Question

I want to compile an old (1998) implementation of Edge Collapse from Game Developer’s Magazine (Project file is compressed in “melax.zip”) on Visual Studio 2008.

On line 390 of winmain.cpp I get the following compile error:

winmain.cpp(390) : error C2664: 'ReleaseDC' : cannot convert parameter 1 from 'HDC' to 'HWND' 

and again in line 439.

How can I fix this?

Answer 1

The arguments to ReleaseDC are reversed in the call – he calls ReleaseDC(hDC, hWnd), while the correct signature is

int ReleaseDC(
  __in  HWND hWnd,
  __in  HDC hDC
);

Enjoy fixing a 13 year old bug 🙂