調 用API 函 數 設 計ABOUT 窗 口 (轉)

調 用API 函 數 設 計ABOUT 窗 口 (轉)[@more@]

 

調 用 函 數 設 計ABOUT 窗 口

作者：蔡 可 訓

98 系 統 的 許 多 軟 件 中 都 包 含 一 個windows 風 格 的about 窗 口， 它 向 用 戶 反 映 了 當 前 系 統 的 一 些 基 本 信 息， 其 中 顯 示 有 關windows 及 其 應 用 軟 件 的 版 本、 版 權 和 系 統 的 工 作 狀 態 等 信 息。 筆 者 用6.0 通 過 調 用API 函 數 設 計 應 用 系 統 的ABOUT 窗 口。 效 果 如 圖1。( 略)

1 ． 建 立 含 有 如 下 控 件 的 窗 體：

控 件 NAME CAPTION 窗 體 FORM1 用.0 設 計ABOUT 窗 口 命 令 按 鈕 COMMAND1 關 於 銷 售 管 理 系 統

2 ． 程 序 清 單：

---- Private Declare Function GetWindow Lib "user32" (ByVal hwnd As Long, ByVal nIndex As Long) As Integer

---- Private Declare Function About Lib "shell32.dll" Alias "ShellAboutA" (ByVal hwnd As Long, ByVal szApp As String, ByVal szOtherStuff As String, ByVal hIcon As Long) As Long

---- Private Declare Function ExtractIcon Lib "shell32.dll" Alias "ExtractIconA" (ByVal hinst As Long, ByVal lpszExeFileName As String, ByVal nIconIndex As Long) As Long Private Declare Function GetDiskFreeSpace Lib "kernel32" Alias "GetDiskFreeSpaceA" (ByVal lpPathName As String, lpSectorsPerCluster As Long, lpBytesPerSector As Long, lpNumberOfFreeClusters As Long, lpTotalNumberOfClusters As Long) As Long Private Declare Function GetDriveType Lib "kernel32" Alias "GetDriveTypeA" (ByVal nDrive As String) As Long

---- Private Declare Sub GetSystemInfo Lib "kernel32" (lpSystemInfo As SYSTEM_INFO) Private Declare Function GetSystemMetrics Lib "user32" (ByVal nIndex As Long) As Long

Private Const GWL_EXSTYLE = (-20) Private Const GWL_STYLE = (-16) Private Const GWL_WNDPROC = (-4) Private Const GWL_HINSTANCE = (-6) Private Type SYSTEM_INFO dwOemID As Long dwPageSize As Long lpMinimumApplicationAddress As Long lpMaximumApplicationAddress As Long dwActiveProcessorMask As Long dwNumberOrfProcessors As Long dwProcessorType As Long dwAllocationGranularity As Long dwReserved As Long End Type Private Const SM_CXSCREEN = 0 Private Const SM_CYSCREEN = 1 Private Sub Command1_Click() Dim hinst As Long Dim icons As Long Dim abouts As Long Dim dispx As String Dim dispy As String Dim cps As String Dim space1 As String Dim space2 As String hinst = GetWindowWord(Me.hwnd, GWL_HINSTANCE) icons = ExtractIcon(hinst, "d:fpw26foxprow.exe", 0) Dim sysinfo As SYSTEM_INFO Dim cls1 As Long Dim cls2 As Long Dim secs As Long Dim bytes As Long Dim buffs As String buff = "C:" x = GetDriveType(buffs) x = GetDiskFreeSpace(buffs, secs, bytes, cls1, cls2) cls1 = cls1 * secs * bytes cls2 = cls2 * secs * bytes space1 = "C器總共容量： " + Format$(cls2/1024, "#, #") + "千位元組" space2 = "C驅動器可用容量： " + Format$(cls1/1024, "#, #") + "千位元組" x = GetSystemMetrics(SM_CXSCREEN) dispx = "顯示器解析度：" + Str$(x) x = GetSystemMetrics(SM_CYSCREEN) dispy = Str$(x) Call GetSystemInfo(sysinfo) Case sysinfo.dwProcessorType Case 386 s = "型別:386" Case 486 cpus = "處理器型別:486" Case 586 cpus = "處理器型別:586" End Select abouts = ShellAbout(Me.hwnd, "演示", "銷售管理V2.0版權所有[C]1998-1999蔡可訓" & Chr$(13) & Chr$(10) & space1 & Chr$(13) & Chr$(10) & space2 & Chr$(13) & Chr$(10) & cpus + " " + dispx + "*" + dispy , icons) End Sub

---- 以 上 程 序 在WINDOWS98, 6.0 FOR WINDOWS 環 境 下 運 行 通 過. 用 戶 可 以 將 其 加 入 應 用 系 統 的ABOUT 菜 單 項， 通 過 菜 單 項 調 用 它， 效 果 更 好。