6Windows程序设计
6、 1 键盘消息
// 4_4_例子Sysmets.cpp : 定义应用程序的入口点。//#include
"pch.h"#include
"framework.h"#include
"4_4_例子Sysmets.h"#include
"data.h"#define MAX_LOADSTRING 100
// 全局变量:
HINSTANCE hInst; // 当前实例
WCHAR szTitle[MAX_LOADSTRING]; // 标题栏文本
WCHAR szWindowClass[MAX_LOADSTRING]; // 主窗口类名
// 此代码模块中包含的函数的前向声明:
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 wWinMain(_In_ HINSTANCE hInstance,
_In_opt_ HINSTANCE hPrevInstance,
_In_ LPWSTR lpCmdLine,
_In_ int nCmdShow)
{
UNREFERENCED_PARAMETER(hPrevInstance);
UNREFERENCED_PARAMETER(lpCmdLine);
// TODO: 在此处放置代码。
// 初始化全局字符串
LoadStringW(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);
LoadStringW(hInstance, IDC_MY44SYSMETS, szWindowClass, MAX_LOADSTRING);
MyRegisterClass(hInstance);
// 执行应用程序初始化:
if (!InitInstance (hInstance, nCmdShow))
{
return FALSE;
}
HACCEL hAccelTable = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDC_MY44SYSMETS));
MSG msg;
// 主消息循环:
while (GetMessage(&msg, nullptr, 0, 0))
{
if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
return (int) msg.wParam;
}
//
// 函数: MyRegisterClass()
//
// 目标: 注册窗口类。
//
ATOM MyRegisterClass(HINSTANCE hInstance)
{
WNDCLASSEXW 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_MY44SYSMETS));
wcex.hCursor = LoadCursor(nullptr, IDC_ARROW);
wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
wcex.lpszMenuName = NULL;//MAKEINTRESOURCEW(IDC_MY44SYSMETS);
wcex.lpszClassName = szWindowClass;
wcex.hIconSm = LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_SMALL));
return RegisterClassExW(&wcex);
}
//
// 函数: InitInstance(HINSTANCE, int)
//
// 目标: 保存实例句柄并创建主窗口
//
// 注释:
//
// 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口。
//
BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
{
hInst = hInstance; // 将实例句柄存储在全局变量中
HWND hWnd = CreateWindowW(szWindowClass, TEXT("Get System Metrics NO.1"), WS_OVERLAPPEDWINDOW | WS_VSCROLL,
CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, nullptr, nullptr, hInstance, nullptr);
if (!hWnd)
{
return FALSE;
}
ShowWindow(hWnd, nCmdShow);
UpdateWindow(hWnd);
return TRUE;
}
//
// 函数: WndProc(HWND, UINT, WPARAM, LPARAM)
//
// 目标: 处理主窗口的消息。
//
// WM_COMMAND - 处理应用程序菜单
// WM_PAINT - 绘制主窗口
// WM_DESTROY - 发送退出消息并返回
//
//
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
switch (message)
{
staticint cxChar, cxCaps, cyChar, iVScrollPos,cyClient;
PAINTSTRUCT ps;
HDC hdc;
TCHAR szBuffer[10];
TEXTMETRIC tm;
size_t y;
SCROLLINFO si;
size_t iVertPos;
size_t iPaintBeg, iPaintEnd;
case WM_CREATE:
{
hdc = GetDC(hWnd);
GetTextMetrics(hdc,&tm);
cxChar = tm.tmAveCharWidth;
//变宽的字体是小写字体的1.5倍
cxCaps = (tm.tmPitchAndFamily & 1 ? 3 : 2) * cxChar / 2;
//字体的高度 + 外部的间距(字体设计的人推荐的加)
cyChar = tm.tmHeight + tm.tmExternalLeading;
ReleaseDC(hWnd, hdc);
iVScrollPos = 0;
//SetScrollRange(hWnd, SB_VERT, 0, NUMLINES - 1, FALSE);
//SetScrollPos(hWnd, SB_VERT, iVScrollPos, TRUE);
return0;
}
case WM_SIZE:
//客户区的高度
cyClient = HIWORD(lParam);
si.cbSize = sizeof(si);
si.fMask = SIF_RANGE | SIF_PAGE;
//客户区一页有多少行
si.nPage = cyClient / cyChar;
si.nMin = 0;
si.nMax = NUMLINES;
SetScrollInfo(hWnd, SB_VERT, &si, true);
break;
case WM_COMMAND:
{
int wmId = LOWORD(wParam);
// 分析菜单选择:
switch (wmId)
{
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: 在此处添加使用 hdc 的任何绘图代码...
