MDI应用程序的“客户端"窗口中的树形视图. [英] Tree view in Client window of MDI application.
本文介绍了MDI应用程序的“客户端"窗口中的树形视图.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
我想在MDI应用程序的客户端窗口中创建树形视图.
怎么做.
这就是我的代码的样子.
请给出详细的示例，因为我是Win32编程的新手.
I want to create Tree view in client window of MDI application.
How to do so.
This is how my code look like.
Please Give in detail example as i am new to win32 programming.
int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
PSTR szCmdLine, int iCmdShow)
{
HACCEL hAccel ;
HWND hwndFrame, hwndClient ;
MSG msg ;
WNDCLASS wndclass ;
hInst = hInstance ;
// Register the frame window class
wndclass.style = CS_HREDRAW | CS_VREDRAW ;
wndclass.lpfnWndProc = FrameWndProc ;
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 the Hello child window class
wndclass.style = CS_HREDRAW | CS_VREDRAW ;
wndclass.lpfnWndProc = HelloWndProc ;
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 = szHelloClass ;
RegisterClass (&wndclass) ;
// Register the Rect child window class
wndclass.style = CS_HREDRAW | CS_VREDRAW ;
wndclass.lpfnWndProc = RectWndProc ;
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 = szRectClass ;
RegisterClass (&wndclass) ;
// Obtain handles to three possible menus & submenus
hMenuInit = LoadMenu (hInstance, TEXT ("MdiMenuInit")) ;
hMenuHello = LoadMenu (hInstance, TEXT ("MdiMenuHello")) ;
hMenuInitWindow = GetSubMenu (hMenuInit, INIT_MENU_POS) ;
hMenuHelloWindow = GetSubMenu (hMenuHello, HELLO_MENU_POS) ;
// Load accelerator table
hAccel = LoadAccelerators (hInstance, szAppName) ;
// Create the frame window
hwndFrame = CreateWindow (szFrameClass, TEXT ("Utility Application"),
WS_OVERLAPPEDWINDOW | WS_CLIPCHILDREN,
CW_USEDEFAULT, CW_USEDEFAULT,
CW_USEDEFAULT, CW_USEDEFAULT,
NULL, hMenuInit, hInstance, NULL) ;
hwndClient = GetWindow (hwndFrame, GW_CHILD) ;
ShowWindow (hwndFrame, iCmdShow) ;
UpdateWindow (hwndFrame) ;
// Enter the modified message loop
while (GetMessage (&msg, NULL, 0, 0))
{
if (!TranslateMDISysAccel (hwndClient, &msg) &&
!TranslateAccelerator (hwndFrame, hAccel, &msg))
{
TranslateMessage (&msg) ;
DispatchMessage (&msg) ;
}
}
// Clean up by deleting unattached menus
DestroyMenu (hMenuHello) ;
return msg.wParam ;
}
LRESULT CALLBACK FrameWndProc (HWND hwnd, UINT message,
WPARAM wParam, LPARAM lParam)
{
static HWND hwndClient ;
CLIENTCREATESTRUCT clientcreate ;
HWND hwndChild ;
MDICREATESTRUCT mdicreate ;
static HINSTANCE hInstance;
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) ;
return 0 ;
case WM_COMMAND:
switch (LOWORD (wParam))
{
case IDM_FILE_NEWHELLO: // Create a Hello child window
mdicreate.szClass = szHelloClass ;
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 IDM_FILE_CLOSE: // Close the active window
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 IDM_APP_EXIT: // Exit the program
SendMessage (hwnd, WM_CLOSE, 0, 0) ;
return 0 ;
// messages for arranging windows
case IDM_WINDOW_TILE:
SendMessage (hwndClient, WM_MDITILE, 0, 0) ;
return 0 ;
case IDM_WINDOW_CASCADE:
SendMessage (hwndClient, WM_MDICASCADE, 0, 0) ;
return 0 ;
