请教，下面的代码怎么运行后，不显示窗口？

[king_2007]

请问以下的代码，编译、调试都通过后，为什么执行时，看不到窗口？

代码如下：

#include "stdafx.h"
#include <windows.h>
#include "mmsystem.h"
LRESULT CALLBACK WndProc(HWND,UINT,WPARAM,LPARAM);
    
int  WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPreInstance,PSTR szCmdLine,int iCmdShow)
{
    static TCHAR szAppName[]=TEXT("我的窗口");
    HWND hwnd;
    MSG   msg;
    WNDCLASS wndclass;
    wndclass.style=CS_HREDRAW|CS_VREDRAW;
    wndclass.lpfnWndProc =WndProc;
    wndclass.cbClsExtra =0;
    wndclass.cbWndExtra =0;
    wndclass.hInstance =hInstance;
    wndclass.hIcon =LoadIcon(NULL,IDI_APPLICATION);
    wndclass.hCursor=LoadCursor(NULL,IDC_ARROW);
    wndclass.hbrBackground =(HBRUSH)GetStockObject(WHITE_BRUSH);
    wndclass.lpszMenuName =NULL;
    wndclass.lpszClassName =szAppName;
    hwnd=CreateWindow(szAppName,TEXT("我的窗口"),WS_OVERLAPPEDWINDOW,CW_USEDEFAULT,CW_USEDEFAULT,CW_USEDEFAULT,CW_USEDEFAULT,NULL,NULL,hInstance,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 wParma,LPARAM lParma)
{
HDC hdc;
PAINTSTRUCT  ps;
RECT   rect;
switch(message)
{
case WM_CREATE:
    PlaySound(TEXT("Welcom98.wav"),NULL,SND_FILENAME|SND_ASYNC );
    return 0;
case WM_PAINT:
    hdc=BeginPaint(hwnd,&ps);
    GetClientRect(hwnd,&rect);
    DrawText(hdc,TEXT("hello,windows98"),-1,&rect,DT_SINGLELINE|DT_CENTER|DT_VCENTER);
    EndPaint(hwnd,&ps);
    return 0;
case WM_DESTROY:
    PostQuitMessage(0);
    return 0;

}

return DefWindowProc(hwnd,message,wParma,lParma);
}
 

[king_2007]

@zara 上面的代码不是我的源代码。我的源代码如下： #include "windows.h" LRESULT CALLBACK WNDFUN(HWND hWnd,UINT msg,WPARAM wparam,LPARAM lparam) { switch(msg) { case WM_PAINT: { HDC hdc=GetDC(hWnd); SetBkMode(hdc,TRANSPARENT); TextOut(hdc,20,20,"XXXXXX公司",20); DeleteDC(hdc); break; } case WM_CLOSE: { DestroyWindow(hWnd); break; } case WM_DESTROY: { PostQuitMessage(0); break; } default: return DefWindowProc(hWnd,msg,wparam,lparam); } return 0; } int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpCmdLine,int nShowCmd) { WNDCLASS wndcls; wndcls.style =CS_DBLCLKS|CS_VREDRAW|CS_HREDRAW; wndcls.lpszMenuName =NULL; wndcls.lpszClassName ="CustomWnd"; wndcls.lpfnWndProc=WNDFUN; wndcls.hInstance =GetModuleHandle(NULL); wndcls.hIcon =NULL; wndcls.hCursor =NULL; wndcls.hbrBackground =(HBRUSH)GetStockObject(LTGRAY_BRUSH); wndcls.cbClsExtra =0; wndcls.cbWndExtra =0; RegisterClass(&wndcls); HWND hwnd; hwnd=CreateWindow("CustomWnd","第一个windows窗口",WS_CAPTION|WS_OVERLAPPEDWINDOW|WS_SYSMENU,50,50,500,500,NULL,NULL,wndcls.hInstance ,NULL); ShowWindow(hwnd,SW_SHOW); UpdateWindow(hwnd); MSG msg; while(GetMessage(&msg,NULL,0,0)); { TranslateMessage(&msg); DispatchMessage(&msg); } return msg.wParam ; }

[zara]

CreateWindows() 之前，没有注册窗口类 RegisterClass()

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