本文介绍了无法在MDI窗口中获取菜单.的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我无法在应用程序中使用菜单和MDI，请提供帮助.
I am not getting menu and MDI working in my application Please help.
include "windows.h"
#include "resource.h"
#define IDR_MENU1 2
#define IDR_MENU2 3
#define IDR_MENU3 3
#define IDM_FIRSTCHILD 50000
LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ;
BOOL CALLBACK CloseEnumProc (HWND, LPARAM) ;
LRESULT CALLBACK SystemInfoWndProc (HWND, UINT, WPARAM, LPARAM) ;
LRESULT CALLBACK DriverInfoWndProc (HWND, UINT, WPARAM, LPARAM) ;
HWND hAddRuleDlg,hwnd,hWndStatus;
TCHAR szAppName[] = TEXT ("Utility Application");
TCHAR szFrameClass[] = TEXT ("Utility Application");
TCHAR szSysClass[] = TEXT ("System Information");
TCHAR szDriverClass[] = TEXT ("Driver Information") ;
HINSTANCE hInst;
HMENU hMenuInit, hMenuSys, hMenuDriver ;
HMENU hMenuInitWindow, hMenuSysWindow, hMenuDriverWindow ;
int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
PSTR szCmdLine, int iCmdShow)
{
HWND hwnd, hwndClient ;
MSG msg ;
WNDCLASS wndclass ;
hInst = hInstance;
// Frame Window Class
wndclass.style = CS_HREDRAW | CS_VREDRAW ;
wndclass.lpfnWndProc = WndProc ;
wndclass.cbClsExtra = 0 ;
wndclass.cbWndExtra = 0 ;
wndclass.hInstance = hInstance ;
wndclass.hIcon = LoadIcon (hInstance, MAKEINTRESOURCE(IDI_ICON1)) ;
wndclass.hCursor = LoadCursor (NULL, IDC_ARROW) ;
wndclass.hbrBackground = (HBRUSH) (COLOR_APPWORKSPACE + 1) ;
wndclass.lpszMenuName = NULL;
wndclass.lpszClassName = szFrameClass ;
if (!RegisterClass (&wndclass))
{
MessageBox (NULL, TEXT ("This program requires Windows NT!"),
szAppName, MB_ICONERROR) ;
return 0 ;
}
//Register SystemInformation Window
wndclass.style = CS_HREDRAW | CS_VREDRAW;
wndclass.lpfnWndProc = SystemInfoWndProc;
wndclass.cbClsExtra = 0 ;
wndclass.cbWndExtra = sizeof(HANDLE) ;
wndclass.hInstance = hInstance;
wndclass.hIcon = LoadIcon (hInstance, MAKEINTRESOURCE(IDI_ICON2)) ;
wndclass.hCursor = LoadCursor (NULL, IDC_ARROW) ;
wndclass.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH) ;
wndclass.lpszMenuName = NULL;
wndclass.lpszClassName = szSysClass ;
RegisterClass (&wndclass);
//Registring DriverInformation Window
wndclass.style = CS_HREDRAW | CS_VREDRAW;
wndclass.lpfnWndProc = DriverInfoWndProc;
wndclass.cbClsExtra = 0 ;
wndclass.cbWndExtra = sizeof(HANDLE) ;
wndclass.hInstance = hInstance;
wndclass.hIcon = LoadIcon (hInstance, MAKEINTRESOURCE(IDI_ICON3)) ;
wndclass.hCursor = LoadCursor (NULL, IDC_ARROW) ;
wndclass.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH) ;
wndclass.lpszMenuName = NULL;
wndclass.lpszClassName = szDriverClass ;
