Shellexecute syntax

ShellExecute(Handle,\'open\',PChar(\'test.chm\'),pchar(\'\'),pchar(\'\'),SW_SHOWNORMAL);

Snowball

Husk for resten at skrive ShellAPI under Uses !

Snowball

<api>

ShellExecute
Performs an operation on a specified file.



HINSTANCE ShellExecute(
    HWND hwnd,
    LPCTSTR lpVerb,
    LPCTSTR lpFile,
    LPCTSTR lpParameters,
    LPCTSTR lpDirectory,
    INT nShowCmd
);

Parameters
hwnd
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.
lpVerb
A string, referred to as a verb, that specifies the action to be performed. The set of available verbs depends on the particular file or folder. It includes the commands listed in the context menu and the registry. See Extending Context Menus for further discussion of context menus. The following verbs are usually valid: Verb Description
edit  Opens an editor. If lpFile is not a document file, the function will fail.
explore The function explores the folder specified by lpFile. 
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 document file specified by lpFile. If lpFile is not a document file, the function will fail.
properties  Displays the file or folder\'s properties.

If you set this paramater to NULL:

For systems prior to Windows 2000, the \"open\" verb is used if available. If not, the default verb is used.
For Windows 2000 and later systems, \"open\" is used if available. If not, the default verb is used. If neither verb is available, the system uses first verb listed in the registry.
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.The format of this string is determined by the verb that is to be invoked. If lpFile specifies a document file, lpParameters should be NULL.
lpDirectory
Address of a null-terminated string that specifies the default directory.
nShowCmd
Flags that specify how an application is to be displayed when it is opened. If lpFile specifies a document file, the flag is simply passed to the associated application. It is up to the application to decide how to handle it. 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 the STARTUPINFO structure passed to the CreateProcess function by the program that started the application. An application should call ShowWindow 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.

Return Values
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 Microsoft® Windows® applications. It is not a true HINSTANCE, however. The only thing that can be done with the returned HINSTANCE is to cast it to an integer and compare it with the value 32 or one of the error codes below.

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. This error will also be returned if you attempt to print a file that is not printable.
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.

Remarks
This method allows you to execute any commands in a folder\'s context menu or stored in the registry.

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:

ShellExecute(handle, \"explore\", path_to_folder, NULL, NULL, SW_SHOWNORMAL);

To launch the shell\'s Find utility for a directory, use:

ShellExecute(handle, \"find\", path_to_folder, NULL, NULL, 0);

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.

With multiple monitors, if you specify the window handle and set lpOperation to \"Properties\", any windows created by ShellExecute may not appear in the correct position.

To obtain information about the application that is launched as a result of calling ShellExecute, use ShellExecuteEx.

See Also
IShellExecuteHook

Requirements
  Windows NT/2000: Requires Windows NT 3.1 or later.
  Windows 95/98: Requires Windows 95 or later.
  Windows CE: Unsupported.
  Header: Declared in shellapi.h.
  Import Library: shell32.lib.

</api>

Kort og præcis, det var det jeg havde brug for