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function MapWindowPoints(hWndFrom, hWndTo: HWND; var lpPoints; cPoints: UINT): Integer;
var
i: Integer;
XOffset, YOffset: SmallInt;
FromPoint, ToPoint: TPoint;
begin
FromPoint := Point(0, 0);
ToPoint := Point(0, 0);
if hWndFrom <> 0 then
ClientToScreen(hWndFrom, FromPoint);
if hWndTo <> 0 then
ClientToScreen(hWndTo, ToPoint);
XOffset := (FromPoint.X - ToPoint.X);
YOffset := (FromPoint.Y - ToPoint.Y);
for i := 0 to cPoints - 1 do
begin
PPoint(@lpPoints)[i].x := XOffset + PPoint(@lpPoints)[i].x;
PPoint(@lpPoints)[i].y := YOffset + PPoint(@lpPoints)[i].y;
end;
Result := MakeLong(XOffset, YOffset);
end;
{$ifndef HAS_GETDOUBLECLICKTIME}
function GetDoubleClickTime: UINT;
begin
//todo: see if gtk has a value. Use Windows default for now
Result := 500;
end;
{$endif}
{$ifndef HAS_REDRAWWINDOW}
function RedrawWindow(hWnd:THandle; lprcUpdate:PRECT; hrgnUpdate:HRGN; flags:LongWord):BOOLEAN;
begin
//todo: see if there's a better way of doing this
Result := LCLIntf.InvalidateRect(hWnd, lprcUpdate, (RDW_ERASE and flags) > 0);
end;
{$endif}
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