diff --git a/gtkarea/area.c b/gtkarea/area.c
index 8e00ce24..ccf1e47a 100644
--- a/gtkarea/area.c
+++ b/gtkarea/area.c
@@ -1,6 +1,10 @@
 // 4 september 2015
 #include "area.h"
 
+struct uiDrawContext {
+	cairo_t *cr;
+};
+
 struct areaPrivate {
 	uiArea *a;
 	uiAreaHandler *ah;
@@ -121,8 +125,10 @@ static gboolean areaWidget_draw(GtkWidget *w, cairo_t *cr)
 	struct areaPrivate *ap = a->priv;
 	uiAreaDrawParams dp;
 	double clipX0, clipY0, clipX1, clipY1;
+	uiDrawContext ctxt;
 
-	// TODO dp.Context
+	ctxt.cr = cr;
+	dp.Context = &ctxt;
 
 	dp.ClientWidth = ap->clientWidth;
 	dp.ClientHeight = ap->clientHeight;
@@ -133,6 +139,14 @@ static gboolean areaWidget_draw(GtkWidget *w, cairo_t *cr)
 	dp.ClipWidth = clipX1 - clipX0;
 	dp.ClipHeight = clipY1 - clipY0;
 
+	// on GTK+ you're not supposed to care about high-DPI scaling
+	// instead, pango handles scaled text rendering for us
+	// this doesn't handle non-text cases, but neither do other GTK+ programs, so :/
+	// wayland and mir GDK are hardcoded to 96dpi; X11 uses this as a fallback
+	// thanks to hergertme in irc.gimp.net/#gtk+ for clarifying things
+	dp.DPIX = 96;
+	dp.DPIY = 96;
+
 	dp.HScrollPos = gtk_adjustment_get_value(ap->ha);
 	dp.VScrollPos = gtk_adjustment_get_value(ap->va);
 
diff --git a/gtkarea/ui.h b/gtkarea/ui.h
index 9032f9a7..2d7c15e6 100644
--- a/gtkarea/ui.h
+++ b/gtkarea/ui.h
@@ -4,6 +4,8 @@ typedef struct uiArea uiArea;
 typedef struct uiAreaHandler uiAreaHandler;
 typedef struct uiAreaDrawParams uiAreaDrawParams;
 
+typedef struct uiDrawContext uiDrawContext;
+
 struct uiAreaHandler {
 	void (*Draw)(uiAreaHandler *, uiArea *, uiAreaDrawParams *);
 	uintmax_t (*HScrollMax)(uiAreaHandler *, uiArea *);
@@ -11,7 +13,7 @@ struct uiAreaHandler {
 };
 
 struct uiAreaDrawParams {
-	// TODO context
+	uiDrawContext *Context;
 
 	intmax_t ClientWidth;
 	intmax_t ClientHeight;
@@ -21,8 +23,8 @@ struct uiAreaDrawParams {
 	intmax_t ClipWidth;
 	intmax_t ClipHeight;
 
-//TODO	xxxx DPIX;
-//TODO	xxxx DPIY;
+	int DPIX;
+	int DPIY;
 
 	intmax_t HScrollPos;
 	intmax_t VScrollPos;