si.cbSize = sizeof(si);
si.fMask = SIF_POS;
GetScrollInfo(hWnd, SB_VERT, &si);
iVertPos = si.nPos;
//无效区域开始位置
iPaintBeg = max(0, iVertPos + ps.rcPaint.top/cyChar);
//无效区域结束位置
iPaintEnd = min(NUMLINES - 1, iVertPos + ps.rcPaint.bottom / cyChar);
for (int i = iPaintBeg; i <= iPaintEnd; ++i)
{
y = cyChar * (i - iVertPos);
TextOut(hdc, 0, y, sysmetrics[i].szLabel, lstrlen(sysmetrics[i].szLabel));
TextOut(hdc, 22 * cxCaps, y, sysmetrics[i].szDesc, lstrlen(sysmetrics[i].szDesc));
SetTextAlign(hdc, TA_RIGHT | TA_TOP);
TextOut(hdc, 22 * cxCaps + 40 * cxChar, y, szBuffer, wsprintf(szBuffer, TEXT("%5d"), GetSystemMetrics(sysmetrics[i].iIndex)));
SetTextAlign(hdc, TA_LEFT | TA_TOP);
}
EndPaint(hWnd, &ps);
}
break;
case WM_VSCROLL:
si.cbSize = sizeof(si);
si.fMask = SIF_ALL;
GetScrollInfo(hWnd,SB_VERT,&si);
iVertPos = si.nPos;
switch (LOWORD(wParam))
{
case SB_TOP:
si.nPos = si.nMin;
break;
case SB_BOTTOM:
si.nPos = si.nMax;
break;
case SB_LINEUP:
//iVScrollPos -= 1;
si.nPos -= 1;
break;
case SB_LINEDOWN:
//iVScrollPos += 1;
si.nPos += 1;
break;
case SB_PAGEUP:
//iVScrollPos -= cyClient / cyChar;
si.nPos -= si.nPage;
break;
case SB_PAGEDOWN:
//iVScrollPos += cyClient / cyChar;
si.nPos += si.nPage;
break;
//case SB_THUMBPOSITION:
case SB_THUMBTRACK:
//iVScrollPos = HIWORD(wParam);
si.nPos = si.nTrackPos;
break;
default:
break;
}
si.fMask = SIF_POS;
SetScrollInfo(hWnd, SB_VERT, &si, TRUE);
GetScrollInfo(hWnd, SB_VERT, &si);
if (si.nPos != iVertPos)
{
//刷新滚动窗口客户区的内容
ScrollWindow(hWnd, 0, cyChar*(iVertPos - si.nPos), NULL, NULL);
UpdateWindow(hWnd);
}
//iVScrollPos = max(0, min(iVScrollPos, NUMLINES - 1));
//if (iVScrollPos != GetScrollPos(hWnd,SB_VERT))
//{
// SetScrollPos(hWnd, SB_VERT, iVScrollPos, true);
// InvalidateRect(hWnd, NULL, TRUE);
// UpdateWindow(hWnd);
//}
break;
case WM_KEYDOWN:
switch (wParam)
{
case VK_DOWN:
SendMessage(hWnd, WM_VSCROLL, SB_LINEDOWN, 0);
break;
case VK_UP:
SendMessage(hWnd, WM_VSCROLL, SB_LINEUP, 0);
break;
case VK_HOME:
SendMessage(hWnd, WM_VSCROLL, SB_TOP, 0);
break;
case VK_END:
SendMessage(hWnd, WM_VSCROLL, SB_BOTTOM, 0);
break;
case VK_PRIOR:
SendMessage(hWnd, WM_VSCROLL, SB_PAGEUP, 0);
break;
case VK_NEXT:
SendMessage(hWnd, WM_VSCROLL, SB_PAGEDOWN, 0);
break;
default:
break;
}
return0;
case WM_DESTROY:
PostQuitMessage(0);
break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
return0;
}
// “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;
}
View Code
#pragma once//data.h 头文件内容
#define NUMLINES ((int) (sizeof sysmetrics / sizeof sysmetrics [0]))
struct
{
int iIndex;
TCHAR * szLabel;
TCHAR * szDesc;
}
