I''m using DirectX sdk8. When I try to compile examples from catalogue Direct3D there is an error. I don''t know what is wrong, I haven''t changed anything in this workspace. I have also problems when i try to compile DirectDraw examples, but first I would like to solve problem with Direct3D. Compiling... d3dapp.cpp D:\common\src\d3dapp.cpp(1308) : error C2664: ''DialogBoxParamA'' : cannot convert parameter 4 from ''long (struct HWND__ *,unsigned int,unsigned int,long)'' to ''int (__stdcall *)(struct HWND__ *,unsigned int,unsigned int,long)'' None of the functions with this name in scope match the target type d3dfile.cpp d3dfont.cpp d3dutil.cpp dxutil.cpp BumpEarth.cpp Error executing cl.exe. BumpEarth.exe - 1 error(s), 0 warning(s)

quote: Original post by Sokol

Compiling...
d3dapp.cpp
D:\common\src\d3dapp.cpp(1308) : error C2664: ''DialogBoxParamA'' : cannot convert parameter 4 from ''long (struct HWND__ *,unsigned int,unsigned int,long)'' to ''int (__stdcall *)(struct HWND__ *,unsigned int,unsigned int,long)''

I believe you can cast the whole thing from an int to a long

Your dialog message handler has not been correctly declared. It should be:

BOOL CALLBACK your_dialog_message_handler(  HWND hwndDlg,  // handle to dialog box  UINT uMsg,     // message  WPARAM wParam, // first message parameter  LPARAM lParam  // second message parameter); 

The CALLBACK is important as the OS expects a particular calling convention and you may have something like __fastcall enabled so things will go really tits up when you run it. I''m guessing you''re returning an LRESULT value (typedef''d as long) from your handler and not a BOOL (typedef''d as int).
Do not cast the forth parameter to the correct type - sort out the declaration of the dialog handler. C style casts are evil (unless you''re coding in C, that is, then you''ve got no alternative).

Skizz