1 unit EnumMonitor; 2  3 interface 4 uses 5     MultiMon, windows; 6 const 7     MONITOR_MAX_COUNT = 10; //显示器个数上限 8  9 var10      //显示区域11     gRects: array[0..MONITOR_MAX_COUNT - 1] of TRect;12      //查找到的显示器个数13     gMCount: Integer = 0;14 15 //刷新显示器信息16 procedure RefreshMontor;17 18 implementation19 20 var21     isFirst: Boolean = True; //是否是第一个，查找时用到22 23 function EnumMon(AMonitor: HMONITOR; ADC: HDC; ARect: PRect; AParam: LPARAM): Boolean; stdcall;24 var25     info: MONITORINFO;26 begin27     Result := True;28      //如果显示器个数超过预设个数，停止查找29     if gMCount >= MONITOR_MAX_COUNT then30     begin31         Result := false;32         Exit;33     end;34 35     info.cbSize := SizeOf(MONITORINFO);36     GetMonitorInfo(AMonitor, @info);37     //如果是主显示器，判断是不是第一次查找，如果是第二次，则结束查找38     if(info.dwFlags = MONITORINFOF_PRIMARY)then39     begin40         if isFirst then41         begin42             isFirst := false;43             gMCount := 1;44             gRects[0] := info.rcMonitor;45             Result := True;46             Exit;47         end48         else begin49             //标志复位50             isFirst := true;51             Result := false;52         end53     end;54 55     gRects[gMCount] := info.rcMonitor;56     Inc(gMCount);57 end;58 59 procedure RefreshMontor;60 begin61     gMCount := 0;62     isFirst := true;63     FillChar(gRects, SizeOf(gRects), 0);64     EnumDisplayMonitors(0, nil, EnumMon, 0);65 end;66 67 initialization68    RefreshMontor;69 70 finalization71     gMCount := 0;72     FillChar(gRects, SizeOf(gRects), 0);73 end.