sysmetrics[] =
{
SM_CXSCREEN, TEXT("SM_CXSCREEN"),
TEXT("Screen width in pixels"),
SM_CYSCREEN, TEXT("SM_CYSCREEN"),
TEXT("Screen height in pixels"),
SM_CXVSCROLL, TEXT("SM_CXVSCROLL"),
TEXT("Vertical scroll width"),
SM_CYHSCROLL, TEXT("SM_CYHSCROLL"),
TEXT("Horizontal scroll height"),
SM_CYCAPTION, TEXT("SM_CYCAPTION"),
TEXT("Caption bar height"),
SM_CXBORDER, TEXT("SM_CXBORDER"),
TEXT("Window border width"),
SM_CYBORDER, TEXT("SM_CYBORDER"),
TEXT("Window border height"),
SM_CXFIXEDFRAME, TEXT("SM_CXFIXEDFRAME"),
TEXT("Dialog window frame width"),
SM_CYFIXEDFRAME, TEXT("SM_CYFIXEDFRAME"),
TEXT("Dialog window frame height"),
SM_CYVTHUMB, TEXT("SM_CYVTHUMB"),
TEXT("Vertical scroll thumb height"),
SM_CXHTHUMB, TEXT("SM_CXHTHUMB"),
TEXT("Horizontal scroll thumb width"),
SM_CXICON, TEXT("SM_CXICON"),
TEXT("Icon width"),
SM_CYICON, TEXT("SM_CYICON"),
TEXT("Icon height"),
SM_CXCURSOR, TEXT("SM_CXCURSOR"),
TEXT("Cursor width"),
SM_CYCURSOR, TEXT("SM_CYCURSOR"),
TEXT("Cursor height"),
SM_CYMENU, TEXT("SM_CYMENU"),
TEXT("Menu bar height"),
SM_CXFULLSCREEN, TEXT("SM_CXFULLSCREEN"),
TEXT("Full screen client area width"),
SM_CYFULLSCREEN, TEXT("SM_CYFULLSCREEN"),
TEXT("Full screen client area height"),
SM_CYKANJIWINDOW, TEXT("SM_CYKANJIWINDOW"),
TEXT("Kanji window height"),
SM_MOUSEPRESENT, TEXT("SM_MOUSEPRESENT"),
TEXT("Mouse present flag"),
SM_CYVSCROLL, TEXT("SM_CYVSCROLL"),
TEXT("Vertical scroll arrow height"),
SM_CXHSCROLL, TEXT("SM_CXHSCROLL"),
TEXT("Horizontal scroll arrow width"),
SM_DEBUG, TEXT("SM_DEBUG"),
TEXT("Debug version flag"),
SM_SWAPBUTTON, TEXT("SM_SWAPBUTTON"),
TEXT("Mouse buttons swapped flag"),
SM_CXMIN, TEXT("SM_CXMIN"),
TEXT("Minimum window width"),
SM_CYMIN, TEXT("SM_CYMIN"),
TEXT("Minimum window height"),
SM_CXSIZE, TEXT("SM_CXSIZE"),
TEXT("Min/Max/Close button width"),
SM_CYSIZE, TEXT("SM_CYSIZE"),
TEXT("Min/Max/Close button height"),
SM_CXSIZEFRAME, TEXT("SM_CXSIZEFRAME"),
TEXT("Window sizing frame width"),
SM_CYSIZEFRAME, TEXT("SM_CYSIZEFRAME"),
TEXT("Window sizing frame height"),
SM_CXMINTRACK, TEXT("SM_CXMINTRACK"),
TEXT("Minimum window tracking width"),
SM_CYMINTRACK, TEXT("SM_CYMINTRACK"),
TEXT("Minimum window tracking height"),
SM_CXDOUBLECLK, TEXT("SM_CXDOUBLECLK"),
TEXT("Double click x tolerance"),
SM_CYDOUBLECLK, TEXT("SM_CYDOUBLECLK"),
TEXT("Double click y tolerance"),
SM_CXICONSPACING, TEXT("SM_CXICONSPACING"),
TEXT("Horizontal icon spacing"),
SM_CYICONSPACING, TEXT("SM_CYICONSPACING"),
TEXT("Vertical icon spacing"),
SM_MENUDROPALIGNMENT, TEXT("SM_MENUDROPALIGNMENT"),
TEXT("Left or right menu drop"),
