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📄 csdn_文档中心_vb与vc通信初探（一）.htm

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            lang=EN-US>VB</SPAN><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">调用的时候传递进来的参数将接收到的参数返回给了</SPAN><SPAN 
            lang=EN-US>VB</SPAN><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">调用程序，虽然简单，但是已经实现了</SPAN><SPAN 
            lang=EN-US>VB</SPAN><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">与</SPAN><SPAN 
            lang=EN-US>DLL</SPAN><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">之间的数据传递了，在这里要注意的是它们之间的数据类型，布尔类型的数据在</SPAN><SPAN 
            lang=EN-US>VC</SPAN><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">中使用的关键字是</SPAN><SPAN 
            lang=EN-US>Boolean</SPAN><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，而在</SPAN><SPAN 
            lang=EN-US>VC</SPAN><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">中使用的关键字则是</SPAN><SPAN 
            lang=EN-US>bool</SPAN><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">。</SPAN></FONT></P>
            <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"></SPAN></FONT>&nbsp;</P>
            <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">&nbsp;&nbsp;&nbsp; 
            由于</SPAN><SPAN lang=EN-US>VB</SPAN><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">与</SPAN><SPAN 
            lang=EN-US>VC</SPAN><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">之间的数据类型没有相同的关键字，为了方便，下面列出常用数据类型在</SPAN><SPAN 
            lang=EN-US>VC</SPAN><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">与</SPAN><SPAN 
            lang=EN-US>VB</SPAN><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">中分别使用的关键字以及它们之间的对应关系：</SPAN></FONT></P>
            <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN class=txt><SPAN 
            lang=EN-US style="FONT-FAMILY: Arial"><FONT 
            size=3>&nbsp;</FONT></SPAN></SPAN></P>
            <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN class=txt><SPAN 
            lang=EN-US style="FONT-FAMILY: Arial"><FONT size=3>c中的数据类型&nbsp; 
            VB中的声明&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
            结果</FONT></SPAN></SPAN></P>
            <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><SPAN 
            class=txt><SPAN lang=EN-US 
            style="FONT-FAMILY: Arial"></SPAN></SPAN></FONT>&nbsp;</P>
            <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><SPAN 
            class=txt><SPAN lang=EN-US 
            style="FONT-FAMILY: Arial">ATOM&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
            ByVal variable As 
            Integer&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
            </SPAN></SPAN><SPAN class=txt><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial">结果为</SPAN></SPAN><SPAN 
            class=txt><SPAN lang=EN-US style="FONT-FAMILY: Arial">Integer 
            </SPAN></SPAN><SPAN class=txt><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial">类型的表达式</SPAN></SPAN><SPAN 
            class=txt><SPAN style="FONT-FAMILY: Arial"> 
            </SPAN></SPAN></FONT><SPAN lang=EN-US 
            style="FONT-FAMILY: Arial"><BR><BR></SPAN><FONT size=3><SPAN 
            class=txt><SPAN lang=EN-US 
            style="FONT-FAMILY: Arial">BOOL&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
            ByVal variable As 
            Boolean&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
            </SPAN></SPAN><SPAN class=txt><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial">结果为</SPAN></SPAN><SPAN 
            class=txt><SPAN lang=EN-US style="FONT-FAMILY: Arial"> Long 
            </SPAN></SPAN><SPAN class=txt><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial">类型的表达式</SPAN></SPAN><SPAN 
            class=txt><SPAN style="FONT-FAMILY: Arial"> 
            </SPAN></SPAN></FONT><SPAN lang=EN-US 
            style="FONT-FAMILY: Arial"><BR><BR></SPAN><FONT size=3><SPAN 
            class=txt><SPAN lang=EN-US 
            style="FONT-FAMILY: Arial">BYTE&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ByVal 
