走进windows编程的世界-----对话框、文本框、button
1 对话框的分类
2 对话框的基本使用方式
3 对话框资源
4 有模式对话框的使用
int DialogBox( HINSTANCE hInstance, LPCTSTR lpTemplate, HWND hWndParent, DLGPROC lpDialogFunc );
5 无模式对话框的使用
5.1 加入对话框资源
5.2 定义窗体处理函数
BOOL CALLBACK DialogProc( HWND hwndDlg, // handle to dialog box UINT uMsg, // message WPARAM wParam, // first message parameter LPARAM lParam ); // second message parameter
5.3 创建对话框
HWND CreateDialog( HINSTANCE hInstance,//应用程序实例句柄 LPCTSTR lpTemplate,//对话框的资源ID HWND hWndParent,//父窗体 DLGPROC lpDialogFunc );//对话框的窗体处理函数
返回值是创建好的对话框的窗体句柄。
5.4 显示对话框
ShowWindow
5.5 关闭对话框
EndDialog
5.6 与有模式对话框对照
创建函数: 有模式对话框 DialogBox
无模式对话框 CreateDialog
程序运行方式:
有模式对话框会堵塞,禁止其它窗体的输入
无模式对话框会让主程序,不影响其它窗体的输入
6 对话框中的消息
WM_INITDIALOG消息,用途相似于WM_CREATE消息
能够在对话框创建完毕后,进行数据初始化.
它与WM_CREATE不同之处是,WM_INITDIALOG消息
会在对话框资源模板上的全部子控件(button等)
创建完毕后,再发送给对话框窗体.
wParam - 当前接受输入焦点子控件窗体句柄
lParam - 创建时附带的參数
7 对话框和普通窗体的对照
7.1 创建方式
普通窗体: CreateWindow/Ex
对话框: DialogBox/CreateDialog
7.2 消息
普通窗体: 会收到WM_CREATE
对话框: WM_INITDIALOG
7.3 关闭方式:
普通窗体: DestoryWindow等
对话框: EndDialog
// windialog.cpp : 定义应用程序的入口点。// #include "stdafx.h" #include "windialog.h" #define MAX_LOADSTRING 100 // 全局变量: HINSTANCE hInst; // 当前实例 TCHAR szTitle[MAX_LOADSTRING]; // 标题栏文本 TCHAR szWindowClass[MAX_LOADSTRING]; // 主窗体类名 // 此代码模块中包括的函数的前向声明: ATOM MyRegisterClass(HINSTANCE hInstance); BOOL InitInstance(HINSTANCE, int); LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM); INT_PTR CALLBACK About(HWND, UINT, WPARAM, LPARAM); int APIENTRY _tWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPTSTR lpCmdLine, int nCmdShow) { UNREFERENCED_PARAMETER(hPrevInstance); UNREFERENCED_PARAMETER(lpCmdLine); // TODO: 在此放置代码。
MSG msg; HACCEL hAccelTable; // 初始化全局字符串 LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING); LoadString(hInstance, IDC_WINDIALOG, szWindowClass, MAX_LOADSTRING); MyRegisterClass(hInstance); // 运行应用程序初始化: if (!InitInstance (hInstance, nCmdShow)) { return FALSE; } hAccelTable = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDC_WINDIALOG)); // 主消息循环: while (GetMessage(&msg, NULL, 0, 0)) { if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg)) { TranslateMessage(&msg); DispatchMessage(&msg); } } return (int) msg.wParam; } // // 函数: MyRegisterClass() // // 目的: 注冊窗体类。 // // 凝视: // // 仅当希望 // 此代码与加入到 Windows 95 中的“RegisterClassEx” // 函数之前的 Win32 系统兼容时。才须要此函数及其使用方法。调用此函数十分重要， // 这样应用程序就能够获得关联的 // “格式正确的”小图标。 // ATOM MyRegisterClass(HINSTANCE hInstance) { WNDCLASSEX wcex; wcex.cbSize = sizeof(WNDCLASSEX); wcex.style = CS_HREDRAW | CS_VREDRAW; wcex.lpfnWndProc = WndProc; wcex.cbClsExtra = 0; wcex.cbWndExtra = 0; wcex.hInstance = hInstance; wcex.hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_WINDIALOG)); wcex.hCursor = LoadCursor(NULL, IDC_ARROW); wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1); wcex.lpszMenuName = MAKEINTRESOURCE(IDC_WINDIALOG); wcex.lpszClassName = szWindowClass; wcex.hIconSm = LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_SMALL)); return RegisterClassEx(&wcex); } // // 函数: InitInstance(HINSTANCE, int) // // 目的: 保存实例句柄并创建主窗体 // // 凝视: // // 在此函数中，我们在全局变量中保存实例句柄并 // 创建和显示主程序窗体。
// BOOL InitInstance(HINSTANCE hInstance, int nCmdShow) { HWND hWnd; hInst = hInstance; // 将实例句柄存储在全局变量中 hWnd = CreateWindow(szWindowClass, szTitle, WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, hInstance, NULL); if (!hWnd) { return FALSE; } ShowWindow(hWnd, nCmdShow); UpdateWindow(hWnd); return TRUE; } BOOL CALLBACK SettingDlgProc_1(HWND hwndDlg, UINT message, WPARAM wParam, LPARAM lParam) { switch(message){ case WM_CREATE: //不会发生 MessageBox( NULL, "WM_CREATE", "WinDlg", MB_OK ); break; case WM_INITDIALOG: /*相似于 WM_CREATE 消息，能够在对话框常见完毕后，进行数据初始化 *不同的是：WM_INITDIALOG 会在对话框资源莫班上全部的空间创建完毕后发送给对话框窗体 * wParam ：当前接受输入焦点子控件窗体句柄 * lParam ：创建时附带的參数 */ MessageBox( NULL, "WM_INITDIALOG","WinDlg", MB_OK ); break; case WM_SYSCOMMAND: switch(wParam){ case SC_CLOSE: EndDialog(hwndDlg,1); break; default: //EndDialog(hwndDlg,0); break; } break; default: break; } //默认对话框处理函数 //return DefDlgProc(hwndDlg, message, wParam, lParam); return 0; } // // 函数: WndProc(HWND, UINT, WPARAM, LPARAM) // // 目的: 处理主窗体的消息。 // // WM_COMMAND - 处理应用程序菜单 // WM_PAINT - 绘制主窗体 // WM_DESTROY - 发送退出消息并返回 // // LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) { int wmId, wmEvent; PAINTSTRUCT ps; HDC hdc; HWND hdlg; switch (message) { case WM_CREATE: //会发生 MessageBox( NULL, "WM_CREATE", "WinDlg", MB_OK ); break; case WM_COMMAND: wmId = LOWORD(wParam); wmEvent = HIWORD(wParam); int ret; // 分析菜单选择: switch (wmId) { case ID_32771: //有模式对话框会堵塞。禁止其它窗体的输入 ret = DialogBox(hInst,MAKEINTRESOURCE(ID_SETTING),hWnd,SettingDlgProc_1); if(ret != 2){ MessageBox(NULL,"取消配置","windialog",MB_OK); }else{ MessageBox(NULL,"确定配置","windialog",MB_OK); } break; case ID_32772: //无模式对话框会让主程序,不影响其它窗体的输入 hdlg = CreateDialog(hInst,MAKEINTRESOURCE(ID_SETTING),hWnd,SettingDlgProc_1); //显示对话框 ShowWindow(hdlg,SW_SHOW); break; case IDM_ABOUT: DialogBox(hInst, MAKEINTRESOURCE(IDD_ABOUTBOX), hWnd, About); break; case IDM_EXIT: DestroyWindow(hWnd); break; default: return DefWindowProc(hWnd, message, wParam, lParam); } break; case WM_PAINT: hdc = BeginPaint(hWnd, &ps); // TODO: 在此加入随意画图代码... EndPaint(hWnd, &ps); break; case WM_DESTROY: PostQuitMessage(0); break; default: return DefWindowProc(hWnd, message, wParam, lParam); } return 0; } // “关于”框的消息处理程序。 INT_PTR CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam) { UNREFERENCED_PARAMETER(lParam); switch (message) { case WM_INITDIALOG: return (INT_PTR)TRUE; case WM_COMMAND: if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL) { EndDialog(hDlg, LOWORD(wParam)); return (INT_PTR)TRUE; } break; } return (INT_PTR)FALSE; }
1 静态框创建
窗体类的名称 - STATIC, 用于窗体上
显示文字等, 假设使用SS_ICON/SS_BITMAP
风格能够显示ICON和BITMAP
文本静态框 - 创建时使用SS_SIMPLE就可以
ICON静态框 - 创建时须要使用SS_ICON, 而且将静态框的窗体名称设置成相应ICON的资源ID号,比如"#101".
