Question

我刚刚开始学习编程，我只是成功制作窗口。我试图创建一个STATIC文本区域，所以我确实喜欢这个。

LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
    switch (msg)
    {
    textfield = case WM_CREATE:
        CreateWindow("STATIC", "Hggggg", WS_VISIBLE | WS_CHILD | WS_BORDER, 
        1, 1, 100, 20, hwnd, 0, 0, 0);

    break;

我正在为初学者观看YouTube视频，然后我关注了视频。但不知何故，VisualStudio在＆＃34; CreateWindow＆＃34;下制作了redcurvy-underline。我真的不知道为什么。编译失败，并显示错误编号＆＃34; C2065＆＃34;，＆＃34; C2664＆＃34;。

这是我的全部代码

#include <Windows.h>

HWND windowHandle;
HWND textfield;


int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE prevInstance, PSTR cmdLine, int showCmd)
{
    WNDCLASSEX wc;

    wc.cbSize = sizeof(WNDCLASSEX);
    wc.cbClsExtra = 0;
    wc.cbWndExtra = 0;
    wc.hIconSm = 0;

    wc.hInstance = hInstance;
    wc.lpfnWndProc = WndProc;
    wc.style = CS_HREDRAW | CS_VREDRAW;
    wc.lpszClassName = L"rerere";
    wc.lpszMenuName = 0;
    wc.hCursor = LoadCursor(0, IDC_ARROW);
    wc.hIcon = LoadIcon(0, IDI_APPLICATION);
    wc.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);

    //
    RegisterClassEx(&wc);

    windowHandle = CreateWindowEx(WS_EX_ACCEPTFILES, L"rerere", L"rerere",
        (WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX ) | WS_VISIBLE, (GetSystemMetrics(SM_CXSCREEN)-300)/2, (GetSystemMetrics(SM_CYSCREEN)-300)/2, 300, 300, 0, 0, hInstance, 0);

    //

    if (windowHandle == 0)
        MessageBoxA(0, "creafjeiwa", "ERROR", 0);
    //
    ShowWindow(windowHandle, showCmd);

    //
    UpdateWindow(windowHandle);
    //
    MSG msg; 

    SecureZeroMemory(&msg, sizeof(MSG));
    int returnValue = 0;

    while ((returnValue = GetMessage(&msg, 0, 0, 0)) != 0)
    {
        if (returnValue == -1)
        {
            MessageBoxA(windowHandle, "getmessage fa", "ssss", 0);
            break;
        }

        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }

    return(int)msg.wParam;
}

LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
    switch (msg)
    {
    case WM_CREATE:

        textfield = CreateWindow("STATIC", "Hggggg", WS_VISIBLE | WS_CHILD | WS_BORDER, 1, 1, 100, 20, hwnd, 0, 0, 0);
        break;

    case WM_CLOSE:
        DestroyWindow(hwnd);
        break;

    case WM_DESTROY:
        PostQuitMessage(0);
        break;

    default:
        return DefWindowProc(hwnd, msg, wParam, lParam);

    }
}

如何创建静态文本区域？

Answer 1

您的项目是Unicode，您必须使用Unicode文本字段而不是ANSI

CreateWindow(L"STATIC", L"Hggggg", ...

所有文本字段都需要L前缀。如果使用ANSI，则使用ANSI版本的API代码。您已使用MessageBoxA完成此操作。但是，在文本的L前缀中使用Unicode函数效率更高。

CreateWindow功能无法正常工作.Visual Studio 2015

1 个答案: