实际打出来不一样才对,因为不同的打印机,它们的分辨率也是不同的 给你一段代码用用?unit mPrint;interfaceuses Windows, Classes, SysUtils, Forms, Graphics, Printers, Dialogs; procedure SetPaperHeight(Value:integer); Procedure SetPaperWidth(Value:integer); //打印文字部分 procedure PrintText(X, Y: Extended; Txt: string; m_Font : TFont); //打印线条 guofeng Procedure PrintLine(x,y,x1,y1:Extended); procedure GetOffsetPos; //字符宽度 function AvgCharWidth: Word; //字符高度 function CharHeight: Word; //设置纸张时显示实际的纸张值 function PosChangX(PosX:integer):integer; function PosChangY(PosY:integer):integer; implementationvar OffSetX, OffSetY: Integer;//取得字符的高度 function CharHeight: Word; var Metrics: TTextMetric; begin GetTextMetrics(Printer.Canvas.Handle, Metrics); Result := Metrics.tmHeight; end;//file://取得字符的平均宽度 function AvgCharWidth: Word; var Metrics: TTextMetric; begin GetTextMetrics(Printer.Canvas.Handle, Metrics); Result := Metrics.tmAveCharWidth; end;//file://取得纸张的物理尺寸---单位:点 function GetPhicalPaper: TPoint; var PageSize : TPoint; begin //PageSize.X; 纸张物理宽度-单位:点 //PageSize.Y; 纸张物理高度-单位:点 Escape(Printer.Handle, GETPHYSPAGESIZE, 0,nil,@PageSize); Result := PageSize; end;//file://2.取得纸张的逻辑宽度--可打印区域 //file://取得纸张的逻辑尺寸 function PaperLogicSize: TPoint; var APoint: TPoint; begin APoint.X := Printer.PageWidth; APoint.Y := Printer.PageHeight; Result := APoint; end;//file://纸张水平对垂直方向的纵横比例 function HVLogincRatio: Extended; var AP: TPoint; begin Ap := PaperLogicSize; Result := Ap.y/Ap.X; end;//file://取得纸张的横向偏移量-单位:点 function GetOffSetX: Integer; begin Result := GetDeviceCaps(Printer.Handle, PhysicalOffSetX); end;//file://取得纸张的纵向偏移量-单位:点 function GetOffSetY: Integer; begin Result := GetDeviceCaps(Printer.Handle, PhysicalOffSetY); end;//file://毫米单位转换为英寸单位 function MmToInch(Length: Extended): Extended; begin Result := Length/25.4; end;//file://英寸单位转换为毫米单位 function InchToMm(Length: Extended): Extended; begin Result := Length*25.4; end;//file://取得水平方向每英寸打印机的点数 function HPointsPerInch: Integer; begin Result := GetDeviceCaps(Printer.Handle, LOGPIXELSX); // ShowMessage(IntToStr(Result)); end;//file://取得纵向方向每英寸打印机的光栅数 function VPointsPerInch: Integer; begin Result := GetDeviceCaps(Printer.Handle, LOGPIXELSY) end;//file://横向点单位转换为毫米单位 function XPointToMm(Pos: Integer): Extended; begin Result := Pos*25.4/HPointsPerInch; end;//file://纵向点单位转换为毫米单位 function YPointToMm(Pos: Integer): Extended; begin Result := Pos*25.4/VPointsPerInch; end;//file://设置纸张高度-单位:mm procedure SetPaperHeight(Value:integer); var Device : array[0..255] of char; Driver : array[0..255] of char; Port : array[0..255] of char; hDMode : THandle; PDMode : PDEVMODE; begin //file://自定义纸张最小高度127mm if Value < 127 then Value := 127; //自定义纸张最大高度432mm if Value > 432 then Value := 432; Printer.PrinterIndex := Printer.PrinterIndex; Printer.GetPrinter(Device, Driver, Port, hDMode); if hDMode <> 0 then begin pDMode := GlobalLock(hDMode); if pDMode <> nil then begin