int cdactivate(cdCtxCanvas *ctxcanvas)
{
if (ctxcanvas->hWnd)
{
RECT rect;
GetClientRect(ctxcanvas->hWnd, &rect);
ctxcanvas->canvas->w = rect.right - rect.left;
ctxcanvas->canvas->h = rect.bottom - rect.top;
ctxcanvas->canvas->bpp = cdGetScreenColorPlanes();
}
/* Se nao e' ownwer, tem que restaurar o contexto */
if (!ctxcanvas->isOwnedDC)
{
cairo_surface_t *surface;
if (ctxcanvas->hDC) /* deactivate not called */
{
cairo_destroy(ctxcanvas->cr);
ReleaseDC(ctxcanvas->hWnd, ctxcanvas->hDC);
}
ctxcanvas->hDC = GetDC(ctxcanvas->hWnd);
surface = cairo_win32_surface_create(ctxcanvas->hDC);
ctxcanvas->cr = cairo_create(surface);
cairo_surface_destroy(surface);
}
ctxcanvas->canvas->w_mm = ((double)ctxcanvas->canvas->w) / ctxcanvas->canvas->xres;
ctxcanvas->canvas->h_mm = ((double)ctxcanvas->canvas->h) / ctxcanvas->canvas->yres;
if (ctxcanvas->canvas->use_matrix)
ctxcanvas->canvas->cxTransform(ctxcanvas, ctxcanvas->canvas->matrix);
return CD_OK;
}
static void cdlua_getscreencolorplanes(void)
{
int L_result = cdGetScreenColorPlanes();
lua_pushnumber(L_result);
}