C++ GetMessage/PeekMessage-删除消息队列中的所有消息
我有以下代码 SendApp,单击按钮[X]时,执行以下代码C++ GetMessage/PeekMessage-删除消息队列中的所有消息,c++,message-queue,sendmessage,peekmessage,C++,Message Queue,Sendmessage,Peekmessage,我有以下代码 SendApp,单击按钮[X]时,执行以下代码 HWND pHWndReceiveApp = FindWindowA(NULL, "ReceiveApp"); if (NULL == pHWndReceiveApp) { MessageBox(0, MSG_FAIL, CAPTION, 0); return; } for (int i = 0; i < 7; i++) { PostMess
HWND pHWndReceiveApp = FindWindowA(NULL, "ReceiveApp");
if (NULL == pHWndReceiveApp)
{
MessageBox(0, MSG_FAIL, CAPTION, 0);
return;
}
for (int i = 0; i < 7; i++)
{
PostMessageA(pHWndReceiveApp, 9, 9, 0);
}
MessageBox(0, MSG_OK, CAPTION, 0);
如您所见,我希望在ReceiveApp中增加变量I之前删除消息队列中的所有消息。
我读了,看到了
PM_REMOVE-消息在通过处理后从队列中删除
偷看消息
我原以为所有的消息都应该被删除,但事实并非如此,在我按下SendApp中的[X]按钮后,ReceiveApp中的变量I仍然会增加7
那么我如何删除消息队列中的所有消息呢?我知道了。我们可以在while循环中使用peek消息来清除队列中的消息,如下所示
#define ID 9
//...
int i = 0;
msg.message = 69;
while (GetMessage(&msg, 0, 0, 0))
{
if (msg.message == ID)
{
TranslateMessage(&msg);
DispatchMessage(&msg);
while (PeekMessage(&msg, NULL, ID, ID, PM_REMOVE) > 0) //Clear message queue!
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
//I want to remove all message in the message queue before increase i
++i;
Sleep(1000);
}
}
我明白了。我们可以在while循环中使用peek消息来清除队列中的消息,如下所示
#define ID 9
//...
int i = 0;
msg.message = 69;
while (GetMessage(&msg, 0, 0, 0))
{
if (msg.message == ID)
{
TranslateMessage(&msg);
DispatchMessage(&msg);
while (PeekMessage(&msg, NULL, ID, ID, PM_REMOVE) > 0) //Clear message queue!
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
//I want to remove all message in the message queue before increase i
++i;
Sleep(1000);
}
}