// enmuwindows.cpp : Defines the entry point for the application.
//

#include "stdafx.h"
#include "resource.h"

#define MAX_LOADSTRING 100
#define IDC_BUTTON 11
// Global Variables:
HINSTANCE hInst;								// current instance
TCHAR szTitle[MAX_LOADSTRING];								// The title bar text
TCHAR szWindowClass[MAX_LOADSTRING];								// The title bar text
HWND hwndList;
//	static int num;//统计窗口个数
	static HWND hwnd_parent;//父窗口句柄

// Foward declarations of functions included in this code module:
ATOM				MyRegisterClass(HINSTANCE hInstance);
BOOL				InitInstance(HINSTANCE, int);
LRESULT CALLBACK	WndProc(HWND, UINT, WPARAM, LPARAM);
LRESULT CALLBACK	About(HWND, UINT, WPARAM, LPARAM);
BOOL CALLBACK EnumWindowsProc(HWND,LPARAM);//回调函数原型


int APIENTRY WinMain(HINSTANCE hInstance,
                     HINSTANCE hPrevInstance,
                     LPSTR     lpCmdLine,
                     int       nCmdShow)
{
//	hwnd_parent=GetDesktopWindow();
	hwnd_parent=FindWindow(NULL,TEXT("SysListView32"));
 	// TODO: Place code here.
	MSG msg;
	HACCEL hAccelTable;

	// Initialize global strings
	LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);
	LoadString(hInstance, IDC_ENMUWINDOWS, szWindowClass, MAX_LOADSTRING);
	MyRegisterClass(hInstance);

	// Perform application initialization:
	if (!InitInstance (hInstance, nCmdShow)) 
	{
		return FALSE;
	}

	hAccelTable = LoadAccelerators(hInstance, (LPCTSTR)IDC_ENMUWINDOWS);

	// Main message loop:
	while (GetMessage(&msg, NULL, 0, 0)) 
	{
		if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg)) 
		{
			TranslateMessage(&msg);
			DispatchMessage(&msg);
		}
	}

	return msg.wParam;
}



//
//  FUNCTION: MyRegisterClass()
//
//  PURPOSE: Registers the window class.
//
//  COMMENTS:
//
//    This function and its usage is only necessary if you want this code
//    to be compatible with Win32 systems prior to the 'RegisterClassEx'
//    function that was added to Windows 95. It is important to call this function
//    so that the application will get 'well formed' small icons associated
//    with it.
//
ATOM MyRegisterClass(HINSTANCE hInstance)
{
	WNDCLASSEX wcex;

	wcex.cbSize = sizeof(WNDCLASSEX); 

	wcex.style			= CS_HREDRAW | CS_VREDRAW;
	wcex.lpfnWndProc	= (WNDPROC)WndProc;
	wcex.cbClsExtra		= 0;
	wcex.cbWndExtra		= 0;
	wcex.hInstance		= hInstance;
	wcex.hIcon			= LoadIcon(hInstance, (LPCTSTR)IDI_ENMUWINDOWS);
	wcex.hCursor		= LoadCursor(NULL, IDC_ARROW);
	wcex.hbrBackground	= (HBRUSH)(COLOR_WINDOW+1);
	wcex.lpszMenuName	= (LPCSTR)IDC_ENMUWINDOWS;
	wcex.lpszClassName	= szWindowClass;
	wcex.hIconSm		= LoadIcon(wcex.hInstance, (LPCTSTR)IDI_SMALL);

	return RegisterClassEx(&wcex);
}

//
//   FUNCTION: InitInstance(HANDLE, int)
//
//   PURPOSE: Saves instance handle and creates main window
//
//   COMMENTS:
//
//        In this function, we save the instance handle in a global variable and
//        create and display the main program window.
//
BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
{
   HWND hWnd;

   hInst = hInstance; // Store instance handle in our global variable

   hWnd = CreateWindow(szWindowClass, szTitle, WS_OVERLAPPEDWINDOW,
      CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, hInstance, NULL);

   if (!hWnd)
   {
      return FALSE;
   }

   ShowWindow(hWnd, nCmdShow);
   UpdateWindow(hWnd);

