Using Win32 functions in Visual FoxPro Image Gallery
Keyboard Input
..msdn
ActivateKeyboardLayout
BlockInput
EnableWindow
GetActiveWindow
GetAsyncKeyState
GetFocus
GetKBCodePage
GetKeyboardLayout
GetKeyboardLayoutList
GetKeyboardLayoutName
GetKeyboardState
GetKeyNameText
GetKeyState
IsWindowEnabled
keybd_event
MapVirtualKey
RegisterHotKey
SetFocus
SetKeyboardState
ToAscii
UnregisterHotKey
VkKeyScan
Code examples:
An alternative way of setting Form.Closable to False
Animating a transition of the VFP form (a wire-frame rectangle)
Attaching menu to a top-level form
Copying picture of the active form to the Clipboard using Enhanced Metafile API functions
Creating a clipping region from the path selected into the device context of a form
Disabling drawing in the VFP form
Displaying animated images on FoxPro form with BitBlt and StretchBlt functions
Dragging files from Explorer window and dropping them on FoxPro control (requires VFP9)
Drawing a window caption using the DrawCaption routine
Drawing standard Windows icons
Form Magnifier
GDI+: copying to the Clipboard (a) image of active FoxPro window/form, (b) image file
GDI+: saving image of FoxPro form to graphics file (BMP, GIF, JPG, PNG, TIF)
GDI+: sending image of FoxPro form to printer
GetFocus returns a HWND value
How to block the ALT+TAB shortcut (WinXP)
How to block the PrintScreen key
How to copy the image of a form to the Clipboard using Bitmap API functions
How to create transparent areas inside a form -- punching holes in the form
How to drag a Form not using its Titlebar or Caption
How to intercept window messages sent to VFP form
How to print FoxPro form
How to print FoxPro form -- II
How to put a horizontal text scrolling on the form (a news line, marquee)
How to put a vertical text scrolling on the form (a movie cast)
How to start the screen saver and how to find whether the screen saver is active
How to view icons stored in executable files (Icon Viewer)
Placing a button on the VFP form as a new child window
Retrieving top-child window for the VFP form
Retrieving window and menu help context identifiers
Round FoxPro form
Running a regular FoxPro form while main VFP window is minimized
Setting the mouse capture to the specified window
Setting the Window Region for a form
Shortcut Menu Class
Storing screen shot of a form to bitmap file
Storing screen shot of a form to enhanced metafile (*.emf)
The window and its ancestors
Tracking mouse movement to detect when to start dragging
Using Common Controls: the Header Control
Using FrameRgn for displaying system colors
Using IsChild() for testing ThisForm.ShowWindow property
How to print FoxPro form

User rating: 10/10 (1 votes)
Rate this code sample:
  • ~
More code examples    Listed functions    Add comment     W32 Constants      Translate this page Printer friendly version of this code sample
Before you begin:
Call this code from a method or event of FoxPro form to print image of the form on your default printer.

The window handle of the form is obtained through GetFocus function. For that a form has to be active and own the keyboard focus. In VFP7 and later, use ThisForm.HWnd instead.

See also:

Download ScreenCapture Library

  • How to print a FoxPro form using Metafile API functions
  • GDI+: sending image of FoxPro form to printer
  • Storing screen shot of a form to a BMP file
  • Storing clipboard contents to a BMP file
  • Using the LoadImage() to display a BMP file on the main VFP window
  • How to print a BMP file
  •  
      Members area. Log in to view this example.
     
      User name:
      Password:
     
     
      Forgot your password?
     
      Sign up for
    the Membership
     
     


    User rating: 10/10 (1 votes)
    Rate this code sample:
    • ~
    7225 bytes  
    Created: 2001-09-19 12:00:00  
    Modified: 2011-03-28 09:43:35  
    Visits in 7 days: 278  
    Listed functions:
    BitBlt
    CreateCompatibleBitmap
    CreateCompatibleDC
    DeleteDC
    DeleteObject
    EndDoc
    EndPage
    GetDeviceCaps
    GetDIBits
    GetFocus
    GetWindowDC
    GetWindowRect
    GlobalAlloc
    GlobalFree
    PrintDlg
    ReleaseDC
    SelectObject
    StartDoc
    StartPage
    StretchDIBits
    Printer friendly API declarations
    My comment:
    At the beginning two device contexts are retrieved:
    - source device context from an active form
    - destination device context from a default printer -- PrintDlg is used

    It is not possible to transfer bitmap data directly between these device contexts -- at least to my knowledge. That is why you need a mediator -- the compatible device context and the compatible bitmap selected into it.

    The compatible means that these both have properties similar to their form counterparts.

    Bitmap information (both headers and data) is copied from the form to the compatible bitmap via the BitBlt function. Then device-independent bitmap data is selected from this temporary bitmap via the GetDIBits, next to be sent to the printer device context using the StretchDIBits function.

    The last transfer is wrapped into the StartDoc | StartPage ... EndPage | EndDoc calls.

    To keep the code short several simplifications have been made: only one page is printed regardless of the size of the form; no control of the page orientation.

    The PRINTDLG structure, one used to initialize the printer settings, is mostly populated with zeros. That means all default printing settings are applied: one copy, all pages, portrait etc. To switch, for example, to the album orientation, populate correspondent members of this structure. Check this example.
    Word Index links for this example:
    Translate this page:
      Spanish    Portuguese    German    French    Italian  
    FreeTranslation.com offers instant, free translations of text or web pages.
    User Contributed Notes:
    There are no notes on this subject.


    Copyright 2001-2014 News2News, Inc. Before reproducing or distributing any data from this site please ask for an approval from its owner. Unless otherwise specified, this page is for your personal and non-commercial use. The information on this page is presented AS IS, meaning that you may use it at your own risk. Microsoft Visual FoxPro and Windows are trade marks of Microsoft Corp. All other trademarks are the property of their respective owners. 

    Privacy policy
    Credits: PHP (4.4.9), an HTML-embedded scripting language, MySQL (5.1.68), the Open Source standard SQL database, AceHTML Freeware Version 4, freeware HTML Editor of choice.   Hosted by Korax Online Inc.
    Last Topics Visited (54.243.12.156)
    1 sec.Example: 'How to create MD-5 and SHA-1 hash values from a string'
    4 sec.Function: 'RegCreateKeyEx'
    9 sec.Function: 'JetRetrieveColumn'
    Google
    Advertise here!