2 静态框的命令相应
2.1 静态框要加入SS_NOTIFY风格
2.2 WM_COMMAND进行处理
WPARAM - HIWORD 命令ID
LOWORD 静态框的窗体ID
LPARAM - 静态框的窗体句柄.
3 静态框的消息
调用SendMessage函数,向Static控件发送消息
比如: STM_SETICON消息改动控件显示图标
SendMessage( hStatic, STM_SETICON,
(WPARAM)hIcon, 0 );
其它:
GetDlgItem 从窗体中获取指定ID的子控件的窗体句柄
// WinStatic.cpp : 定义应用程序的入口点。// #include "stdafx.h" #include "WinStatic.h" #define MAX_LOADSTRING 100 // 全局变量: HINSTANCE hInst; // 当前实例 TCHAR szTitle[MAX_LOADSTRING]; // 标题栏文本 TCHAR szWindowClass[MAX_LOADSTRING]; // 主窗体类名 // 此代码模块中包括的函数的前向声明: ATOM MyRegisterClass(HINSTANCE hInstance); BOOL InitInstance(HINSTANCE, int); LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM); INT_PTR CALLBACK About(HWND, UINT, WPARAM, LPARAM); int APIENTRY _tWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPTSTR lpCmdLine, int nCmdShow) { UNREFERENCED_PARAMETER(hPrevInstance); UNREFERENCED_PARAMETER(lpCmdLine); // TODO: 在此放置代码。
MSG msg; HACCEL hAccelTable; // 初始化全局字符串 LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING); LoadString(hInstance, IDC_WINSTATIC, szWindowClass, MAX_LOADSTRING); MyRegisterClass(hInstance); // 运行应用程序初始化: if (!InitInstance (hInstance, nCmdShow)) { return FALSE; } hAccelTable = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDC_WINSTATIC)); // 主消息循环: while (GetMessage(&msg, NULL, 0, 0)) { if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg)) { TranslateMessage(&msg); DispatchMessage(&msg); } } return (int) msg.wParam; } // // 函数: MyRegisterClass() // // 目的: 注冊窗体类。
// // 凝视: // // 仅当希望 // 此代码与加入到 Windows 95 中的“RegisterClassEx” // 函数之前的 Win32 系统兼容时。才须要此函数及其使用方法。
调用此函数十分重要， // 这样应用程序就能够获得关联的 // “格式正确的”小图标。 // ATOM MyRegisterClass(HINSTANCE hInstance) { WNDCLASSEX wcex; wcex.cbSize = sizeof(WNDCLASSEX); wcex.style = CS_HREDRAW | CS_VREDRAW; wcex.lpfnWndProc = WndProc; wcex.cbClsExtra = 0; wcex.cbWndExtra = 0; wcex.hInstance = hInstance; wcex.hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_WINSTATIC)); wcex.hCursor = LoadCursor(NULL, IDC_ARROW); wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1); wcex.lpszMenuName = MAKEINTRESOURCE(IDC_WINSTATIC); wcex.lpszClassName = szWindowClass; wcex.hIconSm = LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_SMALL)); return RegisterClassEx(&wcex); } // // 函数: InitInstance(HINSTANCE, int) // // 目的: 保存实例句柄并创建主窗体 // // 凝视: // // 在此函数中，我们在全局变量中保存实例句柄并 // 创建和显示主程序窗体。 // BOOL InitInstance(HINSTANCE hInstance, int nCmdShow) { HWND hWnd; hInst = hInstance; // 将实例句柄存储在全局变量中 hWnd = CreateWindow(szWindowClass, szTitle, WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, hInstance, NULL); if (!hWnd) { return FALSE; } ShowWindow(hWnd, nCmdShow); UpdateWindow(hWnd); return TRUE; } void OnCreate( HWND hWnd, UINT nMsg, WPARAM wParam, LPARAM lParam ) { CreateWindow( "STATIC", "hello Static", WS_CHILD|WS_VISIBLE|SS_SUNKEN|SS_SIMPLE|SS_NOTIFY, 50, 50, 100, 100, hWnd, (HMENU)1001, hInst, NULL ); CreateWindow( "STATIC", "#IDI_ICON2", //已经创建了一个icon图标，ID为101 WS_CHILD|WS_VISIBLE|SS_SUNKEN|SS_ICON|SS_NOTIFY, 200, 50, 100, 100, hWnd, (HMENU)1002, hInst, NULL ); } void OnCommand( HWND hWnd, UINT nMsg, WPARAM wParam, LPARAM lParam ) { int nCmdID = HIWORD( wParam ); int nCtrlID = LOWORD( wParam ); switch( nCtrlID ){ case ID_32771: { HICON hIcon = LoadIcon(hInst,MAKEINTRESOURCE(IDI_ICON1)); //通过ID获取多窗体的句柄 HWND hStatic = GetDlgItem(hWnd,1002); SendMessage(hStatic,STM_SETICON,(WPARAM)hIcon,0); } case 1001: { switch( nCmdID ) { case STN_CLICKED: MessageBox( NULL, "Hello Static 1001", "WinStatic", MB_OK ); break; } } break; case 1002: { switch( nCmdID ) { case STN_CLICKED: MessageBox( NULL, "Hello Static 1002", "WinStatic", MB_OK ); break; } } break; case IDM_ABOUT: DialogBox(hInst, MAKEINTRESOURCE(IDD_ABOUTBOX), hWnd, About); break; case IDM_EXIT: DestroyWindow(hWnd); break; default: DefWindowProc(hWnd, nMsg, wParam, lParam); } } // // 函数: WndProc(HWND, UINT, WPARAM, LPARAM) // // 目的: 处理主窗体的消息。 // // WM_COMMAND - 处理应用程序菜单 // WM_PAINT - 绘制主窗体 // WM_DESTROY - 发送退出消息并返回 // // LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) { int wmId, wmEvent; PAINTSTRUCT ps; HDC hdc; switch (message) { case WM_CREATE: OnCreate( hWnd, message, wParam, lParam ); break; case WM_COMMAND: OnCommand( hWnd, message, wParam, lParam ); break; case WM_PAINT: hdc = BeginPaint(hWnd, &ps); // TODO: 在此加入随意画图代码... EndPaint(hWnd, &ps); break; case WM_DESTROY: PostQuitMessage(0); break; default: return DefWindowProc(hWnd, message, wParam, lParam); } return 0; } // “关于”框的消息处理程序。
INT_PTR CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam) { UNREFERENCED_PARAMETER(lParam); switch (message) { case WM_INITDIALOG: return (INT_PTR)TRUE; case WM_COMMAND: if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL) { EndDialog(hDlg, LOWORD(wParam)); return (INT_PTR)TRUE; } break; } return (INT_PTR)FALSE; }
button
1 button的分类
依据创建button时使用的风格:
1.1 下压式button PUSH BUTTON
正常下压式button BS_PUSHBUTTON
三态下压button BS_3STATE/BS_AUTO3STATE
1.2 分组button Group Button
button样式:BS_GROUPBOX