            variable As 
            Byte&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</SPAN></SPAN><SPAN 
            class=txt><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial">结果为</SPAN></SPAN><SPAN 
            class=txt><SPAN lang=EN-US style="FONT-FAMILY: Arial"> Byte 
            </SPAN></SPAN><SPAN class=txt><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial">类型的表达式</SPAN></SPAN><SPAN 
            class=txt><SPAN style="FONT-FAMILY: Arial"> 
            </SPAN></SPAN></FONT><SPAN lang=EN-US 
            style="FONT-FAMILY: Arial"><BR><BR></SPAN><FONT size=3><SPAN 
            class=txt><SPAN lang=EN-US 
            style="FONT-FAMILY: Arial">CHAR&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
            ByVal variable As 
            Byte&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
            </SPAN></SPAN><SPAN class=txt><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial">结果为</SPAN></SPAN><SPAN 
            class=txt><SPAN lang=EN-US style="FONT-FAMILY: Arial"> Byte 
            </SPAN></SPAN><SPAN class=txt><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial">类型的表达式</SPAN></SPAN><SPAN 
            class=txt><SPAN style="FONT-FAMILY: Arial"> 
            </SPAN></SPAN></FONT><SPAN lang=EN-US 
            style="FONT-FAMILY: Arial"><BR><BR></SPAN><FONT size=3><SPAN 
            class=txt><SPAN lang=EN-US style="FONT-FAMILY: Arial">COLORREF ByVal 
            variable As 
            Long&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</SPAN></SPAN><SPAN 
            class=txt><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial">结果为</SPAN></SPAN><SPAN 
            class=txt><SPAN lang=EN-US style="FONT-FAMILY: Arial"> Long 
            </SPAN></SPAN><SPAN class=txt><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial">类型的表达式</SPAN></SPAN><SPAN 
            class=txt><SPAN style="FONT-FAMILY: Arial"> 
            </SPAN></SPAN></FONT><SPAN lang=EN-US 
            style="FONT-FAMILY: Arial"><BR><BR></SPAN><FONT size=3><SPAN 
            class=txt><SPAN lang=EN-US 
            style="FONT-FAMILY: Arial">DWORD&nbsp;&nbsp; ByVal variable As 
            Long&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
            &nbsp;</SPAN></SPAN><SPAN class=txt><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial">结果为</SPAN></SPAN><SPAN 
            class=txt><SPAN style="FONT-FAMILY: Arial"> <SPAN lang=EN-US>Long 
            </SPAN></SPAN></SPAN><SPAN class=txt><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial">类型的表达式</SPAN></SPAN><SPAN 
            class=txt><SPAN style="FONT-FAMILY: Arial"> 
            </SPAN></SPAN></FONT><SPAN lang=EN-US 
            style="FONT-FAMILY: Arial"><BR><BR></SPAN><FONT size=3><SPAN 
            class=txt><SPAN lang=EN-US style="FONT-FAMILY: Arial">HWND, HDC, 
            HMENU ByVal variable As Long </SPAN></SPAN><SPAN class=txt><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial">结果为</SPAN></SPAN><SPAN 
            class=txt><SPAN lang=EN-US style="FONT-FAMILY: Arial"> Long 
            </SPAN></SPAN><SPAN class=txt><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial">类型的表达式等</SPAN></SPAN><SPAN 
            class=txt><SPAN lang=EN-US style="FONT-FAMILY: Arial">Windows 
            </SPAN></SPAN><SPAN class=txt><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial">句柄</SPAN></SPAN><SPAN 
            class=txt><SPAN style="FONT-FAMILY: Arial"> 
            </SPAN></SPAN></FONT><SPAN lang=EN-US 
            style="FONT-FAMILY: Arial"><BR><BR></SPAN><FONT size=3><SPAN 
            class=txt><SPAN lang=EN-US style="FONT-FAMILY: Arial">INT, 
            UINT&nbsp;&nbsp;&nbsp; ByVal variable As 
            Long&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
            </SPAN></SPAN><SPAN class=txt><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial">结果为</SPAN></SPAN><SPAN 
            class=txt><SPAN lang=EN-US style="FONT-FAMILY: Arial"> Long 
            </SPAN></SPAN><SPAN class=txt><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial">类型的表达式</SPAN></SPAN><SPAN 
