[Оглавление] [1] [2] [3] [4] [5] [6] [7]
GetSystemDefaultLCID
GetLocaleInfo
procedure FlushIni(FileName: string);
var
{$IFDEF WIN32}
CFileName: array[0..MAX_PATH] of WideChar;
{$ELSE}
CFileName: array[0..127] of Char;
{$ENDIF}
begin
{$IFDEF WIN32}
if (Win32Platform = VER_PLATFORM_WIN32_NT) then
WritePrivateProfileStringW(nil, nil, nil, StringToWideChar(FileName,
CFileName, MAX_PATH))
else
WritePrivateProfileString(nil, nil, nil, PChar(FileName));
{$ELSE}
WritePrivateProfileString(nil, nil, nil, StrPLCopy(CFileName,
FileName, SizeOf(CFileName) - 1));
{$ENDIF}
end;
unit PortInfo;
interface
uses Windows, SysUtils, Classes, Registry;
function EnumModems : TStrings;
implementation
function EnumModems : TStrings;
var
R : TRegistry;
s : ShortString;
N : TStringList;
i : integer;
j : integer;
begin
Result:= TStringList.Create;
R:= TRegistry.Create;
try
with R do begin
RootKey:= HKEY_LOCAL_MACHINE;
if OpenKey('\System\CurrentControlSet\Services\Class\Modem', False) then
if HasSubKeys then begin
N:= TStringList.Create;
try
GetKeyNames(N);
for i:=0 to N.Count - 1 do begin
OpenKey(N[i], False);
s:= ReadString('AttachedTo');
for j:=1 to 4 do
if Pos(Chr(j+Ord('0')), s) > 0 then
Break;
Result.AddObject(ReadString('DriverDesc'),TObject(j));
CloseKey;
end;
finally
N.Free;
end;
end;
end;
finally
R.Free;
end;
end;
end.
bt := TBitmap.Create;
bt.Width := gr.Width;
bt.Height := gr.Height;
bt.Canvas.CopyRect(ClientRect, gr.Canvas, gr.ClientRect);
bt.SaveToFile('e:\bt.bmp');
bt.Free;
(gr - объект, в канве которого я рисую с помощью OpenGL)
procedure ShowAlmostModal(FormModal:TForm); begin NavigatorForm.Enabled:=false; FormModal.ShowModal end;И вот это пpивесь на OnShow почти модальной фоpмы
procedure FormShow(Sender:Tobject); begin NavigatorForm.Enabled:=true; end;
p.s. файл RUS можно подставлять и убирать по вкусу.
unit edit1;
interface
uses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
StdCtrls;
type
TPopupListbox = class(TCustomListbox)
protected
procedure CreateParams(var Params: TCreateParams); override;
procedure CreateWnd; override;
procedure MouseUp(Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
override;
end;
TTestDropEdit = class(TEdit)
private
FPickList: TPopupListbox;
procedure CMCancelMode(var Message: TCMCancelMode); message CM_CancelMode;
procedure WMKillFocus(var Message: TMessage); message WM_KillFocus;
protected
procedure CloseUp(Accept: Boolean);
procedure DropDown;
procedure WndProc(var Message: TMessage); override;
public
constructor Create(Owner: TComponent); override;
destructor Destroy; override;
end;
implementation
procedure TPopupListBox.CreateParams(var Params: TCreateParams);
begin
inherited;
with Params do begin
Style := Style or WS_BORDER;
ExStyle := WS_EX_TOOLWINDOW or WS_EX_TOPMOST;
WindowClass.Style := CS_SAVEBITS;
end;
end;
procedure TPopupListbox.CreateWnd;
begin
inherited CreateWnd;
Windows.SetParent(Handle, 0);
CallWindowProc(DefWndProc, Handle, WM_SETFOCUS, 0, 0);
end;
