VFP 愛用者社區

[snciset]

(1)我有在網站上搜尋到有關於garfield 大哥於96.04.29轉貼一個 frintform.prg的程式(請於本站打 "printform"搜尋即可),請教有辦法控制列時值印或橫印嗎?因我用EPSON 2120 LASER printer印出來是直印的,所以form被截掉一半
(2)可是我覺得foxpro 在列印的功能上好像比較薄弱,像我好像看過VB上就有form.printform可直接列印form,而foxpro就不行,但我查foxpro 的help檔案,"printform"是他的保留字,那既然foxpro沒有printform的功能,那他所謂把他當作保留字的作用是要做什麼呢?
再次叨擾各位大哥囉,尤其是(1)怎麼解決呢?

[syntech]

要 PRINTFORM 作什麼用途?

[snciset]

因我想把usr查詢之後顯示出來form的畫面整個直接印出,這樣相關單位才可以"覺得"是真的在我們單位查詢系統查印出來的,而不是以一般文書或其他處理"做"出來的(農保審查用)

[snciset]

我剛剛在do printform之前先執行了sys(1037)即印表對話框,可是就算選直印或橫印也不行耶(印出來都一個樣!),可能是printform.prg程式中改變了模式,可是printform我又看不大懂,只是套用garfield提供的列印程式,麻煩各位大哥能幫我解答一下該改哪裡呢?程式如下,很長喔~~

*******************************************
*-- 程序名稱：將表單的內容直接打印 --*
*-- 將窗口中的內容以一個位圖的形式打印 --*
*-- 程序作者：未知，來源論壇轉帖 --*
*-- 使用方法：在表單中執行該程序既可 --*
* 例：在某表單的一個command --*
* 按紐中執行 do PrintForm.prg --*
*******************************************

*-- 定義常量
#DEFINE LOGPIXELSX 88
#DEFINE LOGPIXELSY 90
#DEFINE PHYSICALOFFSETX 112
#DEFINE PHYSICALOFFSETY 113
#DEFINE SRCCOPY 13369376
#DEFINE DIB_RGB_COLORS 0

*-- 調用本程序段中的子過程
DO decl

*-- 定義變量
PRIVATE pnWidth, pnHeight, lnBitsPerPixel, lnBytesPerScan
STORE 0 TO pnWidth, pnHeight, lnBitsPerPixel, lnBytesPerScan
LOCAL hwnd, hFormDC, hPrnDC, hMemDC, hMemBmp, hSavedBitmap,;
xOffsPrn, yOffsPrn, xScale, yScale, lcDocInfo, lcBInfo, lpBitsArray

*-- 得到打印機設備的坐標偏移量
hPrnDC = getDefaultPrnDC() && 沒有進行錯誤檢查
xOffsPrn = GetDeviceCaps(hPrnDC, PHYSICALOFFSETX)
yOffsPrn = GetDeviceCaps(hPrnDC, PHYSICALOFFSETY)

*-- 得到屏幕的窗口句柄，及她們的寬度、高度等。
hwnd = GetFocus() && a window with keyboard focus
hFormDC = GetWindowDC(hwnd)
= getWinRect (hwnd, @pnWidth, @pnHeight)

*-- 根據屏幕和打印機得到縮放值
xScale = GetDeviceCaps(hPrnDC, LOGPIXELSX)/GetDeviceCaps(hFormDC,LOGPIXELSX)
yScale = GetDeviceCaps(hPrnDC, LOGPIXELSY)/GetDeviceCaps(hFormDC,LOGPIXELSY)

*-- 將屏幕的內容創建為位圖圖像數據
hMemDC = CreateCompatibleDC (hFormDC)
hMemBmp = CreateCompatibleBitmap (hFormDC, pnWidth, pnHeight)
hSavedBitmap = SelectObject(hMemDC, hMemBmp)

*-- 將位圖數據從屏幕拷貝到虛擬設備上
= BitBlt (hMemDC, 0,0, pnWidth,pnHeight, hFormDC, 0,0, SRCCOPY)
= SelectObject(hMemDC, hSavedBitmap)