pDMode^.dmFields := pDMode^.dmFields or DM_PAPERSIZE or DM_PAPERLENGTH; pDMode^.dmPaperSize := DMPAPER_USER; pDMode^.dmPaperLength := Value * 10; pDMode^.dmFields := pDMode^.dmFields or DMBIN_MANUAL; pDMode^.dmDefaultSource := DMBIN_MANUAL; GlobalUnlock(hDMode); end; end; Printer.PrinterIndex := Printer.PrinterIndex; end;// //设置纸张宽度:单位--mm Procedure SetPaperWidth(Value:integer); var Device : array[0..255] of char; Driver : array[0..255] of char; Port : array[0..255] of char; hDMode : THandle; PDMode : PDEVMODE; begin //自定义纸张最小宽度76mm if Value < 76 then Value := 76; //自定义纸张最大宽度216mm if Value > 216 then Value := 216; Printer.PrinterIndex := Printer.PrinterIndex; Printer.GetPrinter(Device, Driver, Port, hDMode); if hDMode <> 0 then begin pDMode := GlobalLock(hDMode); if pDMode <> nil then begin pDMode^.dmFields := pDMode^.dmFields or DM_PAPERSIZE or DM_PAPERWIDTH; pDMode^.dmPaperSize := DMPAPER_USER; //将毫米单位转换为0.1mm单位 pDMode^.dmPaperWidth := Value * 10; pDMode^.dmFields := pDMode^.dmFields or DMBIN_MANUAL; pDMode^.dmDefaultSource := DMBIN_MANUAL; GlobalUnlock(hDMode); end; end; Printer.PrinterIndex := Printer.PrinterIndex; end;procedure GetOffsetPos; var Fn: TStrings; FileName: string; begin try Fn := TStringList.Create; FileName := ExtractFilePath(Application.ExeName) + 'PrnPosSet.ini'; if FileExists(FileName) then begin Fn.LoadFromFile(FileName); OffSetX := StrToInt(Fn.Values['X']); OffSetY := StrToInt(Fn.Values['Y']); end else begin Fn.Values['X'] := '160'; Fn.Values['Y'] := '-20'; OffSetX := 60; OffSetY := -20; Fn.SaveToFile(FileName); end; finally Fn.Free; end; end;// //在 (Xmm, Ymm)处按指定配置文件信息和字体输出字符串 procedure PrintText(X, Y: Extended; Txt: string; m_Font : TFont); var Px, Py: Integer; // TempInt:integer; begin GetOffsetPos(); //打开配置文件,读出横向和纵向偏移量 X := X + OffSetX; Y := Y + OffSetY; Px := Round(X/90 * HPointsPerInch); Py := Round(Y/90 * VPointsPerInch); Py := Py - GetOffSetY-CharHeight-2; Px := Px - GetOffSetX; Printer.Canvas.Font.Assign(m_Font); Printer.Canvas.TextOut(Px, Py, Txt); end;//增加画线部分 gzf procedure PrintLine(X,Y,X1,Y1: Extended); var Px, Py: Integer; Px1, Py1: Integer; begin GetOffsetPos(); //打开配置文件,读出横向和纵向偏移量 画线部分的起点 X := X + OffSetX; Y := Y + OffSetY; Px := Round(X/90 * HPointsPerInch); Py := Round(Y/90 * VPointsPerInch); Py := Py - GetOffSetY; Px := Px - GetOffSetX;//打开配置文件,读出横向和纵向偏移量 画线部分的终点 X1:= X1 + OffSetX; Y1 := Y1 + OffSetY; Px1 := Round(X1/90 * HPointsPerInch); Py1 := Round(Y1/90 * VPointsPerInch); Py1 := Py1 - GetOffSetY; Px1 := Px1 - GetOffSetX; with Printer.Canvas do begin MoveTo(px,py); LineTo(px1,py1); end; end;function PosChangX(PosX:integer):integer; var TempX:integer; begin TempX:=PosX; TempX:=Round(TempX/90 * HPointsPerInch); Result:=TempX- GetOffSetX; end;function PosChangY(PosY:integer):integer; var TempY:integer; begin TempY:=PosY; TempY:=Round(TempY/90 * HPointsPerInch); Result:=TempY- GetOffSetY; end; end.