procedure TPopupListbox.MouseUp(Button: TMouseButton; Shift: TShiftState;
X, Y: Integer);
begin
inherited MouseUp(Button, Shift, X, Y);
TTestDropEdit(Owner).CloseUp((X >= 0) and (Y >= 0) and (X < Width) and (Y <
Height));
end;
{ TTestDropEdit }
constructor TTestDropEdit.Create(Owner: TComponent);
begin
inherited Create(Owner);
Parent := Owner as TWinControl;
FPickList := TPopupListbox.Create(nil);
FPickList.Visible := False;
FPickList.Parent := Self;
FPickList.IntegralHeight := True;
FPickList.ItemHeight := 11;
FPickList.Items.CommaText :='1,2,3,4,5,6,7,8,9,0';
end;
destructor TTestDropEdit.Destroy;
begin
FPickList.Free;
inherited;
end;
procedure TTestDropEdit.CloseUp(Accept: Boolean);
begin
if FPickList.Visible then begin
if GetCapture <> 0 then SendMessage(GetCapture, WM_CANCELMODE, 0, 0);
SetWindowPos(FPickList.Handle, 0, 0, 0, 0, 0, SWP_NOZORDER or
SWP_NOMOVE or SWP_NOSIZE or SWP_NOACTIVATE or SWP_HIDEWINDOW);
if FPickList.ItemIndex <> -1 then
Text := FPickList.Items.Strings[FPickList.ItemIndex];
FPickList.Visible := False;
Invalidate;
end;
end;
procedure TTestDropEdit.DropDown;
var
P: TPoint;
I,J,Y: Integer;
begin
if Assigned(FPickList) and (not FPickList.Visible) then begin
FPickList.Width := Width;
FPickList.Color := Color;
FPickList.Font := Font;
FPickList.Height := 6 * FPickList.ItemHeight + 4;
FPickList.ItemIndex := FPickList.Items.IndexOf(Text);
P := Parent.ClientToScreen(Point(Left, Top));
Y := P.Y + Height;
if Y + FPickList.Height > Screen.Height then Y := P.Y - FPickList.Height;
SetWindowPos(FPickList.Handle, HWND_TOP, P.X, Y, 0, 0,
SWP_NOSIZE or SWP_NOACTIVATE or SWP_SHOWWINDOW);
FPickList.Visible := True;
Invalidate;
Windows.SetFocus(Handle);
end;
end;
procedure TTestDropEdit.CMCancelMode(var Message: TCMCancelMode);
begin
if (Message.Sender <> Self) and (Message.Sender <> FPickList) then
CloseUp(False);
end;
procedure TTestDropEdit.WMKillFocus(var Message: TMessage);
begin
inherited;
CloseUp(False);
end;
procedure TTestDropEdit.WndProc(var Message: TMessage);
procedure DoDropDownKeys(var Key: Word; Shift: TShiftState);
begin
case Key of
VK_UP, VK_DOWN:
if ssAlt in Shift then begin
if FPickList.Visible then CloseUp(True) else DropDown;
Key := 0;
end;
VK_RETURN, VK_ESCAPE:
if FPickList.Visible and not (ssAlt in Shift) then begin
CloseUp(Key = VK_RETURN);
Key := 0;
end;
end;
end;
begin
case Message.Msg of
WM_KeyDown, WM_SysKeyDown, WM_Char:
with TWMKey(Message) do begin
DoDropDownKeys(CharCode, KeyDataToShiftState(KeyData));
if (CharCode <> 0) and FPickList.Visible then begin
with TMessage(Message) do
SendMessage(FPickList.Handle, Msg, WParam, LParam);
Exit;
end;
end
end;
inherited;
end;
end.
Под Win16 Вы можете использовать функцию SpoolFile, или Passthrough escape, если принтер поддерживает последнее. Под Win32 Вы можете использовать WritePrinter.
Ниже пример открытия принтера и записи чистого потока данных в принтер. Учтите, что Вы должны передать корректное имя принтера, такое, как "HP LaserJet 5MP", чтобы функция сработала успешно.
