如何在InnoSetup向导页面中读取和设置复选框的值?

时间:2012-05-07 22:32:30

标签: checkbox inno-setup pascalscript

我已使用

在InnoSetup脚本的“其他任务”页面中添加了一个复选框
[Tasks]
Name: "StartMenuEntry" ; Description: "Start my app when Windows starts" ; GroupDescription: "Windows Startup"; MinVersion: 4,4; 

我想在wpSelectTasks页面显示时初始化此复选框,并在单击Next按钮时读取值。我无法弄清楚如何访问复选框`checked'值。

function NextButtonClick(CurPageID: Integer): Boolean;

var
  SelectTasksPage : TWizardPage ;
  StartupCheckbox : TCheckbox ;

begin
Result := true ;
case CurPageID of

    wpSelectTasks :
        begin
        SelectTasksPage := PageFromID (wpSelectTasks) ;
        StartupCheckbox := TCheckbox (SelectTasksPage... { <== what goes here??? }
        StartupCheckboxState := StartupCheckbox.Checked ;
        end ;
    end ;    
end ;     

2 个答案:

答案 0 :(得分:16)

任务复选框实际上是WizardForm.TasksList复选框列表框中的项目。如果你知道他们的索引,你可以很容易地访问它们。请注意,项目可以分组(只是你的情况),每个新组也在该检查列表框中也有一个项目,所以对于你的情况,项目索引将是1:

[Setup]
AppName=TasksList
AppVersion=1.0
DefaultDirName={pf}\TasksList

[Tasks]
Name: "TaskEntry"; Description: "Description"; GroupDescription: "Group";

[code]
function NextButtonClick(CurPageID: Integer): Boolean;
begin
  Result := True;
  if CurPageID = wpSelectTasks then
  begin
    if WizardForm.TasksList.Checked[1] then
      MsgBox('First task has been checked.', mbInformation, MB_OK)
    else
      MsgBox('First task has NOT been checked.', mbInformation, MB_OK);
  end;
end;

procedure CurPageChanged(CurPageID: Integer);
begin
  if CurPageID = wpSelectTasks then
    WizardForm.TasksList.Checked[1] := False;
end;

以下说明当您有两个具有不同组的任务时,WizardForm.TasksList检查列表框的外观如何:

enter image description here

要按说明访问任务复选框,请尝试以下操作:

[Setup]
AppName=Task List
AppVersion=1.0
DefaultDirName={pf}\TasksList

[Tasks]
Name: "Task"; Description: "Task Description"; GroupDescription: "Group 1";

[code]
function NextButtonClick(CurPageID: Integer): Boolean;
var
  Index: Integer;
begin
  Result := True;
  if CurPageID = wpSelectTasks then
  begin
    Index := WizardForm.TasksList.Items.IndexOf('Task Description');
    if Index <> -1 then
    begin
      if WizardForm.TasksList.Checked[Index] then
        MsgBox('First task has been checked.', mbInformation, MB_OK)
      else
        MsgBox('First task has NOT been checked.', mbInformation, MB_OK);
    end;
  end;
end;

procedure CurPageChanged(CurPageID: Integer);
var
  Index: Integer;
begin
  if CurPageID = wpSelectTasks then
  begin
    Index := WizardForm.TasksList.Items.IndexOf('Task Description');
    if Index <> -1 then    
      WizardForm.TasksList.Checked[Index] := False;
  end;
end;   

答案 1 :(得分:0)

上面的答案很棒。给了我我需要的东西。

我有一个案例,我有一堆辅助安装程序,我使用'checkonce'选项,但我希望重新检查文件夹是否丢失(例如用户手动清除安装文件夹) ,例如

[Tasks]
Name: "InstallPython" ; Description: "Install Python"     ; Flags: checkedonce
Name: "InstallNPP"    ; Description: "Install Notepad++"  ; Flags: checkedonce

[Code]
procedure CurPageChanged(CurPageID: Integer);
var
ItemIx: Integer;

begin
    if CurPageID = wpSelectTasks then begin
        if not DirExists(ExpandConstant('{app}')) then begin
            for ItemIx := 0 to (WizardForm.TasksList.Items.Count - 1) do
                WizardForm.TasksList.Checked[ItemIx] := True;
        end
    end
end;