Windows编程之非模态对话框

1  创建非模态对话框

<1>  HWNDCreateDialog(  HINSTANCE hInstance,  // handle to module

LPCTSTRlpTemplate,    // dialog box template name

HWNDhWndParent,    // handle to owner window

DLGPROClpDialogFunc  // dialog box procedure);

<2> HWND CreateDialogIndirect(  HINSTANCE hInstance,        // handle to module

LPCDLGTEMPLATE lpTemplate,   //dialog box template

HWND hWndParent,           // handle to owner window

DLGPROC lpDialogFunc         //dialog box procedure);

<3> HWND CreateDialogIndirectParam(  HINSTANCE hInstance,   // handle to module

LPCDLGTEMPLATE lpTemplate,  // dialog box template

HWND hWndParent,          // handle to owner window

DLGPROC lpDialogFunc,       // dialog box procedure

LPARAM lParamInit           // initialization value);

<4> HWND CreateDialogParam(  HINSTANCE hInstance,     // handle to module

LPCTSTR lpTemplateName,    //dialog box template

HWND hWndParent,         // handle to owner window

DLGPROC lpDialogFunc,      //dialog box procedure

LPARAM dwInitParam        //initialization value);

參数跟非模态对话框一致。CreateDialogParam会调用CreateWindowExe去创建一个窗体，所以这种对话框事实上就是窗体。当然单独一个对话框能够没有父窗体直接单独存在。

2   含有父窗体的对话框程序

3 自己定义窗体类（无父窗体）的对话框程序

<1>在脚本中指定对话框的类型以及各种控件假定脚本名称为new.dlg

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<2>然后在rc文件里加入脚本

<3>在WinMain函数注冊窗体类

注意这里的CreateDialog的最后一个參数DLGPROC为NULL，由于在窗体类中指定了窗体过程函数。

int WINAPI WinMain (HINSTANCE hInstance, HINSTANCEhPrevInstance,PSTR szCmdLine, intiCmdShow)
{
    staticTCHAR szAppName[] = TEXT ("HexCalc");
    HWND                    hwnd ;
    MSG                     msg ;
    WNDCLASS                wndclass ;

    wndclass.style              = CS_HREDRAW | CS_VREDRAW ;
    wndclass.lpfnWndProc        = WndProc ;
    wndclass.cbClsExtra         = 0 ;
    wndclass.cbWndExtra         = DLGWINDOWEXTRA ; // note here
    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 ;

    if(!RegisterClass (&wndclass))
         {
        MessageBox (  NULL, TEXT ("Thisprogram requires Windows NT!"), szAppName, MB_ICONERROR) ;
        return0 ;
    }

         hwnd =CreateDialog(hInstance,szAppName,NULL,NULL);    //note here

    ShowWindow (hwnd, iCmdShow) ;
    UpdateWindow (hwnd) ;

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

    returnmsg.wParam ;
}

生成的窗体程序程序如图所看到的：

12 从资源载入（无父窗体）的对话框程序

LRESULT CALLBACKWndProc(HWND,UINT,WPARAM,LPARAM) ;
int WINAPI WinMain (HINSTANCE hInstance, HINSTANCEhPrevInstance,PSTR szCmdLine, intiCmdShow)
{
    HWND                    hwnd ;
    MSG                     msg ;

         //hwnd =CreateDialog(hInstance,MAKEINTRESOURCE(IDD_DIALOG1),NULL,(DLGPROC)WndProc);
    hwnd =CreateDialogParam(hInstance,MAKEINTRESOURCE(IDD_DIALOG1),NULL,(DLGPROC)WndProc,NULL);

    ShowWindow (hwnd, iCmdShow) ;
    UpdateWindow (hwnd) ;

    while(GetMessage (&msg, NULL, 0, 0))
         {
                   TranslateMessage (&msg) ;
                   DispatchMessage (&msg) ;
    }
    returnmsg.wParam ;
}

能够看到这里没有窗体的设计，窗体的注冊，由于这样的从资源载入的对话框的窗体类是已经定义的，就像那种PushButton一样。都是定义好的窗体的类，因而不须要注冊。

生成的单独对话框程序例如以下图所看到的：

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以上程序的下载地址：下载