请让我修复程序中的ug

本文介绍了请让我修复程序中的ug的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述 在这个程序中我将bar[19].y - 20更改为bar[19].y + 20矩形现在变为向上移动的白板而不是向上移动的矩形。代码中的错误请告诉我？谢谢。 我尝试过： the rectangle now changes to white sheet moving upwards instead of rectangle moving upwards.What is the bug in the code please let me know?Thank you.What I have tried:#ifndef UNICODE#define UNICODE#endif #include<windows.h>#include<string.h>int px = 100, py = 100,i = 0;POINT m;LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam);void check();struct box { int x; int y; int width; }bar[20];int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE, PWSTR pCmdLine, int nCmdShow){// Register the window class.const wchar_t CLASS_NAME[] = L"Game";WNDCLASS wc = {};wc.lpfnWndProc = WindowProc;wc.hInstance = hInstance;wc.lpszClassName = CLASS_NAME;wc.hCursor = LoadCursor(NULL, IDC_ARROW);RegisterClass(&wc);// Create the window.HWND hwnd = CreateWindowEx(0, // Optional window styles.CLASS_NAME, // Window classL"Catch Me If You Can", // Window textWS_OVERLAPPEDWINDOW, // Window style// Size and positionCW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,NULL, // Parent window NULL, // MenuhInstance, // Instance handleNULL // Additional application data);if (hwnd == NULL){return 0;}ShowWindow(hwnd, nCmdShow);// Run the message loop.MSG msg = {};while (GetMessage(&msg, NULL, 0, 0)){TranslateMessage(&msg);DispatchMessage(&msg);}return 0;}void check(){GetCursorPos(&m);if (m.x <10 && m.y <10) { px = 250; py = 250; }}LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam){PAINTSTRUCT ps;HDC hdc;HBRUSH cr = CreateSolidBrush(RGB(250, 125, 50));HBRUSH wr = CreateSolidBrush(RGB(255,255,255));HBRUSH bkfill = CreateSolidBrush(RGB(230, 230, 230));HANDLE hold;HPEN pen = CreatePen(PS_NULL, 0, 1);switch (uMsg){//case WM_CREATE:case WM_DESTROY:PostQuitMessage(0);return 0;case WM_PAINT:{//InvalidateRect(hwnd, 0, TRUE);//px = 100, py = 100,i=0;hdc = BeginPaint(hwnd, &ps);SendMessage(hwnd, WM_CREATE, NULL, NULL);FillRect(hdc, &ps.rcPaint, cr);SelectObject(hdc, pen);for (i = 0; i < 20; i++){bar[i].y = 100 + i * 20;bar[i].width = 2 * (i + 1) * 150 / 20;bar[i].x = 250-bar[i].width/2; //or we could use bar[i].x = 350-(i+1)*150/20;}SelectObject(hdc, wr);Rectangle(hdc, bar[1].x, bar[1].y, bar[1].x + bar[1].width, bar[1].y - 20);while (bar[19].y != 30){SelectObject(hdc, cr);Rectangle(hdc, bar[19].x, bar[19].y--, bar[19].x + bar[19].width, bar[19].y - 20);SelectObject(hdc, wr);Rectangle(hdc, bar[19].x, bar[19].y, bar[19].x + bar[19].width, bar[19].y - 20);Sleep(4);}/*for (i = 0; i < 20; i++)Rectangle(hdc, bar[i].x, bar[i].y, bar[i].x + bar[i].width, bar[i].y + 20);*/EndPaint(hwnd, &ps);} }return DefWindowProc(hwnd, uMsg, wParam, lParam);} 推荐答案 通过该更改，您可以为矩形提供不同的签名高度，因此底线是在另一边绘制的。 如果要移动矩形，则必须更改原点的y坐标而不是高度。 播放一下Rectangle函数以更好地显示变化。With that change you give the rectangle a different signed heigth and so the bottom line is drawn on the other side.If you want to move the rectangle you must change the y-coordinate of the origin and not the heigth.Play a bit the the Rectangle function to better visualize the changes. 这篇关于请让我修复程序中的ug的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！