Question

我有以下用C ++编写的代码，而不是只有一个复选框显示“ Show Title”，我希望能够为不同/更多的复选框传递多个字符串。如何为多个复选框的CreateWindowW函数提供多个字符串？并且应该在Select函数还是WndProc函数中修改CreateWindowW函数？

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编辑：这是新代码

void Select(vector<string>& ret)
{
    HINSTANCE hInstance = NULL; //NULL = the current process
    WNDCLASSW wc = { 0 };
    MSG  msg;
    wc.lpszClassName = L"Check Box";
    wc.hInstance = hInstance;
    wc.hbrBackground = GetSysColorBrush(COLOR_3DFACE);
    wc.lpfnWndProc = WndProc;
    wc.hCursor = LoadCursor(0, IDC_ARROW);

    RegisterClassW(&wc);
    CreateWindowW(wc.lpszClassName, L"Check Box",
        WS_OVERLAPPEDWINDOW | WS_VISIBLE,
        150, 150, 230, 150, 0, 0, hInstance, 0);

    while (GetMessage(&msg, NULL, 0, 0)) {

        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }
    //return (int)msg.wParam;
}
LRESULT CALLBACK WndProc(HWND hwnd, UINT msg,
    WPARAM wParam, LPARAM lParam) {

    bool checked = true;

    switch (msg) {

    case WM_CREATE:
        CreateWindowW(L"button", L"Show Title",
            WS_VISIBLE | WS_CHILD | BS_CHECKBOX,
            20, 20, 185, 35, hwnd, (HMENU)1,
            NULL, NULL);
        CheckDlgButton(hwnd, 1, BST_CHECKED);
        break;
    case WM_COMMAND:
        checked = IsDlgButtonChecked(hwnd, 1);
        if (checked) {

            CheckDlgButton(hwnd, 1, BST_UNCHECKED);
            SetWindowTextW(hwnd, L"");
        }
        else {
            CheckDlgButton(hwnd, 1, BST_CHECKED);
            SetWindowTextW(hwnd, L"Check Box");
        }
        break;
    case WM_DESTROY:

        PostQuitMessage(0);
        break;
    }
    return DefWindowProcW(hwnd, msg, wParam, lParam);
}

Answer 1

如何为CreateWindowW函数的多个复选框提供多个字符串？

CreateWindow()每次呼叫只能创建1个窗口/控件。您将必须手动分割字符串，然后为每个单独的复选框分别调用CreateWindow()。

假设您的vector<string>包含复选框字符串，则可以通过vector的{{1}}参数将lpParam传递到窗口，然后在{{ 1}}消息处理程序，例如：

CreateWindow()

设置复选框选项C ++

1 个答案: