Bitmap.Bitmap(Type, String) Constructor
Assembly: System.Drawing (in system.drawing.dll)
This constructor combines the namespace of the given type with the string name of the resource and looks for a match in the assembly manifest. For example you can pass in the Button type and Button.bmp to this constructor and it will look for a resource named System.Windows.Forms.Button.bmp.
The following code example demonstrates how to construct a bitmap from a type, and how to use the Save method. To run this example, paste the code into a Windows Form. Handle the form’s Paint event and call the ConstructFromResourceSaveAsGif method, passing e as PaintEventArgs
private: void ConstructFromResourceSaveAsGif(PaintEventArgs^ e) { // Construct a bitmap from the button image resource. Bitmap^ bmp1 = gcnew Bitmap(Button::typeid, "Button.bmp"); String^ savePath = Environment::GetEnvironmentVariable("TEMP") + "\\Button.bmp"; try { // Save the image as a GIF. bmp1->Save(savePath, System::Drawing::Imaging::ImageFormat::Gif); } catch (IOException^) { // Carry on regardless } // Construct a new image from the GIF file. Bitmap^ bmp2 = nullptr; if (File::Exists(savePath)) { bmp2 = gcnew Bitmap(savePath); } // Draw the two images. e->Graphics->DrawImage(bmp1, Point(10, 10)); // If bmp1 did not save to disk, bmp2 may be null if (bmp2 != nullptr) { e->Graphics->DrawImage(bmp2, Point(10, 40)); } // Dispose of the image files. delete bmp1; if (bmp2 != nullptr) { delete bmp2; } }
private void ConstructFromResourceSaveAsGif(PaintEventArgs e)
{
// Construct a bitmap from the button image resource.
Bitmap bmp1 = new Bitmap(Button.class.ToType(), "Button.bmp");
// Save the image as a GIF.
bmp1.Save("c:\\button.gif", System.Drawing.Imaging.ImageFormat.get_Gif());
// Construct a new image from the GIF file.
Bitmap bmp2 = new Bitmap("c:\\button.gif");
// Draw the two images.
e.get_Graphics().DrawImage(bmp1, new Point(10, 10));
e.get_Graphics().DrawImage(bmp2, new Point(10, 40));
// Dispose of the image files.
bmp1.Dispose();
bmp2.Dispose();
} //ConstructFromResourceSaveAsGif
Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.