Конечно, Вы можете включать в поток данных любые необходимые управляющие коды, которые могут потребоваться.
uses WinSpool;
procedure WriteRawStringToPrinter(PrinterName:String; S:String);
var
Handle: THandle;
N: DWORD;
DocInfo1: TDocInfo1;
begin
if not OpenPrinter(PChar(PrinterName), Handle, nil) then
begin
ShowMessage('error ' + IntToStr(GetLastError));
Exit;
end;
with DocInfo1 do begin
pDocName := PChar('test doc');
pOutputFile := nil;
pDataType := 'RAW';
end;
StartDocPrinter(Handle, 1, @DocInfo1);
StartPagePrinter(Handle);
WritePrinter(Handle, PChar(S), Length(S), N);
EndPagePrinter(Handle);
EndDocPrinter(Handle);
ClosePrinter(Handle);
end;
procedure TForm1.Button1Click(Sender: TObject);
begin
WriteRawStringToPrinter('HP', 'Test This');
end;
Посмотри и доделай как тебе надо.
unit TextPrinter;
interface
uses
Windows, Controls, Forms, Dialogs;
type
TTextPrinter = class(TObject)
FNumberOfBytesWritten: Integer;
FHandle: THandle;
FPrinterOpen: Boolean;
FErrorString: PChar;
procedure SetErrorString;
public
constructor Create;
procedure Write(const Str: string);
procedure WriteLn(const Str: string);
destructor Destroy; override;
published
property NumberOfBytesWritten: Integer read FNumberOfBytesWritten;
end;
implementation
{TTextPrinter}
constructor TTextPrinter.Create;
begin
FHandle := CreateFile('LPT1', GENERIC_READ or GENERIC_WRITE, FILE_SHARE_READ
or FILE_SHARE_WRITE, nil, OPEN_EXISTING, 0, 0);
if FHandle = INVALID_HANDLE_VALUE then
begin
SetErrorString;
raise Exception.Create(FErrorString);
end
else
FPrinterOpen := True;
end;
procedure TTextPrinter.SetErrorString;
begin
if FErrorString <> nil then
LocalFree(Integer(FErrorString));
FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER or FORMAT_MESSAGE_FROM_SYSTEM,
nil,
GetLastError(),
LANG_USER_DEFAULT,
@FErrorString,
0,
nil);
end;
procedure TTextPrinter.Write(const Str: string);
var
OEMStr: PChar;
NumberOfBytesToWrite: Integer;
begin
if not FPrinterOpen then
Exit;
NumberOfBytesToWrite := Length(Str);
OEMStr := PChar(LocalAlloc(LMEM_FIXED, NumberOfBytesToWrite + 1));
try
CharToOem(PChar(Str), OEMStr);
if not WriteFile(FHandle, OEMStr^, NumberOfBytesToWrite,
FNumberOfBytesWritten, nil) then
begin
SetErrorString;
raise Exception.Create(FErrorString);
end;
finally
LocalFree(Integer(OEMStr));
end;
end;
procedure TTextPrinter.WriteLn(const Str: string);
begin
Self.Write(Str);
Self.Write(#10);
end;
destructor TTextPrinter.Destroy;
begin
CloseHandle(FHandle);
if FErrorString <> nil then
LocalFree(Integer(FErrorString));
end;
end.
P.S. В принципе, вместо LPT1 может стоять что угодно, даже сетевой
сервер печати (\\server\prn) - все равно печатает. Можно и параметр
в конструктор вставить и т.д.
SetWindowRgn -
HRGN rgn := CreateEllipticRgn( 10,10,100,100 );
SetWindowRgn( hMyWnd,rgn ); // Вот и будет круглое окно
При этом регион этот теперь используется Windows и будет уничтожен при
закрытии окна.
