Using Win32 functions in Visual FoxPro Image Gallery
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Device Context
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ChangeDisplaySettings
CreateCompatibleDC
CreateDC
DeleteDC
DeleteObject
EnumDisplayDevices
EnumDisplaySettings
GetDC
GetDeviceCaps
GetObject
GetObjectType
ReleaseDC
SelectObject
Code examples:
Converting twips to pixels and vice versa
Copying picture of the active form to the Clipboard using Enhanced Metafile API functions
Displaying the associated icons and descriptions for files and folders
How to find which fonts Windows uses for drawing captions, menus and message boxes
How to print a bitmap file
How to print FoxPro form
How to print FoxPro form -- II
How to print picture stored in enhanced-format metafile (*.emf)
How to view icons stored in executable files (Icon Viewer) - II
Printing text with the Escape function
Retrieving graphic capabilities of default printer
Retrieving graphic capabilities of your display
Storing screen shot of a form to enhanced metafile (*.emf)
Subclassing CommandButton control to create BackColor property
Vertical Label control
How to print FoxPro form -- II

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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. Window handle of the form is obtained through GetFocus function. That is why this form has to be active, possessing the keyboard focus.

This code sample is based on Enhanced Metafile API functions. In a similar example How to print a FoxPro form a "bitmap" approach is used.

Enhanced metfaile functions make this code sample comparatively short and easy to understand.

See also:
  • How to print FoxPro form (GDI)
  • 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
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    		3814 bytes  
    Created: 2003-05-26 09:44:05  
    Modified: 2011-12-10 09:20:22  
    Visits in 7 days: 136  
    Listed functions:
    BitBlt
    CloseEnhMetaFile
    CreateEnhMetaFile
    DeleteDC
    DeleteEnhMetaFile
    EndDoc
    EndPage
    GetDeviceCaps
    GetFocus
    GetWindowDC
    GetWindowRect
    PlayEnhMetaFile
    PrintDlg
    ReleaseDC
    StartDoc
    StartPage
    		Printer friendly API declarations
    My comment:


    #kwd: sln_printform.
    Word Index links for this example:
    Bitmap
    vfp window
    main vfp window
    Clipboard
    GDI+
    window handle
    keyboard
    default printer
    screen shot of a form
    storing screen shot of a form
    metafile
    clipboard content
    keyboard focus
    bmp file
    clipboard contents to a bmp file
    contents to a bmp file
    storing clipboard contents to a bmp file
    enhanced metafile
    bmp file on the main vfp window
    display a bmp file on the main
    form to a bmp file
    shot of a form to a bmp
    print a bmp file
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    User Contributed Notes:
    Willson | 2007-08-23 14:52:42
    I have a question about this,

    * scaling factor values from screen to printer
    xScale = GetDeviceCaps(hPrnDC, HORZRES)/(GetDeviceCaps(hPrnDC, HORZSIZE) * 100)
    yScale = GetDeviceCaps(hPrnDC, VERTRES)/(GetDeviceCaps(hPrnDC, VERTSIZE) * 100)
    rcMeta = num2dword(0) + num2dword(0) + num2dword(nWidth*xScale) + num2dword(nHeight*yScale)

    The code following the comment, "scaling factor values from screen to printer" seems to only reference hPrnDC in each of the calls to GetDeviceCaps() -- no reference to a screen DC -- whereas in example #158, there is an identical comment which is followed by different code:

    * scaling factor values from screen to printer
    xScale = GetDeviceCaps(hPrnDC, LOGPIXELSX)/GetDeviceCaps(hFormDC, LOGPIXELSX)
    yScale = GetDeviceCaps(hPrnDC, LOGPIXELSY)/GetDeviceCaps(hFormDC, LOGPIXELSY)

    Please advise? Thanks.
    Log in to post a comment

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