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发表于 2016-10-9 23:34:16
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显示全部楼层
把你想知道的值打印出来看一看不就知道了
- /* -------------------------------------------------------------------
- MyWindows.c -- 基本窗口模型
- 《Windows 程序设计(SDK)》视频教程
- --------------------------------------------------------------------*/
- #include <windows.h>
- #include <strsafe.h>
- LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
- TCHAR str_buf[2048];
- int str_buf_cnt = 0; // 统计str_buf的元素个数
- int current_location = 0; // 字符串在str_buf中的当前位置
- int str_len = 0; // 字符串长度
- int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PSTR szCmdLine, int iCmdShow)
- {
- static TCHAR szAppName[] = TEXT("MyWindows");
- HWND hwnd;
- MSG msg;
- WNDCLASS wndclass;
- wndclass.style = CS_HREDRAW | CS_VREDRAW;
- wndclass.lpfnWndProc = WndProc;
- wndclass.cbClsExtra = 0;
- wndclass.cbWndExtra = 0;
- wndclass.hInstance = hInstance;
- wndclass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
- wndclass.hCursor = LoadCursor(NULL, IDC_ARROW);
- wndclass.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);
- wndclass.lpszMenuName = NULL;
- wndclass.lpszClassName = szAppName;
- if (!RegisterClass(&wndclass))
- {
- MessageBox(NULL, TEXT("这个程序需要在 Windows NT 才能执行!"), szAppName, MB_ICONERROR);
- return 0;
- }
- hwnd = CreateWindow(szAppName,
- TEXT("鱼C工作室"),
- WS_OVERLAPPEDWINDOW,
- CW_USEDEFAULT,
- CW_USEDEFAULT,
- CW_USEDEFAULT,
- CW_USEDEFAULT,
- NULL,
- NULL,
- hInstance,
- NULL);
-
- StringCchPrintf(&str_buf[current_location], 512, L"(%d)WinMain函数中的hwnd是:%d\n", str_buf_cnt++, hwnd);
- StringCchLength(&str_buf[current_location], 512, &str_len);
- current_location += str_len;
- ShowWindow(hwnd, iCmdShow);
- UpdateWindow(hwnd);
- while (GetMessage(&msg, NULL, 0, 0))
- {
- StringCchPrintf(&str_buf[current_location], 512, L"(%d)WinMain函数中的msg是:%d\n", str_buf_cnt++, msg);
- StringCchLength(&str_buf[current_location], 512, &str_len);
- current_location += str_len;
- StringCchPrintf(&str_buf[current_location], 512, L"(%d)WinMain函数中的msg中的hwnd是:%d\n", str_buf_cnt++, msg.hwnd);
- StringCchLength(&str_buf[current_location], 512, &str_len);
- current_location += str_len;
- TranslateMessage(&msg);
- DispatchMessage(&msg);
- }
- return msg.wParam;
- }
- LRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
- {
- HDC hdc;
- PAINTSTRUCT ps;
- RECT rect;
-
-
- StringCchPrintf(&str_buf[current_location], 512, L"(%d)WndProc函数中的hwnd是:%d\n", str_buf_cnt++, hwnd);
- StringCchLength(&str_buf[current_location], 512, &str_len);
- current_location += str_len;
-
- if(str_buf_cnt >= 60) // 小心数组越界
- {
- HANDLE hFile = CreateFile(L"text.txt", GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
-
- //WriteFile(hFile, str_buf, 2048, NULL, NULL); // 这样不行,打开test.txt文件乱码
- for(int i = 0; i < 2048; i++)
- {
- if((*(UINT16 *)(&str_buf[i]) & 0xff00) == 0)
- {
- WriteFile(hFile, &str_buf[i], 1, NULL, NULL);
- }
- else
- {
- WriteFile(hFile, &str_buf[i], 2, NULL, NULL);
- }
-
- }
-
- CloseHandle(hFile);
- ExitProcess(0);
- }
- switch (message)
- {
- case WM_PAINT:
- hdc = BeginPaint(hwnd, &ps);
- GetClientRect(hwnd, &rect);
- DrawText(hdc, TEXT("大家好,这是我的第一个窗口程序!"), -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);
- }
复制代码
这是我运行的一次结果
text.zip
(423 Bytes, 下载次数: 0)
文件因为编码问题,出现了乱码,不过能看出想要的结果就行了
(0)WndProc齉pe-N剉hwnd/f |
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