unit ufrmVerIE;

interface

uses
  Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants,
  System.Classes, Vcl.Graphics,
  Vcl.Controls, Vcl.Forms, Vcl.Dialogs, umstMaster, Vcl.StdCtrls, Vcl.ComCtrls,
  Data.DB, ZAbstractRODataset, ZAbstractDataset, ZAbstractTable, ZDataset;

type
  TConsisteInscricaoEstadual = function(const Insc, UF: AnsiString)
    : Integer; stdcall;

type
  TfrmVerIE = class(TmstMaster)
    edt_IE: TEdit;
    lbl_IE: TLabel;
    lbl_UF: TLabel;
    cb_UF: TComboBox;
    btn_verificar: TButton;
    procedure FormCreate(Sender: TObject);
    procedure btn_verificarClick(Sender: TObject);
  private
  procedure WMMoving(var Msg: TWMMoving); message WM_MOVING;
    { Private declarations }
  public
    { Public declarations }
  end;

var
  frmVerIE: TfrmVerIE;

implementation

{$R *.dfm}

uses udtmSystem, System.UITypes;

procedure TfrmVerIE.btn_verificarClick(Sender: TObject);
// código que pega na dll como verificar o IE
var
  IRet: Integer;

  LibHandle: THandle;
  ConsisteInscricaoEstadual: TConsisteInscricaoEstadual;
begin
  try
    begin
      LibHandle := LoadLibrary('DllInscE32.Dll');
      if LibHandle <= HINSTANCE_ERROR then
        raise Exception.Create('Dll não carregada');

      @ConsisteInscricaoEstadual := GetProcAddress(LibHandle,
        'ConsisteInscricaoEstadual');
      if @ConsisteInscricaoEstadual = nil then
        raise Exception.Create('Entrypoint Download não encontrado na Dll');

      IRet := ConsisteInscricaoEstadual(edt_IE.Text, cb_UF.Text);
      dtmSystem.tblEstados.Locate('TX_SIGLA', cb_UF.Text, []);
      if IRet = 0 then
        MessageDlg('Inscrição válida para ' +
          dtmSystem.tblEstadosTX_NOME.AsString, mtInformation, [mbOk], 0)
      else if IRet = 1 then
        MessageDlg('Inscrição inválida para ' +
          dtmSystem.tblEstadosTX_NOME.AsString, mtError, [mbOk], 0)
      else
        MessageDlg('Parâmetros inválidos', mtError, [mbOk], 0);
      edt_IE.SetFocus;
    end;
  finally
    FreeLibrary(LibHandle);
  end;

end;

procedure TfrmVerIE.FormCreate(Sender: TObject);
begin
  inherited;
  with dtmSystem do
  begin
    qryConsulta.SQL.Text := 'SELECT * FROM SYS_ESTADOS';
    // faz uma pesquisa na tabela estados pra montar o combo box
    qryConsulta.Open;
    qryConsulta.First;
    while not qryConsulta.Eof do
    begin
      cb_UF.Items.Add(qryConsulta.FieldByName('TX_SIGLA').AsString);
      qryConsulta.Next;
    end;
    if not tblCHGEmpresa.IsEmpty then
    begin
      edt_IE.Text := tblCHGEmpresaTX_IE.AsString;
      cb_UF.Text := tblEstadosTX_SIGLA.AsString;
    end;
  end;
end;

procedure TfrmVerIE.WMMoving(var Msg: TWMMoving);
var
  workArea: TRect;
begin
  workArea := Screen.WorkareaRect;

  with Msg.DragRect^ do
  begin
    if left < workArea.left then
      OffsetRect(Msg.DragRect^, workArea.left - left, 0);

    if top < workArea.top then
      OffsetRect(Msg.DragRect^, 0, workArea.top - top);

    if Right > workArea.Right then
      OffsetRect(Msg.DragRect^, workArea.Right - Right, 0);

    if Bottom > workArea.Bottom then
      OffsetRect(Msg.DragRect^, 0, workArea.Bottom - Bottom);
  end;

end;

end.