VB代码转DELPHI,相信很多人都在找 -- HOWTO:为 Office 命令栏按钮创建透明图片 (分不够再加)(300

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VB代码转DELPHI,相信很多人都在找 &nbsp;-- &nbsp;HOWTO:为 Office 命令栏按钮创建透明图片 &nbsp;(分不够再加)(300分)<br />http://support.microsoft.com/?scid=kb;zh-cn;288771<br>HOWTO:为 Office 命令栏按钮创建透明图片<br>察看本文应用于的产品<br>文章编号 : 288771 <br>最后修改 : 2006年1月5日 <br>修订 : 4.2 <br>概要<br>自动化客户端(或 COM 加载项)通常需要向 Office 应用程序的工具栏或菜单添加一个按钮,并需要为该按钮图像关联一个图片。Office 公开了 CommandBars 集合和一个 CommandBarButton 对象,以允许编程人员以编程方式添加按钮;但是如果用户需要自定义图像,则很难提供一个保持透明背景的图像。<br><br>本文介绍如何向剪贴板中添加按钮图标和按钮屏蔽,以便 CommandBarButton 的 PasteFace 方法可以通过一种允许以透明背景绘制的方式存储位图。还介绍如何动态地创建透明屏蔽,以便您不必跟踪两个单独的位图。 <br>更多信息<br>Office CommandBarButtons 对它们的图像使用简单的位图。尽管这样做可以快速有效地呈现 Office CommandBars,但是也使得添加自定义图像变得比较困难,因为简单位图不保留透明度信息。要使图像显示为透明,需要一个单色位图“屏蔽”,以便让 Office 知道图像的哪些部分需要着色,哪些部分需要保持透明。当您在 Office 自身中编辑位图图像时,将会为您自动完成这一操作。当您以编程方式使用 Office 时,您需要自己提供屏蔽。<br><br>需要向 CommandBarButton 添加图像的自动化客户端通常使用 PasteFace 方法。由于此方法只使用简单位图,因此为了传递正确的透明度信息,您需要添加一个包含当前图像的屏蔽的特殊剪贴板格式。如果提供了此格式,Office 将以透明方式呈现图像。<br><br>Office XP 为 CommandBarButtons 提供了一个新的图片和屏蔽属性。这就使得进程内客户端(如宏代码或 COM 加载项)可以直接向按钮指派 StdPicture 对象而不使用剪贴板。 有关其他信息,请单击下面的文章编号,以查看 Microsoft 知识库中相应的文章: <br>286460 (http://support.microsoft.com/kb/286460/) HOWTO:Set the Mask and Picture Properties for Office XP CommandBars <br>但是,由于 Office 以外的限制,这种方法对进程外的自动化客户端不起作用,对需要与较低版本的 Office 保持兼容的客户端也不起作用。在这些情况下,类似于以下内容的代码仍然是适用的。<br><br>为了与当前的 Office 指导原则保持兼容,用于自定义 CommandBarButton 图片的位图图像应该是 256 色与设备无关的位图 (DIB),其大小应不超过 16 x 16 像素。您可以使用任何图形编辑器来创建这些位图,前提条件是,它可以将图像保存为标准的 Windows 位图(.bmp 或 .dib)文件;但要确保不要使用增强色图像,因为这些图像在某些分辨率较低的系统上可能会失真。此外,还要选择一种您的主要图像上不大可能出现的颜色,如洋红色(RGB:255、0、255),并使用它来填充那么您希望保持透明的区域。<br><br>要生成透明度屏蔽并将它添加到剪贴板中,您需要使用 Win32 应用程序编程接口 (API)。此示例假设您在 Microsoft Visual Basic 中工作,但也可以修改代码以在 Microsoft Visual C++ 中工作。<br><br><br>复制透明的 Office 工具栏图片<br>1. 使用 Microsoft 画图(或第三方图像编辑器)通过您选择的设计创建一个 256 色位图。图像的宽和高都不应超过 16 像素。 <br>2. 用洋红色(RGB:255、0、255)填充您希望保持透明的所有位图区域,然后将位图保存为 C:/MyTestPic.bmp。 <br>3. 启动 Visual Basic 并创建一个新的标准项目。默认情况下会创建 Form1。 <br>4. 向 Form1 中添加一个按钮,然后将以下代码添加到该按钮的 Click 事件中:Private Sub Command1_Click()<br> &nbsp; Dim oPic As StdPicture<br> &nbsp; Dim oWord As Object<br> &nbsp; Dim oCommandBar As Object<br> &nbsp; Dim oButton As Object<br> &nbsp; <br> ' Load the picture (.bmp file) to use for the button image.<br> &nbsp; Set oPic = LoadPicture(&quot;C:/MyTestPic.bmp&quot;)<br> &nbsp; <br> ' Start Microsoft Word for Automation and create a new<br> ' toolbar and button to test the PasteFace method.<br> &nbsp; Set oWord = CreateObject(&quot;Word.Application&quot;)<br> &nbsp; oWord.Visible = True<br> &nbsp; <br> &nbsp; Set oCommandBar = oWord.CommandBars.Add(&quot;Test Bar&quot;)<br> &nbsp; oCommandBar.Visible = True<br> &nbsp; <br> &nbsp; Set oButton = oCommandBar.Controls.Add(1)<br> &nbsp; With oButton<br> &nbsp; &nbsp; &nbsp;.Caption = &quot;Test Button&quot;<br> &nbsp; &nbsp; &nbsp;.Style = 1<br> &nbsp; &nbsp; &nbsp;<br> &nbsp; &nbsp;' Here we create a mask based on the image and put both<br> &nbsp; &nbsp;' the image and the mask on the clipboard. Any color areas with<br> &nbsp; &nbsp;' magenta will be transparent.<br> &nbsp; &nbsp; &nbsp;CopyBitmapAsButtonFace oPic, &HFF00FF<br> &nbsp; &nbsp; &nbsp;<br> &nbsp; &nbsp;' PasteFace will now add the image with transparency.<br> &nbsp; &nbsp; &nbsp;.PasteFace<br> &nbsp; &nbsp; &nbsp;<br> &nbsp; &nbsp; &nbsp;.Visible = True<br> &nbsp; End With<br> &nbsp; <br> &nbsp; MsgBox &quot;You have a new button with a transparent picture.