1.3 多选button Check Box
button样式:BS_CHECKBOX/BS_AUTOCHECKBOX
1.4 单选button Radio Box
button样式:BS_RADIOBUTTON/
BS_AUTORADIOBUTTON
2 下压式button的使用
2.1 创建button
创建时使用BUTTON
2.2 命令消息
BN_CLICKED消息: 当点击button通过WM_COMMAND消息通知父窗体
2.3 通知消息
SendMessage
3 分组button
3.1 创建分组button
3.2 经常使用于对窗体内控件划分区域,添加界面的友好性
4 多选button CheckBox
4.1 创建使用 BS_CHECKBOX/BS_AUTOCHECKBOX
BS_AUTOCHECKBOX 选择状态系统自己主动维护
BS_CHECKBOX 选择状态须要自己维护
4.2 命令响应
BN_CLICKED 通过WM_COMMAND消息
4.3 通知消息
BM_GETCHECK 获取当前button被选择的状态
BM_SETCHECK 设置当前button被选择的状态
wParam 用于设置状态标示
状态: BST_CHECKED 或 BST_UNCHECKED
5 单选button RadioBox
5.1 创建使用 BS_RADIOBUTTON/BS_AUTORADIOBUTTON
BS_AUTORADIOBUTTON 选择状态系统自己主动维护
BS_RADIOBUTTON 选择状态须要自己维护
注意:
RadionBox分组 - 使用WS_GROUP样式,能够将
RadionBox分成多个组.
A CreateWindow ( ,,,WS_GROUP );
B CreateWindow...
C CreateWindow ( ,,,WS_GROUP );
D CreaetWindow...
A和B是一组, C和D是一组
5.2 命令响应
BN_CLICKED 通过WM_COMMAND消息
5.3 通知消息
与CheckBox相似
// WinButton.cpp : Defines the entry point for the application.
//
#include <Windows.h>
#include <stdio.h>
HINSTANCE g_hInst = NULL;
void OnCreate( HWND hWnd, UINT nMsg,
WPARAM wParam, LPARAM lParam )
{ //PUSH BUTTON
CreateWindow( "BUTTON", "PushButton",
WS_CHILD|WS_VISIBLE|BS_PUSHBUTTON,
100, 50, 100, 30,
hWnd, (HMENU)1001, g_hInst, NULL );
//三态button
CreateWindow( "BUTTON", "Auto3State",
WS_CHILD|WS_VISIBLE|BS_AUTO3STATE|BS_PUSHLIKE,
100, 100, 100, 30,
hWnd, (HMENU)2001, g_hInst, NULL );
//分组button
CreateWindow( "BUTTON", "分组一",
WS_CHILD|WS_VISIBLE|BS_GROUPBOX,
50, 30, 250, 400,
hWnd, (HMENU)3001, g_hInst, NULL );
//多选button CheckBox
CreateWindow( "BUTTON", "选项一",
WS_CHILD|WS_VISIBLE|BS_AUTOCHECKBOX,
100, 150, 100, 30,
hWnd, (HMENU)4001, g_hInst, NULL );
CreateWindow( "BUTTON", "选项二",
WS_CHILD|WS_VISIBLE|BS_CHECKBOX,
100, 180, 100, 30,
hWnd, (HMENU)4002, g_hInst, NULL );
// 单选button
CreateWindow( "BUTTON", "A",
WS_CHILD|WS_VISIBLE|BS_AUTORADIOBUTTON|WS_GROUP,
100, 240, 100, 30, hWnd,
(HMENU)5001, g_hInst, NULL );
CreateWindow( "BUTTON", "B",
WS_CHILD|WS_VISIBLE|BS_AUTORADIOBUTTON,
100, 270, 100, 30, hWnd,
(HMENU)5002, g_hInst, NULL );
CreateWindow( "BUTTON", "C",
WS_CHILD|WS_VISIBLE|BS_AUTORADIOBUTTON|WS_GROUP, //遇到WS_GROUP，表示新的一组单选button
100, 300, 100, 30, hWnd,
(HMENU)5003, g_hInst, NULL );
CreateWindow( "BUTTON", "D",
WS_CHILD|WS_VISIBLE|BS_AUTORADIOBUTTON,
100, 330, 100, 30, hWnd,
(HMENU)5004, g_hInst, NULL );
//创建记事本
CreateWindow( "EDIT", "Hello EDIT",
WS_CHILD|WS_VISIBLE/*|WS_HSCROLL|
WS_VSCROLL|ES_AUTOHSCROLL|