SM_PENWINDOWS, TEXT("SM_PENWINDOWS"),
TEXT("Pen extensions installed"),
SM_DBCSENABLED, TEXT("SM_DBCSENABLED"),
TEXT("Double-Byte Char Set enabled"),
SM_CMOUSEBUTTONS, TEXT("SM_CMOUSEBUTTONS"),
TEXT("Number of mouse buttons"),
SM_SECURE, TEXT("SM_SECURE"),
TEXT("Security present flag"),
SM_CXEDGE, TEXT("SM_CXEDGE"),
TEXT("3-D border width"),
SM_CYEDGE, TEXT("SM_CYEDGE"),
TEXT("3-D border height"),
SM_CXMINSPACING, TEXT("SM_CXMINSPACING"),
TEXT("Minimized window spacing width"),
SM_CYMINSPACING, TEXT("SM_CYMINSPACING"),
TEXT("Minimized window spacing height"),
SM_CXSMICON, TEXT("SM_CXSMICON"),
TEXT("Small icon width"),
SM_CYSMICON, TEXT("SM_CYSMICON"),
TEXT("Small icon height"),
SM_CYSMCAPTION, TEXT("SM_CYSMCAPTION"),
TEXT("Small caption height"),
SM_CXSMSIZE, TEXT("SM_CXSMSIZE"),
TEXT("Small caption button width"),
SM_CYSMSIZE, TEXT("SM_CYSMSIZE"),
TEXT("Small caption button height"),
SM_CXMENUSIZE, TEXT("SM_CXMENUSIZE"),
TEXT("Menu bar button width"),
SM_CYMENUSIZE, TEXT("SM_CYMENUSIZE"),
TEXT("Menu bar button height"),
SM_ARRANGE, TEXT("SM_ARRANGE"),
TEXT("How minimized windows arranged"),
SM_CXMINIMIZED, TEXT("SM_CXMINIMIZED"),
TEXT("Minimized window width"),
SM_CYMINIMIZED, TEXT("SM_CYMINIMIZED"),
TEXT("Minimized window height"),
SM_CXMAXTRACK, TEXT("SM_CXMAXTRACK"),
TEXT("Maximum draggable width"),
SM_CYMAXTRACK, TEXT("SM_CYMAXTRACK"),
TEXT("Maximum draggable height"),
SM_CXMAXIMIZED, TEXT("SM_CXMAXIMIZED"),
TEXT("Width of maximized window"),
SM_CYMAXIMIZED, TEXT("SM_CYMAXIMIZED"),
TEXT("Height of maximized window"),
SM_NETWORK, TEXT("SM_NETWORK"),
TEXT("Network present flag"),
SM_CLEANBOOT, TEXT("SM_CLEANBOOT"),
TEXT("How system was booted"),
SM_CXDRAG, TEXT("SM_CXDRAG"),
TEXT("Avoid drag x tolerance"),
SM_CYDRAG, TEXT("SM_CYDRAG"),
TEXT("Avoid drag y tolerance"),
SM_SHOWSOUNDS, TEXT("SM_SHOWSOUNDS"),
TEXT("Present sounds visually"),
SM_CXMENUCHECK, TEXT("SM_CXMENUCHECK"),
TEXT("Menu check-mark width"),
SM_CYMENUCHECK, TEXT("SM_CYMENUCHECK"),
TEXT("Menu check-mark height"),
SM_SLOWMACHINE, TEXT("SM_SLOWMACHINE"),
TEXT("Slow processor flag"),
SM_MIDEASTENABLED, TEXT("SM_MIDEASTENABLED"),
TEXT("Hebrew and Arabic enabled flag"),
SM_MOUSEWHEELPRESENT, TEXT("SM_MOUSEWHEELPRESENT"),
TEXT("Mouse wheel present flag"),
SM_XVIRTUALSCREEN, TEXT("SM_XVIRTUALSCREEN"),
TEXT("Virtual screen x origin"),
SM_YVIRTUALSCREEN, TEXT("SM_YVIRTUALSCREEN"),
TEXT("Virtual screen y origin"),
SM_CXVIRTUALSCREEN, TEXT("SM_CXVIRTUALSCREEN"),
TEXT("Virtual screen width"),
SM_CYVIRTUALSCREEN, TEXT("SM_CYVIRTUALSCREEN"),
TEXT("Virtual screen height"),
SM_CMONITORS, TEXT("SM_CMONITORS"),
TEXT("Number of monitors"),
SM_SAMEDISPLAYFORMAT, TEXT("SM_SAMEDISPLAYFORMAT"),
TEXT("Same color format flag")
};
View Code
6、 2 键盘消息 键盘参数
// 6-2-键盘示例1.cpp : 定义应用程序的入口点。//#include
"framework.h"#include
"6-2-键盘示例1.h"#define MAX_LOADSTRING 100
#define MAX_MSG 100
// 全局变量:
HINSTANCE hInst; // 当前实例
WCHAR szTitle[MAX_LOADSTRING]; // 标题栏文本
WCHAR szWindowClass[MAX_LOADSTRING]; // 主窗口类名
// 此代码模块中包含的函数的前向声明:
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 wWinMain(_In_ HINSTANCE hInstance,
_In_opt_ HINSTANCE hPrevInstance,
_In_ LPWSTR lpCmdLine,
_In_ int nCmdShow)
{
UNREFERENCED_PARAMETER(hPrevInstance);
UNREFERENCED_PARAMETER(lpCmdLine);
// TODO: 在此处放置代码。
// 初始化全局字符串
LoadStringW(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);
LoadStringW(hInstance, IDC_MY621, szWindowClass, MAX_LOADSTRING);
MyRegisterClass(hInstance);
// 执行应用程序初始化:
if (!InitInstance (hInstance, nCmdShow))
{
return FALSE;
}
HACCEL hAccelTable = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDC_MY621));
MSG msg;
// 主消息循环:
while (GetMessage(&msg, nullptr, 0, 0))
{
if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
return (int) msg.wParam;
}
//
// 函数: MyRegisterClass()
//
// 目标: 注册窗口类。
//
ATOM MyRegisterClass(HINSTANCE hInstance)
{
WNDCLASSEXW 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_MY621));
wcex.hCursor = LoadCursor(nullptr, IDC_ARROW);
wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
wcex.lpszMenuName = NULL;//MAKEINTRESOURCEW(IDC_MY621);
wcex.lpszClassName = szWindowClass;
wcex.hIconSm = LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_SMALL));
return RegisterClassExW(&wcex);
}
//
// 函数: InitInstance(HINSTANCE, int)
//
// 目标: 保存实例句柄并创建主窗口
//
// 注释:
//
// 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口。
//
BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
{
hInst = hInstance; // 将实例句柄存储在全局变量中
HWND hWnd = CreateWindowW(szWindowClass, szTitle, WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, nullptr, nullptr, hInstance, nullptr);
if (!hWnd)
{
return FALSE;
}
ShowWindow(hWnd, nCmdShow);
UpdateWindow(hWnd);
return TRUE;
}
//
// 函数: WndProc(HWND, UINT, WPARAM, LPARAM)
//
// 目标: 处理主窗口的消息。
//
// WM_COMMAND - 处理应用程序菜单
// WM_PAINT - 绘制主窗口
// WM_DESTROY - 发送退出消息并返回
//
//
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
TEXTMETRIC tm;
PAINTSTRUCT ps;
HDC hdc;
staticint cxChar, cyChar;
staticint count;
static PMSG pmsg;
static TCHAR szTop[] = TEXT("Message Key Char Repeat Scan Ext ALT Prve Tran");
static TCHAR szUnd[] = TEXT("_______ ___ ____ ______ ____ ___ ___ ____ ____");
static TCHAR* szMessage[] = {
