ShellExecute HINSTANCE ShellExecute( HWND hwnd, LPCTSTR lpOperation, LPCTSTR lpFile, LPCTSTR lpParameters, LPCTSTR lpDirectory, INT nShowCmd ); Opens or prints a specified file. Returns a value greater than 32 if successful, or an error value that is less than or equal to 32 otherwise. The following table lists the error values. The return value is cast as an HINSTANCE for backward compatibility with 16-bit Windows applications. 0 The operating system is out of memory or resources. ERROR_FILE_NOT_FOUND The specified file was not found. ERROR_PATH_NOT_FOUND The specified path was not found. ERROR_BAD_FORMAT The .exe file is invalid (non-Win32® .exe or error in .exe image). SE_ERR_ACCESSDENIED The operating system denied access to the specified file. SE_ERR_ASSOCINCOMPLETE The file name association is incomplete or invalid. SE_ERR_DDEBUSY The DDE transaction could not be completed because other DDE transactions were being processed. SE_ERR_DDEFAIL The DDE transaction failed. SE_ERR_DDETIMEOUT The DDE transaction could not be completed because the request timed out. SE_ERR_DLLNOTFOUND The specified dynamic-link library was not found. SE_ERR_FNF The specified file was not found. SE_ERR_NOASSOC There is no application associated with the given file name extension. SE_ERR_OOM There was not enough memory to complete the operation. SE_ERR_PNF The specified path was not found. SE_ERR_SHARE A sharing violation occurred. hwnd Window handle to a parent window. This window receives any message boxes that an application produces. For example, an application may report an error by producing a message box. lpOperation Address of a null-terminated string that specifies the operation to perform. The following operation strings are valid: "open" The function opens the file specified by the lpFile parameter. The file can be an executable file or a document file. It can also be a folder. "print" The function prints the file specified by lpFile. The file should be a document file. If the file is an executable file, the function opens the file, as if "open" had been specified. "explore" The function explores the folder specified by lpFile. This parameter can be NULL. In that case, the function opens the file specified by lpFile. lpFile Address of a null-terminated string that specifies the file to open or print or the folder to open or explore. The function can open an executable file or a document file. The function can print a document file. lpParameters If the lpFile parameter specifies an executable file, lpParameters is an address to a null-terminated string that specifies the parameters to be passed to the application. If lpFile specifies a document file, lpParameters should be NULL. lpDirectory Address of a null-terminated string that specifies the default directory. nShowCmd If lpFile specifies an executable file, nShowCmd specifies how the application is to be shown when it is opened. This parameter can be one of the following values: SW_HIDE Hides the window and activates another window. SW_MAXIMIZE Maximizes the specified window. SW_MINIMIZE Minimizes the specified window and activates the next top-level window in the z-order. SW_RESTORE Activates and displays the window. If the window is minimized or maximized, Windows restores it to its original size and position. An application should specify this flag when restoring a minimized window. SW_SHOW Activates the window and displays it in its current size and position. SW_SHOWDEFAULT Sets the show state based on the SW_ flag specified in theSTARTUPINFO structure passed to theCreateProcess function by the program that started the application. An application should callShowWindow with this flag to set the initial show state of its main window. SW_SHOWMAXIMIZED Activates the window and displays it as a maximized window. SW_SHOWMINIMIZED Activates the window and displays it as a minimized window. SW_SHOWMINNOACTIVE Displays the window as a minimized window. The active window remains active. SW_SHOWNA Displays the window in its current state. The active window remains active. SW_SHOWNOACTIVATE Displays a window in its most recent size and position. The active window remains active. SW_SHOWNORMAL Activates and displays a window. If the window is minimized or maximized, Windows restores it to its original size and position. An application should specify this flag when displaying the window for the first time. If lpFile specifies a document file, nShowCmd should be zero. You can use this function to open or explore a shell folder. To open a folder, use either of the following calls: ShellExecute(handle, NULL, path_to_folder, NULL, NULL, SW_SHOWNORMAL);or ShellExecute(handle, "open", path_to_folder, NULL, NULL, SW_SHOWNORMAL);To explore a folder, use the following call: ShellExecute(handle, "explore", path_to_folder, NULL, NULL, SW_SHOWNORMAL);If lpOperation is NULL, the function opens the file specified by lpFile. If lpOperation is "open" or "explore", the function will attempt to open or explore the folder.
ShellExecute VB声明 Declare Function ShellExecute Lib "shell32.dll" Alias "ShellExecuteA" (ByVal hwnd As Long, ByVal lpOperation As String, ByVal lpFile As String, ByVal lpParameters As String, ByVal lpDirectory As String, ByVal nShowCmd As Long) As Long 说明 查找与指定文件关联在一起的程序的文件名 返回值 Long，非零表示成功，零表示失败。会设置GetLastError 参数表 参数 类型及说明 hwnd Long，指定一个窗口的句柄，有时候，windows程序有必要在创建自己的主窗口前显示一个消息框 lpOperation String，指定字串“open”来打开lpFlie文档，或指定“Print”来打印它 lpFile String，想用关联程序打印或打开一个程序名或文件名 lpParameters String，如lpszFlie是可执行文件，则这个字串包含传递给执行程序的参数 lpDirectory String，想使用的完整路径 nShowCmd Long，定义了如何显示启动程序的常数值。参考ShowWindow函数的nCmdShow参数
ShellExecute VB声明 Declare Function ShellExecute Lib "shell32.dll" Alias "ShellExecuteA" (ByVal hwnd As Long, ByVal lpOperation As String, ByVal lpFile As String, ByVal lpParameters As String, ByVal lpDirectory As String, ByVal nShowCmd As Long) As Long 说明 查找与指定文件关联在一起的程序的文件名。关联的方式要么是运行程序，要么是打印文件。可用Windows注册表编辑器将特定的文件类型同应用程序关联起来。例如，扩展名为.TXT的文本文件通常与Windows记事本（NOTEPAD.EXE）关联到一起。如在文件管理器中双击含.TXT扩展名的一个文件，就会自行启动记事本程序，并在其中载入文本文件；或者将指定的文件打印出来 返回值 Long，大于32表示成功。请参考对FindExecutable函数的说明，了解具体的错误代码列表 参数表 参数 类型及说明 hwnd Long，指定一个窗口的句柄，有些时候，Windows程序有必要在创建自己的主窗口前显示一个消息框。如果发生这种情况，由这个参数指定的窗口就会作为消息框的父窗口使用。在VB环境中，通常将活动窗体的窗口句柄作为这个参数使用 lpOperation String，指定字串“Open”来打开lpFlie文档；或指定“Print”来打印它。也可设为vbNullString，表示默认为“Open” lpFile String，想用关联的程序打印或打开的一个程序名或文件名 lpParameters String，如lpFile是一个可执行文件，则这个字串包含了传递给执行程序的参数。如lpFile引用的是一个文档文件，或者不需要使用参数，则设为vbNullString lpDirectory String，想使用的默认路径完整路径 nShowCmd Long，定义了如何显示启动程序的常数值。参考ShowWindow函数的nCmdShow参数 注解 这个函数的说明在MSDN里是这样的：Opens or prints a specified file
FindExecutable VB声明 Declare Function FindExecutable Lib "shell32.dll" Alias "FindExecutableA" (ByVal lpFile As String, ByVal lpDirectory As String, ByVal lpResult As String) As Long 说明 查找与一个指定文件关联在一起的程序的文件名。可用Windows注册表编辑器将文件类型与特定的应用程序关联到一起。比如，扩展名为.TXT的文本文件通常与Windows记事本（Notepad.exe）关联到一起。如在文件管理器中双击含.TXT扩展名的一个文件，会自动启动记事本，并在其中载入文本文件 返回值 Long，大于32表示成功；31表示不存在文件类型的关联；0表示系统内存或资源不足；ERROR_FILE_NOT_FOUND表示指定的文件不存在；ERROR_PATH_NOT_FOUND表示指定的路径不存在；ERROR_BAD_FORMAT表示执行格式无效 参数表 参数 类型及说明 lpFile String，指定要为其查找相关程序的一个文件名或程序名 lpDirectory String，要使用的默认目录的完整路径 lpResult String，指定一个字串缓冲区，用于装载可执行程序的名字。注意这个字串预先至少都要初始化成MAX_PATH个字符的长度
HINSTANCE ShellExecute(
HWND hwnd,
LPCTSTR lpOperation,
LPCTSTR lpFile,
LPCTSTR lpParameters,
LPCTSTR lpDirectory,
INT nShowCmd
); Opens or prints a specified file. Returns a value greater than 32 if successful, or an error value that is less than or equal to 32 otherwise. The following table lists the error values. The return value is cast as an HINSTANCE for backward compatibility with 16-bit Windows applications. 0 The operating system is out of memory or resources.
