如何防止在需要时显示启动屏幕？ 我应该添加一些 ISSI 代码来做到这一点吗？
这是我的代码:
#define ISSI_Splash "C:\InnoSetupProject\Images\client.bmp"
#define ISSI_Splash_T 3
#define ISSI_Splash_X 500
#define ISSI_Splash_Y 220
[Code]
function ISSI_InitializeSetup : Boolean;
begin
Result := True;
if not RegValueExists(HKLM, 'SOFTWARE\MyApp\Client', 'LocaleID') then
if MsgBox('Client does not exist', mbCriticalError, MB_OK) = IDOK then
begin
Result := False;
{ How can I prevent showing the splash screen here? }
Exit;
end
end;
#define ISSI_InitializeSetup
#define ISSI_IncludePath "C:\ISSI"
#include ISSI_IncludePath+"\_issi.isi"
最佳答案
使用 Inno Setup 6 event attributes，而不是旧版 ISSI_InitializeSetup 函数:
[Code]
<event('InitializeSetup')>
function MyInitializeSetup: Boolean;
begin
Result := True;
if not RegValueExists(HKLM, 'SOFTWARE\MyApp\Client', 'LocaleID') then
if MsgBox('Client does not exist', mbCriticalError, MB_OK) = IDOK then
begin
Result := False;
end;
end;
并删除它:
#define ISSI_InitializeSetup
MyInitializeSetup 将在 ISSI InitializeSetup 之前调用。如果它返回 False，则 ISSI 将永远不会被调用，因此不会显示启动屏幕。
查看 Event Attributes 的文档:
The implementations will be called in order of their definition except that any main implementation (=the implementation without an event attribute) will be called last.
If the event function has a return value then lazy evaluation is performed:
InitializeSetup,BackButtonClick,NextButtonClick,InitializeUninstall:
- All implementations must return True for the event function to be treated as returning True and an implementation returning False stops the calls to the other implementations.
关于installation - 当我在 Inno Setup 中需要时，如何防止显示启动屏幕？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/61061439/