<P class=MsoNormal><SPAN lang=EN-US>COMDLG32.DLL </SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">为我们提供了一些很有用的对话框，但是仍然有部分我们可能会用到的系统对话框它却没有提供。如果试图复制这些系统对话框将是一件麻烦的苦差事。幸好</SPAN><SPAN lang=EN-US>shell32.dll</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">为我们提供了这些对话框，本文将带你去发掘一些未公开的</SPAN><SPAN lang=EN-US>API</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">函数，以实现这些对话框。</SPAN></P>
4 ~7 g$ n4 K$ S6 q' K<P class=MsoNormal><SPAN lang=EN-US> <?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></SPAN></P>
" Z$ J/ p* Y6 B<P class=MsoNormal><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">在使用未公开的</SPAN><SPAN lang=EN-US>API</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">函数之前，你必须知道声明未公开的</SPAN><SPAN lang=EN-US>API</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">函数与声明那些公开的</SPAN><SPAN lang=EN-US>API</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">函数略有不同，那就是，你必须用到未公开</SPAN><SPAN lang=EN-US>API</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">函数的顺序号</SPAN><SPAN lang=EN-US>(ordinal number)</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">。这个顺序号就是未公开函数的别名。也就是说在声明未公开</SPAN><SPAN lang=EN-US>API</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">函数时，必须加上它的别名。例如下面要说到的</SPAN><SPAN lang=EN-US>PickIconDlg</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">函数的顺序号为</SPAN><SPAN lang=EN-US>62</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，它的别名就是</SPAN><SPAN lang=EN-US>"#62"</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">。如果不这样做，系统会提示你找不到函数的入口点。</SPAN></P>* u4 x, u& D5 K, y8 m0 {
<P class=MsoNormal><SPAN lang=EN-US> <o:p></o:p></SPAN></P>
/ ]* H% v* ~) G<P class=MsoNormal><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">选取图标</SPAN></P>; S) E a. H+ W5 o6 H2 C
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<P class=MsoNormal><SPAN lang=EN-US>BOOL WINAPI PickIconDlg(</SPAN></P>( D2 a5 S* V# {: U4 Q
<P class=MsoNormal><SPAN lang=EN-US>HWND hwndOwner, </SPAN></P>
. m ~/ O+ i+ c* g' y<P class=MsoNormal><SPAN lang=EN-US>LPSTR lpstrFile, </SPAN></P>
; k- H5 `$ I6 Q1 l<P class=MsoNormal><SPAN lang=EN-US>DWORD nMaxFile, </SPAN></P>
5 s, c& T& J5 [- i- |+ x<P class=MsoNormal><SPAN lang=EN-US>LPDWORD lpdwIconIndex);</SPAN></P>* M9 ~6 C- v; F0 G, t
<P class=MsoNormal><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">该函数的顺序号为</SPAN><SPAN lang=EN-US>62</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">。</SPAN></P>4 }8 X4 |6 r' i( ?& R, f
<P class=MsoNormal><SPAN lang=EN-US> <o:p></o:p></SPAN></P>
# {1 ~5 d: q! v* G$ X( ^; V<P class=MsoNormal><SPAN lang=EN-US>hwndOwner</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">拥有该对话框的窗口句柄</SPAN><SPAN lang=EN-US> lpstrFile</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">指向一个缓冲，包含初始的文件名。函数返回后它就包含新的文件名。</SPAN><SPAN lang=EN-US>nMaxFile</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">指定缓冲的大小，以字符为单位。</SPAN><SPAN lang=EN-US> lpdwIconIndex</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">指向一个变量其中包含基于零的图标的索引。函数返回后它包含新图标的索引值。</SPAN> <SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">如果用户选择了图标，则返回值为真，如果用户选择取消按钮或是系统菜单的关闭选项则返回值为假。</SPAN></P>
/ s9 X: I& ^6 Z<P class=MsoNormal><SPAN lang=EN-US> <o:p></o:p></SPAN></P>
0 w4 j& j( F. ~7 b, E) f<P class=MsoNormal><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">运行程序对话框</SPAN></P>( I7 ~ M' F$ [, I( f! J9 W
<P class=MsoNormal><SPAN lang=EN-US> <o:p></o:p></SPAN></P>5 q9 T# S' W0 B* K, q/ |
<P class=MsoNormal><SPAN lang=EN-US>void WINAPI RunFileDlg(</SPAN></P>
6 j6 R* L! m6 w<P class=MsoNormal><SPAN lang=EN-US>HWND hwndOwner, </SPAN></P>' D+ ]1 j9 F# [" G; `+ U
<P class=MsoNormal><SPAN lang=EN-US>HICON hIcon, </SPAN></P>
# [" P" b( P: C" K! @* S. ~. c<P class=MsoNormal><SPAN lang=EN-US>LPCSTR lpstrDirectory, </SPAN></P>: k7 X) y3 p+ ^5 Q$ w6 L" r" J
<P class=MsoNormal><SPAN lang=EN-US>LPCSTR lpstrTitle, </SPAN></P>: m4 Q3 r0 Z- I: a; u% A
<P class=MsoNormal><SPAN lang=EN-US>LPCSTR lpstrDescription,</SPAN></P>' [3 Q! {) `; G, ~6 F5 N
<P class=MsoNormal><SPAN lang=EN-US>UINT uFlags);</SPAN></P>* t6 f1 a! ?5 f5 [8 E( I* B
<P class=MsoNormal><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">该函数的顺序号为</SPAN><SPAN lang=EN-US>61</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">。在</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'">中可声明如下：</SPAN></P>2 P% j- N3 P+ N9 ]
<P class=MsoNormal><SPAN lang=EN-US> <o:p></o:p></SPAN></P>
, t4 g2 Z% `! F3 r<P class=MsoNormal><SPAN lang=EN-US>Private Declare Function RunFileDlg Lib "shell32" Alias "#61" (ByVal hwndOwner As Long, ByVal hIcon As Long, ByVal lpstrDirectory As String, ByVal lpstrTitle As String, ByVal lpstrDescription As String, ByVal uFlags As Long) As Long</SPAN></P>5 f. r) ?* l5 u9 b
<P class=MsoNormal><SPAN lang=EN-US> <o:p></o:p></SPAN></P>
1 G+ B5 D2 l( P<P class=MsoNormal><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">其中</SPAN><SPAN lang=EN-US>uFlags</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">参数的可选值为</SPAN></P>! Y- W# A/ y1 r2 r
<P class=MsoNormal><SPAN lang=EN-US> <o:p></o:p></SPAN></P>
- W# m: D" \- o<P class=MsoNormal><SPAN lang=EN-US>RFF_NOBROWSE 0x01 Removes the browse button. </SPAN></P>! U' K* J% N1 B) _! s" a
<P class=MsoNormal><SPAN lang=EN-US>RFF_NODEFAULT 0x02 No default item selected. </SPAN></P># P" i: \% q& b, I7 Z
<P class=MsoNormal><SPAN lang=EN-US>RFF_CALCDIRECTORY 0x04 Calculates the working directory from the file name. </SPAN></P>
1 i. j. ]' b- T2 f" r<P class=MsoNormal><SPAN lang=EN-US>RFF_NOLABEL 0x08 Removes the edit box label. </SPAN></P>
3 H9 \* V/ s6 N( U! r<P class=MsoNormal><SPAN lang=EN-US>RFF_NOSEPARATEMEM 0x20 Removes the Separate Memory Space check box (Windows NT only). </SPAN></P> |
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发表于 2008-9-28 16:29:36
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