ERROR_FILE_NOT_FOUND The specified file was not found.
ERROR_PATH_NOT_FOUND The specified path was not found.
ERROR_BAD_FORMAT The .exe file is invalid (non-Win32® .exe or error in .exe image).
SE_ERR_ACCESSDENIED The operating system denied access to the specified file.
SE_ERR_ASSOCINCOMPLETE The file name association is incomplete or invalid.
SE_ERR_DDEBUSY The DDE transaction could not be completed because other DDE transactions were being processed.
SE_ERR_DDEFAIL The DDE transaction failed.
SE_ERR_DDETIMEOUT The DDE transaction could not be completed because the request timed out.
SE_ERR_DLLNOTFOUND The specified dynamic-link library was not found.
SE_ERR_FNF The specified file was not found.
SE_ERR_NOASSOC There is no application associated with the given file name extension.
SE_ERR_OOM There was not enough memory to complete the operation.
SE_ERR_PNF The specified path was not found.
SE_ERR_SHARE A sharing violation occurred. hwnd
Window handle to a parent window. This window receives any message boxes that an application produces. For example, an application may report an error by producing a message box.
lpOperation
Address of a null-terminated string that specifies the operation to perform. The following operation strings are valid: "open" The function opens the file specified by the lpFile parameter. The file can be an executable file or a document file. It can also be a folder.
"print" The function prints the file specified by lpFile. The file should be a document file. If the file is an executable file, the function opens the file, as if "open" had been specified.
"explore" The function explores the folder specified by lpFile. This parameter can be NULL. In that case, the function opens the file specified by lpFile. lpFile
Address of a null-terminated string that specifies the file to open or print or the folder to open or explore. The function can open an executable file or a document file. The function can print a document file.
lpParameters
If the lpFile parameter specifies an executable file, lpParameters is an address to a null-terminated string that specifies the parameters to be passed to the application.
If lpFile specifies a document file, lpParameters should be NULL.
lpDirectory
Address of a null-terminated string that specifies the default directory.
nShowCmd
If lpFile specifies an executable file, nShowCmd specifies how the application is to be shown when it is opened. This parameter can be one of the following values: SW_HIDE Hides the window and activates another window.
SW_MAXIMIZE Maximizes the specified window.
SW_MINIMIZE Minimizes the specified window and activates the next top-level window in the z-order.
SW_RESTORE Activates and displays the window. If the window is minimized or maximized, Windows restores it to its original size and position. An application should specify this flag when restoring a minimized window.
SW_SHOW Activates the window and displays it in its current size and position.
SW_SHOWDEFAULT Sets the show state based on the SW_ flag specified in theSTARTUPINFO structure passed to theCreateProcess function by the program that started the application. An application should callShowWindow with this flag to set the initial show state of its main window.
SW_SHOWMAXIMIZED Activates the window and displays it as a maximized window.
SW_SHOWMINIMIZED Activates the window and displays it as a minimized window.
SW_SHOWMINNOACTIVE Displays the window as a minimized window. The active window remains active.
SW_SHOWNA Displays the window in its current state. The active window remains active.
SW_SHOWNOACTIVATE Displays a window in its most recent size and position. The active window remains active.
SW_SHOWNORMAL Activates and displays a window. If the window is minimized or maximized, Windows restores it to its original size and position. An application should specify this flag when displaying the window for the first time. If lpFile specifies a document file, nShowCmd should be zero. You can use this function to open or explore a shell folder. To open a folder, use either of the following calls: ShellExecute(handle, NULL, path_to_folder, NULL, NULL, SW_SHOWNORMAL);or ShellExecute(handle, "open", path_to_folder, NULL, NULL, SW_SHOWNORMAL);To explore a folder, use the following call: ShellExecute(handle, "explore", path_to_folder, NULL, NULL, SW_SHOWNORMAL);If lpOperation is NULL, the function opens the file specified by lpFile. If lpOperation is "open" or "explore", the function will attempt to open or explore the folder.