&quot;, _<br> &nbsp; &nbsp; &nbsp; &nbsp; vbMsgBoxSetForeground<br> &nbsp; <br> &nbsp; Set oButton = Nothing<br> &nbsp; <br> &nbsp; If MsgBox(&quot;Do you want to delete the toolbar?&quot;, _<br> &nbsp; &nbsp; &nbsp; &nbsp;vbYesNo Or vbQuestion) = vbYes Then<br> &nbsp; &nbsp; &nbsp;oCommandBar.Delete<br> &nbsp; End If<br> &nbsp; <br> &nbsp; Set oCommandBar = Nothing<br> &nbsp; Set oWord = Nothing<br>End Sub<br> <br> <br>5. 在项目菜单上,单击添加模块,并将以下代码粘贴到新模块的代码窗口中:Option Explicit<br><br>Public Type BITMAPINFOHEADER '40 bytes<br> &nbsp; biSize As Long<br> &nbsp; biWidth As Long<br> &nbsp; biHeight As Long<br> &nbsp; biPlanes As Integer<br> &nbsp; biBitCount As Integer<br> &nbsp; biCompression As Long<br> &nbsp; biSizeImage As Long<br> &nbsp; biXPelsPerMeter As Long<br> &nbsp; biYPelsPerMeter As Long<br> &nbsp; biClrUsed As Long<br> &nbsp; biClrImportant As Long<br>End Type<br><br>Public Type BITMAP<br> &nbsp; bmType As Long<br> &nbsp; bmWidth As Long<br> &nbsp; bmHeight As Long<br> &nbsp; bmWidthBytes As Long<br> &nbsp; bmPlanes As Integer<br> &nbsp; bmBitsPixel As Integer<br> &nbsp; bmBits As Long<br>End Type<br><br>' ===================================================================<br>' &nbsp; GDI/Drawing Functions (to build the mask)<br>' ===================================================================<br>Private Declare Function GetDC Lib &quot;user32&quot; (ByVal hwnd As Long) As Long<br>Private Declare Function ReleaseDC Lib &quot;user32&quot; _<br> &nbsp;(ByVal hwnd As Long, ByVal hdc As Long) As Long<br>Private Declare Function DeleteDC Lib &quot;gdi32&quot; (ByVal hdc As Long) As Long<br>Private Declare Function CreateCompatibleDC Lib &quot;gdi32&quot; _<br> &nbsp;(ByVal hdc As Long) As Long<br>Private Declare Function CreateCompatibleBitmap Lib &quot;gdi32&quot; _<br> &nbsp;(ByVal hdc As Long, ByVal nWidth As Long, ByVal nHeight As Long) As Long<br>Private Declare Function CreateBitmap Lib &quot;gdi32&quot; _<br> &nbsp;(ByVal nWidth As Long, ByVal nHeight As Long, ByVal nPlanes As Long, _<br> &nbsp; ByVal nBitCount As Long, lpBits As Any) As Long<br>Private Declare Function SelectObject Lib &quot;gdi32&quot; _<br> &nbsp;(ByVal hdc As Long, ByVal hObject As Long) As Long<br>Private Declare Function DeleteObject Lib &quot;gdi32&quot; _<br> &nbsp;(ByVal hObject As Long) As Long<br>Private Declare Function GetBkColor Lib &quot;gdi32&quot; _<br> &nbsp;(ByVal hdc As Long) As Long<br>Private Declare Function SetBkColor Lib &quot;gdi32&quot; _<br> &nbsp;(ByVal hdc As Long, ByVal crColor As Long) As Long<br>Private Declare Function GetTextColor Lib &quot;gdi32&quot; _<br> &nbsp;(ByVal hdc As Long) As Long<br>Private Declare Function SetTextColor Lib &quot;gdi32&quot; _<br> &nbsp;(ByVal hdc As Long, ByVal crColor As Long) As Long<br>Private Declare Function BitBlt Lib &quot;gdi32&quot; _<br> &nbsp;(ByVal hDestDC As Long, ByVal x As Long, ByVal y As Long, _<br> &nbsp; ByVal nWidth As Long, ByVal nHeight As Long, ByVal hSrcDC As Long, _<br> &nbsp; ByVal xSrc As Long, ByVal ySrc As Long, ByVal dwRop As Long) As Long<br>Private Declare Function CreateHalftonePalette Lib &quot;gdi32&quot; _<br> &nbsp;(ByVal hdc As Long) As Long<br>Private Declare Function SelectPalette Lib &quot;gdi32&quot; _<br> &nbsp;(ByVal hdc As Long, ByVal hPalette As Long, _<br> &nbsp; ByVal bForceBackground As Long) As Long<br>Private Declare Function RealizePalette Lib &quot;gdi32&quot; _<br> &nbsp;(ByVal hdc As Long) As Long<br>Private Declare Function OleTranslateColor Lib &quot;oleaut32.dll&quot; _<br> &nbsp;(ByVal lOleColor As Long, ByVal lHPalette As Long, _<br> &nbsp; lColorRef As Long) As Long<br>Private Declare Function GetDIBits Lib &quot;gdi32&quot; _<br> &nbsp;(ByVal aHDC As Long, ByVal hBitmap As Long, ByVal nStartScan As Long, _<br> &nbsp; ByVal nNumScans As Long, lpBits As Any, lpBI As Any, _<br> &nbsp; ByVal wUsage As Long) As Long<br>Private Declare Function GetObjectAPI Lib &quot;gdi32&quot; Alias &quot;GetObjectA&quot; _<br> &nbsp;(ByVal hObject As Long, ByVal nCount As Long, lpObject As Any) As Long<br><br>' ===================================================================<br>' &nbsp; Clipboard APIs<br>' ===================================================================<br>Private Declare Function OpenClipboard Lib &quot;user32&quot; _<br> &nbsp;(ByVal hwnd As Long) As Long<br>Private Declare Function CloseClipboard Lib &quot;user32&quot; () As Long<br>Private Declare Function RegisterClipboardFormat Lib &quot;user32&quot; _<br> &nbsp;Alias &quot;RegisterClipboardFormatA&quot; (ByVal lpString As String) As Long<br>Private Declare Function GetClipboardData Lib &quot;user32&quot; _<br> &nbsp;(ByVal wFormat As Long) As Long<br>Private Declare Function SetClipboardData Lib &quot;user32&quot; _<br> &nbsp;(ByVal wFormat As Long, ByVal hMem As Long) As Long<br>Private Declare Function EmptyClipboard Lib &quot;user32&quot; () As Long<br>Private Const CF_DIB = 8<br><br>' ===================================================================<br>' &nbsp; Memory APIs (for clipboard transfers)<br>' ===================================================================<br>Private Declare Sub CopyMemory Lib &quot;kernel32&quot; Alias &quot;RtlMoveMemory&quot; _<br> &nbsp;(pDest As Any, pSource As Any, ByVal cbLength As Long)<br>Private Declare Function GlobalAlloc Lib &quot;kernel32&quot; _<br> &nbsp;(ByVal wFlags As Long, ByVal dwBytes As Long) As Long<br>Private Declare Function GlobalFree Lib &quot;kernel32&quot; _<br> &nbsp;(ByVal hMem As Long) As Long<br>Private Declare Function GlobalLock Lib &quot;kernel32&quot; _<br> &nbsp;(ByVal hMem As Long) As Long<br>Private Declare Function GlobalSize Lib &quot;kernel32&quot; _<br> &nbsp;(ByVal hMem As Long) As Long<br>Private Declare Function GlobalUnlock Lib &quot;kernel32&quot; _<br> &nbsp;(ByVal hMem As Long) As Long<br>Private Const GMEM_DDESHARE = &H2000<br>Private Const GMEM_MOVEABLE = &H2<br><br>' ===================================================================<br>' &nbsp;CopyBitmapAsButtonFace<br>'<br>' &nbsp;This is the public function to call to create a mask based on the<br>' &nbsp;bitmap provided and copy both to the clipboard. The first parameter<br>' &nbsp;is a standard VB Picture object. The second should be the color in<br>' &nbsp;the image you want to be made transparent.<br>'<br>' &nbsp;Note: This code sample does limited error handling and is designed<br>' &nbsp;for VB only (not VBA). You will need to make changes as appropriate<br>' &nbsp;to modify the code to suit your needs.<br>'<br>' ===================================================================<br>Public Sub CopyBitmapAsButtonFace(ByVal picSource As StdPicture, _<br> &nbsp;ByVal clrMaskColor As OLE_COLOR)<br> &nbsp; Dim hPal As Long<br> &nbsp; Dim hdcScreen As Long<br> &nbsp; Dim hbmButtonFace As Long<br> &nbsp; Dim hbmButtonMask As Long<br> &nbsp; Dim bDeletePal As Boolean<br> &nbsp; Dim lMaskClr As Long<br> &nbsp; <br> ' Check to make sure we have a valid picture.