要对用户隐藏页面,请使用ShouldSkipPage
事件方法。如果您在此方法中返回 True,则该页面将不会显示给用户。如果为 False,页面将照常显示。以下是如何检查安装是否为升级的示例,如果是,请跳过选择组件向导页面:
[Setup]
AppId=B75E4823-1BC9-4AC6-A645-94027A16F5A5
AppName=My Program
AppVersion=1.5
DefaultDirName={pf}\My Program
; here is the place for your [Components] section and the rest of your script
[Code]
const
UninstallKey = 'Software\Microsoft\Windows\CurrentVersion\Uninstall\{#SetupSetting("AppId")}_is1';
function IsUpgrade: Boolean;
var
Value: string;
begin
Result := (RegQueryStringValue(HKLM, UninstallKey, 'UninstallString', Value) or
RegQueryStringValue(HKCU, UninstallKey, 'UninstallString', Value)) and (Value <> '');
end;
function ShouldSkipPage(PageID: Integer): Boolean;
begin
Result := (PageID = wpSelectComponents) and IsUpgrade;
end;
您提到的另一个选项可能是禁用页面的所有控件。下一个脚本与上一个一样显示如何检查安装是否为升级,如果是,则禁用“选择组件”向导页面上的所有控件:
[Setup]
AppId=B75E4823-1BC9-4AC6-A645-94027A16F5A5
AppName=My Program
AppVersion=1.5
DefaultDirName={pf}\My Program
; here is the place for your [Components] section and the rest of your script
[Code]
const
UninstallKey = 'Software\Microsoft\Windows\CurrentVersion\Uninstall\{#SetupSetting("AppId")}_is1';
function IsUpgrade: Boolean;
var
Value: string;
begin
Result := (RegQueryStringValue(HKLM, UninstallKey, 'UninstallString', Value) or
RegQueryStringValue(HKCU, UninstallKey, 'UninstallString', Value)) and (Value <> '');
end;
procedure DisablePageControls(Page: TNewNotebookPage);
var
I: Integer;
begin
Page.Enabled := False;
for I := 0 to Page.ControlCount - 1 do
Page.Controls[I].Enabled := False;
end;
procedure InitializeWizard;
begin
if IsUpgrade then
DisablePageControls(WizardForm.SelectComponentsPage);
end;