🚀 go-pugleaf

Richard Yu wrote:

>My printer is a network printer, I tried this code,
>
>char *PortName="IP_192.168.0.55 ";
>   FILE *Printer=fopen(PortName,"wb");
>   fprintf(Printer,"Text:\r\n\n","test string ");
>
>it didn't do any thing , don't know why.

Is it a Page printer? (Laserjet/multifunction type)
Try adding
	fprintf(Printer,"\f");
	fclose(Printer);

I use one of 3 methods to print (depending on the type of printer),
all Win32 API.

1) Essentially "DOS" mode
	CreateFile
	WriteFile
	CloseHandle
Usually write a form-feed(12) before closing the handle.

2) Simple "raw" mode
	OpenPrinter
	StartDocPrinter
	StartPagePrinter
	WritePrinter
	EndPagePrinter
	EndDocPrinter
	ClosePrinter
I think EndPagePrinter causes a form-feed. But I always take care of
it myself.

3) Full Windows DC mode
	OpenPrinter

num_bytes=DocumentProperties(NULL,printerHandle,&printerfile_port,NULL,NULL,0);
	// allocate the memory 

DevMode=(DEVMODE*)GlobalAlloc(GMEM_FIXED|GMEM_ZEROINIT,num_bytes);
	// call DocumentProperties() again, to get the devmode.

DocumentProperties(NULL,printerHandle,&printerfile_port,DevMode,NULL,DM_OUT_BUFFER);
	printerDC = CreateDC( NULL, &printerfile_port, NULL, DevMode);
	GlobalFree(DevMode);
	printerJob=StartDoc(printerDC,&lpdi);

	StartPage(printerDC);
	SetTextAlign(printerDC,TA_LEFT+TA_TOP+TA_NOUPDATECP);
	SetBkMode (printerDC, TRANSPARENT);
	ExtTextOut(printerDC,printerDx*x,printerDy*y,
		0,	// text-output options
		(RECT*)NULL,	// optional clipping and/or opaquing 
		str,		// points to string
		z,		// number of characters in string 
		(INT *)NULL ); 	// pointer to array of intercharacter
	EndPage(printerDC);
	EndDoc(printerDC);
	DeleteDC(printerDC);
	ClosePrinter(printerHandle);