[Interest] win: can't trap WM_ENTER/EXITMENULOOP?
David M. Cotter
dave at kjams.com
Mon Oct 25 18:39:40 CEST 2021
in the documentation here <https://docs.microsoft.com/en-us/windows/win32/menurc/menus>, it indicates i can get a message when the menu bar starts to be browsed, and another when the browsing is completed.
this is exactly what i need (the purpose is unrelated to this post).
So in my QMainWindow derived class, i override the nativeEvent() method, like so:
bool QBrowserWindow::nativeEvent(
const QByteArray& eventType,
void *messageP,
qintptr *resultP)
{
bool handledB(false);
if (eventType == kWindowsEventType_GENERIC) {
MSG& msg(*(MSG *)messageP);
switch (msg.message) {
default: {
// nothing else
} break;
case WM_ENTERMENULOOP: {
Log("start menu browsing");
SuspendTableUpdates(true);
} break;
case WM_EXITMENULOOP: {
Log("end menu browsing");
SuspendTableUpdates(false);
} break;
}
}
return handledB;
}
However, those messages are never sent :(
Any idea why not?
-dave
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