Windows程序設計書本上的創建窗口示例，手敲代碼，拿出了show，記錄一下而已~~~

一、代碼如下：

#include <tchar.h> #include <windows.h>LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int iCmdShow) {WNDCLASSEX wndclass;static LPCTSTR szAppName{_T("HelloWin")};HWND hWnd;MSG msg;wndclass.cbSize = sizeof(WNDCLASSEX);wndclass.style = CS_HREDRAW | CS_VREDRAW;wndclass.lpfnWndProc = WndProc;wndclass.cbClsExtra = 0;wndclass.cbWndExtra = 0;wndclass.hInstance = hInstance;wndclass.hIcon = LoadIcon(nullptr, IDI_APPLICATION);wndclass.hCursor = LoadCursor(nullptr, IDC_ARROW);wndclass.hbrBackground = static_cast<HBRUSH>(GetStockObject(WHITE_BRUSH));wndclass.lpszMenuName = nullptr;wndclass.lpszClassName = szAppName;wndclass.hIconSm = nullptr;RegisterClassEx(&wndclass);hWnd = CreateWindow(szAppName, // window class name_T("Windows窗口測試示例"), // window titleWS_OVERLAPPEDWINDOW, // window styleCW_USEDEFAULT, // initial x positionCW_USEDEFAULT, // initial y positionCW_USEDEFAULT, // initial x sizeCW_USEDEFAULT, // initial y sizenullptr, // parent window handlenullptr, // window menu handlehInstance, // program instance handlenullptr); // creation parametersShowWindow(hWnd, iCmdShow); // display the windowUpdateWindow(hWnd); // redraw window client areawhile (GetMessage(&msg, NULL, 0, 0) == TRUE){TranslateMessage(&msg); // translate the messageDispatchMessage(&msg); // dispatch the message}return msg.wParam; }LRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam) {HDC hdc;PAINTSTRUCT ps;RECT rect;switch (message){case WM_PAINT:hdc = BeginPaint(hwnd, &ps);GetClientRect(hwnd, &rect);SetBkMode(hdc, TRANSPARENT);DrawText(hdc, _T("Hello, 我才是內容呢!"), -1, &rect, DT_SINGLELINE | DT_CENTER | DT_VCENTER);EndPaint(hwnd, &ps);return 0;case WM_DESTROY:PostQuitMessage(0);return 0;}return DefWindowProc(hwnd, message, wParam, lParam); }

二、運行結果如下：

總結

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