VC常用操作源码汇总.pdf

I

Category

CD-ROM........................................................................................................................................... 1

关闭计算机 ....................................................................................................................................... 1

重启计算机 ....................................................................................................................................... 1

枚举所有字体 ................................................................................................................................... 1

只运行一个程序实例 ....................................................................................................................... 2

得到鼠标位置 ................................................................................................................................... 2

显示和隐藏程序菜单 ....................................................................................................................... 3

剪切板上通过增强元文件拷贝图像数据 ....................................................................................... 8

剪切板上文本数据的传送 ............................................................................................................... 8

捕捉屏幕图像到剪切板中 ............................................................................................................... 9

将位图缩放显示 ............................................................................................................................. 11

改变对话框中控件的颜色 ............................................................................................................. 12

修改窗口外观 ................................................................................................................................. 14

获得应用程序主窗口的指针 ......................................................................................................... 14

确定应用程序的路径 ..................................................................................................................... 14

获得其他程序的图标 ..................................................................................................................... 15

获得各种目录信息 ......................................................................................................................... 15

程序保持极小状态 ......................................................................................................................... 18

移动窗口 ......................................................................................................................................... 18

重置窗口的大小 ............................................................................................................................. 18

单击窗口标题栏以外区域使窗口移动 ......................................................................................... 18

改变视窗的背景颜色 ..................................................................................................................... 19

防止主框窗口在其说明中显示活动的文档名 ............................................................................. 20

获取有关窗口正在处理的当前消息的信息 ................................................................................. 20

代码中获取工具条和状态条的指针 ............................................................................................. 21

使能和禁止工具条的工具提示 ..................................................................................................... 21

如何创建一个不规则形状的窗口 ................................................................................................. 21

II

获取一个对话控件的指针 ............................................................................................................. 27

改变控件的字体 ............................................................................................................................. 27

OLE 控件中使用 OLE_COLOR 数据类型 ................................................................................... 28

在不使用通用文件打开对话的情况下如何显示一个文件列表 ................................................. 28

旋转按钮控件 ................................................................................................................................. 29

用位图显示下压按钮 ..................................................................................................................... 29

获取 GDI 对象的属性信息 ............................................................................................................ 33

实现一个橡皮区矩形 ..................................................................................................................... 34

更新翻转背景颜色的文本 ............................................................................................................. 35

创建一个具有特定点大小的字体 ................................................................................................. 36

如何计算一个串的大小 ................................................................................................................. 36

显示旋转文本 ................................................................................................................................. 37

显示包含标签字符的串 ................................................................................................................. 38

串太长时如何在其末尾显示一个省略号 ..................................................................................... 39

为什么即使调用 EnableMenuItem 菜单项后，菜单项还处于禁止状态 ................................... 39

在用户环境中如何确定系统显示元素的颜色 ............................................................................. 40

我怎样才能建立一个等待光标 ..................................................................................................... 43

访问桌面窗口 ................................................................................................................................. 44

怎样用 COLORREF ....................................................................................................................... 44

在应用程序中循环浏览已经打开的文档、视图 ......................................................................... 45

MFC 在窗口标题栏 ....................................................................................................................... 45

1

CD-ROM

打开：

mciSendString("Set cdAudio door open wait",NULL,0,NULL);

关闭：

mciSendString("Set cdAudio door closed wait",NULL,0,NULL);

关闭计算机

OSVERSIONINFO OsVersionInfo; // 包含操作系统版本信息的数据结构

OsVersionInfo.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);

if(OsVersionInfo.dwPlatformId == VER_PLA TFORM_WIN32_WINDOWS)

}

重启计算机

typedef int (CALLBACK *SHUTDOWNDLG)(int); // 显示关机对话框函数的指针

HINSTANCE hInst = LoadLibrary("shell32.dll"); // 装入 shell32.dll

SHUTDOWNDLG ShutDownDialog; // 指向 shell32.dll 库中显示关机对话框函数的指针

if(hInst != NULL)

{

//获得函数的地址并调用之

ShutDownDialog = (SHUTDOWNDLG)GetProcAddress(hInst,(LPSTR)60);

(*ShutDownDialog)(0);

2

// Enumerate the font families

::EnumFontFamiliesEx((HDC) dc,&lf,

(FONTENUMPROC) EnumFontFamProc,(LPARAM) this,0);

//枚举函数

int CALLBACK EnumFontFamProc(LPENUMLOGFONT lpelf,

LPNEWTEXTMETRIC lpntm,DWORD nFontType,long lparam)

{

// Create a pointer to the dialog window

CDay7Dlg* pWnd = (CDay7Dlg*) lparam;

// add the font name to the list box

pWnd ->m_ctlFontList.AddString(lpelf ->elfLogFont.lfFaceName);

// Return 1 to continue font enumeration

HANDLE m_hMutex = ::CreateMutex(NULL,true,_T("MBD"));

if(GetLastError() == ERROR_ALREADY_EXISTS)

{

ReleaseMutex(m_hMutex);

::MessageBox(NULL,_T(" 应用程序已经运行 !"),_T(" 系统提示 "),MB_OK|MB_ICONSTOP);

return FALSE;

}

也可以用 CreateThread，方法同 CreateMutex

得到鼠标位置

CPoint pt;

GetCursorPos(&pt); // 得到位置

3

}

else

{

CMenu menu;

menu.LoadMenu(IDR_MAINFRAME); //// 显示菜单 也可改变菜单项

pWnd->SetMenu(&menu);

pWnd->DrawMenuBar();

b_m=true;

menu.Detach();

}

获取可执行文件的图标

窗口自动靠边程序演示

BOOL AdjustPos(CRect* lpRect)

{// 自动靠边

int iSX=GetSystemMetrics(SM_CXFULLSCREEN);

int iSY=GetSystemMetrics(SM_CYFULLSCREEN);

RECT rWorkArea;

BOOL bResult = SystemParametersInfo(SPI_GETWORKAREA, sizeof(RECT), &rWorkAre

a, 0);