RegisterClass (&wndclass);
// Obtain handles to three possible menus & submenus
hMenuInit = LoadMenu (hInstance, TEXT ("MdiMenuInit")) ;
hMenuSys = LoadMenu (hInstance, TEXT ("MdiMenuSys")) ;
hMenuDriver = LoadMenu (hInstance, TEXT ("MdiMenuDriver")) ;
hMenuInitWindow = GetSubMenu (hMenuInit, IDR_MENU1) ;
hMenuSysWindow = GetSubMenu (hMenuSys, IDR_MENU2) ;
hMenuDriverWindow = GetSubMenu (hMenuDriver, IDR_MENU3) ;
//Creating Frame Window
hwnd = CreateWindow (szFrameClass, TEXT ("Utility Application"),
WS_OVERLAPPEDWINDOW | WS_CLIPCHILDREN,
CW_USEDEFAULT, CW_USEDEFAULT,
CW_USEDEFAULT, CW_USEDEFAULT,
NULL, hMenuInit, hInstance, NULL) ;
hwndClient = GetWindow (hwnd, GW_CHILD) ;
ShowWindow (hwnd, iCmdShow) ;
UpdateWindow (hwnd) ;
while (GetMessage (&msg, NULL, 0, 0))
{
if (hAddRuleDlg == 0 ||!IsDialogMessage (hAddRuleDlg, &msg) && !TranslateMDISysAccel (hwndClient, &msg))
{
TranslateMessage (&msg) ;
DispatchMessage (&msg) ;
}
}
return msg.wParam ;
}
LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
static HINSTANCE hInstance;
HMENU hMenu ;
static HWND hwndClient ;
CLIENTCREATESTRUCT clientcreate ;
HWND hwndChild ;
MDICREATESTRUCT mdicreate ;
SYSTEMTIME st, lt;
GetLocalTime(<);
TCHAR szBuffer[40];
int iStatusWidths[] = {200,580,-1};
switch (message)
{
case WM_CREATE :
hInstance = ((LPCREATESTRUCT) lParam)->hInstance ;
// Create the client window
clientcreate.hWindowMenu = hMenuInitWindow ;
clientcreate.idFirstChild = IDM_FIRSTCHILD ;
hwndClient = CreateWindow (TEXT ("MDICLIENT"), NULL,
WS_CHILD | WS_CLIPCHILDREN | WS_VISIBLE,
0, 0, 0, 0, hwnd, (HMENU) 1, hInst,
(PSTR) &clientcreate) ;
/* hWndStatus = CreateWindowEx(0L, // no extended styles
STATUSCLASSNAME, // status bar
NULL, // no text
WS_CHILD | WS_VISIBLE |SBARS_SIZEGRIP, // styles
0, 0, 0, 0, // x, y, cx, cy
hwnd, // parent window
(HMENU)1000, // window ID
hInstance, // instance
NULL); // window data
SendMessage(hWndStatus, SB_SETPARTS, 3, (LPARAM)iStatusWidths);
SendMessage(hWndStatus, SB_SETTEXT, 0,(LPARAM)(TEXT("Application started, no error detected.")));
wsprintf(szBuffer, TEXT("Date: %02d-%02d-%02d Time :%02d:%02d"), lt.wDay,lt.wMonth,lt.wYear,lt.wHour,lt.wMinute);
SendMessage(hWndStatus, SB_SETTEXT, 2,(LPARAM)szBuffer);
ShowWindow(hWndStatus, SW_SHOW);
if (hWndStatus == NULL)
MessageBox (NULL, TEXT ("Error occured!"), szAppName, MB_OK );
break;*/
return 0;
case WM_SIZE:
SendMessage(hWndStatus, WM_SIZE, 0, 0);
return 0;
case WM_COMMAND:
hMenu = GetMenu (hwnd) ;
switch (LOWORD (wParam))
{
case ID_FILE_CLOSE:
hwndChild = (HWND) SendMessage (hwndClient,
WM_MDIGETACTIVE, 0, 0) ;
