bsnes/hiro/windows/monitor.cpp

55 lines
1.5 KiB
C++

#if defined(Hiro_Monitor)
namespace hiro {
struct MonitorInfo {
uint monitor = 0;
uint primary = 0;
Geometry geometry;
uint index = 0;
};
static auto CALLBACK MonitorEnumProc(HMONITOR hMonitor, HDC hdcMonitor, LPRECT lprcMonitor, LPARAM dwData) -> BOOL {
MonitorInfo& info = *(MonitorInfo*)dwData;
MONITORINFOEX mi{};
mi.cbSize = sizeof(MONITORINFOEX);
GetMonitorInfo(hMonitor, &mi);
string displayName = (const char*)utf8_t(mi.szDevice);
if(displayName.beginsWith(R"(\\.\DISPLAYV)")) return true; //ignore pseudo-monitors
if(mi.dwFlags & MONITORINFOF_PRIMARY) info.primary = info.index;
if(info.monitor == info.index) {
info.geometry = {lprcMonitor->left, lprcMonitor->top, lprcMonitor->right - lprcMonitor->left, lprcMonitor->bottom - lprcMonitor->top};
}
info.index++;
return true;
}
auto pMonitor::count() -> uint {
return GetSystemMetrics(SM_CMONITORS);
}
auto pMonitor::dpi(uint monitor) -> Position {
HDC hdc = GetDC(0);
auto dpiX = (float)GetDeviceCaps(hdc, LOGPIXELSX);
auto dpiY = (float)GetDeviceCaps(hdc, LOGPIXELSY);
ReleaseDC(0, hdc);
return {dpiX, dpiY};
}
auto pMonitor::geometry(uint monitor) -> Geometry {
MonitorInfo info;
info.monitor = monitor;
EnumDisplayMonitors(nullptr, nullptr, MonitorEnumProc, (LPARAM)&info);
return info.geometry;
}
auto pMonitor::primary() -> uint {
MonitorInfo info;
EnumDisplayMonitors(nullptr, nullptr, MonitorEnumProc, (LPARAM)&info);
return info.primary;
}
}
#endif