Question

当文本框在nsis安装程序中失去焦点时，我想调用一个事件，这样我就可以在调用事件时执行一个功能。

Answer 1

nsDialogs不支持此事件，您通常会使用OnChange事件来更新UI的其他部分。

如果你必须这样做，你可以使用计时器：

!include LogicLib.nsh
!include nsDialogs.nsh
Page Custom MyPageCreate
Page InstFiles

Var MyEdit
Var LastFocus

Function MyEditLostFocus
System::Call KERNEL32::GetTickCount()i.r0
SendMessage $9 ${WM_SETTEXT} 0 "STR:MyEditLostFocus, tick=$0"
FunctionEnd

Function DetectFocusTimerHack
System::Call 'USER32::GetFocus()i.r0'
${If} $0 <> $MyEdit
${AndIf} $LastFocus = $MyEdit
    Push $0
    Call MyEditLostFocus
    Pop $0
${EndIf}
StrCpy $LastFocus $0
FunctionEnd

Function MyPageCreate
nsDialogs::Create 1018
Pop $0

${NSD_CreateText} 0 30u 100% 20u "Hello"
Pop $MyEdit

${NSD_CreateText} 0 60u 100% 20u "World"
Pop $9

${NSD_CreateTimer} DetectFocusTimerHack 333
nsDialogs::Show
FunctionEnd

如何在文本框失去焦点的情况下调用事件

1 个答案: