不理解 C++ 窗口中的字符

问：

我有一个基本项目，它应该打开一个空白窗口，名称为“是”。相反，我得到了这些奇怪的外来符号。不久前，我看到其他几个人报告了同样的问题。我是 C++ 的新手，所以也许它很简单？我的 IDE 中没有任何错误，并且我正在使用 Visual Studio。

#include <windows.h>

bool running = true;

void* buffer_memory;
BITMAPINFO buffer_bitmap_info;

LRESULT CALLBACK window_callback(HWND hwnd, UINT uMSG, WPARAM wParam, LPARAM lParam) {
    LRESULT result = 0;

    switch (uMSG) {
    case WM_CLOSE:
    case WM_DESTROY: {
        running = false;
    } break;

    case WM_SIZE: {
        RECT rect;
        GetClientRect(hwnd, &rect);
        int buffer_width = rect.right - rect.left;
        int buffer_height = rect.bottom - rect.top;

        int buffer_size = buffer_width * buffer_height * sizeof(unsigned int);

        if (buffer_memory) VirtualFree(buffer_memory, 0, MEM_RELEASE);
        buffer_memory = VirtualAlloc(0, buffer_size, MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE);

        buffer_bitmap_info.bmiHeader.biSize = sizeof(buffer_bitmap_info.bmiHeader);
        buffer_bitmap_info.bmiHeader.biWidth = buffer_width;
        buffer_bitmap_info.bmiHeader.biHeight = -buffer_height;
        buffer_bitmap_info.bmiHeader.biPlanes = 1;
        buffer_bitmap_info.bmiHeader.biBitCount = 32;
        buffer_bitmap_info.bmiHeader.biCompression = BI_RGB;

    } break;

    default: {
        result = DefWindowProc(hwnd, uMSG, wParam, lParam);
    }

    }

    return result;
}

int main() {
    return WinMain(GetModuleHandle(NULL), NULL, GetCommandLineA(), SW_SHOW);
}

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nShowCmd) {
    // Create Window Class
    WNDCLASSA window_class = {};
    window_class.style = CS_HREDRAW | CS_VREDRAW;
    window_class.lpszClassName = "Game_Window_Class";
    window_class.lpfnWndProc = window_callback;

    // Register Class
    RegisterClassA(&window_class);

    // Create Window
    CreateWindowA(window_class.lpszClassName, "Yes", WS_OVERLAPPEDWINDOW | WS_VISIBLE, CW_USEDEFAULT, CW_USEDEFAULT, 1920, 1080, 0, 0, hInstance, 0);

    while (running) {
        // Input
        MSG message;
        while (PeekMessageA(&message, 0, 0, 0, PM_REMOVE)) {
            TranslateMessage(&message);
            DispatchMessageA(&message);
        }

        // Simulate

        // Render
    }

    return 0;
}

我以为名字是“是”，而不是图像上的名字。它唯一不放置符号的时间是当我使用一个字母时。