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Enable Mouse Keys while streaming for systems with no mouse plugged in (#721)

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Cameron Gutman 2023-01-07 14:11:14 -06:00 committed by GitHub
parent e2fce257b5
commit 7770b5f708
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1 changed files with 41 additions and 0 deletions
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41
src/platform/windows/misc.cpp
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@ -28,6 +28,9 @@ using namespace std::literals;
namespace platf { namespace platf {
using adapteraddrs_t = util::c_ptr<IP_ADAPTER_ADDRESSES>; using adapteraddrs_t = util::c_ptr<IP_ADAPTER_ADDRESSES>;
bool enabled_mouse_keys = false;
MOUSEKEYS previous_mouse_keys_state;
std::filesystem::path appdata() { std::filesystem::path appdata() {
WCHAR sunshine_path[MAX_PATH]; WCHAR sunshine_path[MAX_PATH];
GetModuleFileNameW(NULL, sunshine_path, _countof(sunshine_path)); GetModuleFileNameW(NULL, sunshine_path, _countof(sunshine_path));
@ -512,6 +515,35 @@ void streaming_will_start() {
// Promote ourselves to high priority class // Promote ourselves to high priority class
SetPriorityClass(GetCurrentProcess(), HIGH_PRIORITY_CLASS); SetPriorityClass(GetCurrentProcess(), HIGH_PRIORITY_CLASS);
// If there is no mouse connected, enable Mouse Keys to force the cursor to appear
if(!GetSystemMetrics(SM_MOUSEPRESENT)) {
BOOST_LOG(info) << "A mouse was not detected. Sunshine will enable Mouse Keys while streaming to force the mouse cursor to appear.";
// Get the current state of Mouse Keys so we can restore it when streaming is over
previous_mouse_keys_state.cbSize = sizeof(previous_mouse_keys_state);
if(SystemParametersInfoW(SPI_GETMOUSEKEYS, 0, &previous_mouse_keys_state, 0)) {
MOUSEKEYS new_mouse_keys_state = {};
// Enable Mouse Keys
new_mouse_keys_state.cbSize = sizeof(new_mouse_keys_state);
new_mouse_keys_state.dwFlags = MKF_MOUSEKEYSON | MKF_AVAILABLE;
new_mouse_keys_state.iMaxSpeed = 10;
new_mouse_keys_state.iTimeToMaxSpeed = 1000;
if(SystemParametersInfoW(SPI_SETMOUSEKEYS, 0, &new_mouse_keys_state, 0)) {
// Remember to restore the previous settings when we stop streaming
enabled_mouse_keys = true;
}
else {
auto winerr = GetLastError();
BOOST_LOG(warning) << "Unable to enable Mouse Keys: "sv << winerr;
}
}
else {
auto winerr = GetLastError();
BOOST_LOG(warning) << "Unable to get current state of Mouse Keys: "sv << winerr;
}
}
} }
void streaming_will_stop() { void streaming_will_stop() {
@ -523,6 +555,15 @@ void streaming_will_stop() {
// Disable MMCSS scheduling for DWM // Disable MMCSS scheduling for DWM
DwmEnableMMCSS(false); DwmEnableMMCSS(false);
// Restore Mouse Keys back to the previous settings if we turned it on
if(enabled_mouse_keys) {
enabled_mouse_keys = false;
if(!SystemParametersInfoW(SPI_SETMOUSEKEYS, 0, &previous_mouse_keys_state, 0)) {
auto winerr = GetLastError();
BOOST_LOG(warning) << "Unable to restore original state of Mouse Keys: "sv << winerr;
}
}
} }
bool restart_supported() { bool restart_supported() {