Problem with Image drawing in C#

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Okay so here's what's going on. Basically, I just discovered that C# is drawing my Images 10 x 10 pixels bigger than they're supposed to be. Here's what happened:

So I was exploring by making a simple program of a drawing of a head that moves and turns in the direction you press an arrow key. Everything was fine until I tried telling it to stop at the edges of the form, it would always go 10 pixels past the border.

Now I assumed I was doing something wrong until I couldn't find anything wrong with my code so I just added 10 to my if conditions and left it at that.

Now here's when I found out. I decided to draw a rectangle the size of my image (32 x 30), and draw it in the exact same spot that my image is drawn in, and I discovered that my rectangle is 10 x 10 smaller than my image on the form.

What's going on? I even proved my theory in a fresh program to make sure none of my other code is somehow interfering with it :'(

Now I'll admit, I've been REALLY tired today and I just woke up from a nap, so stupid errors may be occurring.

Please let me know what could be happening guys, thanks in advance :)

Posted 8-Oct-10 10:41am

Raztor0

Updated 8-Oct-10 10:44am

v3

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Toli Cuturicu · Answer 1 · 2010-10-08T11:38:00

Solution 1

What Graphics.PageUnit are you using? Are you absolutely sure it's GraphicsUnit.Pixel?
If not, set it!
Are you using Graphics.DrawImage or Graphics.DrawImageUnscaled?

Off topic: Why is the Image 32x30? People ususlly use 32x32 for something this big...

Posted 8-Oct-10 11:38am

Toli Cuturicu

Updated 8-Oct-10 11:46am

v4

Chris Trelawny-Ross · Answer 2 · 2010-10-08T11:39:00

Solution 2

Would you please share the relevant source code so we can see what you're doing / how you're doing it. Then we may be able to help.

Posted 8-Oct-10 11:39am

Chris Trelawny-Ross

Raztor0 · Answer 3 · 2010-10-08T17:25:00

Sure, here's the code:

g.DrawRectangle(new Pen(Color.Black), new Rectangle(an.getCharHeadLoc().X, an.getCharHeadLoc().Y, an.getCurHeadPic().Width, an.getCurHeadPic().Height));

g.DrawRectangle(new Pen(Color.Black), new Rectangle(an.getCharHeadLoc().X, an.getCharHeadLoc().Y, an.getCurHeadPic().Width + 10, an.getCurHeadPic().Height + 10));

The first line is me drawing a rectangle with the dimensions of the image, and placing it where the image is located, and the second line is me drawing a rectangle 10x10 bigger than the width and the height, and only this rectangle surrounds the image perfectly.

My problem is that C# is drawing the image too big for some reason :(

Oh, additionally, here's the code I'm using to draw the image onto the form:

g.DrawImage(an.getCurHeadPic(), an.getCharHeadLoc())