给你一段代码用用?unit mPrint;interfaceuses
Windows, Classes, SysUtils, Forms, Graphics, Printers, Dialogs; procedure SetPaperHeight(Value:integer);
Procedure SetPaperWidth(Value:integer);
//打印文字部分
procedure PrintText(X, Y: Extended; Txt: string; m_Font : TFont);
//打印线条 guofeng
Procedure PrintLine(x,y,x1,y1:Extended);
procedure GetOffsetPos;
//字符宽度
function AvgCharWidth: Word;
//字符高度
function CharHeight: Word;
//设置纸张时显示实际的纸张值
function PosChangX(PosX:integer):integer;
function PosChangY(PosY:integer):integer;
implementationvar
OffSetX, OffSetY: Integer;//取得字符的高度
function CharHeight: Word;
var
Metrics: TTextMetric;
begin
GetTextMetrics(Printer.Canvas.Handle, Metrics);
Result := Metrics.tmHeight;
end;//file://取得字符的平均宽度
function AvgCharWidth: Word;
var
Metrics: TTextMetric;
begin
GetTextMetrics(Printer.Canvas.Handle, Metrics);
Result := Metrics.tmAveCharWidth;
end;//file://取得纸张的物理尺寸---单位:点
function GetPhicalPaper: TPoint;
var
PageSize : TPoint;
begin
//PageSize.X; 纸张物理宽度-单位:点
//PageSize.Y; 纸张物理高度-单位:点
Escape(Printer.Handle, GETPHYSPAGESIZE, 0,nil,@PageSize);
Result := PageSize;
end;//file://2.取得纸张的逻辑宽度--可打印区域
//file://取得纸张的逻辑尺寸
function PaperLogicSize: TPoint;
var
APoint: TPoint;
begin
APoint.X := Printer.PageWidth;
APoint.Y := Printer.PageHeight;
Result := APoint;
end;//file://纸张水平对垂直方向的纵横比例
function HVLogincRatio: Extended;
var
AP: TPoint;
begin
Ap := PaperLogicSize;
Result := Ap.y/Ap.X;
end;//file://取得纸张的横向偏移量-单位:点
function GetOffSetX: Integer;
begin
Result := GetDeviceCaps(Printer.Handle, PhysicalOffSetX);
end;//file://取得纸张的纵向偏移量-单位:点
function GetOffSetY: Integer;
begin
Result := GetDeviceCaps(Printer.Handle, PhysicalOffSetY);
end;//file://毫米单位转换为英寸单位
function MmToInch(Length: Extended): Extended;
begin
Result := Length/25.4;
end;//file://英寸单位转换为毫米单位
function InchToMm(Length: Extended): Extended;
begin
Result := Length*25.4;
end;//file://取得水平方向每英寸打印机的点数
function HPointsPerInch: Integer;
begin
Result := GetDeviceCaps(Printer.Handle, LOGPIXELSX);
// ShowMessage(IntToStr(Result));
end;//file://取得纵向方向每英寸打印机的光栅数
function VPointsPerInch: Integer;
begin
Result := GetDeviceCaps(Printer.Handle, LOGPIXELSY)
end;//file://横向点单位转换为毫米单位
function XPointToMm(Pos: Integer): Extended;
begin
Result := Pos*25.4/HPointsPerInch;
end;//file://纵向点单位转换为毫米单位
function YPointToMm(Pos: Integer): Extended;
begin
Result := Pos*25.4/VPointsPerInch;
end;//file://设置纸张高度-单位:mm
procedure SetPaperHeight(Value:integer);
var
Device : array[0..255] of char;
Driver : array[0..255] of char;
Port : array[0..255] of char;
hDMode : THandle;
PDMode : PDEVMODE;
begin
//file://自定义纸张最小高度127mm
if Value < 127 then Value := 127;
//自定义纸张最大高度432mm
if Value > 432 then Value := 432;
Printer.PrinterIndex := Printer.PrinterIndex;
Printer.GetPrinter(Device, Driver, Port, hDMode);
if hDMode <> 0 then
begin
pDMode := GlobalLock(hDMode);
if pDMode <> nil then
begin
