本文整理自网络，侵删。
var
MonInfo: TMonitorInfo;
begin
MonInfo.cbSize := SizeOf(MonInfo);
GetMonitorInfo(MonitorFromWindow(Handle, MONITOR_DEFAULTTONEAREST), @MonInfo);
ShowMessage(Format('Current resolution: %dx%d',
[MonInfo.rcMonitor.Right - MonInfo.rcMonitor.Left,
MonInfo.rcMonitor.Bottom - MonInfo.rcMonitor.Top]));
end;
动态设置屏幕分辨率
Xe10.2测试可用。
function SetScreen(x, y: Word): Boolean;
var
DevMode: TDeviceMode;
begin
Result := EnumDisplaySettings(nil, 0, DevMode);
if Result then
begin
DevMode.dmFields := DM_PELSWIDTH or DM_PELSHEIGHT;
DevMode.dmPelsWidth := x;
DevMode.dmPelsHeight := y;
Result := ChangeDisplaySettings(DevMode, 0) = DISP_CHANGE_SUCCESSFUL;
end;
end;
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