记一次程序bug引发的电脑异常
正确程序
#include <iostream>
#include <windows.h>
using namespace std
;
int main()
{
LPCSTR lpszDesktop
= "H";
HDESK hOld
= GetThreadDesktop(GetCurrentThreadId());
HDESK hdesk
=CreateDesktopA(lpszDesktop
,NULL,NULL,0,GENERIC_ALL
, NULL);
if ((NULL == hdesk
))
{
MessageBox(NULL, "失敗!", "測試", MB_OK
| MB_ICONERROR
);
return 1;
}
SetThreadDesktop(hdesk
);
SwitchDesktop(hdesk
);
MessageBox(NULL, "成功!", "測試", MB_OK
);
SwitchDesktop(hOld
);
CloseDesktop(hdesk
);
return 0;
}
错误程序
#include <iostream>
#include <windows.h>
using namespace std
;
int main()
{
LPCSTR lpszDesktop
= "H";
HDESK hdesk
=CreateDesktopA(lpszDesktop
,NULL,NULL,0,GENERIC_ALL
, NULL);
if ((NULL == hdesk
))
{
MessageBox(NULL, "失敗!", "測試", MB_OK
| MB_ICONERROR
);
return 1;
}
SetThreadDesktop(hdesk
);
SwitchDesktop(hdesk
);
MessageBox(NULL, "成功!", "測試", MB_OK
);
CloseDesktop(hdesk
);
return 0;
}
错误原因
没有保存原窗口句柄导致程序结束后无法调回原窗口。由于本程序未添加窗口功能，其结果为除鼠标图标外其他图标全部消失且无法使用，执行explorer.exe无效，尚未找到除按电源键强制关机外的其他解决办法。
又get到一种整疯舍友的新方法。
