Delphi打开软键盘osk.exe

开发环境Delphi XE11.3

Unit

unit Unit1;

interface

uses
  Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
  Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, winapi.ShellAPI, ShlObj, TLHelp32;

type
  TForm1 = class(TForm)
    Button1: TButton;
    Button2: TButton;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

function FindProcess(AFileName:string):boolean;
var
  hSnapshot:THandle;
  lppe:TProcessEntry32;
  Found:Boolean;
begin
  Result:=False;
  hSnapshot:=CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS,0);
  lppe.dwSize:=SizeOf(TProcessEntry32);
  Found:=Process32First(hSnapshot,lppe);
  while Found do
  begin
    if(lppe.szExeFile = AFileName) then Result:=True;
    Found:=Process32Next(hSnapshot,lppe);
  end;
end;

procedure TForm1.Button1Click(Sender: TObject);
var
  vWinDir: array[0..255] of Char;
  vSysDir: array[0..255] of Char;
  vPathStr, vWinDirStr, vSysDirStr: string;
begin
  GetWindowsDirectory(vWinDir, 256);
  GetSystemDirectory(vSysDir, 256);
  vSysDirStr  := StrPas(vSysDir);

  if FileExists(vSysDirStr+'\osk.exe') then
    vPathStr := vSysDirStr+'\osk.exe'
  else
  begin
    vWinDirStr  := StrPas(vWinDir);
    vPathStr := vWinDirStr+'\SysNative\osk.exe';
  end;
  ShellExecute(0, 'open', PChar(vPathStr), nil, nil, SW_SHOWNORMAL);
end;

procedure TForm1.Button2Click(Sender: TObject);
begin
  if FindProcess('osk.exe') then
    MessageBox(0, PChar('软键盘已运行'), PChar('提示'), MB_OK);
end;



end.

object Form1: TForm1
  Left = 0
  Top = 0
  Caption = 'Form1'
  ClientHeight = 174
  ClientWidth = 308
  Color = clBtnFace
  Font.Charset = DEFAULT_CHARSET
  Font.Color = clWindowText
  Font.Height = -12
  Font.Name = 'Segoe UI'
  Font.Style = []
  Position = poScreenCenter
  TextHeight = 15
  object Button1: TButton
    Left = 104
    Top = 32
    Width = 75
    Height = 25
    Caption = 'Button1'
    TabOrder = 0
    OnClick = Button1Click
  end
  object Button2: TButton
    Left = 104
    Top = 96
    Width = 75
    Height = 25
    Caption = 'Button2'
    TabOrder = 1
    OnClick = Button2Click
  end
end