GetTitleBarInfo Function--------------------------------------------------------------------------------The GetTitleBarInfo function retrieves information about the specified title bar.SyntaxBOOL GetTitleBarInfo( HWND hwnd, PTITLEBARINFO pti ); Parametershwnd [in] Handle to the title bar whose information is to be retrieved. pti [out] Pointer to a TITLEBARINFO structure to receive the information. Note that you must set TITLEBARINFO.cbSize to sizeof(TITLEBARINFO) before calling this function. Return ValueIf the function succeeds, the return value is nonzero.If the function fails, the return value is zero. To get extended error information, call GetLastError. Function InformationHeader Declared in Winuser.h, include Windows.h Import library User32.lib Minimum operating systems Windows 98, Windows NT 4.0 SP6
GetTitleBarInfo Function--------------------------------------------------------------------------------The GetTitleBarInfo function retrieves information about the specified title bar.SyntaxBOOL GetTitleBarInfo( HWND hwnd, PTITLEBARINFO pti ); Parametershwnd [in] Handle to the title bar whose information is to be retrieved. pti [out] Pointer to a TITLEBARINFO structure to receive the information. Note that you must set TITLEBARINFO.cbSize to sizeof(TITLEBARINFO) before calling this function. Return ValueIf the function succeeds, the return value is nonzero.If the function fails, the return value is zero. To get extended error information, call GetLastError. Function InformationHeader Declared in Winuser.h, include Windows.h Import library User32.lib Minimum operating systems Windows 98, Windows NT 4.0 SP6
PTITLEBARINFO pti
);
Parametershwnd
[in] Handle to the title bar whose information is to be retrieved.
pti
[out] Pointer to a TITLEBARINFO structure to receive the information. Note that you must set TITLEBARINFO.cbSize to sizeof(TITLEBARINFO) before calling this function.
Return ValueIf the function succeeds, the return value is nonzero.If the function fails, the return value is zero. To get extended error information, call GetLastError.
Function InformationHeader Declared in Winuser.h, include Windows.h
Import library User32.lib
Minimum operating systems Windows 98, Windows NT 4.0 SP6
PTITLEBARINFO pti
);
Parametershwnd
[in] Handle to the title bar whose information is to be retrieved.
pti
[out] Pointer to a TITLEBARINFO structure to receive the information. Note that you must set TITLEBARINFO.cbSize to sizeof(TITLEBARINFO) before calling this function.
Return ValueIf the function succeeds, the return value is nonzero.If the function fails, the return value is zero. To get extended error information, call GetLastError.
Function InformationHeader Declared in Winuser.h, include Windows.h
Import library User32.lib
Minimum operating systems Windows 98, Windows NT 4.0 SP6
【VB声明】
Private Declare Function GetSystemMetrics Lib "user32" Alias "GetSystemMetrics" (ByVal nIndex As Long) As Long【说明】
返回与windows环境有关的信息 【返回值】
Long，取决于具体的常数索引 【备注】
常数 SM_ARRANGE, SM_CLEANBOOT, SM_CMETRICS, SM_C?MAXIMIZED,
SM_C?MAXTRACK, SM_C?SIZEFRAME, SM_C?SMICON, SM_C?SMSIZE, SM_CYSMCAPTION, SM_SECURE,
SM_SHOWSOUNDS, and SM_SLOWMACHINE 未获 NT 3.51 及更早版本的支持【参数表】
nIndex --------- Long，常数，指定欲获取的信息；如下表所示
nIndex常数设置
常数定义
取得信息
SM_ARRANGE
设置windows如何排列最小化窗口的一个标志。参考api32.txt中的ARW常数
SM_CLEANBOOT
指定启动模式。0=普通模式；1=带网络支持的安全模式
SM_CMETRICS
可用系统环境的数量
SM_CMOUSEBUTTON
鼠标按钮（按键）的数量。如没有鼠标，就为零
SM_CXBORDER, SM_CYBORDER
尺寸不可变边框的大小
SM_CXCURSOR, SM_CYCURSOR
标准指针大小
SM_CXDLGFRAME, SM_CYDLGFRAME
对话框边框的大小
SM_CXDOUBLECLK, SM_CYDOUBLECLK
双击区域的大小（参考注解）
SM_CXFRAME, SM_CYFRAME
尺寸可变边框的大小（在win95和nt 4.0中使用SM_C?FIXEDFRAME）
SM_CXFULLSCREEN, SM_CYFULLSCREEN
最大化窗口客户区的大小
SM_CXHSCROLL, SM_CYHSCROLL
水平滚动条上的箭头大小
SM_CXHTHUMB, SM_CYHTHUMB
滚动块在水平滚动条上的大小
SM_CXICON, SM_CYICON
标准图标的大小
SM_CXICONSPACING, SM_CYICONSPACING
桌面图标之间的间隔距离。在win95和nt 4.0中是指大图标的间距
SM_CXMAXIMIZED, SM_CYMAXIMIZED
最大化窗口的默认尺寸
SM_CXMAXTRACK, SM_CYMAXTRACK
改变窗口大小时，最大的轨迹宽度
SM_CXMENUCHECK, SM_CYMENUCHECK
菜单复选号位图的大小
SM_CXMENUSIZE, SM_CYMENUSIZE
菜单栏上的按钮大小
SM_CXMIN, SM_CYMIN
窗口的最小尺寸
SM_CXMINIMIZED, SM_CYMINIMIZED
最小化的窗口必须填充进去的一个矩形小于或等于SM_C?ICONSPACING
SM_CXMINTRACK, SM_CYMINTRACK
窗口的最小轨迹宽度
SM_CXSCREEN, SM_CYSCREEN
屏幕大小
SM_CXSIZE, SM_CYSIZE
标题栏位图的大小
SM_CXSIZEFRAME, SM_CYSIZEFRAME
具有WS_THICKFRAME样式的窗口的大小
SM_CXSMICON, SM_CYSMICON
小图标的大小
SM_CXSMSIZE, SM_CYSMSIZE
小标题按钮的大小
SM_CXVSCROLL, SM_CYVSCROLL
垂直滚动条中的箭头按钮的大小
SM_CYCAPTION
窗口标题的高度
SM_CYKANJIWINDOW
Kanji窗口的大小（Height of Kanji window）
SM_CYMENU
菜单高度
SM_CYSMCAPTION
小标题的高度
SM_CYVTHUMB
垂直滚动条上滚动块的高度
SM_DBCSENABLED
如支持双字节则为TRUE
SM_DEBUG
如windows的调试版正在运行，则为TRUE
SM_MENUDROPALIGNMENT
如弹出式菜单对齐菜单栏项目的左侧，则为零
SM_MIDEASTENABLED
允许了希伯来和阿拉伯语
SM_MOUSEPRESENT
如安装了鼠标则为TRUE
SM_MOUSEWHEELPRESENT
如安装了带轮鼠标则为TRUE；只适用于nt 4.0
SM_NETWORK
如安装了网络，则设置位0。其他位保留未用
SM_PENWINDOWS
如装载了支持笔窗口的DLL，则表示笔窗口的句柄
SM_SECURE
如安装了安全（保密）机制，则为TRUE
SM_SHOWSOUNDS
强制视觉提示播放声音
SM_SLOWMACHINE
系统速度太慢，但仍在运行中（System is too slow for effective
use but is being run anyway）
SM_SWAPBUTTON
如左右鼠标键已经交换，则为TRUE