c++ - 两个静态文本元素的 Winapi 不同背景颜色

Question

如何分别更改 2 个静态文本元素的背景颜色，每个元素都有不同的背景颜色

代码:

background1 = CreateWindow("STATIC","",WS_VISIBLE | WS_CHILD , 0,0,800,20, hwnd , NULL, NULL, NULL);
background2 = CreateWindow("STATIC","",WS_VISIBLE | WS_CHILD , 0,70,800,500, hwnd , NULL, NULL, NULL);


case WM_CTLCOLORSTATIC:
    {  
         HDC hdcStatic = (HDC) wParam;
         SetTextColor(hdcStatic, RGB(0,0,255));
         SetBkColor(hdcStatic, RGB(0,0,255));

         if (hbrBkgnd == NULL){
             hbrBkgnd = CreateSolidBrush(RGB(0,0,55));
         }
         return (INT_PTR)hbrBkgnd;
    }
break;

Answer 1

lparam 包含一个静态控件窗口句柄，因此您可以检查它以确定正在重绘哪个控件。

if(reinterpret_cast<::HWND>(lParam) == background1)
{
    // set background for control 1...
}
else // set backgrounds for other controls