Re: Source Code of a Simple Calculator - C / C++ / MFC Discussion Boards

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Re: GDI+

AJ1239-Nov-01 3:07

AJ123

9-Nov-01 3:07

Thanks, did see your reply , though it didn't really help me much, i tend to find message that are posted a few pages back tend to get ignored . Had a look at your tutorial to.

I recognise i have to use the Graphics class, i wrote the following code to try and manipulate an image from a file, as a start basis.

//Source Image
Image* image = new Image(L"c:\\test.bmp");

Graphics* imageGraphics = Graphics::FromImage(image);

Pen* blackpen= new Pen(Color(0, 0, 0, 0), 10);

Point point1(0, 0);
Point point2(100, 300);

// Draw A line.
imageGraphics->DrawLine(blackpen, point1, point2);

imageGraphics->Flush(FlushIntentionSync);

// Get the CLSID of the JPG
if (GetEncoderClsid(L"image/jpeg", &encoderClsid) == -1)
MessageBox("No suitable encoder");

MessageBox("About to save");
stat = image->Save(L"c:\\conv.jpg", &encoderClsid, NULL);
MessageBox("Done");

if(stat != Ok)
{
//Have A Failure Log
char err[255];
wsprintf(err,"%d", stat);

MessageBox("Failure: stat = ");
}

delete blackpen;
delete imageGraphics;
delete image;

GdiplusShutdown(gdiplusToken);

Thanks Again, must start and try and hekp out on the forum myself!

Rich

Re: GDI+

AJ12310-Nov-01 4:28

AJ123

10-Nov-01 4:28

The reason the above code didn't draw a line on the saved image, was because of the encoder, if i was drawing on a jpeg and saving to a jpeg. It would of.

As for my image conversion routine. I ended up having to use a 'Bitmap' object in order to create a new image, this was done through passing the contructor a HBITMAP. Couldn't see how you could create a new image in GDI+ anyother way???

Cheers
Rich

Source Code of a Simple Calculator

8-Nov-01 18:51

Hi,
I am engaged in a project ,now I require some source
code of a simple( not scientific) calcutor to speed up
my process in this project.Who can help me?
You can send it to my Email ,fengrux@hotmail.com

regards.