TEXT("WM_KEYDOWN"),
TEXT("WM_KEYUP"),
TEXT("WM_CHAR"),
TEXT("WM_DEADCHAR"),
TEXT("WM_SYSKEYDOWM"),
TEXT("WM_SYSKEYUP"),
TEXT("WM_SYSCHAR"),
TEXT("WM_SYSDEADCHAR")
};
TCHAR szBuffer[128], szKeyName[32];
static TCHAR * szFormat[2] = {
//keydown 和 keyup模式
TEXT("%-13s %3d %-15s%c%6u %4d %3s %3s %4s %4s"),
//keychar 模式
TEXT("%-13s 0x%04X%1s%c %6u %4d %3s %3s %4s %4s")
};
int iType;
static TCHAR *szYes = TEXT("Yes");
static TCHAR *szNo = TEXT("No");
static TCHAR *szDown = TEXT("Down");
static TCHAR *szUp = TEXT("Up");
switch (message)
{
case WM_CREATE:
hdc = GetDC(hWnd);
SelectObject(hdc, GetStockObject(SYSTEM_FIXED_FONT));
GetTextMetrics(hdc, &tm);
cxChar = tm.tmAveCharWidth;
cyChar = tm.tmHeight;
ReleaseDC(hWnd, hdc);
if (pmsg)
free(pmsg);
pmsg = (PMSG)malloc(MAX_MSG * sizeof(MSG));
count = 0;
break;
case WM_KEYDOWN:
case WM_KEYUP:
case WM_CHAR:
case WM_SYSKEYDOWN:
case WM_SYSKEYUP:
case WM_DEADCHAR:
case WM_SYSCHAR:
case WM_SYSDEADCHAR:
for (size_t i = count; i > 0; i--)
{
pmsg[i] = pmsg[i - 1];
}
pmsg[0].hwnd = hWnd;
pmsg[0].message = message;
pmsg[0].wParam = wParam;
pmsg[0].lParam = lParam;
count++;
InvalidateRect(hWnd, NULL, true);
break;
case WM_COMMAND:
{
int wmId = LOWORD(wParam);
// 分析菜单选择:
switch (wmId)
{
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: 在此处添加使用 hdc 的任何绘图代码...
//系统等宽字体
SelectObject(hdc, GetStockObject(SYSTEM_FIXED_FONT));
SetBkMode(hdc, TRANSPARENT); //背景透明
TextOut(hdc,0,0,szTop,lstrlen(szTop));
TextOut(hdc, 0, 0, szUnd, lstrlen(szUnd));
for (size_t i = 0; i < min(MAX_MSG,count); i++)
{
SetTextColor(hdc, RGB(0, 0, 0));
iType = pmsg[i].message == WM_CHAR ||
pmsg[i].message == WM_SYSCHAR ||
pmsg[i].message == WM_DEADCHAR ||
pmsg[i].message == WM_SYSDEADCHAR;
GetKeyNameText(pmsg[i].lParam, szKeyName, sizeof(szKeyName) / sizeof(TCHAR));
TextOut(hdc, 0, (i + 1)*cyChar,szBuffer,
wsprintf(szBuffer,szFormat[iType],
szMessage[pmsg[i].message - WM_KEYFIRST],
pmsg[i].wParam,
(PSTR)(iType ? TEXT("") : szKeyName),
(TCHAR)(iType ? pmsg[i].wParam : ""),
LOWORD(pmsg[i].lParam),
HIWORD(pmsg[i].lParam) & 0x00ff,
0x01000000 & pmsg[i].lParam ? szYes : szNo,
0x20000000 & pmsg[i].lParam ? szYes : szNo,
0x40000000 & pmsg[i].lParam ? szDown : szUp,
0x80000000 & pmsg[i].lParam ? szUp : szDown
));
SetTextColor(hdc, RGB(255, 0, 0));
TextOut(hdc, 0, (i + 1)*cyChar, TEXT("__________"), lstrlen(TEXT("__________")));
}
EndPaint(hWnd, &ps);
}
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
return0;
}
// “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;
}
View Code
以上是 6Windows程序设计 的全部内容， 来源链接： utcz.com/z/520451.html
