Bitmap::FromHicon Method (IntPtr)

 

Creates a Bitmap from a Windows handle to an icon.

Namespace:   System.Drawing
Assembly:  System.Drawing (in System.Drawing.dll)

public:
static Bitmap^ FromHicon(
	IntPtr hicon
)

Parameters

hicon
Type: System::IntPtr

A handle to an icon.

Return Value

Type: System.Drawing::Bitmap^

The Bitmap that this method creates.

The following code example is designed for use with Windows Forms, and it requires PaintEventArgse, which is a parameter of the Paint event handler. The code performs the following actions:

  • Gets the handle to an existing icon image.

  • Creates a Bitmap from the handle.

  • Draws the Bitmap to the screen.

private:
	[System::Runtime::InteropServices::DllImportAttribute("user32.dll", CharSet = CharSet::Unicode)]
   static IntPtr LoadImage( int Hinstance, String^ name, int type, int width, int height, int load );

private:
   void Hicon_Example( PaintEventArgs^ e )
   {

      // Get a handle to an icon.
      IntPtr Hicon = LoadImage( 0, "smile.ico", 1, 0, 0, 16 );

      // Create a Bitmap object from the icon handle.
      Bitmap^ iconBitmap = Bitmap::FromHicon( Hicon );

      // Draw the Bitmap object to the screen.
      e->Graphics->DrawImage( iconBitmap, 0, 0 );
   }

SecurityPermission

for calling into unmanaged code. Related enumeration: UnmanagedCode

.NET Framework
Available since 1.1
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