<br> &nbsp; If picSource Is Nothing Then GoTo err_invalidarg<br> &nbsp; If picSource.Type &lt;&gt; vbPicTypeBitmap Then GoTo err_invalidarg<br> &nbsp; If picSource.Handle = 0 Then GoTo err_invalidarg<br> &nbsp; <br> ' Get the DC for the display device we are on.<br> &nbsp; hdcScreen = GetDC(0)<br> &nbsp; hPal = picSource.hPal<br> &nbsp; If hPal = 0 Then<br> &nbsp; &nbsp; &nbsp;hPal = CreateHalftonePalette(hdcScreen)<br> &nbsp; &nbsp; &nbsp;bDeletePal = True<br> &nbsp; End If<br> &nbsp; <br> ' Translate the OLE_COLOR value to a GDI COLORREF value based on the palette.<br> &nbsp; OleTranslateColor clrMaskColor, hPal, lMaskClr<br> &nbsp; &nbsp; &nbsp;<br> ' Create a mask based on the image handed in (hbmButtonMask is the result).<br> &nbsp; CreateButtonMask picSource.Handle, lMaskClr, hdcScreen, _<br> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;hPal, hbmButtonMask<br> &nbsp; &nbsp; &nbsp; &nbsp; <br> ' Let VB copy the bitmap to the clipboard (for the CF_DIB).<br> &nbsp; Clipboard.SetData picSource, vbCFDIB<br><br> ' Now copy the Button Mask.<br> &nbsp; CopyButtonMaskToClipboard hbmButtonMask, hdcScreen<br> &nbsp; <br> ' Delete the mask and clean up (a copy is on the clipboard).<br> &nbsp; DeleteObject hbmButtonMask<br> &nbsp; If bDeletePal Then DeleteObject hPal<br> &nbsp; ReleaseDC 0, hdcScreen<br> &nbsp; <br>Exit Sub<br>err_invalidarg:<br> &nbsp; Err.Raise 481 'VB Invalid Picture Error<br>End Sub<br><br>' ===================================================================<br>' &nbsp;CreateButtonMask -- Internal helper function<br>' ===================================================================<br>Private Sub CreateButtonMask(ByVal hbmSource As Long, _<br> &nbsp;ByVal nMaskColor As Long, ByVal hdcTarget As Long, ByVal hPal As Long, _<br> &nbsp;ByRef hbmMask As Long)<br> &nbsp; <br> &nbsp; Dim hdcSource As Long<br> &nbsp; Dim hdcMask As Long<br> &nbsp; Dim hbmSourceOld As Long<br> &nbsp; Dim hbmMaskOld As Long<br> &nbsp; Dim hpalSourceOld As Long<br> &nbsp; Dim uBM As BITMAP<br> &nbsp; <br> ' Get some information about the bitmap handed to us.<br> &nbsp; GetObjectAPI hbmSource, 24, uBM<br> &nbsp; <br> ' Check the size of the bitmap given.<br> &nbsp; If uBM.bmWidth &lt; 1 Or uBM.bmWidth &gt; 30000 Then Exit Sub<br> &nbsp; If uBM.bmHeight &lt; 1 Or uBM.bmHeight &gt; 30000 Then Exit Sub<br> <br> ' Create a compatible DC, load the palette and the bitmap.<br> &nbsp; hdcSource = CreateCompatibleDC(hdcTarget)<br> &nbsp; hpalSourceOld = SelectPalette(hdcSource, hPal, True)<br> &nbsp; RealizePalette hdcSource<br> &nbsp; hbmSourceOld = SelectObject(hdcSource, hbmSource)<br><br> ' Create a black and white mask the same size as the image.<br> &nbsp; hbmMask = CreateBitmap(uBM.bmWidth, uBM.bmHeight, 1, 1, ByVal 0)<br> &nbsp; <br> ' Create a compatble DC for it and load it.<br> &nbsp; hdcMask = CreateCompatibleDC(hdcTarget)<br> &nbsp; hbmMaskOld = SelectObject(hdcMask, hbmMask)<br> &nbsp; <br> ' All you need to do is set the mask color as the background color<br> ' on the source picture, and set the forground color to white, and<br> ' then a simple BitBlt will make the mask for you.<br> &nbsp; SetBkColor hdcSource, nMaskColor<br> &nbsp; SetTextColor hdcSource, vbWhite<br> &nbsp; BitBlt hdcMask, 0, 0, uBM.bmWidth, uBM.bmHeight, hdcSource, _<br> &nbsp; &nbsp; &nbsp; 0, 0, vbSrcCopy<br> &nbsp; <br> ' Clean up the memory DCs.