SaveToFile (C++)

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Description

This example converts a specified icon to a bitmap. To run this example, add an image, a button, and an Open dialog to a form. Name the button ConvertIcon2Bitmap, and add the following code as its OnClick event handler.


Code

#include <memory>       //For STL auto_ptr class

void __fastcall TForm1::ConvertIcon2BitmapClick(TObject *Sender)
{
  OpenDialog1->DefaultExt = ".ICO";
  OpenDialog1->Filter = "icons (*.ico)|*.ICO";
  OpenDialog1->Options << ofOverwritePrompt << ofFileMustExist << ofHideReadOnly;
  if (OpenDialog1->Execute())
  {
	std::auto_ptr<TIcon> pi(new Graphics::TIcon);
	String as;
	pi->LoadFromFile(OpenDialog1->FileName);
	as = ChangeFileExt(OpenDialog1->FileName,".BMP");
	Image1->Width = pi->Width;
	Image1->Height = pi->Height;
	Image1->Canvas->Draw(0, 0, pi.get());
	Image1->Picture->SaveToFile(as);
	ShowMessage(OpenDialog1->FileName + " Saved to " + as);
  }
}

Uses

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