innosetup在使用DelTree时删除文件的进度怎么显示到进度条上去
时间: 2024-03-09 14:48:14 浏览: 165
您好,感谢您的提问。在 Inno Setup 中,如果您使用 DelTree 来删除文件夹,可以使用 `ssInstall` 状态来在进度条上显示删除进度。具体方法如下:
1. 在 `[Code]` 部分定义一个函数,用于计算需要删除的文件总大小:
```pascal
function GetDeleteDirSize(const DirPath: string): Int64;
var
FindRec: TFindRec;
begin
Result := 0;
if FindFirst(ExpandConstant(DirPath + '\*'), FindRec) then
begin
try
repeat
if (FindRec.Name <> '.') and (FindRec.Name <> '..') then
begin
if FindRec.Attributes and FILE_ATTRIBUTE_DIRECTORY = FILE_ATTRIBUTE_DIRECTORY then
Result := Result + GetDeleteDirSize(DirPath + '\' + FindRec.Name)
else
Result := Result + FindRec.Size;
end;
until not FindNext(FindRec);
finally
FindClose(FindRec);
end;
end;
end;
```
2. 在 `[Code]` 部分的 `CurUninstallStepChanged` 函数中调用该函数,并使用 `ssInstall` 状态来显示删除进度:
```pascal
procedure CurUninstallStepChanged(CurUninstallStep: TUninstallStep);
var
DeleteDirSize: Int64;
begin
if CurUninstallStep = usUninstall then
begin
// 计算需要删除的文件总大小
DeleteDirSize := GetDeleteDirSize('C:\TestFolder');
// 设置最大进度
WizardForm.ProgressGauge.Max := DeleteDirSize;
// 删除文件夹
DelTree('C:\TestFolder', True, True, True);
// 显示删除进度
WizardForm.ProgressGauge.Position := DeleteDirSize;
WizardForm.ProgressGauge.State := npbsPaused;
WizardForm.ProgressGauge.State := npbsNormal;
end;
end;
```
这样设置后,`DelTree` 删除文件夹时,进度条上就会显示删除进度了。希望能对您有所帮助。
阅读全文
相关推荐


















