Created
January 22, 2012 07:15
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darkfall revised this gist
Jan 22, 2012 . 1 changed file with 31 additions and 35 deletions.There are no files selected for viewing
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode charactersOriginal file line number Diff line number Diff line change @@ -24,55 +24,51 @@ public static bool Convert(System.IO.Stream input_stream, System.IO.Stream outpu System.IO.MemoryStream mem_data = new System.IO.MemoryStream(); new_bit.Save(mem_data, System.Drawing.Imaging.ImageFormat.Png); System.IO.BinaryWriter icon_writer = new System.IO.BinaryWriter(output_stream); if (output_stream != null && icon_writer != null) { // 0-1 reserved, 0 icon_writer.Write((byte)0); icon_writer.Write((byte)0); // 2-3 image type, 1 = icon, 2 = cursor icon_writer.Write((short)1); // 4-5 number of images icon_writer.Write((short)1); // image entry 1 // 0 image width icon_writer.Write((byte)width); // 1 image height icon_writer.Write((byte)height); // 2 number of colors icon_writer.Write((byte)0); // 3 reserved icon_writer.Write((byte)0); // 4-5 color planes icon_writer.Write((short)0); // 6-7 bits per pixel icon_writer.Write((short)32); // 8-11 size of image data icon_writer.Write((int)mem_data.Length); // 12-15 offset of image data icon_writer.Write((int)(6 + 16)); // write image data // png data must contain the whole png data file icon_writer.Write(mem_data.ToArray()); icon_writer.Flush(); return true; } } return false; } -
Jan 22, 2012 . 1 changed file with 4 additions and 4 deletions.There are no files selected for viewing
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode charactersOriginal file line number Diff line number Diff line change @@ -1,10 +1,10 @@ class PngIconConverter { /* input image with width = height is suggested to get the best result */ /* png support in icon was introduced in Windows Vista */ public static bool Convert(System.IO.Stream input_stream, System.IO.Stream output_stream, int size, bool keep_aspect_ratio = false) { System.Drawing.Bitmap input_bit = (System.Drawing.Bitmap)System.Drawing.Bitmap.FromStream(input_stream); if (input_bit != null) { int width, height; @@ -17,7 +17,7 @@ public static bool Convert(System.IO.Stream input_stream, System.IO.Stream outpu { width = height = size; } System.Drawing.Bitmap new_bit = new System.Drawing.Bitmap(input_bit, new System.Drawing.Size(width, height)); if (new_bit != null) { // save the resized png into a memory stream for future use @@ -79,7 +79,7 @@ public static bool Convert(System.IO.Stream input_stream, System.IO.Stream outpu return false; } public static bool Convert(string input_image, string output_icon, int size, bool keep_aspect_ratio = false) { System.IO.FileStream input_stream = new System.IO.FileStream(input_image, System.IO.FileMode.Open); System.IO.FileStream output_stream = new System.IO.FileStream(output_icon, System.IO.FileMode.OpenOrCreate); -
Jan 22, 2012 .There are no files selected for viewing
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode charactersOriginal file line number Diff line number Diff line change @@ -0,0 +1,94 @@ class PngIconConverter { /* input image with width = height is suggested to get the best result */ /* png support in icon was introduced in Windows Vista */ public static bool Convert(System.IO.Stream input_stream, System.IO.Stream output_stream, int size, bool keep_aspect_ratio = false) { Bitmap input_bit = (Bitmap)Bitmap.FromStream(input_stream); if (input_bit != null) { int width, height; if (keep_aspect_ratio) { width = size; height = input_bit.Height / input_bit.Width * size; } else { width = height = size; } Bitmap new_bit = new Bitmap(input_bit, new Size(width, height)); if (new_bit != null) { // save the resized png into a memory stream for future use System.IO.MemoryStream mem_data = new System.IO.MemoryStream(); new_bit.Save(mem_data, System.Drawing.Imaging.ImageFormat.Png); if (mem_data != null) { System.IO.BinaryWriter icon_writer = new System.IO.BinaryWriter(output_stream); if (output_stream != null && icon_writer != null) { // 0-1 reserved, 0 icon_writer.Write((byte)0); icon_writer.Write((byte)0); // 2-3 image type, 1 = icon, 2 = cursor icon_writer.Write((short)1); // 4-5 number of images icon_writer.Write((short)1); // image entry 1 // 0 image width icon_writer.Write((byte)width); // 1 image height icon_writer.Write((byte)height); // 2 number of colors icon_writer.Write((byte)0); // 3 reserved icon_writer.Write((byte)0); // 4-5 color planes icon_writer.Write((short)0); // 6-7 bits per pixel icon_writer.Write((short)32); // 8-11 size of image data icon_writer.Write((int)mem_data.Length); // 12-15 offset of image data icon_writer.Write((int)(6 + 16)); // write image data // png data must contain the whole png data file icon_writer.Write(mem_data.ToArray()); icon_writer.Flush(); return true; } } return false; } return false; } return false; } public static bool Convert(string input_image, string output_icon, int size, bool keep_aspect_ratio=false) { System.IO.FileStream input_stream = new System.IO.FileStream(input_image, System.IO.FileMode.Open); System.IO.FileStream output_stream = new System.IO.FileStream(output_icon, System.IO.FileMode.OpenOrCreate); bool result = Convert(input_stream, output_stream, size, keep_aspect_ratio); input_stream.Close(); output_stream.Close(); return result; } }