[REBOL] Terry's API Corner - Print or Exe
From: depotcity::telus::net at: 16-Jun-2001 10:21
The windows shell32.dll has many functions. One of them is "ShellExecuteA" that either
prints or launches a document or file.
a: %/c/winnt/system32/shell32.dll ;path to shell32.dll
b: load/library a
R: make routine! [
] b c
; The following prints the document "the-doc.txt"
R 0 "print" "C:\the-doc.txt" "NULL" "C:\" 0
;don't forget to free up the libarary when done...
;The nShowCmd input requires an integer!, but shows as a string! in the docs below. Through
trial and error I've found that each of the strings <i>usually</i> has a corresponding
integer! SW_HIDE being 1, SW_MAXIMIZE being 2 and so on, but it is untested in this case.
Specifies 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.
Pointer to a null-terminated string that specifies the operation to perform. The following
operation strings are valid:
The function opens the file specified by lpFile. The file can be an executable file or
a document file. The file can be a folder to open.
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
The function explores the folder specified by lpFile.
The lpOperation parameter can be NULL. In that case, the function opens the file specified
Pointer to 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.
If lpFile specifies an executable file, lpParameters is a pointer to a null-terminated
string that specifies parameters to be passed to the application.
If lpFile specifies a document file, lpParameters should be NULL.
Pointer to a null-terminated string that specifies the default directory.
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:
Hides the window and activates another window.
Maximizes the specified window.
Minimizes the specified window and activates the next top-level window in the Z order.
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.
Activates the window and displays it in its current size and position.
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.
Activates the window and displays it as a maximized window.
Activates the window and displays it as a minimized window.
Displays the window as a minimized window. The active window remains active.
Displays the window in its current state. The active window remains active.
Displays a window in its most recent size and position. The active window remains active.
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.