12Windows_Modeless_Dialog对话框

#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
//查找窗口处理函数
BOOL CALLBACK FindDlgProc(HWND hWnd, UINT nMsg, WPARAM wParam, LPARAM lParam)
{
	switch (nMsg)
	{
		//可以看出子窗口的创建销毁和初始化都与主窗口不同
		//1、创建用CreateDialog
		//2、初始化用WM_INITDIALOG消息
		//3、销毁用SC_COLOSE消息
		//WM_CREATE消息在这里被屏蔽了
	case WM_CREATE: //这个消息在这里没有用
		MessageBox(NULL, "Create", "WinDlg", MB_OK);
		break;
	case WM_INITDIALOG: //大量的初始化是在这里做的
		MessageBox(NULL, "WM_INITDIALOG", "WinDlg", MB_OK);
		break;
	case WM_SYSCOMMAND:{
						   switch (wParam)
						   {
						   case SC_CLOSE:
							   EndDialog(hWnd, 0);
							   break;
						   }
	}
		break;
	}
	return 0;
}
//查找函数
void Find(HWND hWnd)
{
	//创建对话框
	HWND hDlg = CreateDialog(g_hInst, MAKEINTRESOURCE(IDD_FIND), hWnd, FindDlgProc);
	//显示对话框
	ShowWindow(hDlg,SW_SHOW);
}
//OnCommand
void OnCommand(HWND hWnd, UINT nMsg, WPARAM wParam, LPARAM lParam)
{
	//获取命令ID
	int nCmdId = LOWORD(wParam);
	switch (nCmdId)
	{
	case ID_EXIT:
		PostQuitMessage(0);
		break;
	case ID_FIND:
		Find(hWnd);
		break;
	}
}
LRESULT CALLBACK WndProc(HWND hWnd, UINT nMsg, WPARAM wParam, LPARAM lParam)
{
	switch (nMsg)
	{
	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 hMenu = LoadMenu(g_hInst, MAKEINTRESOURCE(IDR_MAIN));
	HWND hWnd = CreateWindowEx(0, pszClassName, "灭天", WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
		CW_USEDEFAULT, NULL, hMenu, 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;
}