如何获取挂钩winapi函数的调用后参数？

Question

对于这个例子，我正在谈论挂钩BeginPaint（），我很好地挂钩，我可以正常访问所有呼叫前...

HDC WINAPI Mine_BeginPaint(HWND hWnd, LPPAINTSTRUCT lpPaint)
{


   // do stuff here, inspecting PRE-CALL lppaint struct etc...

    return fpBeginPaint(hWnd, lpPaint);


}

我正在寻找一种方法来检查这个lpPaint struct post-call，我该怎么做？

Answer 1

HDC WINAPI Mine_BeginPaint(HWND hWnd, LPPAINTSTRUCT lpPaint){
    // do stuff here, inspecting PRE-CALL lppaint struct etc...
    HDC result = fpBeginPaint(hWnd, lpPaint);
    //inspect here whatever you want.
    return result;
}