procedure TMainForm.FormCreate(Sender: TObject);
begin
{ Copy the printer names to the combobox and set the combobox to
show the currently selected default printer }
cbPrinters.Items.Assign(Printer.Printers);
cbPrinters.Text := Printer.Printers[Printer.PrinterIndex];
// Update the label to reflect the default printer
lblPrinter.Caption := Printer.Printers[Printer.PrinterIndex];
end;procedure TMainForm.cbPrintersChange(Sender: TObject);
var
IniFile: TIniFile;
TempStr1, TempStr2: String;
S: array[0..64] of char;
begin
with Printer do
begin
// Set the new printer based on the ComboBox's selected printer
PrinterIndex := cbPrinters.ItemIndex;
// Store the printer name into a temporary string
TempStr1 := Printers[PrinterIndex];
// Delete the unnecessary portion of the printer name
System.Delete(TempStr1, Pos(' on ', TempStr1), Length(TempStr1));
// Create a TIniFile class
IniFile := TIniFile.Create('WIN.INI');
try
// Retrieve the device name of the selected printer
TempStr2 := IniFile.ReadString('Devices', TempStr1, '');
// Change the default printer to that chosen by the user
IniFile.WriteString('windows', 'device', TempStr1 + ',' + TempStr2);
// Tell all windows that the default printer changed.
StrCopy(S, 'windows');
SendMessage(HWND_BROADCAST, WM_WININICHANGE, 0, LongInt(@S));
finally
IniFile.Free;
end;
end;
// Update the label to reflect the new printer selection
lblPrinter.Caption := Printer.Printers[Printer.PrinterIndex];
end;
begin
{ Copy the printer names to the combobox and set the combobox to
show the currently selected default printer }
cbPrinters.Items.Assign(Printer.Printers);
cbPrinters.Text := Printer.Printers[Printer.PrinterIndex];
// Update the label to reflect the default printer
lblPrinter.Caption := Printer.Printers[Printer.PrinterIndex];
end;procedure TMainForm.cbPrintersChange(Sender: TObject);
var
IniFile: TIniFile;
TempStr1, TempStr2: String;
S: array[0..64] of char;
begin
with Printer do
begin
// Set the new printer based on the ComboBox's selected printer
PrinterIndex := cbPrinters.ItemIndex;
// Store the printer name into a temporary string
TempStr1 := Printers[PrinterIndex];
// Delete the unnecessary portion of the printer name
System.Delete(TempStr1, Pos(' on ', TempStr1), Length(TempStr1));
// Create a TIniFile class
IniFile := TIniFile.Create('WIN.INI');
try
// Retrieve the device name of the selected printer
TempStr2 := IniFile.ReadString('Devices', TempStr1, '');
// Change the default printer to that chosen by the user
IniFile.WriteString('windows', 'device', TempStr1 + ',' + TempStr2);
// Tell all windows that the default printer changed.
StrCopy(S, 'windows');
SendMessage(HWND_BROADCAST, WM_WININICHANGE, 0, LongInt(@S));
finally
IniFile.Free;
end;
end;
// Update the label to reflect the new printer selection
lblPrinter.Caption := Printer.Printers[Printer.PrinterIndex];
end;
解决方案 »
- C++ 写的dll中的一个函数中包括一个结构体参数,在 Delphi 中应如何给其赋值
- 資料庫內容應該為'正常|不正常|異常|其他'在delphi界面用什麽實現?
- △△TreeView简单显示数据表问题???△△
- Tchart的一个小问题,关于Chart.AddSeries(Series)和Series的AddXY(x,value,lable);
- △△△△△△HTML 帮助文件在Delphi中的调用问题???△△△△△△
- 问几个很菜却很急的问题
- 如何将读取文件中的字符到字符串变量中?在线等。急!
- 在listview上同时选中多行,如何在程序中实现用一个循环把所选的每一行的caption显示出来
- 用Remote Data Module 的一点疑惑
- 关于DBGridEh 的问题
- 请问怎样测试打印机的存在呢?
- 虎落平阳被犬欺
var
Device: array[0..255] of Char;
Driver: array[0..255] of char;
Port: array[0..255] of char;
s : array[0..255] of Char;
hDeviceMode: THandle;
begin
if combobox1.Tag<>0 then
begin
Printer.PrinterIndex := ComboBox1.ItemIndex;
Printer.GetPrinter (Device, Driver, Port, hDeviceMode);
StrCopy (s, Device);
StrCat (s, ',');
StrCat (s, Driver);
StrCat (s, ',');
StrCat (s, Port);
WriteProfileString ('windows', 'device', s);
StrCopy (s, 'windows');
SendMessage (HWND_BROADCAST, WM_WININICHANGE, 0, LongInt(@s));
end;
close;
end;
在use中加上messages