Day 4:MSDN没有内容解决方法&VS第一个Windows程序代码分析

前一阵子遇到MSDN没有内容的情况自己找到了探索方法。

下载的是MSDN离线版，但是不知道这时候是离线的。

点击 联机 -》点搜索框边上的搜索

出现以下界面


点击添加 就下载到想要的文档了。

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下面是孙鑫教程中第一个程序的代码，纯手打，检查时发现错误都修改了。

#include <windows.h>
#include <stdio.h>

LRESULT CALLBACK WinSunProc(
HWND hwnd,
UINT uMsg,
WPARAM wParam,
LPARAM lParam
);

int WINAPI WinMain(
HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR lpCmdLine,
int nCmdShow
)
{
WNDCLASS wndcls;
wndcls.cbClsExtra = 0;
wndcls.cbWndExtra = 0;
wndcls.hbrBackground = (HBRUSH)GetStockObject(BLACK_BRUSH);
wndcls.hCursor = LoadCursor(NULL, IDC_CROSS);
wndcls.hIcon = LoadIcon(NULL, IDI_ERROR);
wndcls.hInstance = hInstance;
wndcls.lpfnWndProc = WinSunProc;
wndcls.lpszClassName = "sunxin2006";
wndcls.lpszMenuName = NULL;
wndcls.style = CS_HREDRAW | CS_VREDRAW;
RegisterClass(&wndcls);

HWND hwnd;
hwmd = CreateWindow("sunxin2006", "123", WS_OVERLAPPEDWINDOW, 0, 0, 600, 400, NULL, NULL, hInstance, NULL);
ShowWindow(hwnd, SW_SHOWNORMAL);
UpdateWindow(hwnd);
MSG msg;
while (GetMessage(&msg, NULL, 0, 0))
{
TranslateMessage(&msg);
DispatchMessage(&msg);

}
return 0;
}

LRESULT CALLBACK WinSunProc(
HWND hwnd,
UINT uMsg,
WPARAM wParam,
LPARAM lParam
)
{
switch (uMsg)
{
case WM_CHAR:
char szChar[20];
sprintf(szChar, "char code is %d", wParam);
MessageBox(hwnd, szChar, "char", 0);
break;
case WM_LBUTTONDOWN:
MessageBox(hwnd; "mouse clicked", "message", 0);
HDC hdc;
hdc = GetDC(hwnd);
TextOut(hdc, 0, 50, "程序员之家", strlen("程序员之家"));
ReleaseDC(hwnd, hdc);
break;
case WM_PAINT:
HDC hDC;
PAINTSTRUCT ps;
hDC = BeginPaint(hwnd, &ps);
TextOut(hDC, 0, 0, "123", strlen("123"));
EndPaint(hwnd, &ps);
break;
case WM_CLOSE:
if (IDYES == MessageBox(hwnd, "是否真的结束？"，"message", MB_YESNO))
{
DestroyWindow(hwnd);
}
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
default:
return DefWindowProc(hwnd, uMsg, wParam, lParam);
}
return 0;
}

运行后出现以下界面





正在检查相关问题。