标签：11 06 int hWnd WM return 2021 hInstance wcex
跳动的字符//Windows编程
// 跳动的字符.cpp : Defines the entry point for the application.
//
#include “stdafx.h”
#include “resource.h”
#define MAX_LOADSTRING 100
// Global Variables:
HINSTANCE hInst; // current instance
TCHAR szTitle[MAX_LOADSTRING]; // The title bar text
TCHAR szWindowClass[MAX_LOADSTRING]; // The title bar text
// Foward declarations of functions included in this code module:
ATOM MyRegisterClass(HINSTANCE hInstance);
BOOL InitInstance(HINSTANCE, int);
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
LRESULT CALLBACK About(HWND, UINT, WPARAM, LPARAM);
int APIENTRY WinMain(HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR lpCmdLine,
int nCmdShow)
{
// TODO: Place code here.
MSG msg;
HACCEL hAccelTable;
// Initialize global strings
LoadString(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);
LoadString(hInstance, IDC_MY, szWindowClass, MAX_LOADSTRING);
MyRegisterClass(hInstance);
// Perform application initialization:
if (!InitInstance (hInstance, nCmdShow))
{
return FALSE;
}
hAccelTable = LoadAccelerators(hInstance, (LPCTSTR)IDC_MY);
// Main message loop:
while (GetMessage(&msg, NULL, 0, 0))
{
if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
return msg.wParam;
}
//
// FUNCTION: MyRegisterClass()
//
// PURPOSE: Registers the window class.
//
// COMMENTS:
//
// This function and its usage is only necessary if you want this code
// to be compatible with Win32 systems prior to the ‘RegisterClassEx’
// function that was added to Windows 95. It is important to call this function
// so that the application will get ‘well formed’ small icons associated
// with it.
//
ATOM MyRegisterClass(HINSTANCE hInstance)
{
WNDCLASSEX wcex;
wcex.cbSize = sizeof(WNDCLASSEX);
wcex.style = CS_HREDRAW | CS_VREDRAW;
wcex.lpfnWndProc = (WNDPROC)WndProc;
wcex.cbClsExtra = 0;
wcex.cbWndExtra = 0;
wcex.hInstance = hInstance;
wcex.hIcon = LoadIcon(hInstance, (LPCTSTR)IDI_MY);
wcex.hCursor = LoadCursor(NULL, IDC_ARROW);
wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
wcex.lpszMenuName = (LPCSTR)IDC_MY;
wcex.lpszClassName = szWindowClass;
wcex.hIconSm = LoadIcon(wcex.hInstance, (LPCTSTR)IDI_SMALL);
return RegisterClassEx(&wcex);
}
//
// FUNCTION: InitInstance(HANDLE, int)
//
// PURPOSE: Saves instance handle and creates main window
//
// COMMENTS:
//
// In this function, we save the instance handle in a global variable and
// create and display the main program window.
//
BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
{
HWND hWnd;
hInst = hInstance; // Store instance handle in our global variable
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;
}
//
// FUNCTION: WndProc(HWND, unsigned, WORD, LONG)
//
// PURPOSE: Processes messages for the main window.
//
// WM_COMMAND - process the application menu
// WM_PAINT - Paint the main window
// WM_DESTROY - post a quit message and return
//
//
int nchar=1;//定义一个初始往上跳的位置，从第一个字符开始跳
bool direct;
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
int wmId, wmEvent;
PAINTSTRUCT ps;
HDC hdc;
TCHAR szHello[MAX_LOADSTRING];
LoadString(hInst, IDS_HELLO, szHello, MAX_LOADSTRING);
TCHAR textbuf[]="nihao,HelloWorld!I like China!";
int x=0,y=0;
int len=strlen(textbuf);
TEXTMETRIC tm;
HFONT hf,hfbig;
switch (message)
{
case WM_CREATE:
::SetTimer(hWnd,1,300,NULL);
case WM_TIMER:
::InvalidateRect(hWnd,NULL,true);
break;
case WM_COMMAND:
wmId = LOWORD(wParam);
wmEvent = HIWORD(wParam);
// Parse the menu selections:
switch (wmId)
{
case IDM_ABOUT:
DialogBox(hInst, (LPCTSTR)IDD_ABOUTBOX, hWnd, (DLGPROC)About);
break;
case IDM_EXIT:
DestroyWindow(hWnd);
break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
break;
case WM_PAINT:
hdc = BeginPaint(hWnd, &ps);
// TODO: Add any drawing code here...
RECT rt;
GetClientRect(hWnd, &rt);
//DrawText(hdc, szHello, strlen(szHello), &rt, DT_CENTER);
if(direct)
{
nchar++;
if(nchar==len-1)
direct=false;
}
else
{
nchar--;
if(nchar==0)
direct=true;
}
::GetTextMetrics(hdc,&tm);//获取字体信息
hf=::CreateFont(20,0,0,0,0,0,0,0,0,0,0,0,0,NULL);//20为原来字体大小
hfbig=CreateFont(40,0,0,0,0,0,0,0,0,0,0,0,0,NULL);//40为跳动时字体的大小
int offset;
offset=tm.tmHeight+tm.tmExternalLeading+20;//设置y偏移量，也就是字体跳动的高度
//输出第一部分
int i;
y=y+offset;//初始位置x=0,y=offset+y;
::SelectObject(hdc,hf);
for( i=0;i<nchar;i++)
{
x=x+tm.tmAveCharWidth*2;//字体之间的行间距
TextOut(hdc,x,y,&textbuf[i],1);
}
//往上跳的字符（第二部分）
x=x+tm.tmAveCharWidth*2;
y=y-offset;
::SelectObject(hdc,hfbig);
::SetTextColor(hdc,RGB(255,0,0));
::TextOut(hdc,x,y,&textbuf[nchar],1);
//输出第三部分
y=y+offset;
::SelectObject(hdc,hf);
::SetTextColor(hdc,RGB(0,0,0));
for(i=nchar+1;i<len;i++)
{
x=x+tm.tmAveCharWidth*2;
::TextOut(hdc,x,y,&textbuf[i],1);
}
EndPaint(hWnd, &ps);
break;
case WM_DESTROY:
PostQuitMessage(0);
::KillTimer(hWnd,1);
break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
return 0;
}
// Mesage handler for about box.
LRESULT CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
switch (message)
{
case WM_INITDIALOG:
return TRUE;
case WM_COMMAND:
if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL)
{
EndDialog(hDlg, LOWORD(wParam));
return TRUE;
}
break;
}
return FALSE;
}
标签：11,06,int,hWnd,WM,return,2021,hInstance,wcex 来源： https://blog.csdn.net/qq_45656196/article/details/121183437
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