* retrieving bits from the compatible bitmap into a buffer
* as a device-independent bitmap (DIB) with a BitsPerPixel value
* as one of the printer device context
lcBInfo = InitBitmapInfo(hPrnDC)
lpBitsArray = InitBitsArray()
= GetDIBits (hMemDC, hMemBmp, 0, pnHeight,;
lpBitsArray, @lcBInfo, DIB_RGB_COLORS)

lcDocInfo = Chr(20) + Repli(Chr(0), 19) && DOCINFO struct - 20 bytes
IF StartDoc(hPrnDC, @lcDocInfo) > 0
= StartPage(hPrnDC)

= StretchDIBits (hPrnDC, xOffsPrn, yOffsPrn,;
xOffsPrn + Int(xScale * pnWidth),;
yOffsPrn + Int(yScale * pnHeight),;
0,0, pnWidth,pnHeight, ;
lpBitsArray, @lcBInfo, DIB_RGB_COLORS, SRCCOPY)

= EndPage(hPrnDC)
= EndDoc(hPrnDC)
ENDIF

*-- 退出時釋放系統資源
= GlobalFree(lpBitsArray)
= DeleteObject(hMemBmp)
= DeleteDC(hMemDC)
= DeleteDC(hPrnDC)
= ReleaseDC(hwnd, hFormDC)
RETURN

PROCEDURE getWinRect (lnHwnd, lnWidth, lnHeight)
*-- 返回指定句柄的窗口的寬和高
#DEFINE maxDword 4294967295 && 0xffffffff
LOCAL lpRect, lnLeft, lnTop, lnRight, lnBottom
lpRect = REPLI (Chr(0), 16)
= GetWindowRect (lnHwnd, @lpRect)

lnRight = buf2dword(SUBSTR(lpRect, 9,4))
lnBottom = buf2dword(SUBSTR(lpRect, 13,4))

lnLeft = buf2dword(SUBSTR(lpRect, 1,4))
IF lnLeft > lnRight
lnLeft = lnLeft - maxDword
ENDIF
lnTop = buf2dword(SUBSTR(lpRect, 5,4))
IF lnTop > lnBottom
lnTop = lnTop - maxDword
ENDIF

lnWidth = lnRight - lnLeft
lnHeight = lnBottom - lnTop
RETURN

FUNCTION getDefaultPrnDC
* returns device context for the default printer
#DEFINE PD_RETURNDC 256
#DEFINE PD_RETURNDEFAULT 1024
LOCAL lcStruct, lnFlags
lnFlags = PD_RETURNDEFAULT + PD_RETURNDC

* fill PRINTDLG structure
lcStruct = num2dword(66) + Repli(Chr(0), 16) +;
num2dword(lnFlags) + Repli(Chr(0), 42)
IF PrintDlg (@lcStruct) <> 0
RETURN buf2dword (SUBSTR(lcStruct, 17,4))
ENDIF
RETURN 0

FUNCTION InitBitmapInfo(hTargetDC)
#DEFINE BI_RGB 0
#DEFINE RGBQUAD_SIZE 4 && RGBQUAD
#DEFINE BHDR_SIZE 40 && BITMAPINFOHEADER

LOCAL lnRgbQuadSize, lcRgbQuad, lcBIHdr

* use printer BitPerPixel value
lnBitsPerPixel = 24

* initializing BitmapInfoHeader structure
lcBIHdr = num2dword(BHDR_SIZE) +;
num2dword(pnWidth) + num2dword(pnHeight) +;
num2word(1) + num2word(lnBitsPerPixel) +;
num2dword(BI_RGB) + Repli(Chr(0), 20)

* creating a buffer for the color table
IF lnBitsPerPixel <= 8
lnRgbQuadSize = (2^lnBitsPerPixel) * RGBQUAD_SIZE
lcRgbQuad = Repli(Chr(0), lnRgbQuadSize)
ELSE
lcRgbQuad = ""
ENDIF
RETURN lcBIHdr + lcRgbQuad

PROCEDURE InitBitsArray()
#DEFINE GMEM_FIXED 0
LOCAL lnPtr, lnAllocSize

* making sure the value is DWORD-aligned
lnBytesPerScan = Int((pnWidth * lnBitsPerPixel) / 8 )