Попpобуйте вот этот обpаботчик OnCreate
procedure TForm1.FormCreate(Sender: TObject);
const W=36*pi/180;
var R,R1,R2: HRgn; X,Y,i:integer;
function S(A:integer;R:integer):integer;
begin
Result:=round(R*sin(W*a));
end;
function C(A:integer;R:integer):integer;
begin
Result:=round(R*cos(W*a));
end;
function GetStarReg(X,Y,R:integer):HRGN;
var P : array [0..4] of TPoint;
begin
P[0] := Point(X, Y-R);
P[1] := Point(X-S(4,R), Y-C(4,R));
P[2] := Point(X-S(8,R), Y-C(8,R));
P[3] := Point(X-S(2,R), Y-C(2,R));
P[4] := Point(X-S(6,R), Y-C(6,R));
Result := CreatePolygonRgn(P, 5, WINDING);
end;
begin
X:=Width div 2;
Y:=Height div 2;
R:=GetStarReg(X,Y,100);
i:=1;
repeat
R1:=GetStarReg(X-S(i,120),Y-C(i,110),40);
CombineRgn(R,R,R1,RGN_OR);
inc(i,2);
until i>9;
R1:=GetStarReg(X,Y,30);
CombineRgn(R,R,R1,RGN_DIFF);
R1:=CreateEllipticRgn(3,3,Width-6,Height-6);
R2:=CreateEllipticRgn(20,10,Width-20,Height-10);
CombineRgn(R1,R1,R2,RGN_DIFF);
CombineRgn(R,R,R1,RGN_OR);
SetWindowRgn(Handle, R, True);
end;
А дело было так :
interface
type
TMyComp = class(TWinControl)
...
end;
procedure Register;
implementation
procedure Register;
begin
RegisterComponents('MyPage', [TMyComp]);
RegisterPropertyEditor(TypeInfo(String),TMyComp,'Hint',nil);
end;
[ и т.д.]
Тепеpь property 'Hint' в Object Inspector не видно.
Рад, если чем-то помог. Если будут глюки, умоляю сообшить. Такой подход
у меня сплошь и pядом.
type
PNetResourceArray = ^TNetResourceArray;
TNetResourceArray =
array[0..MaxInt div SizeOf(TNetResource) - 1] of TNetResource;
Procedure EnumResources(LpNR:PNetResource);
Var
NetHandle: THandle;
BufSize: Integer;
Size: Integer;
NetResources: PNetResourceArray;
Count: Integer;
NetResult:Integer;
I: Integer;
NewItem:TListItem;
Begin
If WNetOpenEnum(
RESOURCE_GLOBALNET,
RESOURCETYPE_ANY,
// RESOURCETYPE_ANY - все ресурсы
// RESOURCETYPE_DISK - диски
// RESOURCETYPE_PRINT - принтеры
0,
LpNR,
NetHandle) <> NO_ERROR then Exit;
Try
BufSize := 50 * SizeOf(TNetResource);
GetMem(NetResources, BufSize);
Try
while True do
begin
Count := -1;
Size := BufSize;
NetResult := WNetEnumResource(NetHandle, Count, NetResources, Size);
If NetResult = ERROR_MORE_DATA then
begin
BufSize := Size;
ReallocMem(NetResources, BufSize);
Continue;
end;
if NetResult <> NO_ERROR then Exit;
For I := 0 to Count-1 do
Begin
With NetResources^[I] do
Begin
If RESOURCEUSAGE_CONTAINER =
(DwUsage and RESOURCEUSAGE_CONTAINER) then
EnumResources(@NetResources^[I]);
If dwDisplayType = RESOURCEDISPLAYTYPE_SHARE Then
// ^^^^^^^^^^^^^^^^^^^^^^^^^ - ресурс
// RESOURCEDISPLAYTYPE_SERVER - компьютер
// RESOURCEDISPLAYTYPE_DOMAIN - рабочая группа
// RESOURCEDISPLAYTYPE_GENERIC - сеть
Begin
NewItem:= Form1.ListView1.Items.Add;
NewItem.Caption:=LpRemoteName;
End;
End;
End
End;
finally
FreeMem(NetResources, BufSize);
end;
finally
WNetCloseEnum(NetHandle);
end;
End;
procedure TForm1.Button1Click(Sender: TObject);
Var
OldCursor: TCursor;
begin
OldCursor:= Screen.Cursor;
Screen.Cursor:= crHourGlass;
With ListView1.Items do
Begin
BeginUpdate;
Clear;
EnumResource(nil);
EndUpdate;
End;
Screen.Cursor:= OldCursor;
end;