我准备了一个简单的脚本,在ProgressGauge
页面的wpInstalling
栏下显示图片。
但是......我需要更复杂的功能。
我需要的是多个图像显示,每个图像显示X(例如7)秒(安装时的循环时间长于X秒*图像数量)或每次安装后X(例如10%)。我试图在ProgressGauge.Position
中嵌入图像显示,但我失败了。
这就是我所拥有的:
procedure CurPageChanged(CurPageID: Integer);
var
BmpFile: TBitmapImage;
begin
ExtractTemporaryFile('01.bmp');
ExtractTemporaryFile('02.bmp');
ExtractTemporaryFile('03.bmp');
if CurPageID = wpInstalling then
begin
BmpFile:= TBitmapImage.Create(WizardForm);
BmpFile.Bitmap.LoadFromFile(ExpandConstant('{tmp}\01.bmp'));
BmpFile.Width:= ScaleX(420);
BmpFile.Height:= ScaleY(180);
BmpFile.Left := WizardForm.ProgressGauge.Left + ScaleX(0);
BmpFile.Top := WizardForm.ProgressGauge.Top + ScaleY(35);
// BmpFile.Parent:= WizardForm.InstallingPage;
// BmpFile:= TBitmapImage.Create(WizardForm);
// BmpFile.Bitmap.LoadFromFile(ExpandConstant('{tmp}\03.bmp'));
// BmpFile.Width:= ScaleX(420);
// BmpFile.Height:= ScaleY(400);
// BmpFile.Left := WizardForm.ProgressGauge.Left + ScaleX(0);
// BmpFile.Top := WizardForm.ProgressGauge.Top + ScaleY(35);
// BmpFile.Parent:= WizardForm.InstallingPage;
// BmpFile:= TBitmapImage.Create(WizardForm);
// BmpFile.Bitmap.LoadFromFile(ExpandConstant('{tmp}\03.bmp'));
// BmpFile.Width:= ScaleX(420);
// BmpFile.Height:= ScaleY(400);
// BmpFile.Left := WizardForm.ProgressGauge.Left + ScaleX(0);
// BmpFile.Top := WizardForm.ProgressGauge.Top + ScaleY(35);
// BmpFile.Parent:= WizardForm.InstallingPage;
end;
end;
目标是:
在wpInstalling
上应该显示X图像,每隔X秒或安装X%后显示。
答案 0 :(得分:8)
由于ProgressGauge
没有进度更改事件,并且无法处理安装应用程序消息,因此您需要使用Windows API计时器。这个计时器需要一个回调函数,你不能在Inno Setup脚本中定义,所以你需要一些外部库来为你完成这项工作。然而,InnoCallback
库可以做到这一点。
对于以下代码,将InnoCallback.dll
库复制到您的安装目录中,将此代码与Inno Setup脚本合并,并实现某种幻灯片页面转入OnSlideTimer
事件,该事件将定期调用(每秒使用当前设置)。
[Files]
Source: "InnoCallback.dll"; DestDir: "{tmp}"; Flags: dontcopy
[code]
var
TimerID: Integer;
type
TTimerProc = procedure(Wnd: HWND; Msg: UINT; TimerID: UINT_PTR;
SysTime: DWORD);
function WrapTimerProc(Callback: TTimerProc; ParamCount: Integer): LongWord;
external 'wrapcallback@files:InnoCallback.dll stdcall';
function SetTimer(hWnd: HWND; nIDEvent, uElapse: UINT;
lpTimerFunc: UINT): UINT; external 'SetTimer@user32.dll stdcall';
function KillTimer(hWnd: HWND; uIDEvent: UINT): BOOL;
external 'KillTimer@user32.dll stdcall';
procedure OnSlideTimer(Wnd: HWND; Msg: UINT; TimerID: UINT_PTR;
SysTime: DWORD);
begin
{ here you can turn your slideshow pages; use some variable to store the }
{ current index of the slide you are on, note that this procedure is called }
{ periodically each 1000 ms (see below why), so here you can also check the }
{ progress value, if you want to }
end;
procedure StartSlideTimer;
var
TimerCallback: LongWord;
begin
TimerCallback := WrapTimerProc(@OnSlideTimer, 4);
{ third parameter here is the timer's timeout value in milliseconds }
TimerID := SetTimer(0, 0, 1000, TimerCallback);
end;
procedure KillSlideTimer;
begin
if TimerID <> 0 then
begin
if KillTimer(0, TimerID) then
TimerID := 0;
end;
end;
function InitializeSetup: Boolean;
begin
Result := True;
TimerID := 0;
end;
procedure DeinitializeSetup;
begin
KillSlideTimer;
end;
procedure CurPageChanged(CurPageID: Integer);
begin
if CurPageID = wpInstalling then
StartSlideTimer
else
KillSlideTimer;
end;
答案 1 :(得分:2)
为什么不在每个文件条目上使用AfterInstall来更改图像?