Using Win32 functions in Visual FoxPro Image Gallery
Window
..msdn
CloseWindow
CreateWindow
CreateWindowEx
DestroyWindow
EndTask
FindWindow
FindWindowEx
GetAncestor
GetClientRect
GetDesktopWindow
GetForegroundWindow
GetGUIThreadInfo
GetParent
GetShellWindow
GetWindow
GetWindowInfo
GetWindowPlacement
GetWindowRect
GetWindowText
GetWindowTextLength
GetWindowThreadProcessId
InternalGetWindowText
IsChild
IsIconic
IsWindow
IsWindowVisible
IsZoomed
MoveWindow
RealGetWindowClass
SetForegroundWindow
SetLayeredWindowAttributes
SetParent
SetWindowPos
SetWindowText
ShowWindow
SwitchToThisWindow
Code examples:
Confining Windows calculator inside the VFP main window
Custom GDI+ class
Displaying animated images on FoxPro form with BitBlt and StretchBlt functions
Displaying dimmed window behind VFP top-level form
How to change display settings: screen resolution, screen refresh rate
How to control Adobe Reader 9.0 (SDI mode) from VFP application
How to position the GETPRINTER() dialog
How to put a horizontal text scrolling on the form (a news line)
How to put a vertical text scrolling on the form (a movie cast)
Listing child windows for the Windows desktop
Obtaining some properties for the Windows desktop using the GetWindowPlacement function
Printing text with the Escape function
Retrieving geometrical parameters of the system desktop window
Running a regular FoxPro form while main VFP window is minimized
Scanning a hierarchy of child windows down from the Windows Desktop
Simple Window Viewer
Subclassing CommandButton control to create BackColor property
The window and its ancestors
Using the IsWindowEnabled function
Vertical Label control
Running a regular FoxPro form while main VFP window is minimized

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Before you begin:
This code changes a parent window for the given form to the Windows Desktop.
 
PUBLIC objForm
objForm = CreateObject("Tform")
objForm.Visible = .T.
 
DEFINE CLASS Tform As Form
AutoCenter=.T.
PROTECTED formstatus
 
PROCEDURE  Init
    THIS.formstatus = 0
 
PROCEDURE  Activate
    IF THIS.formstatus = 1
        RETURN
    ENDIF
 
    DECLARE INTEGER GetDesktopWindow IN user32
    DECLARE INTEGER GetFocus IN user32
    DECLARE INTEGER SetParent IN user32;
        INTEGER hWndChild, INTEGER hWndNewParent
 
    LOCAL hForm, hDesktop
    hDesktop = GetDesktopWindow()
    hForm = GetFocus()
 
    * if successfully changing the parent window for this form
    * then minimizing the main VFP window
 
    IF SetParent (hForm, hDesktop) <> 0
        THIS.formstatus = 1
        _SCREEN.WindowState = 1
    ENDIF
 
ENDDEFINE
 

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706 bytes  
Created: 2002-01-10 19:57:05  
Modified: 2002-01-10 20:05:25  
Visits in 7 days: 52  
Listed functions:
GetDesktopWindow
GetFocus
SetParent
Printer friendly API declarations
My comment:
It makes the form less dependent on the main VFP window. Its icon even appears on the Windows toolbar.

As I can see some more adjustments should be done to the form through the SetWindowLong function, since it is not possible to put it on top when it is hidden by other windows.
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