pDMode^.dmFields := pDMode^.dmFields or DM_PAPERSIZE or
DM_PAPERLENGTH;
pDMode^.dmPaperSize := DMPAPER_USER;
pDMode^.dmPaperLength := Value * 10;
pDMode^.dmFields := pDMode^.dmFields or DMBIN_MANUAL;
pDMode^.dmDefaultSource := DMBIN_MANUAL;
GlobalUnlock(hDMode);
end;
end;
Printer.PrinterIndex := Printer.PrinterIndex;
end;// //设置纸张宽度:单位--mm
Procedure SetPaperWidth(Value:integer);
var
Device : array[0..255] of char;
Driver : array[0..255] of char;
Port : array[0..255] of char;
hDMode : THandle;
PDMode : PDEVMODE;
begin
//自定义纸张最小宽度76mm if Value < 76 then Value := 76;
//自定义纸张最大宽度216mm
if Value > 216 then Value := 216; Printer.PrinterIndex := Printer.PrinterIndex;
Printer.GetPrinter(Device, Driver, Port, hDMode);
if hDMode <> 0 then
begin
pDMode := GlobalLock(hDMode);
if pDMode <> nil then
begin
pDMode^.dmFields := pDMode^.dmFields or DM_PAPERSIZE or
DM_PAPERWIDTH;
pDMode^.dmPaperSize := DMPAPER_USER;
//将毫米单位转换为0.1mm单位
pDMode^.dmPaperWidth := Value * 10;
pDMode^.dmFields := pDMode^.dmFields or DMBIN_MANUAL;
pDMode^.dmDefaultSource := DMBIN_MANUAL;
GlobalUnlock(hDMode);
end;
end;
Printer.PrinterIndex := Printer.PrinterIndex;
end;procedure GetOffsetPos;
var
Fn: TStrings;
FileName: string;
begin
try
Fn := TStringList.Create;
FileName := ExtractFilePath(Application.ExeName) + 'PrnPosSet.ini';
if FileExists(FileName) then
begin
Fn.LoadFromFile(FileName);
OffSetX := StrToInt(Fn.Values['X']);
OffSetY := StrToInt(Fn.Values['Y']);
end
else
begin
Fn.Values['X'] := '160';
Fn.Values['Y'] := '-20'; OffSetX := 60;
OffSetY := -20; Fn.SaveToFile(FileName);
end;
finally
Fn.Free;
end;
end;// //在 (Xmm, Ymm)处按指定配置文件信息和字体输出字符串
procedure PrintText(X, Y: Extended; Txt: string; m_Font : TFont);
var
Px, Py: Integer;
// TempInt:integer;
begin
GetOffsetPos();
//打开配置文件,读出横向和纵向偏移量
X := X + OffSetX;
Y := Y + OffSetY; Px := Round(X/90 * HPointsPerInch);
Py := Round(Y/90 * VPointsPerInch); Py := Py - GetOffSetY-CharHeight-2;
Px := Px - GetOffSetX; Printer.Canvas.Font.Assign(m_Font);
Printer.Canvas.TextOut(Px, Py, Txt);
end;//增加画线部分 gzf
procedure PrintLine(X,Y,X1,Y1: Extended);
var
Px, Py: Integer;
Px1, Py1: Integer;
begin
GetOffsetPos();
//打开配置文件,读出横向和纵向偏移量 画线部分的起点
X := X + OffSetX;
Y := Y + OffSetY; Px := Round(X/90 * HPointsPerInch);
Py := Round(Y/90 * VPointsPerInch); Py := Py - GetOffSetY;
Px := Px - GetOffSetX;//打开配置文件,读出横向和纵向偏移量 画线部分的终点
X1:= X1 + OffSetX;
Y1 := Y1 + OffSetY; Px1 := Round(X1/90 * HPointsPerInch);
Py1 := Round(Y1/90 * VPointsPerInch); Py1 := Py1 - GetOffSetY;
Px1 := Px1 - GetOffSetX; with Printer.Canvas do
begin
MoveTo(px,py);
LineTo(px1,py1);
end;
end;function PosChangX(PosX:integer):integer;
var
TempX:integer;
begin
TempX:=PosX;
TempX:=Round(TempX/90 * HPointsPerInch);
Result:=TempX- GetOffSetX;
end;function PosChangY(PosY:integer):integer;
var
TempY:integer;
begin
TempY:=PosY;
TempY:=Round(TempY/90 * HPointsPerInch);
Result:=TempY- GetOffSetY;
end;
end.