   return TRUE;
}


//
//  FUNCTION: WndProc(HWND, unsigned, WORD, LONG)
//
//  PURPOSE:  Processes messages for the main window.
//
//  WM_COMMAND	- process the application menu
//  WM_PAINT	- Paint the main window
//  WM_DESTROY	- post a quit message and return
//
//
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
	int wmId, wmEvent;
	PAINTSTRUCT ps;
	HDC hdc;
	TCHAR szHello[MAX_LOADSTRING];
	LoadString(hInst, IDS_HELLO, szHello, MAX_LOADSTRING);
    HWND hbutton;
	TCHAR szCaption[MAX_PATH]={0};
	TCHAR szSelect[10]={0};
	int index=0;
	HWND g_hwnd;
	static HWND hwndCombobox;
	switch (message) 
	{
	case WM_CREATE:
		//创建窗口列表
		hwndList=CreateWindow(TEXT("combobox"),TEXT("my app"),WS_CHILD|WS_VISIBLE|LBS_STANDARD,
   0,0,300,100,hWnd,(HMENU)10,(HINSTANCE)GetWindowLong(hWnd,GWL_HINSTANCE),NULL);
		hwndCombobox=CreateWindow(TEXT("combobox"),TEXT("my app"),WS_CHILD|WS_VISIBLE|LBS_STANDARD,
   320,0,200,100,hWnd,(HMENU)12,(HINSTANCE)GetWindowLong(hWnd,GWL_HINSTANCE),NULL);
		//添加执行按钮
		hbutton=CreateWindow(TEXT("button"),TEXT("执行"),WS_CHILD|WS_VISIBLE,
   550,0,50,25,hWnd,(HMENU)11,(HINSTANCE)GetWindowLong(hWnd,GWL_HINSTANCE),NULL);
		//窗口行为选择
		SendMessage(hwndCombobox,CB_ADDSTRING,0,(LPARAM)TEXT("最大化"));
		SendMessage(hwndCombobox,CB_ADDSTRING,0,(LPARAM)TEXT("最小化"));
		SendMessage(hwndCombobox,CB_ADDSTRING,0,(LPARAM)TEXT("隐藏"));
		SendMessage(hwndCombobox,CB_ADDSTRING,0,(LPARAM)TEXT("关闭"));
		break;
		case WM_COMMAND:
			wmId    = LOWORD(wParam); 
			wmEvent = HIWORD(wParam); 
			// Parse the menu selections:
			switch (wmId)
			{
			case IDC_BUTTON:
				//MessageBox(hWnd,"a","b",0);
				index=SendMessage(hwndList,CB_GETCURSEL,0,0);
				SendMessage(hwndList,CB_GETLBTEXT,(WPARAM)index,(LPARAM)szCaption);
				g_hwnd=FindWindow(NULL,szCaption);
				SendMessage(hwndCombobox,CB_GETLBTEXT,(WPARAM)SendMessage(hwndCombobox,CB_GETCURSEL,0,0),(LPARAM)szSelect);
				if(!lstrcmp(szSelect,TEXT("最大化")))
				{
					InvalidateRect(g_hwnd,NULL,FALSE);
					ShowWindow(g_hwnd,SW_NORMAL);
				ShowWindow(g_hwnd,SW_MAXIMIZE);
				UpdateWindow(g_hwnd);
				//ShowWindow(hwnd,SW_MAXIMIZE);
				}
				else if(!lstrcmp(szSelect,TEXT("最小化")))
				{
				ShowWindow(g_hwnd,SW_SHOWMINIMIZED);
				}
				else if(!lstrcmp(szSelect,TEXT("隐藏")))
				{
				ShowWindow(g_hwnd,SW_HIDE);
				}
				else
				{
				SendMessage(g_hwnd,WM_CLOSE,0,0);
				}
				break;
				case IDM_ABOUT:
				   DialogBox(hInst, (LPCTSTR)IDD_ABOUTBOX, hWnd, (DLGPROC)About);
				   break;
				case IDM_EXIT:
				   DestroyWindow(hWnd);
				   break;
				default:
				   return DefWindowProc(hWnd, message, wParam, lParam);
			}
			break;
		case WM_PAINT:
			hdc = BeginPaint(hWnd, &ps);
			// TODO: Add any drawing code here...
			RECT rt;
			GetClientRect(hWnd, &rt);
			//DrawText(hdc, szHello, strlen(szHello), &rt, DT_CENTER);
			EnumWindows(EnumWindowsProc,(LPARAM)NULL); 
			EndPaint(hWnd, &ps);
			break;
		case WM_DESTROY:
			PostQuitMessage(0);
			break;
		default:
			return DefWindowProc(hWnd, message, wParam, lParam);
   }
   return 0;
}

// Mesage handler for about box.
LRESULT CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
	switch (message)
	{
		case WM_INITDIALOG:
				return TRUE;

		case WM_COMMAND:
			if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL) 
			{
				EndDialog(hDlg, LOWORD(wParam));
				return TRUE;
			}
			break;
	}
    return FALSE;
}
BOOL CALLBACK EnumWindowsProc(HWND hwnd,LPARAM lParam)
{
	if(hwnd)
	{
		TCHAR chText[MAX_PATH];
		int len;
		ZeroMemory(chText,MAX_PATH);
		len=SendMessage(hwnd,WM_GETTEXTLENGTH,0,0)+1;
		if((len>1)&&(len<MAX_PATH))
		{
			GetWindowText(hwnd,chText,sizeof(chText));
			SendMessage(hwndList,CB_ADDSTRING,0,(LPARAM)chText);
			return TRUE;
		}
	}
	return TRUE;
}

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