Using Win32 functions in Visual FoxPro Image Gallery
Code examples:
Obtaining Shell32.dll version
Using the FindMediaType function
How to assemble an array of strings and pass it to external function
How to enumerate sessions and processes on a specified terminal server
Reading parameters of streams in AVI file
Retrieving names for the registered clipboard formats
Scanning the hierarchy of child windows down from the main VFP window
Using InternetSetFilePointer when resuming interrupted download from the Internet
Winsock: retrieving directory listing from an FTP server using passive data connection (FTP, port 21)
Writing to INI file
Drawing Windows predefined bitmaps using the LoadBitmap functions
Exporting DLL icon resources as .ICO files
Extended MessageBox Class
GDI+: sending image of FoxPro form to printer
Placing On-screen Alert on top of all windows
Passing data records between VFP applications via the Clipboard
Starting a dialog box for connecting to network resources (mapping network drive)
Starting an external application in VFP using WinExec
Time in milliseconds represented as string (e.g. 1 hour 24 min 36 sec)
Windows Shell Icons displayed and exported to ICO files (Vista)
Downloading files from the FTP server using InternetReadFile
How to delete IE cookies, clear IE history and delete files in Temporary Internet Files directory
How to find the application associated with a file name
Programmatically removing submenus from VFP main menu
Printing text on the main VFP window

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More code examples    Listed functions    Add comment     W32 Constants      Translate this page Printer friendly version of this code sample
 
#DEFINE ANSI_CHARSET          0
#DEFINE OUT_DEFAULT_PRECIS    0
#DEFINE OUT_DEVICE_PRECIS     5
#DEFINE OUT_OUTLINE_PRECIS    8
 
#DEFINE CLIP_DEFAULT_PRECIS   0
#DEFINE CLIP_STROKE_PRECIS    2
 
#DEFINE DEFAULT_QUALITY       0
#DEFINE PROOF_QUALITY         2
 
#DEFINE DEFAULT_PITCH         0
#DEFINE FW_BOLD             700
 
#DEFINE TRANSPARENT           1
#DEFINE OPAQUE                2
 
    DO decl
 
    lcText = "Printing Text"
    FOR ii=200 TO 1 STEP-1
        lnColor = Rgb(Max(0,255-ii), Max(0,128-ii*5), Min(255,128+ii*10))
        = _print (lcText, lnColor, -ii)
 
        ii = ii - 30
        = _print (lcText, Rgb(80,80,80), -ii)
    ENDFOR
    = _print (lcText, Rgb(164,0,0), 0)
 
PROCEDURE  _print (lcText, lnColor, lnAngle)
    hFont = CreateFont (;
        100,0, lnAngle,lnAngle, FW_BOLD, 0,0,0, ANSI_CHARSET,;
        OUT_OUTLINE_PRECIS, CLIP_STROKE_PRECIS,;
        PROOF_QUALITY, DEFAULT_PITCH, "Times New Roman")
 
    hwnd = GetActiveWindow()
    hdc = GetWindowDC (hwnd)
 
    * select new font into the device context
    * and delete the old one
    = DeleteObject (SelectObject (hdc, hFont))
 
    * set text color on a transparent background
    = SetTextColor (hdc, lnColor)
    = SetBkMode (hdc, TRANSPARENT)
 
    * the printing
    = TextOut (hdc, 50, 100, lcText, Len(lcText))
 
    * release system resources
    = DeleteObject (hFont)
    = ReleaseDC (hwnd, hdc)
 
PROCEDURE  decl
    DECLARE INTEGER GetActiveWindow IN user32
    DECLARE INTEGER GetWindowDC IN user32 INTEGER hwnd   
 
    DECLARE INTEGER DeleteObject IN gdi32 INTEGER hObject
    DECLARE INTEGER ReleaseDC IN user32;
        INTEGER hwnd, INTEGER hdc
 
    DECLARE INTEGER SetTextColor IN gdi32;
        INTEGER hdc, INTEGER crColor
 
    DECLARE INTEGER SelectObject IN gdi32;
        INTEGER hdc, INTEGER hObject
 
    DECLARE INTEGER TextOut IN gdi32;
        INTEGER hdc, INTEGER x, INTEGER y,;
        STRING  lpString, INTEGER nCount
 
    DECLARE INTEGER SetBkMode IN gdi32;
        INTEGER hdc, INTEGER iBkMode
 
    DECLARE INTEGER CreateFont IN gdi32;
        INTEGER nHeight, INTEGER nWidth,;
        INTEGER nEscapement, INTEGER nOrientation,;
        INTEGER fnWeight, INTEGER fdwItalic,;
        INTEGER fdwUnderline, INTEGER fdwStrikeOut,;
        INTEGER fdwCharSet,;
        INTEGER fdwOutputPrecision,;
        INTEGER fdwClipPrecision,;
        INTEGER fdwQuality,;
        INTEGER fdwPitchAndFamily,;
        STRING  lpszFace
 
 

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2299 bytes  
Created: 2001-07-12 12:00:00  
Modified: 2001-11-04 21:25:36  
Visits in 7 days: 106  
Listed functions:
CreateFont
DeleteObject
GetActiveWindow
GetWindowDC
ReleaseDC
SelectObject
SetBkMode
SetTextColor
TextOut
Printer friendly API declarations
My comment:
Any output from FoxPro command like CLEAR and ?/?? wipes the image produced by this code. Curiously CLEAR command even standing above the TextOut in a source code sometimes removes any printing produced by the TextOut.
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