innosetup如何在执行卸载程序时等待卸载完成再进行下一步
时间: 2024-03-13 13:48:00 浏览: 144
在 Inno Setup 中,可以使用 `WaitUntilWizardIdle` 函数等待卸载程序完成。具体步骤如下:
1. 在卸载程序的 `[UninstallRun]` 部分添加一个 `WaitUntilExit` 参数,以等待卸载程序完成。例如:
```
[UninstallRun]
Filename: "{app}\uninstall.exe"; Parameters: "/SILENT"; WaitUntilExit: yes
```
2. 在使用 `WaitUntilWizardIdle` 函数的地方添加等待卸载程序完成的代码。例如:
```
function NextButtonClick(CurPageID: Integer): Boolean;
begin
if CurPageID = wpReady then
begin
// Wait until the uninstaller is finished before proceeding
WaitUntilWizardIdle;
end;
Result := True;
end;
```
在这个例子中,`NextButtonClick` 函数会在用户点击“下一步”按钮时被调用。在页面 ID 为 `wpReady` 的页面上,我们使用 `WaitUntilWizardIdle` 函数等待卸载程序完成,然后才允许用户继续下一步。
注意,使用 `WaitUntilWizardIdle` 函数会阻塞当前线程,直到所有的向导页面都处于空闲状态。如果你需要在等待卸载程序完成期间执行其他任务,可以将等待代码放在另一个线程中。
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