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How does UPP classify keys [message #54579] |
Mon, 17 August 2020 07:28 |
chivstyle
Messages: 8 Registered: August 2020 Location: China
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Promising Member |
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Hi,
I'm developing our virtual terminal, but I'm confused about the key abstraction. I've read the manual book, still confused.
I tested these codes below, it worked well so far. Can anyone help me please ?
bool SerialConnVT::Key(dword key, int)
{
bool processed = false;
// split key and flags.
dword flags = K_CTRL | K_ALT | K_SHIFT;
dword d_key = key & ~(flags | K_KEYUP); // key with delta
flags = key & flags;
//
if (d_key & K_DELTA) { // can't capture RETURN
if (key & K_KEYUP) {
processed = ProcessKeyUp(d_key, flags);
} else {
processed = ProcessKeyDown(d_key, flags);
}
} else {
if (key < 0xffff) {
processed = ProcessChar(d_key);
ProcessKeyDown(d_key, flags);
} else if (key & K_KEYUP) {
// RETURN will reach here
ProcessKeyUp(d_key, flags);
}
}
if (processed) {
mScrollToEnd = true;
}
return processed;
}
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