创建Win32应用程序(C++)

int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpCmdLine,int nCmdShow);

#include
#include
#include
#include

LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);

WNDCLASSEX wcex;wcex.cbSize &＃61; sizeof(WNDCLASSEX);wcex.style &＃61; CS_HREDRAW | CS_VREDRAW;wcex.lpfnWndProc &＃61; WndProc;wcex.cbClsExtra &＃61; 0;wcex.cbWndExtra &＃61; 0;wcex.hInstance &＃61; hInstance;wcex.hIcon &＃61; LoadIcon(hInstance, MAKEINTRESOURCE(IDI_APPLICATION));wcex.hCursor &＃61; LoadCursor(NULL, IDC_ARROW);wcex.hbrBackground &＃61; (HBRUSH)(COLOR_WINDOW&＃43;1);wcex.lpszMenuName &＃61; NULL;wcex.lpszClassName &＃61; szWindowClass;wcex.hIconSm &＃61; LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_APPLICATION));

if (!RegisterClassEx(&wcex)){MessageBox(NULL,_T("Call to RegisterClassEx failed!"),_T("Win32 Guided Tour"),NULL);return 1;}

static TCHAR szWindowClass[] &＃61; _T("win32app");
static TCHAR szTitle[] &＃61; _T("Win32 Guided Tour Application");// The parameters to CreateWindow explained:
// szWindowClass: the name of the application
// szTitle: the text that appears in the title bar
// WS_OVERLAPPEDWINDOW: the type of window to create
// CW_USEDEFAULT, CW_USEDEFAULT: initial position (x, y)
// 500, 100: initial size (width, length)
// NULL: the parent of this window
// NULL: this application does not have a menu bar
// hInstance: the first parameter from WinMain
// NULL: not used in this application
HWND hWnd &＃61; CreateWindow(szWindowClass,szTitle,WS_OVERLAPPEDWINDOW,CW_USEDEFAULT, CW_USEDEFAULT,500, 100,NULL,NULL,hInstance,NULL
);
if (!hWnd)
{MessageBox(NULL,_T("Call to CreateWindow failed!"),_T("Win32 Guided Tour"),NULL);return 1;
}

// The parameters to ShowWindow explained:
// hWnd: the value returned from CreateWindow
// nCmdShow: the fourth parameter from WinMain
ShowWindow(hWnd,nCmdShow);
UpdateWindow(hWnd);

MSG msg;while (GetMessage(&msg, NULL, 0, 0)){TranslateMessage(&msg);DispatchMessage(&msg);}return (int) msg.wParam;

int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpCmdLine,int nCmdShow)
{WNDCLASSEX wcex;wcex.cbSize &＃61; sizeof(WNDCLASSEX);wcex.style &＃61; CS_HREDRAW | CS_VREDRAW;wcex.lpfnWndProc &＃61; WndProc;wcex.cbClsExtra &＃61; 0;wcex.cbWndExtra &＃61; 0;wcex.hInstance &＃61; hInstance;wcex.hIcon &＃61; LoadIcon(hInstance, MAKEINTRESOURCE(IDI_APPLICATION));wcex.hCursor &＃61; LoadCursor(NULL, IDC_ARROW);wcex.hbrBackground &＃61; (HBRUSH)(COLOR_WINDOW&＃43;1);wcex.lpszMenuName &＃61; NULL;wcex.lpszClassName &＃61; szWindowClass;wcex.hIconSm &＃61; LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_APPLICATION));if (!RegisterClassEx(&wcex)){MessageBox(NULL,_T("Call to RegisterClassEx failed!"),_T("Win32 Guided Tour"),NULL);return 1;}hInst &＃61; hInstance; // Store instance handle in our global variable// The parameters to CreateWindow explained:// szWindowClass: the name of the application// szTitle: the text that appears in the title bar// WS_OVERLAPPEDWINDOW: the type of window to create// CW_USEDEFAULT, CW_USEDEFAULT: initial position (x, y)// 500, 100: initial size (width, length)// NULL: the parent of this window// NULL: this application dows not have a menu bar// hInstance: the first parameter from WinMain// NULL: not used in this applicationHWND hWnd &＃61; CreateWindow(szWindowClass,szTitle,WS_OVERLAPPEDWINDOW,CW_USEDEFAULT, CW_USEDEFAULT,500, 100,NULL,NULL,hInstance,NULL);if (!hWnd){MessageBox(NULL,_T("Call to CreateWindow failed!"),_T("Win32 Guided Tour"),NULL);return 1;}// The parameters to ShowWindow explained:// hWnd: the value returned from CreateWindow// nCmdShow: the fourth parameter from WinMainShowWindow(hWnd,nCmdShow);UpdateWindow(hWnd);// Main message loop:MSG msg;while (GetMessage(&msg, NULL, 0, 0)){TranslateMessage(&msg);DispatchMessage(&msg);}return (int) msg.wParam;
}

PAINTSTRUCT ps;
HDC hdc;
TCHAR greeting[] &＃61; _T("Hello, World!");switch (message)
{
case WM_PAINT:hdc &＃61; BeginPaint(hWnd, &ps);// Here your application is laid out.// For this introduction, we just print out "Hello, World!"// in the top left corner.TextOut(hdc,5, 5,greeting, _tcslen(greeting));// End application-specific layout section.EndPaint(hWnd, &ps);break;
}

LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{PAINTSTRUCT ps;HDC hdc;TCHAR greeting[] &＃61; _T("Hello, World!");switch (message){case WM_PAINT:hdc &＃61; BeginPaint(hWnd, &ps);// Here your application is laid out.// For this introduction, we just print out "Hello, World!"// in the top left corner.TextOut(hdc,5, 5,greeting, _tcslen(greeting));// End application specific layout section.EndPaint(hWnd, &ps);break;case WM_DESTROY:PostQuitMessage(0);break;default:return DefWindowProc(hWnd, message, wParam, lParam);break;}return 0;
}