我正在使用Inno Setup创建自己的安装程序。当用户卸载应用程序时,我想要删除一些文件夹。因此,我使用
以下是代码:
CurUninstallStepChanged
事件来删除文件夹,并使用npbstMarquee
样式显示"进度条"(基于Inno Setup: How to handle progress bar on [UninstallDelete] section?)。以下是代码:
procedure DeleteFolder();
var
FindRec: TFindRec;
fullPath: string;
tmpMsg: string;
StatusText: string;
deletePath: string;
begin
{ find all and delete }
UninstallProgressForm.ProgressBar.Style := npbstMarquee;
StatusText := UninstallProgressForm.StatusLabel.Caption;
UninstallProgressForm.StatusLabel.WordWrap := True;
UninstallProgressForm.StatusLabel.AutoSize := True;
fullPath := 'C:\ProgramData\TestPath';
if FindFirst(ExpandConstant(fullPath + '\*'), FindRec) then
try
repeat
if (FindRec.Attributes and FILE_ATTRIBUTE_DIRECTORY <> 0) and
(FindRec.Name <> '.') and (FindRec.Name <> '..') then begin
deletePath := AddBackslash(fullPath) + FindRec.Name;
tmpMsg := 'Deleting...' + #13#10 + deletePath;
UninstallProgressForm.StatusLabel.Caption := tmpMsg;
DelTree(deletePath, True, True, True);
end;
until
not FindNext(FindRec);
finally
UninstallProgressForm.StatusLabel.Caption := StatusText;
FindClose(FindRec);
end;
UninstallProgressForm.ProgressBar.Style := npbstNormal;
end;
{ Uninstall event }
procedure CurUninstallStepChanged(CurUninstallStep: TUninstallStep);
begin
case CurUninstallStep of
usUninstall:
begin
DeleteFolder();
end;
end;
end;
如果我逐行调试,我可以看到进度条正在运行。但是当我使用 unins000.exe
时,只有 Caption
可以显示,进度条没有显示。
我该如何修复它?