ImageCodecInfo.GetImageEncoders Método
Definición
Importante
Parte de la información hace referencia a la versión preliminar del producto, que puede haberse modificado sustancialmente antes de lanzar la versión definitiva. Microsoft no otorga ninguna garantía, explícita o implícita, con respecto a la información proporcionada aquí.
Devuelve una matriz de objetos ImageCodecInfo que contienen información sobre los codificadores de imagen integrados en GDI+.
public:
static cli::array <System::Drawing::Imaging::ImageCodecInfo ^> ^ GetImageEncoders();
public static System.Drawing.Imaging.ImageCodecInfo[] GetImageEncoders ();
static member GetImageEncoders : unit -> System.Drawing.Imaging.ImageCodecInfo[]
Public Shared Function GetImageEncoders () As ImageCodecInfo()
Devoluciones
Matriz de objetos ImageCodecInfo. Cada objeto ImageCodecInfo de la matriz contiene información acerca de uno de los codificadores de imagen integrados.
Ejemplos
El ejemplo siguiente está diseñado para su uso con Windows Forms y requiere PaintEventArgse
, que es un parámetro del Paint controlador de eventos. El código usa el GetImageEncoders método para recuperar toda la información del códec de todos los codificadores y códecs de imagen instalados y, a continuación, dibuja toda la información sobre cada códec en la pantalla.
private:
void GetImageEncodersExample(PaintEventArgs^ e)
{
// Get an array of available codecs.
array<ImageCodecInfo^>^ codecInfo;
codecInfo = ImageCodecInfo::GetImageEncoders();
int numCodecs = codecInfo->GetLength(0);
//numCodecs = 1;
// Set up display variables.
Color^ foreColor = Color::Black;
Drawing::Font^ font = gcnew Drawing::Font("Arial", 8);
// Check to determine whether any codecs were found.
if (numCodecs > 0)
{
// Set up an array to hold codec information. There are 9
// information elements plus 1 space for each codec, so 10
// times the number of codecs found is allocated.
array<String^>^ codecInfoStrings =
gcnew array<String^>(numCodecs * 10);
// Write all the codec information to the array.
for (int i = 0; i < numCodecs; i++)
{
codecInfoStrings[i * 10] = "Codec Name = " +
codecInfo[i]->CodecName;
codecInfoStrings[(i * 10) + 1] = "Class ID = " +
codecInfo[i]->Clsid.ToString();
codecInfoStrings[(i * 10) + 2] = "DLL Name = " +
codecInfo[i]->DllName;
codecInfoStrings[(i * 10) + 3] = "Filename Ext. = " +
codecInfo[i]->FilenameExtension;
codecInfoStrings[(i * 10) + 4] = "Flags = " +
codecInfo[i]->Flags.ToString();
codecInfoStrings[(i * 10) + 5] = "Format Descrip. = " +
codecInfo[i]->FormatDescription;
codecInfoStrings[(i * 10) + 6] = "Format ID = " +
codecInfo[i]->FormatID.ToString();
codecInfoStrings[(i * 10) + 7] = "MimeType = " +
codecInfo[i]->MimeType;
codecInfoStrings[(i * 10) + 8] = "Version = " +
codecInfo[i]->Version.ToString();
codecInfoStrings[(i * 10) + 9] = " ";
}
int numCodecInfo = codecInfoStrings->GetLength(0);
// Render all of the information to the screen.
int j = 20;
for (int i = 0; i < numCodecInfo; i++)
{
e->Graphics->DrawString(codecInfoStrings[i],
font, gcnew SolidBrush(*foreColor), 20, (float)j);
j += 12;
}
}
else
e->Graphics->DrawString("No Codecs Found",
font, gcnew SolidBrush(*foreColor), 20, 20);
}
private void GetImageEncodersExample(PaintEventArgs e)
{
// Get an array of available codecs.
ImageCodecInfo[] myCodecs;
myCodecs = ImageCodecInfo.GetImageEncoders();
int numCodecs = myCodecs.GetLength(0);
//numCodecs = 1;
// Set up display variables.
