Question

如何获取桌面最上层的窗口？vc windows编程

想要获取在桌面最上层的窗口，然后在上面贴图，请问高手如何实现？
补充问一下，贴上去的图，真么能删掉，想实现动画的效果！

Answer 1

LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
int wmId, wmEvent;
PAINTSTRUCT ps;
HDC hdc,hd;
RECT rc;
TCHAR tx[]=L"Hello,VS2005.";
HWND hw;
switch (message)
{
case WM_COMMAND:
break;
case WM_CREATE:
SetTimer(hWnd,1,1000,NULL);
break;
case WM_TIMER:
hw=GetForegroundWindow();
if(hw)
{
hd=GetDC(hw);
TextOut(hd,10,10,tx,_tcslen(tx));
ReleaseDC(hw,hd);
}
break;
case WM_PAINT:
hdc = BeginPaint(hWnd, &ps);
// TODO: Add any drawing code here...
EndPaint(hWnd, &ps);
break;
case WM_DESTROY:
KillTimer(hWnd,1);
PostQuitMessage(0);
break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
return 0;
}

//GetForegroundWindow有时不灵光
//仅仅尝试了下TextOut,有了DC，画图其实一样。