            class=txt><SPAN style="FONT-FAMILY: Arial"> 
            </SPAN></SPAN></FONT><SPAN lang=EN-US 
            style="FONT-FAMILY: Arial"><BR><BR></SPAN><FONT size=3><SPAN 
            class=txt><SPAN lang=EN-US 
            style="FONT-FAMILY: Arial">LONG&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
            ByVal variable As 
            Long&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
            </SPAN></SPAN><SPAN class=txt><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial">结果为</SPAN></SPAN><SPAN 
            class=txt><SPAN lang=EN-US style="FONT-FAMILY: Arial"> Long 
            </SPAN></SPAN><SPAN class=txt><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial">类型的表达式</SPAN></SPAN><SPAN 
            class=txt><SPAN style="FONT-FAMILY: Arial"> 
            </SPAN></SPAN></FONT><SPAN lang=EN-US 
            style="FONT-FAMILY: Arial"><BR><BR></SPAN><FONT size=3><SPAN 
            class=txt><SPAN lang=EN-US 
            style="FONT-FAMILY: Arial">LPARAM&nbsp;&nbsp;&nbsp; ByVal variable 
            As 
            Long&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
            </SPAN></SPAN><SPAN class=txt><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial">结果为</SPAN></SPAN><SPAN 
            class=txt><SPAN lang=EN-US style="FONT-FAMILY: Arial"> Long 
            </SPAN></SPAN><SPAN class=txt><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial">类型的表达式</SPAN></SPAN><SPAN 
            class=txt><SPAN style="FONT-FAMILY: Arial"> 
            </SPAN></SPAN></FONT><SPAN lang=EN-US 
            style="FONT-FAMILY: Arial"><BR><BR></SPAN><FONT size=3><SPAN 
            class=txt><SPAN lang=EN-US style="FONT-FAMILY: Arial">LPDWORD 
            variable As 
            Long&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
            &nbsp;</SPAN></SPAN><SPAN class=txt><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial">结果为</SPAN></SPAN><SPAN 
            class=txt><SPAN lang=EN-US style="FONT-FAMILY: Arial"> Long 
            </SPAN></SPAN><SPAN class=txt><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial">类型的表达式</SPAN></SPAN><SPAN 
            class=txt><SPAN style="FONT-FAMILY: Arial"> 
            </SPAN></SPAN></FONT><SPAN lang=EN-US 
            style="FONT-FAMILY: Arial"><BR><BR></SPAN><FONT size=3><SPAN 
            class=txt><SPAN lang=EN-US style="FONT-FAMILY: Arial">LPINT, LPUINT 
            variable As 
            Long&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
            </SPAN></SPAN><SPAN class=txt><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial">结果为</SPAN></SPAN><SPAN 
            class=txt><SPAN lang=EN-US style="FONT-FAMILY: Arial"> Long 
            </SPAN></SPAN><SPAN class=txt><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial">类型的表达式</SPAN></SPAN><SPAN 
            class=txt><SPAN 
            style="FONT-FAMILY: Arial">&nbsp;</SPAN></SPAN></FONT><SPAN 
            lang=EN-US style="FONT-FAMILY: Arial"><BR><BR></SPAN><FONT 
            size=3><SPAN class=txt><SPAN style="FONT-FAMILY: Arial"><SPAN 
            lang=EN-US>LPRECT&nbsp;&nbsp;&nbsp; variable As 
            type&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
            </SPAN></SPAN></SPAN><SPAN class=txt><SPAN 
            style="FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: Arial; mso-bidi-font-family: Arial">自定义类型的任意变量</SPAN></SPAN><SPAN 
            class=txt><SPAN 
            style="FONT-FAMILY: Arial">&nbsp;</SPAN></SPAN></FONT><SPAN 
            lang=EN-US style="FONT-FAMILY: Arial"><BR></SPAN><FONT size=3><SPAN 
            class=txt><SPAN lang=EN-US 
            style="FONT-FAMILY: Arial"></SPAN></SPAN></FONT></P>
            <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><FONT size=3><SPAN 
            class=txt><SPAN lang=EN-US style="FONT-FAMILY: Arial">&nbsp;LPSTR, 
            LPCSTR ByVal variable As String </SPAN></SPAN><SPAN class=txt><SPAN
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