要使这个 Windows 文本框从 2011 年开始在 2019 年工作，必须进行哪些更改? [英] What changes have to be done to make this Windows textbox from 2011, work now, in 2019?

问题描述

要使这个 Windows 文本框从 2011 年开始在 2019 年工作，必须进行哪些更改?

What changes have to be done to make this Windows textbox from 2011, work now, in 2019?

我尝试在 this 中编译代码2011 年关于制作 C++ 文本框的问题...

#include <windows.h>

#pragma comment(linker,"/manifestdependency:\"type='win32' name='Microsoft.Windows.Common-Controls' version='6.0.0.0' processorArchitecture='x86' publicKeyToken='6595b64144ccf1df' language='*'\"")

LRESULT CALLBACK WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);

int APIENTRY WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR nCmdLine, int nCmdShow)
{
    LPTSTR windowClass = TEXT("WinApp");
    LPTSTR windowTitle = TEXT("Windows Application");
    WNDCLASSEX wcex;

    wcex.cbClsExtra = 0;
    wcex.cbSize = sizeof(WNDCLASSEX);
    wcex.cbWndExtra = 0;
    wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
    wcex.hCursor = LoadCursor(NULL, IDC_ARROW);
    wcex.hIcon = LoadIcon(NULL, IDI_APPLICATION);
    wcex.hIconSm = LoadIcon(NULL, IDI_APPLICATION);
    wcex.hInstance = hInstance;
    wcex.lpfnWndProc = WndProc;
    wcex.lpszClassName = windowClass;
    wcex.lpszMenuName = NULL;
    wcex.style = CS_HREDRAW | CS_VREDRAW;
    if (!RegisterClassEx(&wcex))
    {
        MessageBox(NULL, TEXT("RegisterClassEx Failed!"), TEXT("Error"), MB_ICONERROR);
        return EXIT_FAILURE;
    }

    HWND hWnd;

    if (!(hWnd = CreateWindow(windowClass, windowTitle, WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, NULL, NULL, hInstance, NULL)))
    {
        MessageBox(NULL, TEXT("CreateWindow Failed!"), TEXT("Error"), MB_ICONERROR);
        return EXIT_FAILURE;
    }

    HWND hWndEdit = CreateWindow(TEXT("Edit"), TEXT("test"), WS_CHILD | WS_VISIBLE | WS_BORDER, 100, 20, 140, 20, hWnd, NULL, NULL, NULL);

    ShowWindow(hWnd, nCmdShow);
    UpdateWindow(hWnd);

    MSG msg;

    while (GetMessage(&msg, NULL, 0, 0))
    {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }
    return EXIT_SUCCESS;
}

LRESULT CALLBACK WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
    switch (msg)
    {
    case WM_DESTROY:
        PostQuitMessage(EXIT_SUCCESS);
    default:
        return DefWindowProc(hWnd, msg, wParam, lParam);
    }
    return FALSE;
}

但是尝试在 Visual Studio 2019 中构建它时，我收到有关无法将t_char"转换为LPTSTR"的错误.

But trying to build it in Visual Studio 2019, I get errors about being unable to convert a "t_char" to a "LPTSTR".

那么，如何更新代码才能工作?是否可以不包含任何其他文件?

So, how do I update the code to work? And is it possible without Including any other files?

推荐答案

使用LPCTSTR代替LPTSTR:

LPCTSTR windowClass = TEXT("WinApp");
LPCTSTR windowTitle = TEXT("Windows Application");

LPTSTR 是 TCHAR *

LPCTSTR 是 const TCHAR *

TEXT("literal") 产生一个 const TCHAR [].

字符串文字是常量数据.从 C++11 开始，您不能再将字符串文字分配给指向非常量的指针.

A string literal is const data. Since C++11, you can no longer assign a string literal to a pointer-to-non-const.

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