让你的窗口透明起来

#define WS_EX_LAYERED 0x00080000

#define LWA_COLORKEY 0x00000001

#define LWA_ALPHA 0x00000002

typedef BOOL (*_SetLayeredWindowAttributes)(HWND,COLORREF,BYTE,DWORD);

_SetLayeredWindowAttributes SetLayeredWindowAttributes;

void SetLayered(HWND hWnd,int Pos)

{

SetLayeredWindowAttributes = (_SetLayeredWindowAttributes)GetProcAddress(GetModuleHandle("user32.dll"),"SetLayeredWindowAttributes");

if ( SetLayeredWindowAttributes == NULL )

return ;

else{

__try{

SetWindowLong(hWnd,GWL_EXSTYLE,GetWindowLong(hWnd,GWL_EXSTYLE)|WS_EX_LAYERED);

SetLayeredWindowAttributes(hWnd,RGB(0,0,0),Pos,LWA_ALPHA);

}

__except(EXCEPTION_EXECUTE_HANDLER){

AfxMessageBox("SYSTEM FALSE");

}

}

}