if (SendMessage (hwndChild, WM_QUERYENDSESSION, 0, 0))
SendMessage (hwndClient, WM_MDIDESTROY,
(WPARAM) hwndChild, 0) ;
return 0 ;
case ID_FILE_EXIT: //Exit the Application
SendMessage (hwnd, WM_CLOSE, 0, 0) ;
return 0 ;
case ID_TOOL_GETIPINFO:
DialogBox (hInstance, MAKEINTRESOURCE(IDD_DIALOG1), hwnd, IpDlgProc) ;
break;
case ID_TOOL_TCPCONNECTIONS:
DialogBox (hInstance, MAKEINTRESOURCE(IDD_DIALOG2), hwnd, TcpDlgProc);
break;
case ID_TOOL_UDPCONNTECTIONS:
DialogBox (hInstance, MAKEINTRESOURCE(IDD_DIALOG3), hwnd, UdpDlgProc);
break;
case ID_TOOL_TCPSTATISTICS:
DialogBox (hInstance, MAKEINTRESOURCE(IDD_DIALOG4), hwnd, TcpStatDlgProc);
break;
case ID_TOOL_UDPSTATISTICS:
DialogBox (hInstance, MAKEINTRESOURCE(IDD_DIALOG5), hwnd, UdpStatDlgProc);
break;
case ID_TOOL_IPSTATISTICS:
DialogBox (hInstance, MAKEINTRESOURCE(IDD_DIALOG6), hwnd, IpStatDlgProc);
break;
case ID_TOOL_ICMPSTATISTICS:
DialogBox (hInstance, MAKEINTRESOURCE(IDD_DIALOG7), hwnd, IcmpStatDlgProc);
break;
case ID_INFORMATION_SYSTEMINFORMATION: //System information child window
mdicreate.szClass = szSysClass ;
mdicreate.szTitle = TEXT ("System Information") ;
mdicreate.hOwner = hInst ;
mdicreate.x = CW_USEDEFAULT ;
mdicreate.y = CW_USEDEFAULT ;
mdicreate.cx = CW_USEDEFAULT ;
mdicreate.cy = CW_USEDEFAULT ;
mdicreate.style = 0 ;
mdicreate.lParam = 0 ;
hwndChild = (HWND) SendMessage (hwndClient,
WM_MDICREATE, 0,
(LPARAM) (LPMDICREATESTRUCT) &mdicreate) ;
return 0;
case ID_INFORMATION_DRIVERINFROMATION: // Driver information child window
mdicreate.szClass = szDriverClass ;
mdicreate.szTitle = TEXT ("Driver Information") ;
mdicreate.hOwner = hInst ;
mdicreate.x = CW_USEDEFAULT ;
mdicreate.y = CW_USEDEFAULT ;
mdicreate.cx = CW_USEDEFAULT ;
mdicreate.cy = CW_USEDEFAULT ;
mdicreate.style = 0 ;
mdicreate.lParam = 0 ;
hwndChild = (HWND) SendMessage (hwndClient,
WM_MDICREATE, 0,
(LPARAM) (LPMDICREATESTRUCT) &mdicreate) ;
return 0;
case ID_WINDOW_TILE:
SendMessage (hwndClient, WM_MDITILE, 0, 0) ;
return 0 ;
case ID_WINDOW_CASCADE:
SendMessage (hwndClient, WM_MDICASCADE, 0, 0) ;
return 0 ;
case ID_WINDOW_ARRANGE:
SendMessage (hwndClient, WM_MDIICONARRANGE, 0, 0) ;
return 0 ;
case ID_WINDOW_CLOSEALL: // Attempt to close all children
EnumChildWindows (hwndClient, CloseEnumProc, 0) ;
return 0 ;
case ID_HELP_HELP:
MessageBox (hwnd, TEXT ("Help not yet implemented!"),
szAppName, MB_ICONEXCLAMATION | MB_OK) ;
return 0 ;
case ID_HELP_ABOUT:
MessageBox (hwnd, TEXT ("Project By\n\n")
TEXT ("02] Amit Kumar Yadav\n03] Rahul Bandgar\n51] Taufiq Ahmed"),
szAppName, MB_ICONINFORMATION | MB_OK) ;
return 0 ;
default: // Pass to active child...
