openGL text in multiple windows

I have decided to try drawing text using wglUseFontBitmaps() (in openGL). I have multple windows, and I want to be able to draw on them with the same font. The implementation I have so far is this :

Code:

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int base;
HFONT        font;

void printText (const char *input, ...){
        char                text[256];
        va_list                ap;

        if (input == NULL) return;

        va_start(ap, input);
        vsprintf(text, input, ap);
        va_end(ap);

        glPushAttrib(GL_LIST_BIT);
        glListBase(base - 32);

        glCallLists(strlen(text), GL_UNSIGNED_BYTE, text);
        glPopAttrib();
}

void killFont(){
        glDeleteLists(base, 96);
}

void gui_drawtext(char *text, Window *win){
        HFONT        oldfont;

        if (win){
                wglMakeCurrent(win->hdc, win->hrc);

                oldfont = (HFONT)SelectObject (win->hdc, font);
                wglUseFontBitmaps (win->hdc, 32, 96, base);
                SelectObject (win->hdc, oldfont);

                glRasterPos2f(20.0F, 0.0F);

                printText(text);

                killFont();
        }
}

void buildLargeFont(){
        base = glGenLists(96);

        font = CreateFont(20, 0, 0, 0, 100, FALSE, FALSE, FALSE,
                                ANSI_CHARSET, OUT_TT_PRECIS, CLIP_DEFAULT_PRECIS,
                                ANTIALIASED_QUALITY, FF_DONTCARE|DEFAULT_PITCH, "Comic Sans MS");
}

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I suspect that this implementation is very slow though, because wglUseFontBitmaps() is called on every frame when text is drawn. Does anyone know how to make this faster ? Keep in mind that I have to use multiple windows, with each window its own DC and RC;

Interesting. Consider raster fonts.