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using System;
using System.Windows.Forms;
using FreeImageAPI;
namespace Sample04
{
public partial class MainForm : Form
{
string message = null;
[STAThread]
static void Main()
{
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(new MainForm());
}
public MainForm()
{
InitializeComponent();
FreeImageEngine.Message += new OutputMessageFunction(FreeImage_Message);
}
~MainForm()
{
FreeImageEngine.Message -= new OutputMessageFunction(FreeImage_Message);
}
void FreeImage_Message(FREE_IMAGE_FORMAT fif, string message)
{
if (this.message == null)
{
this.message = message;
}
else
{
this.message += "\n" + message;
}
}
private void bOpenFile_Click(object sender, EventArgs e)
{
// Resetting filename
ofd.FileName = "";
// Was a file selected
if (ofd.ShowDialog() == DialogResult.OK)
{
// Format is stored in 'format' on successfull load.
FREE_IMAGE_FORMAT format = FREE_IMAGE_FORMAT.FIF_UNKNOWN;
// Try loading the file
FIBITMAP dib = FreeImage.LoadEx(ofd.FileName, ref format);
try
{
// Error handling
if (dib.IsNull)
{
// Chech whether FreeImage generated an error messe
if (message != null)
{
MessageBox.Show("File could not be loaded!\nError:{0}", message);
}
else
{
MessageBox.Show("File could not be loaded!", message);
}
return;
}
// Read width
lWidth.Text = String.Format("Width: {0}", FreeImage.GetWidth(dib));
// Read height
lHeight.Text = String.Format("Width: {0}", FreeImage.GetWidth(dib));
// Read color depth
lBPP.Text = String.Format("Color Depth: {0}", FreeImage.GetBPP(dib));
// Read red bitmask (16 - 32 bpp)
lRedMask.Text = String.Format("Red Mask: 0x{0:X8}", FreeImage.GetRedMask(dib));
// Read green bitmask (16 - 32 bpp)
lBlueMask.Text = String.Format("Green Mask: 0x{0:X8}", FreeImage.GetGreenMask(dib));
// Read blue bitmask (16 - 32 bpp)
lGreenMask.Text = String.Format("Blue Mask: 0x{0:X8}", FreeImage.GetBlueMask(dib));
// Read image type (FI_BITMAP, FIT_RGB16, FIT_COMPLEX ect)
lImageType.Text = String.Format("Image Type: {0}", FreeImage.GetImageType(dib));
// Read x-axis dpi
lDPIX.Text = String.Format("DPI X: {0}", FreeImage.GetResolutionX(dib));
// Read y-axis dpi
lDPIY.Text = String.Format("DPI Y: {0}", FreeImage.GetResolutionY(dib));
// Read file format
lFormat.Text = String.Format("File Format: {0}", FreeImage.GetFormatFromFIF(format));
}
catch
{
}
// Always unload bitmap
FreeImage.UnloadEx(ref dib);
// Reset the error massage buffer
message = null;
}
// No file was selected
else
{
MessageBox.Show("No file loaded.", "Error");
}
}
}
}
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