🚀 go-pugleaf

JD wrote:

>I'm at a bit of a loss with how to proceed with a print preview.

Do you have the BDS or TCE?
Searching in the BDS help for preview, the #1 hit is for VC++ MFC
When selecting a printer font, an apropriate screen font is chosen to
match it.
This makes sense.
More under Print Preview Architecture
There are also several EnumFont* functions to help confuse matters.


Something along this line might work
Except display the BMP instead of saving to file.
If you have fancier printing requirements, the DC is available for
other functions as well.


struct CPBstruct{
        HDC			printerDC;
        HFONT		printerFont;
        unsigned long		printerDy;
        unsigned long		printerDx;
        Graphics::TBitmap	 * bmp;
};

extern "C"
CPBstruct* __declspec(dllexport) WINAPI CreatePrinterBitmap(
		DWORD	 paperheightX100,
		DWORD	 paperwidthX100,
		DWORD	 topmarginX100,
		DWORD	 leftmarginX100,
		DWORD	 vertdpi,
		DWORD	 horizdpi,
		DWORD	 rows,
		DWORD	 cols,
		char	 orientation,
		bool	 mono )
{
        CPBstruct*c = new CPBstruct;
        c->bmp = new Graphics::TBitmap();
        c->bmp->Monochrome = mono;

        unsigned long height = paperheightX100 - topmarginX100;
        unsigned long width = paperwidthX100 - leftmarginX100;
                c->bmp->Height = (vertdpi * height) / 100;
                c->bmp->Width = (horizdpi * width) / 100;

        c->printerDC = c->bmp->Canvas->Handle;
        c->printerDy = c->bmp->Height / rows;
        c->printerDx = c->bmp->Width / cols;

        c->printerFont= CreateFont(
                        c->printerDy-2, c->printerDx-2,
                        0,                  // angle
                        0,                  // base-
                        FW_THIN,         // font weight
                        FALSE,              // italic attrib
                        FALSE,             // underline att
                        FALSE,            // strikeout att
                        OEM_CHARSET,         // character set identif
                        OUT_TT_PRECIS,      // output precision
                        CLIP_DEFAULT_PRECIS,    // clipping precision
                        DRAFT_QUALITY,      // output quality
                        FIXED_PITCH+FF_MODERN,  // pitch and family
                        "Courier New"      // pointer to typeface name
        );
        return c;
}

extern "C"
void __declspec(dllexport) WINAPI PrintOnPrinterBitmap(
                                CPBstruct* c,
                                unsigned long y, unsigned long x,
                                char*str, unsigned long z)
{
        SetTextAlign( c->printerDC, TA_LEFT+TA_TOP+TA_NOUPDATECP );
        SetBkMode( c->printerDC, TRANSPARENT );

        ExtTextOut( c->printerDC, c->printerDx*x, c->printerDy*y,
                                0, 
                                (RECT*)NULL,
                                str,
                                z, 
                                (int*)NULL );
}

extern "C"
void __declspec(dllexport) WINAPI SavePrinterBitmap(
                                CPBstruct* c,
                                char*filename )
{
        c->bmp->SaveToFile( filename );
}