编译通过运行不通过 帮助新手看看

Question

#include<windows.h>LRESULT CALLBACK wndproc(HWND,UINT,WPARAM,LPARAM);int WINAPI WinMain(HINSTANCE hlnstance,HINSTANCE hprevlnstance,PSTR szcmdline,int iCmdShow)
{
static TCHAR szAppName[] = TEXT("HELLOWIN");
HWND hwnd;
MSG msg;
WNDCLASS wndclass;
wndclass.style;
wndclass.lpfnWndProc = wndproc;
wndclass.cbClsExtra = 0;
wndclass.cbWndExtra = 0;
wndclass.hInstance = hlnstance;
wndclass.hIcon = LoadIcon(NULL,IDI_APPLICATION);
wndclass.hCursor = LoadCursor(NULL,IDC_ARROW);
wndclass.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);
wndclass.lpszMenuName = NULL;
wndclass.lpszClassName = szAppName; RegisterClass(&wndclass);
hwnd = CreateWindow(szAppName,
                TEXT("the Hello Progran"),
                    WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
NULL,
NULL,
hlnstance,
NULL);
ShowWindow(hwnd,iCmdShow);
UpdateWindow(hwnd);
while(GetMessage(&msg,NULL,0,0))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
return msg.wParam;
}LRESULT CALLBACK wndproc(HWND hwnd,UINT message,WPARAM wparam,LPARAM lparam)
{
HDC hdc;
PAINTSTRUCT ps;
RECT rect;
switch(message)
{
case WM_CREATE:
PlaySound(TEXT("HelloWin.wav"),NULL,SND_FILENAME|SND_ASYNC);
return(0);
case WM_PAINT:
hdc = BeginPaint(hwnd,&ps);
GetClientRect(hwnd,&rect);
DrawText(hdc,TEXT("hello,Windows 98!"), -1,&rect,DT_SINGLELINE|DT_CENTER|DT_VCENTER);
EndPaint(hwnd,&ps);
return(0);
case WM_DESTROY:
PostQuitMessage(0);
return(0);
}
return DefWindowProc(hwnd,message,wparam,lparam);
}
这个是windows程序设计上第三章的例题,我照抄的，
运行时出现如下错误
--------------------Configuration: HelloWin - Win32 Debug--------------------
Linking...
LINK : fatal error LNK1104: cannot open file "Debug/HelloWin.exe"
Error executing link.exe.如何解决啊

Answer 1

应该是第一次运行的进程没有被关闭，你用任务管理器将hellowin.exe这个进程关掉看看。

Answer 2

1、上次运行由于窗口无效，进程没有关闭。2、这里设置窗口样式有误，导致并没有注册成功！
wndclass.style = CS_HREDRAW | CS_VREDRAW;下面是修正后的代码：
#include <windows.h>#pragma comment(lib,"user32.lib")
#pragma comment(lib,"Gdi32.lib")
#pragma comment(lib,"Winmm.lib")LRESULT CALLBACK wndproc(HWND,UINT,WPARAM,LPARAM);int WINAPI WinMain(HINSTANCE hlnstance,HINSTANCE hprevlnstance,PSTR szcmdline,int iCmdShow)
{
    static TCHAR szAppName[] = TEXT("HELLOWIN");
    HWND          hwnd;
    MSG           msg;
    WNDCLASS      wndclass;
    
    wndclass.style = CS_HREDRAW | CS_VREDRAW;
    wndclass.lpfnWndProc = wndproc;
    wndclass.cbClsExtra = 0;
    wndclass.cbWndExtra = 0;
    wndclass.hInstance = hlnstance;
    wndclass.hIcon = LoadIcon(NULL,IDI_APPLICATION);
    wndclass.hCursor = LoadCursor(NULL,IDC_ARROW);
    wndclass.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);
    wndclass.lpszMenuName = NULL;
    wndclass.lpszClassName = szAppName;    if (!RegisterClass(&wndclass)) 
    {
        MessageBox(NULL,TEXT("窗口注册失败！"),NULL,NULL);
        return FALSE; 
    }
    
    hwnd = CreateWindow(szAppName,
                        TEXT("the Hello Progran"),
                        WS_OVERLAPPEDWINDOW,
                        CW_USEDEFAULT,
                        CW_USEDEFAULT,
                        CW_USEDEFAULT,
                        CW_USEDEFAULT,
                        NULL,
                        NULL,
                        hlnstance,
                        NULL);
    ShowWindow(hwnd,SW_SHOWNORMAL);
    UpdateWindow(hwnd);
    while(GetMessage(&msg,NULL,0,0))
    {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }
    return msg.wParam;
}LRESULT CALLBACK wndproc(HWND hwnd,UINT message,WPARAM wparam,LPARAM lparam)
{
    HDC         hdc;
    PAINTSTRUCT ps;
    RECT        rect;
    switch(message)
    {
    case WM_CREATE:
        PlaySound(TEXT("HelloWin.wav"),NULL,SND_FILENAME|SND_ASYNC);
        return(0);
    case WM_PAINT:
        hdc = BeginPaint(hwnd,&ps);
        GetClientRect(hwnd,&rect);
        DrawText(hdc,TEXT("hello,Windows 98!"), -1,&rect,DT_SINGLELINE|DT_CENTER|DT_VCENTER);
        EndPaint(hwnd,&ps);
        return(0);
    case WM_DESTROY:
        PostQuitMessage(0);
        return(0);
    }
    return DefWindowProc(hwnd,message,wparam,lparam);
}

Answer 3

这个应该是exe文件还在执行哦，同意沙发