<br> &nbsp; SelectObject hdcMask, hbmMaskOld<br> &nbsp; DeleteDC hdcMask<br><br> &nbsp; SelectObject hdcSource, hbmSourceOld<br> &nbsp; SelectObject hdcSource, hpalSourceOld<br> &nbsp; DeleteDC hdcSource<br><br>End Sub<br><br>' ===================================================================<br>' &nbsp;CopyButtonMaskToClipboard -- Internal helper function<br>' ===================================================================<br>Private Sub CopyButtonMaskToClipboard(ByVal hbmMask As Long, _<br> &nbsp;ByVal hdcTarget As Long)<br> &nbsp; Dim cfBtnFace As Long<br> &nbsp; Dim cfBtnMask As Long<br> &nbsp; Dim hGMemFace As Long<br> &nbsp; Dim hGMemMask As Long<br> &nbsp; Dim lpData As Long<br> &nbsp; Dim lpData2 As Long<br> &nbsp; Dim hMemTmp As Long<br> &nbsp; Dim cbSize As Long<br> &nbsp; Dim arrBIHBuffer(50) As Byte<br> &nbsp; Dim arrBMDataBuffer() As Byte<br> &nbsp; Dim uBIH As BITMAPINFOHEADER<br> &nbsp; uBIH.biSize = 40<br> &nbsp; <br> ' Get the BITMAPHEADERINFO for the mask.<br> &nbsp; GetDIBits hdcTarget, hbmMask, 0, 0, ByVal 0&, uBIH, 0<br> &nbsp; CopyMemory arrBIHBuffer(0), uBIH, 40<br><br> ' Make sure it is a mask image.<br> &nbsp; If uBIH.biBitCount &lt;&gt; 1 Then Exit Sub<br> &nbsp; If uBIH.biSizeImage &lt; 1 Then Exit Sub<br> &nbsp; <br> ' Create a temp buffer to hold the bitmap bits.<br> &nbsp; ReDim Preserve arrBMDataBuffer(uBIH.biSizeImage + 4) As Byte<br> &nbsp; <br> ' Open the clipboard.<br> &nbsp; If Not CBool(OpenClipboard(0)) Then Exit Sub<br> &nbsp; <br> ' Get the cf for button face and mask.<br> &nbsp; cfBtnFace = RegisterClipboardFormat(&quot;Toolbar Button Face&quot;)<br> &nbsp; cfBtnMask = RegisterClipboardFormat(&quot;Toolbar Button Mask&quot;)<br> &nbsp; &nbsp; <br> ' Open DIB on the clipboard and make a copy of it for the button face.<br> &nbsp; hMemTmp = GetClipboardData(CF_DIB)<br> &nbsp; If hMemTmp &lt;&gt; 0 Then<br> &nbsp; &nbsp; &nbsp;cbSize = GlobalSize(hMemTmp)<br> &nbsp; &nbsp; &nbsp;hGMemFace = GlobalAlloc(&H2002, cbSize)<br> &nbsp; &nbsp; &nbsp;If hGMemFace &lt;&gt; 0 Then<br> &nbsp; &nbsp; &nbsp; &nbsp; lpData = GlobalLock(hMemTmp)<br> &nbsp; &nbsp; &nbsp; &nbsp; lpData2 = GlobalLock(hGMemFace)<br> &nbsp; &nbsp; &nbsp; &nbsp; CopyMemory ByVal lpData2, ByVal lpData, cbSize<br> &nbsp; &nbsp; &nbsp; &nbsp; GlobalUnlock hGMemFace<br> &nbsp; &nbsp; &nbsp; &nbsp; GlobalUnlock hMemTmp<br> &nbsp; &nbsp; &nbsp;<br> &nbsp; &nbsp; &nbsp; &nbsp; If SetClipboardData(cfBtnFace, hGMemFace) = 0 Then<br> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;GlobalFree hGMemFace<br> &nbsp; &nbsp; &nbsp; &nbsp; End If<br> &nbsp; &nbsp; &nbsp; &nbsp; <br> &nbsp; &nbsp; &nbsp;End If<br> &nbsp; End If<br> &nbsp; <br> ' Now get the mask bits and the rest of the header.<br> &nbsp; GetDIBits hdcTarget, hbmMask, 0, uBIH.biSizeImage, _<br> &nbsp; &nbsp; &nbsp; &nbsp;arrBMDataBuffer(0), arrBIHBuffer(0), 0<br> &nbsp; &nbsp; &nbsp;<br> ' Copy them to global memory and set it on the clipboard.<br> &nbsp; hGMemMask = GlobalAlloc(&H2002, uBIH.biSizeImage + 50)<br> &nbsp; If hGMemMask &lt;&gt; 0 Then<br> &nbsp; &nbsp; &nbsp; &nbsp; lpData = GlobalLock(hGMemMask)<br> &nbsp; &nbsp; &nbsp; &nbsp; CopyMemory ByVal lpData, arrBIHBuffer(0), 48<br> &nbsp; &nbsp; &nbsp; &nbsp; CopyMemory ByVal (lpData + 48), _<br> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; arrBMDataBuffer(0), uBIH.biSizeImage<br> &nbsp; &nbsp; &nbsp; &nbsp; GlobalUnlock hGMemMask<br> &nbsp; &nbsp; &nbsp; &nbsp; <br> &nbsp; &nbsp; &nbsp; &nbsp; If SetClipboardData(cfBtnMask, hGMemMask) = 0 Then<br> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;GlobalFree hGMemMask<br> &nbsp; &nbsp; &nbsp; &nbsp; End If<br> &nbsp; &nbsp; &nbsp; &nbsp; <br> &nbsp; End If<br> &nbsp; <br> ' We're done.<br> &nbsp; CloseClipboard<br> &nbsp; <br>End Sub<br> <br> <br>6. 按 F5 键运行 Visual Basic 应用程序。单击命令按钮以自动运行 Word,添加一个新工具栏和按钮,并粘贴透明的位图图像。
 

