Win32 API中MK_CONTROL和VK_CONTROL有什么区别?
首先,我检查了定义的值。
MK_CONTROL:0x0008 VK_CONTROL:0x11
其次,我在我的简单代码中进行了测试。
case WM_MOUSEMOVE:
if(wParam & MK_CONTROL) // This works here.
abort();
if(wParam & VK_CONTROL) // This doesn't work here.
abort();
case WM_KEYDOWN:
if(wParam & MK_CONTROL) // This doesn't work here.
abort();
if(wParam & VK_CONTROL) // This works here.
abort();
case WM_LBUTTONDOWN:
if(wParam & MK_CONTROL) // This doens't work here.
abort();
if(wParam == VK_CONTROL) // This doesn't work here.
abort();
wParam值是否取决于鼠标设备的状态?
MK_ ..和VK_ ..之间的区别是什么?
答案 0 :(得分:2)
wParam
的含义完全取决于您发送的消息。每条消息的文档都会告诉您哪些值对该消息有意义。