記一次程序bug引發的電腦異常
正確程序
#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;
}
錯誤程序
#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;
}
錯誤原因
沒有保存原窗口句柄導致程序結束後無法調回原窗口。由於本程序未添加窗口功能,其結果爲除鼠標圖標外其他圖標全部消失且無法使用,執行explorer.exe無效,尚未找到除按電源鍵強制關機外的其他解決辦法。
又get到一種整瘋舍友的新方法。