Color foreColor = Color.Black;
Font font = new Font("Arial", 8);
int i = 0;
// Check to determine whether any codecs were found.
if(numCodecs > 0)
{
// Set up an array to hold codec information. There are 9
// information elements plus 1 space for each codec, so 10 times
// the number of codecs found is allocated.
string[] myCodecInfo = new string[numCodecs*10];
// Write all the codec information to the array.
for(i=0;i<numCodecs;i++)
{
myCodecInfo[i*10] = "Codec Name = " + myCodecs[i].CodecName;
myCodecInfo[(i*10)+1] = "Class ID = " +
myCodecs[i].Clsid.ToString();
myCodecInfo[(i*10)+2] = "DLL Name = " + myCodecs[i].DllName;
myCodecInfo[(i*10)+3] = "Filename Ext. = " +
myCodecs[i].FilenameExtension;
myCodecInfo[(i*10)+4] = "Flags = " +
myCodecs[i].Flags.ToString();
myCodecInfo[(i*10)+5] = "Format Descrip. = " +
myCodecs[i].FormatDescription;
myCodecInfo[(i*10)+6] = "Format ID = " +
myCodecs[i].FormatID.ToString();
myCodecInfo[(i*10)+7] = "MimeType = " + myCodecs[i].MimeType;
myCodecInfo[(i*10)+8] = "Version = " +
myCodecs[i].Version.ToString();
myCodecInfo[(i*10)+9] = " ";
}
int numMyCodecInfo = myCodecInfo.GetLength(0);
// Render all of the information to the screen.
int j=20;
for(i=0;i<numMyCodecInfo;i++)
{
e.Graphics.DrawString(myCodecInfo[i],
font,
new SolidBrush(foreColor),
20,
j);
j+=12;
}
}
else
e.Graphics.DrawString("No Codecs Found",
font,
new SolidBrush(foreColor),
20,
20);
}
Public Sub GetImageEncodersExample(ByVal e As PaintEventArgs)
' Get an array of available codecs.
Dim myEncoders() As ImageCodecInfo
myEncoders = ImageCodecInfo.GetImageEncoders()
Dim numEncoders As Integer = myEncoders.GetLength(0)
Dim strNumEncoders As String = numEncoders.ToString()
Dim foreColor As Color = Color.Black
Dim font As New Font("Arial", 8)
Dim i As Integer = 0
' Get the info. for all encoders in the array.
If numEncoders > 0 Then
Dim myEncoderInfo(numEncoders * 10) As String
For i = 0 To numEncoders - 1
myEncoderInfo((i * 10)) = "Codec Name = " _
+ myEncoders(i).CodecName
myEncoderInfo((i * 10 + 1)) = "Class ID = " _
+ myEncoders(i).Clsid.ToString()
myEncoderInfo((i * 10 + 2)) = "DLL Name = " _
+ myEncoders(i).DllName
myEncoderInfo((i * 10 + 3)) = "Filename Ext. = " _
+ myEncoders(i).FilenameExtension
myEncoderInfo((i * 10 + 4)) = "Flags = " _
+ myEncoders(i).Flags.ToString()
myEncoderInfo((i * 10 + 5)) = "Format Descrip. = " _
+ myEncoders(i).FormatDescription
myEncoderInfo((i * 10 + 6)) = "Format ID = " _
+ myEncoders(i).FormatID.ToString()
myEncoderInfo((i * 10 + 7)) = "MimeType = " _
+ myEncoders(i).MimeType
myEncoderInfo((i * 10 + 8)) = "Version = " _
+ myEncoders(i).Version.ToString()
myEncoderInfo((i * 10 + 9)) = " "
Next i
Dim numMyEncoderInfo As Integer = myEncoderInfo.GetLength(0)
' Render to the screen all the information.
Dim j As Integer = 20
For i = 0 To numMyEncoderInfo - 1
e.Graphics.DrawString(myEncoderInfo(i), font, _
New SolidBrush(foreColor), 20, j)
j += 12
Next i
Else
e.Graphics.DrawString("No Encoders Found", font, _
New SolidBrush(foreColor), 20, 20)
End If
End Sub
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