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C++的代码:<br><br>#include &quot;StdAfx.h&quot;<br>#include &quot;comaddinutil.h&quot;<br><br>CCOMAddinUtil::CCOMAddinUtil(void)<br>{<br>}<br><br>CCOMAddinUtil::~CCOMAddinUtil(void)<br>{<br>}<br><br>HANDLE CCOMAddinUtil::_DDBToDIB( CBitmap& bitmap, DWORD dwCompression, CPalette* pPal )<br>{<br> /* Taken from http://www.codeguru.com/bitmap/ddb_to_dib.shtml */<br> <br> BITMAP bm;<br> BITMAPINFOHEADER bi;<br> LPBITMAPINFOHEADER lpbi;<br> DWORD dwLen;<br> HANDLE hDIB;<br> HANDLE handle;<br> HDC hDC;<br> HPALETTE hPal;<br><br> ASSERT( bitmap.GetSafeHandle() );<br><br> // The function has no arg for bitfields<br> if ( dwCompression == BI_BITFIELDS )<br> return NULL;<br><br> // If a palette has not been supplied use defaul palette<br> hPal = (HPALETTE) pPal-&gt;GetSafeHandle();<br> if (hPal==NULL)<br> hPal = (HPALETTE) GetStockObject(DEFAULT_PALETTE);<br><br> // Get bitmap information<br> bitmap.GetObject(sizeof(bm),(LPSTR)&bm);<br><br> // Initialize the bitmapinfoheader<br> bi.biSize &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = sizeof(BITMAPINFOHEADER);<br> bi.biWidth &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= bm.bmWidth;<br> bi.biHeight &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = bm.bmHeight;<br> bi.biPlanes &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 1;<br> bi.biBitCount &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = bm.bmPlanes * bm.bmBitsPixel;<br> bi.biCompression &nbsp; &nbsp; &nbsp; &nbsp;= dwCompression;<br> bi.biSizeImage &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 0;<br> bi.biXPelsPerMeter &nbsp; &nbsp; &nbsp;= 0;<br> bi.biYPelsPerMeter &nbsp; &nbsp; &nbsp;= 0;<br> bi.biClrUsed &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;= 0;<br> bi.biClrImportant &nbsp; &nbsp; &nbsp; = 0;<br><br> // Compute the size of the &nbsp;infoheader and the color table<br> int nColors = (1 &lt;&lt; bi.biBitCount);<br> //if ( nColors &gt; 256 ) <br> // nColors = 0;<br> <br> if( bi.biBitCount &gt; 8 ) &nbsp;<br> &nbsp; &nbsp; &nbsp; &nbsp;nColors = 0;<br><br> dwLen = bi.biSize + nColors * sizeof(RGBQUAD);<br><br> // We need a device context to get the DIB from<br> hDC = ::GetDC(NULL);<br> hPal = SelectPalette(hDC,hPal,FALSE);<br> RealizePalette(hDC);<br><br> // Allocate enough memory to hold bitmapinfoheader and color table<br> hDIB = GlobalAlloc(GMEM_FIXED,dwLen);<br><br> if (!hDIB)<br> {<br> SelectPalette(hDC,hPal,FALSE);<br> ::ReleaseDC(NULL,hDC);<br> return NULL;<br> }<br><br> lpbi = (LPBITMAPINFOHEADER)hDIB;<br><br> *lpbi = bi;<br><br> // Call GetDIBits with a NULL lpBits param, so the device driver <br> // will calculate the biSizeImage field <br> GetDIBits(hDC, (HBITMAP)bitmap.GetSafeHandle(), 0L, (DWORD)bi.biHeight,<br> (LPBYTE)NULL, (LPBITMAPINFO)lpbi, (DWORD)DIB_RGB_COLORS);<br><br> bi = *lpbi;<br><br> // If the driver did not fill in the biSizeImage field, then compute it<br> // Each scan line of the image is aligned on a DWORD (32bit) boundary<br> if (bi.biSizeImage == 0)<br> {<br> bi.biSizeImage = ((((bi.biWidth * bi.biBitCount) + 31) & ~31) / 8) <br> * bi.biHeight;<br><br> // If a compression scheme is used the result may infact be larger<br> // Increase the size to account for this.