在Win32哪里插入主入口点 [英] Where to insert main entry point in Win32
问题描述
我是新来的.使用Visual Studio 2008 Express版.
已经在Win 32控制台中进行编程，但想在Windows中进行一些操作.
当我在Windows应用程序中创建项目时，屏幕上会预设以下代码:-
hi i''m new here. using visual studio 2008 express ed.
have been programming in win 32 console but would like to do some in windows.
when i make a project in windows application the following code is preset on the screen :-
// mynewproject.cpp : Defines the entry point for the application.
//
#include "stdafx.h"
#include "mynewproject.h"
#define MAX_LOADSTRING 100
// Global Variables:
HINSTANCE hInst; // current instance
TCHAR szTitle[MAX_LOADSTRING]; // The title bar text
TCHAR szWindowClass[MAX_LOADSTRING]; // the main window class name
// Forward declarations of functions included in this code module:
ATOM MyRegisterClass(HINSTANCE hInstance);
BOOL InitInstance(HINSTANCE, int);
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
INT_PTR CALLBACK About(HWND, UINT, WPARAM, LPARAM);
int APIENTRY _tWinMain(HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPTSTR lpCmdLine,
int nCmdShow)
{
UNREFERENCED_PARAMETER(hPrevInstance);
UNREFERENCED_PARAMETER(lpCmdLine);
// TODO: Place code here.
MSG msg;
HACCEL hAccelTable;
// Initialize global strings
LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);
LoadString(hInstance, IDC_MYNEWPROJECT, szWindowClass, MAX_LOADSTRING);
MyRegisterClass(hInstance);
// Perform application initialization:
if (!InitInstance (hInstance, nCmdShow))
{
return FALSE;
}
hAccelTable = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDC_MYNEWPROJECT));
// Main message loop:
while (GetMessage(&msg, NULL, 0, 0))
{
if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
return (int) msg.wParam;
}
//
// FUNCTION: MyRegisterClass()
//
// PURPOSE: Registers the window class.
//
// COMMENTS:
//
// This function and its usage are 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;
wcex.cbClsExtra = 0;
wcex.cbWndExtra = 0;
wcex.hInstance = hInstance;
wcex.hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_MYNEWPROJECT));
wcex.hCursor = LoadCursor(NULL, IDC_ARROW);
wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
wcex.lpszMenuName = MAKEINTRESOURCE(IDC_MYNEWPROJECT);
wcex.lpszClassName = szWindowClass;
wcex.hIconSm = LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_SMALL));
return RegisterClassEx(&wcex);
}
//
// FUNCTION: InitInstance(HINSTANCE, 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, UINT, WPARAM, LPARAM)
//
// 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;
switch (message)
{
case WM_COMMAND:
wmId = LOWORD(wParam);
wmEvent = HIWORD(wParam);
// Parse the menu selections:
switch (wmId)
{
case IDM_ABOUT:
DialogBox(hInst, MAKEINTRESOURCE(IDD_ABOUTBOX), hWnd, 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...
EndPaint(hWnd, &ps);
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
return 0;
}
// Message handler for about box.
INT_PTR CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
UNREFERENCED_PARAMETER(lParam);
switch (message)
{
case WM_INITDIALOG:
return (INT_PTR)TRUE;
case WM_COMMAND:
if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL)
{
EndDialog(hDlg, LOWORD(wParam));
return (INT_PTR)TRUE;
}
break;
}
return (INT_PTR)FALSE;
}
有人可以告诉我我的代码[int main()]进入哪里?
tnks:doh:
can someone plz tell me where my code [ int main()] goes in?
tnks :doh:
推荐答案
如果您要用C ++编写Windows程序，那么您将用困难的方式做事(这本身就是困难的方式) ，您应该使用MFC.仅，我敢打赌MFC不是内置于快速版本中的.上个世纪，您对Windows进行编程的方式已经过时了.
You''re doing things the hard way, if you want to program windows in C++ ( which is, in itself, the hard way ), you should use MFC. Only, I bet MFC is not built in to the express editions. The way you''re programming windows became obsolete last century.
tWinMain
这是您的切入点.
This is your entry point.
while(GetMessage(& msg，NULL，0，0)){if(！TranslateAccelerator(msg.hwnd，hAccelTable ，& msg)){TranslateMessage(& msg); DispatchMessage(& msg); }}
while (GetMessage(&msg, NULL, 0, 0)) { if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg)) { TranslateMessage(&msg); DispatchMessage(&msg); } }
这是程序的核心，它是一个消息循环，它将捕获消息，直到获得结束消息为止. Windows编程通过捕获消息并响应消息来进行工作，例如，当用户单击按钮或菜单项时，或者在移动表单时.
如果您使用的是快速版本，我建议对Windows应用程序使用C#，其语法非常类似于C ++，并且您会发现它可以更快地完成所有工作.否则，如果您想使用旧风格的C ++，则应该使用Charles Petzold撰写的《 Programming Windows》一书.这是当前使用Windows编程方法的Windows圣经.
This is the core of your program, a message loop that will catch messages until it gets a close message. Windows programming works by catching messages and responding to them, for example when a user clicks on a button or menu item, or when the form is moved.
If you''re using express editions, I''d suggesting using C# for windows apps, the syntax is a lot like C++, and you''ll find it a lot quicker to get anything done. Otherwise, if you want to do old style C++, you should by the book Programming Windows by Charles Petzold. That was the windows bible when this approach to windows programming was current.
在您的情况下，main()在这里:
In your case, main() is here:
int APIENTRY _tWinMain(HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPTSTR lpCmdLine,
int nCmdShow)
感谢您的快速回复:thumbsup:
thank you for the quick replies :thumbsup:
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