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Procedure PrintRichEdit(const Caption: string;const RichEdt: TRichEdit);
// Requer a Printers e RichEdit declaradas na clausula uses da unit
var
Range: TFormatRange;
LastChar, MaxLen, LogX, LogY, OldMap: Integer;
begin
FillChar(Range, SizeOf(TFormatRange), 0);
with Printer, Range do
begin
BeginDoc;
hdc := Handle;
hdcTarget := hdc;
LogX := GetDeviceCaps(Handle, LOGPIXELSX);
LogY := GetDeviceCaps(Handle, LOGPIXELSY);
if IsRectEmpty(RichEdt.PageRect) then
begin
rc.right := PageWidth * 1440 div LogX;
rc.bottom := PageHeight * 1440 div LogY;
end
else
begin
rc.left := RichEdt.PageRect.Left * 1440 div LogX;
rc.top := RichEdt.PageRect.Top * 1440 div LogY;
rc.right := RichEdt.PageRect.Right * 1440 div LogX;
rc.bottom := RichEdt.PageRect.Bottom * 1440 div LogY;
end;
rcPage := rc;
Title := Caption;
LastChar := 0;
MaxLen := RichEdt.GetTextLen;
chrg.cpMax := -1;
OldMap := SetMapMode(hdc, MM_TEXT);
SendMessage(RichEdt.Handle, EM_FORMATRANGE, 0, 0);
try
repeat
chrg.cpMin := LastChar;
LastChar := SendMessage(RichEdt.Handle, EM_FORMATRANGE, 1,Longint(@Range));
if (LastChar < MaxLen) and (LastChar < -1) then
begin
NewPage;
end;
until (LastChar = MaxLen) or (LastChar = -1);
EndDoc;
finally
SendMessage(RichEdt.Handle, EM_FORMATRANGE, 0, 0);
SetMapMode(hdc, OldMap);
end;
end;
end;