嗨,我用这个创建了一个窗口:
WNDCLASSEX WndClass = {0};
if (WndClass.cbSize == 0)
{
WndClass.cbSize = sizeof(WNDCLASSEX);
WndClass.style = CS_DBLCLKS;
WndClass.lpfnWndProc = WindowProcedure;
WndClass.cbClsExtra = 0;
WndClass.cbWndExtra = 0;
WndClass.hInstance = GetModuleHandle(NULL);
WndClass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
WndClass.hCursor = LoadCursor(NULL, IDC_ARROW);
WndClass.hbrBackground = HBRUSH(COLOR_WINDOW+1);
WndClass.lpszMenuName = NULL;
WndClass.lpszClassName = ClassName.c_str();
WndClass.hIconSm = LoadIcon( NULL, IDI_APPLICATION);
}
if (RegisterClassEx(&WndClass))
{
WindowHandle = CreateWindowEx(0, ClassName.c_str(), WindowName.c_str(), WS_OVERLAPPEDWINDOW | WS_VSCROLL | WS_HSCROLL,
CW_USEDEFAULT, CW_USEDEFAULT, Width, Height, NULL, NULL, GetModuleHandle(NULL), NULL);
if(WindowHandle)
{
ShowWindow(WindowHandle, SW_SHOWDEFAULT);
}
}
并尝试添加一个按钮。用这个:
HWND child = CreateWindowEx(0, L"BUTTON", NULL, WS_CHILD | WS_VISIBLE, n * CHILDS_OFSET, posY, GetWidth(), h, window, NULL, NULL, NULL);
执行代码后,我的窗口保持清晰,但如果我移动它或调整它的大小,按钮变得可见,可能是什么问题?
我试过:
RECT rc;
GetClientRect(window, &rc);
InvalidateRect(window, &rc, TRUE);
尝试是否window
是主窗口和按钮的句柄。