Declare Function ShellExecute Lib "shell32.dll" Alias "ShellExecuteA" (ByVal hwnd As Long, ByVal lpOperation As String, ByVal lpFile As String, ByVal lpParameters As String, ByVal lpDirectory As String, ByVal nShowCmd As Long) As Long
说明
查找与指定文件关联在一起的程序的文件名
返回值
Long，非零表示成功，零表示失败。会设置GetLastError
参数表
参数 类型及说明
hwnd Long，指定一个窗口的句柄，有时候，windows程序有必要在创建自己的主窗口前显示一个消息框
lpOperation String，指定字串“open”来打开lpFlie文档，或指定“Print”来打印它
lpFile String，想用关联程序打印或打开一个程序名或文件名
lpParameters String，如lpszFlie是可执行文件，则这个字串包含传递给执行程序的参数
lpDirectory String，想使用的完整路径
nShowCmd Long，定义了如何显示启动程序的常数值。参考ShowWindow函数的nCmdShow参数
Declare Function ShellExecute Lib "shell32.dll" Alias "ShellExecuteA" (ByVal hwnd As Long, ByVal lpOperation As String, ByVal lpFile As String, ByVal lpParameters As String, ByVal lpDirectory As String, ByVal nShowCmd As Long) As Long
说明
查找与指定文件关联在一起的程序的文件名。关联的方式要么是运行程序，要么是打印文件。可用Windows注册表编辑器将特定的文件类型同应用程序关联起来。例如，扩展名为.TXT的文本文件通常与Windows记事本（NOTEPAD.EXE）关联到一起。如在文件管理器中双击含.TXT扩展名的一个文件，就会自行启动记事本程序，并在其中载入文本文件；或者将指定的文件打印出来
返回值
Long，大于32表示成功。请参考对FindExecutable函数的说明，了解具体的错误代码列表
参数表
参数 类型及说明
hwnd Long，指定一个窗口的句柄，有些时候，Windows程序有必要在创建自己的主窗口前显示一个消息框。如果发生这种情况，由这个参数指定的窗口就会作为消息框的父窗口使用。在VB环境中，通常将活动窗体的窗口句柄作为这个参数使用
lpOperation String，指定字串“Open”来打开lpFlie文档；或指定“Print”来打印它。也可设为vbNullString，表示默认为“Open”
lpFile String，想用关联的程序打印或打开的一个程序名或文件名
lpParameters String，如lpFile是一个可执行文件，则这个字串包含了传递给执行程序的参数。如lpFile引用的是一个文档文件，或者不需要使用参数，则设为vbNullString
lpDirectory String，想使用的默认路径完整路径
nShowCmd Long，定义了如何显示启动程序的常数值。参考ShowWindow函数的nCmdShow参数
注解
这个函数的说明在MSDN里是这样的：Opens or prints a specified file
Declare Function FindExecutable Lib "shell32.dll" Alias "FindExecutableA" (ByVal lpFile As String, ByVal lpDirectory As String, ByVal lpResult As String) As Long
说明
查找与一个指定文件关联在一起的程序的文件名。可用Windows注册表编辑器将文件类型与特定的应用程序关联到一起。比如，扩展名为.TXT的文本文件通常与Windows记事本（Notepad.exe）关联到一起。如在文件管理器中双击含.TXT扩展名的一个文件，会自动启动记事本，并在其中载入文本文件
返回值
Long，大于32表示成功；31表示不存在文件类型的关联；0表示系统内存或资源不足；ERROR_FILE_NOT_FOUND表示指定的文件不存在；ERROR_PATH_NOT_FOUND表示指定的路径不存在；ERROR_BAD_FORMAT表示执行格式无效
参数表
参数 类型及说明
lpFile String，指定要为其查找相关程序的一个文件名或程序名
lpDirectory String，要使用的默认目录的完整路径
lpResult String，指定一个字串缓冲区，用于装载可执行程序的名字。注意这个字串预先至少都要初始化成MAX_PATH个字符的长度