Question

C++ 完整窗口类

WNDCLASS wndclass;
wndclass.cbClsExtra = 0;
wndclass.cbWndExtra = 0;
wndclass.hbrBackground =
wndclass.hCursor =
wndclass.hIcon =
wndclass.hInstance =
wndclass.lpfnWndProc =
wndclass.lpszClassName = "CMainWindow";
wndclass.lpszMenuName = NULL;
wndclass.style =

空着的都是不会填的，帮忙填好了，好吧。
这个WinProc; 提示未定义。

Answer 1

WinProc是窗口消息处理的回调函数，所谓回调函数就是系统约定好了函数形式供系统调用函数，LRESULT CALLBACK WindowProc(
HWND hwnd, // handle to window
UINT uMsg, // message identifier
WPARAM wParam, // first message parameter
LPARAM lParam // second message parameter
)其实这个WinProc你可以取任何名字，只要函数定义这个形式就可以了。

Answer 2

查下msdn，上面例子很全。
WNDCLASS myclass;
myclass.cbClsExtra=0;
myclass.cbWndExtra=0;
myclass.hbrBackground=(HBRUSH)GetStockObject(BLACK_BRUSH);
myclass.hCursor=LoadCursor(NULL,IDC_CROSS);
myclass.hIcon=LoadIcon(NULL,IDI_ASTERISK);
myclass.hInstance=hInstance;
myclass.lpfnWndProc=WndProc;
myclass.lpszClassName="win2010";
myclass.lpszMenuName =NULL;
myclass.style=CS_HREDRAW |CS_VREDRAW;

Answer 3

WNDCLASSEX wcex;

wcex.cbSize = sizeof(WNDCLASSEX);

wcex.style = CS_HREDRAW | CS_VREDRAW;
wcex.lpfnWndProc = (WNDPROC)WndProc;
wcex.cbClsExtra = 0;
wcex.cbWndExtra = 0;
wcex.hInstance = hInstance;
wcex.hIcon = LoadIcon(hInstance, (LPCTSTR)IDI_MY);
wcex.hCursor = LoadCursor(NULL, IDC_ARROW);
wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
wcex.lpszMenuName = (LPCTSTR)IDC_MY;
wcex.lpszClassName = szWindowClass;
wcex.hIconSm = LoadIcon(wcex.hInstance, (LPCTSTR)IDI_SMALL);

你新建一个试试不就看见了啊

Answer 4

CreateSolidBrush(RGB(0, 0, 0));

LoadCursor(NULL,IDC_ARROW);

LoadIcon(NULL,IDI_ASTERISK);

hInstance;

WinProc;