<b>一段使窗口透明的代码(仅适用于2000)</b>

BOOL SetTransparent(HWND hWnd)

{

HMODULE hModule =GetModuleHandle("User32.DLL");

if(hModule == NULL)

{

return FALSE;

}

typedef BOOL (WINAPI* SETLAYEREDWND)( HWND, COLORREF, BYTE, DWORD);

SETLAYEREDWND SetLayeredWindowPtr = NULL;

SetLayeredWindowPtr = (SETLAYEREDWND)GetProcAddress(hModule, "SetLayeredWindowAttributes");

if(SetLayeredWindowPtr)

{

LONG lStyle = GetWindowLong(hWnd, GWL_EXSTYLE) | 0x00080000;

SetWindowLong( hWnd, GWL_EXSTYLE, lStyle);

SetLayeredWindowPtr( hWnd,

RGB(0, 0, 0),

BYTE((255 * 70) / 100),

2);

}

}