case IDM_WINDOW_ARRANGE:
SendMessage (hwndClient, WM_MDIICONARRANGE, 0, 0) ;
return 0 ;
case IDM_WINDOW_CLOSEALL: // Attempt to close all children
EnumChildWindows (hwndClient, CloseEnumProc, 0) ;
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 ; // ...and then to DefFrameProc
}
break ;
case WM_QUERYENDSESSION:
case WM_CLOSE: // Attempt to close all children
SendMessage (hwnd, WM_COMMAND, IDM_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 HelloWndProc (HWND hwnd, UINT message,
WPARAM wParam, LPARAM lParam)
{
static HWND hwndClient, hwndFrame ;
HDC hdc ;
HMENU hMenu ;
PHELLODATA pHelloData ;
PAINTSTRUCT ps ;
RECT rect ;
HWND hwndTV; // handle to tree-view control
switch (message)
{
case WM_CREATE:
RECT rect ;
hwndTV = CreateWindowEx(0,
WC_TREEVIEW,
TEXT("Tree View"),
WS_VISIBLE | WS_CHILD | WS_BORDER | TVS_HASLINES,
0,
0,
rect.right,
rect.bottom,
hwnd,
NULL,
(HINSTANCE) GetWindowLong (hwnd, GWL_HINSTANCE),
NULL);
// Allocate memory for window private data
pHelloData = (PHELLODATA) HeapAlloc (GetProcessHeap (),
HEAP_ZERO_MEMORY, sizeof (HELLODATA)) ;
// Save some window handles
hwndClient = GetParent (hwnd) ;
hwndFrame = GetParent (hwndClient) ;
return 0 ;
case WM_PAINT: // Paint the window
hdc = BeginPaint (hwnd, &ps) ;
GetClientRect (hwnd, &rect) ;
DrawText (hdc, TEXT ("System information!"), -1, &rect,
DT_SINGLELINE | DT_CENTER | DT_VCENTER) ;
EndPaint (hwnd, &ps) ;
return 0 ;
case WM_MDIACTIVATE:
// 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:
pHelloData = (PHELLODATA) GetWindowLong (hwnd, 0) ;
HeapFree (GetProcessHeap (), 0, pHelloData) ;
return 0 ;
}
// Pass unprocessed message to DefMDIChildProc
return DefMDIChildProc (hwnd, message, wParam, lParam) ;
}
推荐答案
您正在使事情变得困难.
使用Visual Studio应用程序向导使用CFormView或CTreeView生成项目.
如果使用CFormview，则可以将TreeControl放到与该视图关联的对话框模板中.
您可以使用"Generated Classes"选项卡在新项目中更改视图类型.
如果要将此视图添加到现有项目中，请创建一个测试项目以获取向导来创建适当的源文件并将其复制.
You''re making things difficult.
Use the Visual Studio Application Wizard to build a project with a CFormView or a CTreeView.
If you use the CFormview then you can drop a TreeControl into the dialog template associated with the view.
You can change the view type in a new project using the tab, ''Generated Classes''.
If you want to add this view to an existing project, then make a test project to get the wizard to create the appropriate source files and copy them over.
请遵循以下代码部分:
follow the code part:
switch(msg)
{
case WM_CREATE:
CreateWindowEx(0,L"MDICLIENT", L"",
WS_CHILD|WS_VISIBLE, 0,0,0,0, hWnd, (HMENU) ID_CLIENT_AREA, hInstance, NULL);
CreateWindowEx(0,L"SysTreeView32", L"",
WS_CHILD|WS_VISIBLE, 0,0,0,0, hWnd, (HMENU) ID_GLOBALTREE, hInstance, NULL);
)
break;
case WM_SIZE:
RECT rc;
GetClientRect(hWnd, &rc);
SetWindowPos(GetDlgItem(hWnd,ID_GLOBALTREE),0,0, 100, rc.bottom,SWP_SHOWWINDOW);
SetWindowPos(GetDlgItem(hWnd,ID_CLIENT_AREA),101,0, rc.right-100, rc.bottom,SWP_SHOWWINDOW);
break;
...
}
您可以在调整大小上做很多其他的技巧....
you can do lots of other tricks on re-sizing....
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