<br> if (dwCompression != BI_RGB)<br> bi.biSizeImage = (bi.biSizeImage * 3) / 2;<br> }<br><br> // Realloc the buffer so that it can hold all the bits<br> dwLen += bi.biSizeImage;<br> if (handle = GlobalReAlloc(hDIB, dwLen, GMEM_MOVEABLE))<br> hDIB = handle;<br> else<br> {<br> GlobalFree(hDIB);<br><br> // Reselect the original palette<br> SelectPalette(hDC,hPal,FALSE);<br> ::ReleaseDC(NULL,hDC);<br> return NULL;<br> }<br><br> // Get the bitmap bits<br> lpbi = (LPBITMAPINFOHEADER)hDIB;<br><br> // FINALLY get the DIB<br> BOOL bGotBits = GetDIBits( hDC, (HBITMAP)bitmap.GetSafeHandle(),<br> 0L, &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; // Start scan line<br> (DWORD)bi.biHeight, &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; // # of scan lines<br> (LPBYTE)lpbi &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;// address for bitmap bits<br> + (bi.biSize + nColors * sizeof(RGBQUAD)),<br> (LPBITMAPINFO)lpbi, &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; // address of bitmapinfo<br> (DWORD)DIB_RGB_COLORS); &nbsp; &nbsp; &nbsp; &nbsp; // Use RGB for color table<br><br> if( !bGotBits )<br> {<br> GlobalFree(hDIB);<br><br> SelectPalette(hDC,hPal,FALSE);<br> ::ReleaseDC(NULL,hDC);<br> return NULL;<br> }<br><br> SelectPalette(hDC,hPal,FALSE);<br> ::ReleaseDC(NULL,hDC);<br> return hDIB;<br>} <br> &nbsp;<br>void CCOMAddinUtil::CopyTransBitmap(HBITMAP hSrcBmp)<br>{<br> /* Based on Microsoft Knowledge Base Article - 288771 &nbsp;*/<br><br> BITMAP &nbsp;bitmap;<br> HBITMAP hbmMask;<br> <br> // Get the BITMAP <br> GetObject(hSrcBmp, sizeof(BITMAP), &bitmap);<br> &nbsp; <br> // Get a device context<br> HDC hDC = GetDC(0);<br> <br> // *********************************************************<br> // Step #1: Create the Bitmap MASK <br> // *********************************************************<br><br> &nbsp; &nbsp; // Create memory DCs to work with.<br> &nbsp; &nbsp;HDC hdcMask = CreateCompatibleDC(hDC);<br> &nbsp; &nbsp;HDC hdcImage = CreateCompatibleDC(hDC);<br> &nbsp; &nbsp;<br> // Create a monochrome bitmap for the mask.<br> hbmMask = CreateBitmap(bitmap.bmWidth, bitmap.bmHeight, 1, 1, NULL);<br> &nbsp; &nbsp;<br> // Select the mono bitmap into its DC.<br> &nbsp; &nbsp;HBITMAP hbmOldMask = (HBITMAP)SelectObject(hdcMask, hbmMask);<br> &nbsp; &nbsp;<br> // Select the image bitmap into its DC.<br> &nbsp; &nbsp;HBITMAP hbmOldImage = (HBITMAP)SelectObject(hdcImage, hSrcBmp);<br> &nbsp; &nbsp;<br> // Set the transparency color to be the top-left pixel.<br> &nbsp; &nbsp;SetBkColor(hdcImage, GetPixel(hdcImage, 0, 0));<br> SetTextColor(hdcImage, RGB(255,255,255));<br><br> &nbsp; &nbsp;// Make the mask.