IF Mod(lnBytesPerScan, 4) <> 0
lnBytesPerScan = lnBytesPerScan + 4 - Mod(lnBytesPerScan, 4)
ENDIF

lnAllocSize = pnHeight * lnBytesPerScan
lnPtr = GlobalAlloc (GMEM_FIXED, lnAllocSize)
= ZeroMemory (lnPtr, lnAllocSize)
RETURN lnPtr

FUNCTION num2word (lnvalue)
RETURN Chr(MOD(m.lnvalue,256)) + CHR(INT(m.lnvalue/256))

FUNCTION num2dword (lnvalue)
#DEFINE m0 256
#DEFINE m1 65536
#DEFINE m2 16777216
LOCAL b0, b1, b2, b3
b3 = Int(lnvalue/m2)
b2 = Int((lnvalue - b3*m2)/m1)
b1 = Int((lnvalue - b3*m2 - b2*m1)/m0)
b0 = Mod(lnvalue, m0)
RETURN Chr(b0)+Chr(b1)+Chr(b2)+Chr(b3)

FUNCTION buf2word (lcBuffer)
RETURN Asc(SUBSTR(lcBuffer, 1,1)) + ;
Asc(SUBSTR(lcBuffer, 2,1)) * 256

FUNCTION buf2dword (lcBuffer)
RETURN Asc(SUBSTR(lcBuffer, 1,1)) + ;
Asc(SUBSTR(lcBuffer, 2,1)) * 256 +;
Asc(SUBSTR(lcBuffer, 3,1)) * 65536 +;
Asc(SUBSTR(lcBuffer, 4,1)) * 16777216

PROCEDURE decl && so many of them declared here
DECLARE INTEGER GetFocus IN user32
DECLARE INTEGER EndDoc IN gdi32 INTEGER hdc
DECLARE INTEGER GetWindowDC IN user32 INTEGER hwnd
DECLARE INTEGER DeleteObject IN gdi32 INTEGER hObject
DECLARE INTEGER CreateCompatibleDC IN gdi32 INTEGER hdc
DECLARE INTEGER ReleaseDC IN user32 INTEGER hwnd, INTEGER hdc
DECLARE INTEGER GetWindowRect IN user32 INTEGER hwnd, STRING @lpRect
DECLARE INTEGER GlobalAlloc IN kernel32 INTEGER wFlags, INTEGER dwBytes
DECLARE INTEGER GetDeviceCaps IN gdi32 INTEGER hdc, INTEGER nIndex
DECLARE INTEGER SelectObject IN gdi32 INTEGER hdc, INTEGER hObject
DECLARE INTEGER StartDoc IN gdi32 INTEGER hdc, STRING @ lpdi
DECLARE INTEGER GlobalFree IN kernel32 INTEGER hMem
DECLARE INTEGER PrintDlg IN comdlg32 STRING @ lppd
DECLARE INTEGER DeleteDC IN gdi32 INTEGER hdc
DECLARE INTEGER StartPage IN gdi32 INTEGER hdc
DECLARE INTEGER EndPage IN gdi32 INTEGER hdc

DECLARE RtlZeroMemory IN kernel32 As ZeroMemory;
INTEGER dest, INTEGER numBytes

DECLARE INTEGER CreateCompatibleBitmap IN gdi32;
INTEGER hdc, INTEGER nWidth, INTEGER nHeight

DECLARE INTEGER BitBlt IN gdi32;
INTEGER hDestDC, INTEGER x, INTEGER y,;
INTEGER nWidth, INTEGER nHeight, INTEGER hSrcDC,;
INTEGER xSrc, INTEGER ySrc, INTEGER dwRop

DECLARE INTEGER StretchDIBits IN gdi32;
INTEGER hdc, INTEGER XDest, INTEGER YDest,;
INTEGER nDestWidth, INTEGER nDestHeight, INTEGER XSrc,;
INTEGER YSrc, INTEGER nSrcWidth, INTEGER nSrcHeight,;
INTEGER lpBits, STRING @lpBitsInfo,;
INTEGER iUsage, INTEGER dwRop

DECLARE INTEGER GetDIBits IN gdi32;
INTEGER hdc, INTEGER hbmp, INTEGER uStartScan,;
INTEGER cScanLines, INTEGER lpvBits, STRING @lpbi,;
INTEGER uUsage
RETURN && decl