17windows_17_listbox列表框

#include <windows.h>
#include <iostream>
#include "resource.h"
CHAR szText[256] = { 0 };
#define PrintLog(x) WriteConsole(g_hStdout, x, strlen(x), NULL, NULL)
HINSTANCE g_hInst = NULL; //窗口句柄
HANDLE g_hStdout = NULL; //控制台句柄
HWND g_hSingle = NULL;
HWND g_hMulti = NULL;
void OnCreate(HWND hWnd, UINT nMsg, WPARAM wParam, LPARAM lParam)
{
	g_hSingle = CreateWindow("LISTBOX", "SINGLE", WS_CHILD | WS_VISIBLE|LBS_NOTIFY/*发送LBN_SELCHANG消息需要*/,
		50, 50, 200, 400, hWnd, (HMENU)1001, g_hInst, NULL);
	g_hMulti = CreateWindow("LISTBOX", "SINGLE", WS_CHILD | WS_VISIBLE | LBS_MULTIPLESEL|LBS_NOTIFY/*发送LBN_SELCHANG消息需要*/,
		350, 50, 200, 400, hWnd, (HMENU)1002, g_hInst, NULL);
}
void OnAdd()
{
	for (int i = 0; i < 10; i++)
	{
		//添加项
		sprintf_s(szText, 256, "LISTBOX %d",i);
		SendMessage(g_hSingle, LB_ADDSTRING,
			0, (LPARAM)szText);
		SendMessage(g_hMulti, LB_ADDSTRING,
			0, (LPARAM)szText);
	}
}
void OnSelect()
{
	//设置当前选择项
	SendMessage(g_hSingle, LB_SETCURSEL, 2, 0); //和Combo一样
	//Multi，设置指定项的选择状态
	for (int i = 0; i < 10; i++)
	{
		SendMessage(g_hMulti, LB_SETSEL, TRUE, i);
	}
	//获取所有选择项的数量
	LRESULT nCount = SendMessage(g_hMulti, LB_GETSELCOUNT, 0, 0);
	if (nCount == 10)
	{
		MessageBox(NULL, "it‘s ten", "OK", MB_OK);
	}
	//获取选择项的索引号
	INT nSel[20] = { 0 };
	SendMessage(g_hMulti, LB_GETSELITEMS, 20, (LPARAM)nSel);
}
void OnCommand(HWND hWnd, UINT nMsg, WPARAM wParam, LPARAM lParam)
{
	int nNotifyCode = HIWORD(wParam);
	int nCtrlID = LOWORD(wParam);
	switch (nCtrlID)
	{
	case ID_LISTBOX_ADDITEM:
		OnAdd();
		break;
	case ID_LISTBOX_SELETEITEM:
		OnSelect();
		break;
	case 1001:
		switch (nNotifyCode)
		{
		case LBN_SELCHANGE:
			MessageBox(NULL, "LBN_SELCHANG", "LBN", MB_OK);
			break;
		}
		break;
	case 1002:
		switch (nNotifyCode)
		{
		case LBN_SELCHANGE:
			MessageBox(NULL, "LBN_SELCHANGMulti", "LBNMulti", MB_OK);
			break;
		}
		break;
	}
}
LRESULT CALLBACK WndProc(HWND hWnd, UINT nMsg, WPARAM wParam, LPARAM lParam)
{
	switch (nMsg)
	{
		//Create WM_CREATE
	case WM_CREATE:
		OnCreate(hWnd, nMsg, wParam, lParam);
		break;
		//menu use
	case WM_COMMAND:
		OnCommand(hWnd, nMsg, wParam, lParam);
		break;
	case WM_DESTROY:
		PostQuitMessage(0);
		break;
	}
	return DefWindowProc(hWnd, nMsg, wParam, lParam);
}
BOOL RegisterWnd(LPSTR pszClassName)
{
	WNDCLASSEX wce = { 0 };
	wce.cbSize = sizeof(wce);
	wce.cbClsExtra = 0;
	wce.cbWndExtra = 0;
	wce.hbrBackground = HBRUSH(COLOR_BTNFACE + 1);
	wce.hCursor = NULL;
	wce.hIcon = NULL;
	wce.hIconSm = NULL;
	wce.hInstance = g_hInst;
	wce.lpfnWndProc = WndProc;
	wce.lpszClassName = pszClassName;
	wce.lpszMenuName = NULL;
	wce.style = CS_HREDRAW | CS_VREDRAW;
	ATOM atom = RegisterClassEx(&wce);
	if (atom == NULL)
	{
		return FALSE;
	}
	else
	{
		return TRUE;
	}
}
HWND CreateWnd(LPSTR pszClassName)
{
	HMENU hMainMENU = LoadMenu(g_hInst, MAKEINTRESOURCE(IDR_MENU1));
	HWND hWnd = CreateWindowEx(0, pszClassName, "灭天", WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
		CW_USEDEFAULT, NULL, hMainMENU, g_hInst, 0);
	return hWnd;
}
void ShowWnd(HWND hWnd)
{
	ShowWindow(hWnd, SW_SHOW);
	UpdateWindow(hWnd);
}
void Msg()
{
	MSG msg = { 0 };
	while (GetMessage(&msg, NULL, 0, 0))
	{
		TranslateMessage(&msg);
		DispatchMessage(&msg);
	}
}
void ConsoleWnd()
{
	AllocConsole();
	g_hStdout = GetStdHandle(STD_OUTPUT_HANDLE);
	CHAR szText[] = "Debug start:\n";
	WriteConsole(g_hStdout, szText, strlen(szText), NULL, NULL);
}
int WINAPI WinMain(_In_ HINSTANCE hInstance, _In_opt_ HINSTANCE hPrevInstance, _In_ LPSTR lpCmdLine, _In_ int nShowCmd)
{
	g_hInst = hInstance;
	//ConsoleWnd();
	RegisterWnd("oooo");
	HWND hWnd = CreateWnd("oooo");
	ShowWnd(hWnd);
	Msg();
	return 0;
}