ES_AUTOVSCROLL|ES_MULTILINE 多行*/|ES_PASSWORD,
0, 0, 100, 50, hWnd,
(HMENU)1001, g_hInst, NULL );
}
void OnCommand( HWND hWnd, UINT nMsg,
WPARAM wParam, LPARAM lParam )
{
int nNotifyCode = HIWORD( wParam );
int nEventID = LOWORD( wParam );
switch( nEventID )
{
case 1001:
{
switch( nNotifyCode )
{
case BN_CLICKED:
MessageBox( NULL, "Hello PushButton",
"WinButton", MB_OK );
break;
}
}
break;
case 2001:
{
switch( nNotifyCode )
{
case BN_CLICKED:
MessageBox( NULL, "Hello Auto3State",
"WinButton", MB_OK );
break;
}
}
break;
case 4002:
{
HWND hCtrl = GetDlgItem( hWnd, 4002 );
LRESULT nCheck = 0;
switch( nNotifyCode )
{
case BN_CLICKED:
//获取当前CheckBox的状态
nCheck = SendMessage( hCtrl,
BM_GETCHECK, 0, 0 );
//推断当前状态是否被选择
if( nCheck & BST_CHECKED )
{ //设置为不选择状态
SendMessage( hCtrl,BM_SETCHECK,
BST_UNCHECKED, 0 );
}
else
{ //设置成选择状态
SendMessage( hCtrl,BM_SETCHECK,
BST_CHECKED, 0 );
}
break;
}
}
break;
}
}
LRESULT CALLBACK WndProc( HWND hWnd,
UINT nMsg,
WPARAM wParam,
LPARAM lParam )
{
switch( nMsg )
{
case WM_CREATE:
OnCreate( hWnd, nMsg, wParam, lParam );
break;
case WM_COMMAND:
OnCommand( hWnd, nMsg, wParam, lParam );
break;
case WM_DESTROY:
PostQuitMessage( 0 );
return 0;
}
return DefWindowProc( hWnd, nMsg,
wParam, lParam );
}
BOOL RegisterWnd( LPSTR pszClassName )
{
WNDCLASSEX wce = { 0 };
wce.cbSize = sizeof( wce );
wce.cbClsExtra = 0;
wce.cbWndExtra = 0;
wce.hbrBackground = HBRUSH(COLOR_WINDOW);
wce.hCursor = NULL;
wce.hIcon = NULL;
wce.hIconSm = NULL;
wce.hInstance = g_hInst;
wce.lpfnWndProc = WndProc;
wce.lpszClassName = pszClassName;
wce.lpszMenuName = NULL;
wce.style = CS_HREDRAW|CS_VREDRAW;
ATOM nAtom = RegisterClassEx( &wce );
if( 0 == nAtom )
{
return FALSE;
}
return TRUE;
}
HWND CreateWnd( LPSTR pszClassName )
{
HWND hWnd = CreateWindowEx( 0,
pszClassName, "MyWnd",
WS_OVERLAPPEDWINDOW, CW_USEDEFAULT,
CW_USEDEFAULT, CW_USEDEFAULT,
CW_USEDEFAULT, NULL, NULL, g_hInst,
NULL );
return hWnd;
}
void DisplayWnd( HWND hWnd )
{
ShowWindow( hWnd, SW_SHOW );
UpdateWindow( hWnd );
}
void Message( )
{
MSG msg = { 0 };
while( GetMessage( &msg, NULL, 0, 0 ) )
{
TranslateMessage( &msg );
DispatchMessage( &msg );
}
}
int APIENTRY WinMain(HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR lpCmdLine,
int nCmdShow)
{
g_hInst = hInstance;
RegisterWnd( "MYWND" );
HWND hWnd = CreateWnd( "MYWND" );
DisplayWnd( hWnd );
Message( );
return 0;
}1 文本编辑框的样式
1.1 单行文本编辑框 - 默认样式
1.2 多行文本编辑框 - ES_MULTILINE
1.3 password文本编辑框 - ES_PASSWORD
2 文本编辑框的使用
2.1 创建
窗体类名称EDIT.
