Minor changes to C# Mono API

3 files changed, 35 insertions, 5 deletions

diff --git a/demos/csharp/api/ghostmono.cs b/demos/csharp/api/ghostmono.cs
index 731589d01..4247c8894 100644
--- a/demos/csharp/api/ghostmono.cs
+++ b/demos/csharp/api/ghostmono.cs
@@ -1003,8 +1003,38 @@ namespace GhostMono
 		}
 
 		/* Launch a thread rendering all the pages with the display device
+		 * to collect thumbnail images via init_with_args.   */
+		public gsStatus DisplayDeviceRenderThumbs(String fileName, double zoom, bool aa)
+		{
+			gsParamState_t gsparams = new gsParamState_t();
+			int format = (gsConstants.DISPLAY_COLORS_RGB |
+							gsConstants.DISPLAY_DEPTH_8 |
+							gsConstants.DISPLAY_LITTLEENDIAN);
+			int resolution = (int)(72.0 * zoom + 0.5);
+			GS_Task_t task = GS_Task_t.DISPLAY_DEV_THUMBS_NON_PDF;
+
+			gsparams.args = new List<string>();
+			gsparams.args.Add("gs");
+			gsparams.args.Add("-dFirstPage=1"); /* To ensure gdevflp is setup */
+			gsparams.args.Add("-r" + resolution);
+			if (aa)
+			{
+				gsparams.args.Add("-dTextAlphaBits=4");
+				gsparams.args.Add("-dGraphicsAlphaBits=4");
+			}
+			gsparams.args.Add("-sDEVICE=display");
+			gsparams.args.Add("-dDisplayFormat=" + format);
+			gsparams.args.Add("-f");
+			gsparams.args.Add(fileName);
+			gsparams.task = task;
+			gsparams.currpage = 0;
+            m_params.currpage = 0;
+			return RunGhostscriptAsync(gsparams);
+		}
+
+		/* Launch a thread rendering all the pages with the display device
 		 * to collect thumbnail images or full resolution.   */
-		public gsStatus gsDisplayDeviceRenderAll(String fileName, double zoom, bool aa, GS_Task_t task)
+		public gsStatus DisplayDeviceRenderAll(String fileName, double zoom, bool aa, GS_Task_t task)
 		{
 			gsParamState_t gsparams = new gsParamState_t();
 			int format = (gsConstants.DISPLAY_COLORS_RGB |
@@ -1036,7 +1066,7 @@ namespace GhostMono
 
 		/* Launch a thread rendering a set of pages with the display device.  For use with languages
 		   that can be indexed via pages which include PDF and XPS */
-		public gsStatus gsDisplayDeviceRenderPages(String fileName, int first_page, int last_page, double zoom)
+		public gsStatus DisplayDeviceRenderPages(String fileName, int first_page, int last_page, double zoom)
 		{
 			gsParamState_t gsparams = new gsParamState_t();
 			int format = (gsConstants.DISPLAY_COLORS_RGB |
diff --git a/demos/csharp/linux/gtk_viewer/src/MainRender.cs b/demos/csharp/linux/gtk_viewer/src/MainRender.cs
index 9542e0cc1..f8c0d2e0c 100644
--- a/demos/csharp/linux/gtk_viewer/src/MainRender.cs
+++ b/demos/csharp/linux/gtk_viewer/src/MainRender.cs
@@ -122,7 +122,7 @@ namespace gs_mono_example
             m_busy_render = true;
             m_ghostscript.PageRenderedCallBack += new GSMONO.PageRendered(gsPageRendered);
             AddProgressBar("Rendering Pages");
-            m_ghostscript.gsDisplayDeviceRenderAll(m_currfile, m_doczoom, m_aa, GS_Task_t.DISPLAY_DEV_NON_PDF);
+            m_ghostscript.DisplayDeviceRenderAll(m_currfile, m_doczoom, m_aa, GS_Task_t.DISPLAY_DEV_NON_PDF);
 		}
 
 		/* Render all, but only if not already busy,  called via zoom or aa changes */
diff --git a/demos/csharp/linux/gtk_viewer/src/MainThumbRendering.cs b/demos/csharp/linux/gtk_viewer/src/MainThumbRendering.cs
index 726ad8025..9e1b0bcc7 100644
--- a/demos/csharp/linux/gtk_viewer/src/MainThumbRendering.cs
+++ b/demos/csharp/linux/gtk_viewer/src/MainThumbRendering.cs
@@ -99,8 +99,8 @@ namespace gs_mono_example
             AddProgressBar("Rendering Thumbs");
             m_ghostscript.PageRenderedCallBack +=
                 new GSMONO.PageRendered(gsThumbRendered);
-            m_ghostscript.gsDisplayDeviceRenderAll(m_currfile,
-                Constants.SCALE_THUMB, false, GS_Task_t.DISPLAY_DEV_THUMBS_NON_PDF);
+            m_ghostscript.DisplayDeviceRenderThumbs(m_currfile,
+                Constants.SCALE_THUMB, false);
 		}
 	}
 }
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