hwndChild = (HWND) SendMessage (hwndClient,
WM_MDIGETACTIVE, 0, 0) ;
if (IsWindow (hwndChild))
SendMessage (hwndChild, WM_COMMAND, wParam, lParam) ;
break ;
}
return 0 ;
case WM_QUERYENDSESSION:
case WM_CLOSE: // Attempt to close all children
SendMessage (hwnd, WM_COMMAND, ID_WINDOW_CLOSEALL, 0) ;
if (NULL != GetWindow (hwndClient, GW_CHILD))
return 0 ;
break ; // i.e., call DefFrameProc
case WM_DESTROY:
PostQuitMessage (0) ;
return 0 ;
}
// Pass unprocessed messages to DefFrameProc (not DefWindowProc)
return DefFrameProc (hwnd, hwndClient, message, wParam, lParam) ;
}
BOOL CALLBACK CloseEnumProc (HWND hwnd, LPARAM lParam)
{
if (GetWindow (hwnd, GW_OWNER)) // Check for icon title
return TRUE ;
SendMessage (GetParent (hwnd), WM_MDIRESTORE, (WPARAM) hwnd, 0) ;
if (!SendMessage (hwnd, WM_QUERYENDSESSION, 0, 0))
return TRUE ;
SendMessage (GetParent (hwnd), WM_MDIDESTROY, (WPARAM) hwnd, 0) ;
return TRUE ;
}
LRESULT CALLBACK SystemInfoWndProc (HWND hwnd, UINT message,
WPARAM wParam, LPARAM lParam)
{
static COLORREF clrTextArray[] = { RGB (0, 0, 0), RGB (255, 0, 0),
RGB (0, 255, 0), RGB ( 0, 0, 255),
RGB (255, 255, 255) } ;
static HWND hwndClient, hwndFrame ;
HDC hdc ;
HMENU hMenu ;
PAINTSTRUCT ps ;
RECT rect ;
switch (message)
{
case WM_CREATE:
return 0 ;
case WM_PAINT:
// Paint the window
hdc = BeginPaint (hwnd, &ps) ;
GetClientRect (hwnd, &rect) ;
DrawText (hdc, TEXT ("Hello, World!"), -1, &rect,
DT_SINGLELINE | DT_CENTER | DT_VCENTER) ;
EndPaint (hwnd, &ps) ;
return 0 ;
case WM_MDIACTIVATE:
// Set the Hello menu if gaining focus
if (lParam == (LPARAM) hwnd)
SendMessage (hwndClient, WM_MDISETMENU,
(WPARAM) hMenuSys, (LPARAM) hMenuSysWindow) ;
// Set the Init menu if losing focus
if (lParam != (LPARAM) hwnd)
SendMessage (hwndClient, WM_MDISETMENU, (WPARAM) hMenuInit,
(LPARAM) hMenuInitWindow) ;
DrawMenuBar (hwndFrame) ;
return 0 ;
case WM_QUERYENDSESSION:
case WM_CLOSE:
if (IDOK != MessageBox (hwnd, TEXT ("OK to close window?"),
TEXT ("Hello"),
MB_ICONQUESTION | MB_OKCANCEL))
return 0 ;
break ; // i.e., call DefMDIChildProc
case WM_DESTROY:
PostQuitMessage (0) ;
return 0 ;
}
// Pass unprocessed message to DefMDIChildProc
return DefMDIChildProc (hwnd, message, wParam, lParam) ;
}
LRESULT CALLBACK DriverInfoWndProc (HWND hwnd, UINT message,
WPARAM wParam, LPARAM lParam)
{
static HWND hwndClient, hwndFrame ;
HBRUSH hBrush ;
HDC hdc ;
PAINTSTRUCT ps ;
RECT rect ;
int xLeft, xRight, yTop, yBottom ;
short nRed, nGreen, nBlue ;
switch (message)
{
case WM_CREATE:
return 0 ;
case WM_PAINT: // Clear the window
hdc = BeginPaint (hwnd, &ps) ;
GetClientRect (hwnd, &rect) ;
DrawText (hdc, TEXT ("Hello, World!"), -1, &rect,
DT_SINGLELINE | DT_CENTER | DT_VCENTER) ;
EndPaint (hwnd, &ps) ;
return 0 ;
case WM_MDIACTIVATE: // Set the appropriate menu
if (lParam == (LPARAM) hwnd)
SendMessage (hwndClient, WM_MDISETMENU, (WPARAM) hMenuDriver,
(LPARAM) hMenuDriverWindow) ;
else
SendMessage (hwndClient, WM_MDISETMENU, (WPARAM) hMenuInit,
(LPARAM) hMenuInitWindow) ;
DrawMenuBar (hwndFrame) ;
return 0 ;
case WM_DESTROY:
PostQuitMessage (0) ;
return 0 ;
}
// Pass unprocessed message to DefMDIChildProc
return DefMDIChildProc (hwnd, message, wParam, lParam) ;
}推荐答案
wndclass.lpszMenuName = NULL;
如下正确设置
give it correct as below
wndclass.lpszMenuName = MAKEINTRESOURCE(IDC_MENU1/*resource name of your menu item*/);
这篇关于无法在MDI窗口中获取菜单.的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！