2.2 Notify消息
EN_CHANGE 当编辑框内容发生变化时,会通知父窗体
2.3 EDIT窗体消息
EM_SETSEL 选择消息 WPARAM是起始字符位置
LPARAM是终止字符位置
窗体消息: WM_COPY, WM_PASET,WM_CUT等消息
WM_SETTEXT, WM_GETTEXT, WM_GETTEXTLEN
SetWindowText
GetWindowText/GetWindowTextLen
/* File : WinEdit.cpp
* Auth : sjin
* DATE : 20140720
* MAil :
*/
#include <Windows.h>
#include <stdlib.h>
#include <stdio.h>
#include "resource.h"
HINSTANCE g_hInst = NULL;
HWND g_hEdit = NULL;
void OnCreate( HWND hWnd, UINT nMsg,
WPARAM wParam, LPARAM lParam )
{
g_hEdit = CreateWindow( "EDIT", "Hello EDIT",
WS_CHILD|WS_VISIBLE|WS_HSCROLL|
WS_VSCROLL|ES_AUTOHSCROLL|
ES_AUTOVSCROLL|ES_MULTILINE,
0, 0, 100, 200, hWnd,
(HMENU)1001, g_hInst, NULL );
}
void OnSize( HWND hWnd, UINT nMsg,
WPARAM wParam, LPARAM lParam )
{
int nWidth = LOWORD( lParam );
int nHeight= HIWORD( lParam );
if( NULL != g_hEdit )
{ //将EDIT窗体填满整个客户区
MoveWindow( g_hEdit, 0, 0, nWidth,
nHeight, TRUE );
}
}
void OnSave( )
{
//获取文字长度
LRESULT nTextLen = SendMessage( g_hEdit,
WM_GETTEXTLENGTH, 0, 0 );
//获取文字
CHAR * pszBuff = NULL;
pszBuff = (CHAR *)malloc( nTextLen + 1 );
memset( pszBuff, 0, nTextLen + 1 );
SendMessage( g_hEdit, WM_GETTEXT,
nTextLen + 1, (LPARAM)pszBuff );
MessageBox( NULL, pszBuff, "WinEdit", MB_OK );
//保存文件
FILE * pFile = fopen( "D:\\1.txt", "w+" );
fwrite( pszBuff, nTextLen, 1, pFile );
fclose( pFile );
//释放内存
free( pszBuff );
}
void OnOpen( )
{
//打开文件读取数据
FILE * pFile = fopen( "D:\\1.txt", "r" );
//获取文件长度
fseek( pFile, 0, SEEK_END );
long nFileLen = ftell( pFile );
fseek( pFile, 0, SEEK_SET );
//读取文件数据
CHAR * pszBuf = (CHAR *)
malloc( nFileLen + 1 );
memset( pszBuf, 0, nFileLen + 1 );
fread( pszBuf, nFileLen, 1, pFile );
//关闭文件
fclose( pFile );
//将字符显示在EDIT窗体
SendMessage( g_hEdit, WM_SETTEXT,
0, (LPARAM)pszBuf );
//释放内存
free( pszBuf );
}
void OnCommand( HWND hWnd, UINT nMsg,
WPARAM wParam, LPARAM lParam )
{
int nNotifyCode = HIWORD( wParam );
int nEventID = LOWORD( wParam );
switch( nEventID )
{
case 1001:
{
switch( nNotifyCode )
{
case EN_CHANGE:
//MessageBox( NULL, "EN_CHANGE",
