Copy Save Bitmap Image to file C++

[jamesspears]

Hello. I am trying to copy and save the contents of a Bitmap class image to a *.bmp file but currently receive Unhandled Exceptions during run-time of the console program. I would be grateful to learn where the error lies and how to fix this program. Thank you.

Below is the main part of the code in the Main program:

Bitmap^ imageTest;
String^ path = "C:\\ImageScan.bmp";
imageTest = gcnew Bitmap(path, true); // Actual image to be copied.

Bitmap^ imageTestCopy;
String^ path2 = "C:\\ImageScan2.bmp"; //'blank canvas' identical size to imageTest
imageTestCopy = gcnew Bitmap(path2, true);


int x = 0;
int y = 0;

for (x = 0; x < imageTest->Width; x++) // Loop through the image pixels
{
    for (y = 0; y < imageTest->Height; y++)
    {
        Color pixelColor = imageTest->GetPixel(x, y);
        imageTestCopy->SetPixel(x, y, pixelColor);
    }
}

imageTestCopy->Save("c:\\ImageScanCopy3.bmp"); //save image to new file

[VictorN]

[moved from Visual C++ forum]

[VictorN]

Hello. I am trying to copy and save the contents of a Bitmap class image to a *.bmp file but currently receive Unhandled Exceptions during run-time of the console program.

It would be helpful if you posted the exact Exceptions message.
Did you debug your code? Then you could find the line that caused the exception.

Besides, it is not a good idea to create/write to the file in the root of C: drive. In the most of the systems it is not allowed for the non-admin users.

[jamesspears]

It would be helpful if you posted the exact Exceptions message.
Did you debug your code? Then you could find the line that caused the exception.

Besides, it is not a good idea to create/write to the file in the root of C: drive. In the most of the systems it is not allowed for the non-admin users.

Hello. The run-time error I was getting was:

"An unhandled exception of type 'System.Runtime.InteropServices.ExternalException' occurred in System.Drawing.dll Additional information: A generic error occurred in GDI+."

And this error occurred at the line

imageTestCopy->Save("c:\\BrainScanCopy3.bmp"); //save image to new file

But I changed the path from "c:\\ImageScanCopy3.bmp" to another (folder is still located inside C:\\) and it works now. Thank you for your help.

[VictorN]

You are welcome!