单击按钮创建一个窗体？

[亚细亚]

代码如下：

#include <windows.h>
#include <stdio.h>
LRESULT CALLBACK WndProc( HWND hwnd,UINT uMsg,WPARAM wParam,LPARAM lParam);
LRESULT CALLBACK WndProc( HWND hwnd,UINT uMsg,WPARAM wParam,LPARAM lParam)
{
            HDC hDC;
            PAINTSTRUCT ps;
            char szChar[20];
            switch(uMsg)
            {
           case WM_COMMAND:
                switch(wParam)   
                 {   
                      case 1001: 
                      CreateWindow("first", "abc", WS_CHILD|WS_VISIBLE |WS_BORDER,100, 100, 200, 200, hwnd ,NULL,NULL,NULL);
                      break;  
                 }   
                break;

            case WM_CREATE:
                   CreateWindow("button","创建",WS_CHILD|WS_VISIBLE |BS_PUSHBUTTON,50,50,100,50,hwnd,NULL,NULL,NULL); 
                    break;
             case WM_CLOSE:
                 DestroyWindow(hwnd);
                break;
             case WM_DESTROY:
                PostQuitMessage(0);
                break;
             default:
                return DefWindowProc(hwnd,uMsg,wParam,lParam);
                
            }
            return 0;
}

int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpCmdLine,int nCmdShow)
{
    WNDCLASS wndcls;
    wndcls.cbClsExtra=0;
    wndcls.cbWndExtra=0;
    wndcls.hbrBackground=(HBRUSH)GetStockObject(WHITE_BRUSH);
    wndcls.hCursor=LoadCursor(NULL,IDC_CROSS);
    wndcls.hIcon=LoadIcon(NULL,IDI_APPLICATION);
    wndcls.hInstance=hInstance;
    wndcls.lpfnWndProc=WndProc;
    wndcls.lpszClassName="first";
    wndcls.lpszMenuName=NULL;
    wndcls.style=CS_HREDRAW | CS_VREDRAW;
    
    RegisterClass(&wndcls);
    HWND hwnd;
    hwnd=CreateWindow("first","您好",WS_OVERLAPPEDWINDOW,0,0,800,600,NULL,NULL,hInstance,NULL);
    ShowWindow(hwnd,SW_SHOWNORMAL);
    UpdateWindow(hwnd);
    MSG msg;
    while(GetMessage(&msg,NULL,0,0))
    {
       TranslateMessage(&msg);
       DispatchMessage(&msg);
    }
    return 0;
}

我想单击"创建"按钮，如何弹出一个类似主窗体的窗体？

[waizqfor]

CreateWindow自己创建一个窗口 然后用命令按钮响应它就可以了啊

[亚细亚]

[Quote=引用 1 楼 waizqfor 的回复:]
CreateWindow自己创建一个窗口 然后用命令按钮响应它就可以了啊
[/Quote]
在命令中我已经写了，可是出不来？

[亚细亚]

就是按钮相应的代码部分:

   switch(wParam)   
                 {   
                      case 1001: 
                      CreateWindow("first", "abc", WS_CHILD|WS_VISIBLE |WS_BORDER,100, 100, 200, 200, hwnd ,NULL,NULL,NULL);
                      break;  
                 } 

[ltc_mouse]

#define IDC_BTNCREATE    1001

case WM_COMMAND:
    switch( HIWORD(wParam) )   
    {
        case BN_CLICKED:
            if( IDC_BTNCREATE == LOWWORD(wParam) )
            {
                CreateWindow("first", "abc", WS_CHILD|WS_VISIBLE |WS_BORDER,100, 100, 200, 200, hwnd ,NULL,NULL,NULL);
            }
            break;  
    }
    break;

case WM_CREATE:
    {
        HWND hBtn = CreateWindow("button","创建",WS_CHILD|WS_VISIBLE |BS_PUSHBUTTON,50,50,100,50,hwnd,NULL,NULL,NULL);
        SetWindowLong( hBtn, GWL_ID, (LONG)IDC_BTNCREATE );
    }
    break;

[亚细亚]

弹出的窗体在什么地方相应winproc函数？也就是说弹出的窗体中的相应事件在哪里处理？

[亚细亚]

[Quote=引用 4 楼 ltc_mouse 的回复:]
C/C++ code#defineIDC_BTNCREATE 1001caseWM_COMMAND:switch( HIWORD(wParam) )
{caseBN_CLICKED:if( IDC_BTNCREATE==LOWWORD(wParam) )
{
CreateWindow("first","abc", WS_CHILD|WS_VISIBLE|WS_BORDER,100,100,200,200, hwnd ,NULL,NULL,NULL);
}break;
}break;caseWM_CREATE:
{
HWND hBtn=CreateWindow("button","创建",WS_CHILD|WS_VISIBLE|BS_PUSHBUTT…
[/Quote]
编译有问题，提示： undefined reference to `LOWWORD'

[ltc_mouse]

Sorry,正确的应该是LOWORD

[亚细亚]

[Quote=引用 7 楼 ltc_mouse 的回复:]
Sorry,正确的应该是LOWORD
[/Quote]
改正后，编译正确，但是单击"创建"按钮，并不能弹出窗体？
我的意思就是想知道：主窗体的创建过称就是设计-注册-创建-显示，那么在主窗体的基础之上新弹出的窗体是否要进行设计-注册-创建-显示这样的次序呢？如何在新弹出的窗体上如何写响应事件的函数(这个函数在什么地方写)？