方法一:
C++关闭桌面,explorer.exe
#include<Windows.h>
#include <TlHelp32.h>
#include"resource.h"
#pragma warning(disable:4996)
void taskkill(const char * name)
{
HANDLE info_handle = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0); //拍摄系统中所有进程的快照
if (info_handle == INVALID_HANDLE_VALUE)
{
MessageBox(0, TEXT("获取进程句柄失败!"), TEXT("错误"), 0);
return;
}
PROCESSENTRY32W program_info;
program_info.dwSize = sizeof(PROCESSENTRY32W); //设置结构体大小
int bResult = Process32FirstW(info_handle, &program_info); //获取所有进程中第一个进程的信息
if (!bResult)
{
MessageBox(0, TEXT("获取进程句柄失败!"), TEXT("错误"), 0);
return;
}
char tmp[MAX_PATH];
HANDLE hProcess;
while (bResult)
{
wchar_t *pro_name = program_info.szExeFile;
wcstombs(tmp, pro_name, MAX_PATH);
if (!strcmp(tmp, name))
{
hProcess = OpenProcess(PROCESS_TERMINATE, FALSE, program_info.th32ProcessID);
if (hProcess) {
TerminateProcess(hProcess, 0);
CloseHandle(hProcess);//OpenProcess打开的也要关闭
}
break;
}
//获得下一个进程的进程信息
bResult = Process32Next(info_handle, &program_info);
}
CloseHandle(info_handle);//关闭句柄
}
int WINAPI WinMain(HINSTANCE h1, HINSTANCE h2, LPSTR cmd, int show)
{
taskkill("explorer.exe");
}
方法二:
C++ 一键关闭屏幕
#include <windows.h>
#include "resource.h"
LRESULT CALLBACK WindowProc( HWND hwnd, // handle to window
UINT uMsg, // message identifier
WPARAM wParam, // first message parameter
LPARAM lParam // second message parameter
);
int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
// 延时防止双击exe关闭屏幕后,又打开屏幕。关闭屏幕的消息,先于系统的双击消息;
Sleep(200);
::SendMessage(HWND_BROADCAST, WM_SYSCOMMAND, SC_MONITORPOWER, (LPARAM)2);
static TCHAR szAppName[] = TEXT("HelloWin");
WNDCLASS wndClass;
wndClass.style = CS_HREDRAW | CS_VREDRAW;
wndClass.lpfnWndProc = WindowProc;
wndClass.cbClsExtra = 0;
wndClass.cbWndExtra = 0;
wndClass.hInstance = hInstance;
wndClass.hIcon = LoadIcon(hInstance, (char*)IDI_ICON1);
wndClass.hCursor = LoadCursor(NULL, IDC_ARROW);
wndClass.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);
wndClass.lpszMenuName = NULL;
wndClass.lpszClassName = szAppName;
if (!RegisterClass(&wndClass))
{
MessageBox(NULL, TEXT("注册窗口失败!"), TEXT(""), 0);
return 0;
}
HWND hWnd = CreateWindow(szAppName, TEXT("Hello Program"),
WS_OVERLAPPEDWINDOW, 0, 0, 0, 0,
NULL, NULL, hInstance, NULL);
::SendMessage(hWnd, WM_DESTROY, 0, NULL);
return 0;
}
LRESULT CALLBACK WindowProc( HWND hwnd, // handle to window
UINT uMsg, // message identifier
WPARAM wParam, // first message parameter
LPARAM lParam // second message parameter
)
{
HDC hdc;
PAINTSTRUCT ps;
RECT rect;
switch (uMsg)
{
case WM_DESTROY:
PostQuitMessage(0);
return 0;
}
return DefWindowProc(hwnd, uMsg, wParam, lParam);
}
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