weren't involved in this case. I did mention using RC to avoid that the community had to ask if I had recompiled a changed resource file too.