// "WinEdit", MB_OK );
break;
}
}
break;
case ID_SELALL:
SendMessage( g_hEdit, EM_SETSEL, 0, -1 );
break;
case ID_COPY://复制
SendMessage( g_hEdit, WM_COPY, 0, 0 );
break;
case ID_PASTE:
SendMessage( g_hEdit, WM_PASTE, 0, 0 );
break;
case ID_SAVE:
OnSave( );
break;
case ID_OPEN:
OnOpen( );
break;
}
}
LRESULT CALLBACK WndProc( HWND hWnd,
UINT nMsg,
WPARAM wParam,
LPARAM lParam )
{
switch( nMsg )
{
case WM_CREATE:
OnCreate( hWnd, nMsg, wParam, lParam );
break;
case WM_SIZE:
OnSize( hWnd, nMsg, wParam, lParam );
break;
case WM_COMMAND:
OnCommand( hWnd, nMsg, wParam, lParam );
break;
case WM_DESTROY:
PostQuitMessage( 0 );
return 0;
}
return DefWindowProc( hWnd, nMsg,
wParam, lParam );
}
BOOL RegisterWnd( LPSTR pszClassName )
{
WNDCLASSEX wce = { 0 };
wce.cbSize = sizeof( wce );
wce.cbClsExtra = 0;
wce.cbWndExtra = 0;
wce.hbrBackground = HBRUSH(COLOR_WINDOW);
wce.hCursor = NULL;
wce.hIcon = NULL;
wce.hIconSm = NULL;
wce.hInstance = g_hInst;
wce.lpfnWndProc = WndProc;
wce.lpszClassName = pszClassName;
wce.lpszMenuName = NULL;
wce.style = CS_HREDRAW|CS_VREDRAW;
ATOM nAtom = RegisterClassEx( &wce );
if( 0 == nAtom )
{
return FALSE;
}
return TRUE;
}
HWND CreateWnd( LPSTR pszClassName )
{
HMENU hMenu = LoadMenu( g_hInst,
MAKEINTRESOURCE(IDR_MAIN) );
HWND hWnd = CreateWindowEx(
WS_EX_CLIENTEDGE,
pszClassName, "我的记事本",
WS_OVERLAPPEDWINDOW, CW_USEDEFAULT,
CW_USEDEFAULT, CW_USEDEFAULT,
CW_USEDEFAULT, NULL, hMenu, g_hInst,
NULL );
return hWnd;
}
void DisplayWnd( HWND hWnd )
{
ShowWindow( hWnd, SW_SHOW );
UpdateWindow( hWnd );
}
void Message( )
{
MSG msg = { 0 };
while( GetMessage( &msg, NULL, 0, 0 ) )
{
TranslateMessage( &msg );
DispatchMessage( &msg );
}
}
int APIENTRY WinMain(HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR lpCmdLine,
int nCmdShow)
{
g_hInst = hInstance;
RegisterWnd( "MYWND" );
HWND hWnd = CreateWnd( "MYWND" );
DisplayWnd( hWnd );
Message( );
return 0;
}參考资料：
其它控件介绍：
http://www.cnblogs.com/tangzhengyue/archive/2012/08/16/2643149.html
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