<br> &nbsp; &nbsp;BitBlt(hdcMask, 0, 0, bitmap.bmWidth, bitmap.bmHeight, hdcImage, 0, 0, SRCCOPY);<br> &nbsp; &nbsp;<br> // Cleaup up<br> &nbsp; &nbsp;SelectObject(hdcMask, hbmOldMask);<br> &nbsp; &nbsp;SelectObject(hdcImage, hbmOldImage);<br> &nbsp; &nbsp;DeleteDC(hdcMask);<br> &nbsp; &nbsp;DeleteDC(hdcImage);<br> <br> // *********************************************************<br> // Step #2: Copy a DIB of the Source Image to the clipboard<br> // *********************************************************<br> &nbsp;<br> // Open the clipboard<br> OpenClipboard(0);<br><br> // Empty Clipboard<br> EmptyClipboard();<br> &nbsp;<br> // Covert BITMAP (DDB) to DIB <br> CBitmap tmpBitmap;<br> tmpBitmap.Attach(hSrcBmp);<br> HANDLE hDIB = _DDBToDIB(tmpBitmap, FALSE, NULL);<br> tmpBitmap.Detach();<br> <br> // Copy the DIB to the Clipboard<br> &nbsp; HANDLE hMemTmp1 = SetClipboardData(CF_DIB, hDIB);<br> &nbsp;<br> // *********************************************************<br> // Step #3: Populate Outlooks Special Clipboard formats<br> // *********************************************************<br> <br> // ' Get the cf for button face and mask.<br> long cfBtnFace = RegisterClipboardFormat(&quot;Toolbar Button Face&quot;);<br> long cfBtnMask = RegisterClipboardFormat(&quot;Toolbar Button Mask&quot;);<br><br> BITMAPINFO bi; <br> BYTE hbuf[50];<br> &nbsp;<br> // Initialize the header.<br> ZeroMemory(&bi, sizeof(BITMAPINFO));<br> //bi.bmiHeader.biSize = sizeof(BITMAPINFO);<br> bi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);<br> &nbsp; <br> // Get the BITMAPHEADERINFO for the mask.<br> GetDIBits(hDC, hbmMask, 0, 0, NULL, (BITMAPINFO*)&bi, 0);<br> CopyMemory(&hbuf[0], &bi.bmiHeader, 40);<br> <br> // Allocate space for the MASK Bitmap Bits<br> BYTE* pBMDataBuffer = (BYTE*)malloc(bi.bmiHeader.biSizeImage + 4);<br> ZeroMemory(pBMDataBuffer, bi.bmiHeader.biSizeImage + 4);<br> <br> // Get handle to the Source DIB recently created <br> HANDLE hMemTmp = GetClipboardData(CF_DIB);<br><br> // Copy the Source DIB to clipboard using the Button Face Format<br> if (hMemTmp) <br> {<br> SIZE_T cbSize &nbsp; &nbsp;= GlobalSize(hMemTmp);<br> HANDLE hGMemFace = GlobalAlloc(GMEM_ZEROINIT | GMEM_SHARE | GMEM_FIXED, cbSize);<br><br> if (hGMemFace)<br> {<br> LONG* lpData &nbsp;= (LONG*)GlobalLock(hMemTmp);<br> LONG* lpData2 = (LONG*)GlobalLock(hGMemFace);<br> CopyMemory(lpData2, lpData, cbSize);<br> GlobalUnlock(hGMemFace);<br> GlobalUnlock(hMemTmp);<br> <br> if (SetClipboardData(cfBtnFace, hGMemFace) == 0) <br> GlobalFree(hGMemFace);<br> &nbsp; }<br> }<br> <br> // Now get the mask bits and the rest of the header.<br> GetDIBits(hDC, hbmMask, 0, bi.bmiHeader.biSizeImage, pBMDataBuffer, (BITMAPINFO*)&hbuf[0], 0);<br> <br> // Copy them to global memory and set it on the clipboard.<br> HANDLE hGMemMask = GlobalAlloc(GMEM_ZEROINIT | GMEM_SHARE | GMEM_FIXED, bi.bmiHeader.biSizeImage + 60);<br> <br> // Copy the Mask DIB to clipboard using the Button Face Format<br> if (hGMemMask)<br> {<br> BYTE* lpData = (BYTE*)GlobalLock(hGMemMask);<br> <br> CopyMemory(lpData, &hbuf[0], 48);<br> &nbsp; CopyMemory(&lpData[48], pBMDataBuffer, bi.bmiHeader.biSizeImage);<br> GlobalUnlock(hGMemMask);<br> <br> if (SetClipboardData(cfBtnMask, hGMemMask) == 0) <br> GlobalFree(hGMemMask);<br> &nbsp; }<br> <br> // Cleanup the mask and source<br> DeleteObject(hbmMask);<br><br> // Close the clipboard<br> CloseClipboard();<br><br> // Release the mask bitmap buffer<br> delete pBMDataBuffer;<br>}
 

网中戏

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GUEST, unregistred user!
D

duhai_lee

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GUEST, unregistred user!
这么多代码够吓人的. &nbsp;得需要点耐心才行..
 
H

hzjone

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GUEST, unregistred user!
代码太多.看起来晕.
 

轻舞肥羊

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GUEST, unregistred user!
多人接受答案了。
 
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