Help with SetLayeredWindowAttributes

[Nobody/Anonymous]

anybody know how to use the SetLayeredWindowAttributes function??

I use this code:

#define LWA_COLORKEY 0x00000001
#define LWA_ALPHA 0x00000002

--------------------------------------------------------------

typedef BOOL (WINAPI *lpfnSetLayeredWindowAttributes)(HWND hWnd, COLORREF crKey, BYTE bAlpha, DWORD dwFlags);
lpfnSetLayeredWindowAttributes SetLayeredWindowAttributes;

HMODULE hUser32 = GetModuleHandle("user32.dll");
SetLayeredWindowAttributes = (lpfnSetLayeredWindowAttributes)GetProcAddress(hUser32,"SetLayeredWindowAttributes");

-----------------------------------------------------------------------------
and

SetWindowLong(hwnd, GWL_EXSTYLE, GetWindowLong(hwnd, GWL_EXSTYLE) | WS_EX_LAYERED);
SetLayeredWindowAttributes(hwnd, 0, (255 * 70) / 100, LWA_ALPHA);

These are the errors:

ISO C++ forbids declaration of `
   SetLayeredWindowAttributes' with no type

conflicting types for `int SetLayeredWindowAttributes'

previous declaration as `BOOL
   (*SetLayeredWindowAttributes)(HWND__*, long unsigned int, unsigned char,
   long unsigned int)'

invalid conversion from `BOOL (*)(HWND__*, long unsigned
   int, unsigned char, long unsigned int)' to `int'

In function `void RegionMe(HWND__*)':
`SetLayeredWindowAttributes' cannot be used as a function

I am aware that this only works on win2000 and XP (I have win2000) so that should not be the problem.

Anybody ?? Many thanks in advance

/Blackbird

[Nobody/Anonymous]

Im also stuck with SetLayeredWindowsAttributes... I am so insane with it that I am trying to get user32.lib to user32.a to see if it solves my problems :(

[Nobody/Anonymous]

The code above should load user32.dll dynamically and there was no error about unresolved external symbols . . .

/Blackbird

[Nobody/Anonymous]

yes, please, I'm stuck at teh same prob . . .