C#

<SomeValue IsNull="false" >blah</SomeValue>
<SomeValue IsNull="false" />
<SomeValue IsNull="true" />

Member 3147279 wrote:

have an image with a number.. I need process the image and extract the number

Bitmap bmp = new Bitmap(ofd.FileName);
Bitmap bmp_backColor = new Bitmap(bmp.Width, bmp.Height);
for (int x = 0; x < bmp.Width; x++)
{
    for (int y = 0; y < bmp.Height; y++)
    {
        Color tmp_oldColor = bmp.GetPixel(x, y);
        if (tmp_oldColor != Color.Transparent)
        {
            Color tmp_newColor = Color.FromArgb(tmp_oldColor.A, 255, 0, 0);
            bmp_backColor.SetPixel(x, y, tmp_newColor);
        }
    }
}
Graphics m_gr = Graphics.FromImage(bmp_backColor);
m_gr.DrawImage(bmp, 0, 0, bmp.Width, bmp.Height);
m_gr.Dispose();

pictureBox1.BackgroundImage = bmp_backColor;

Xmen wrote:

Color tmp_newColor = ??; // how to get new color ? Multiply, Add ?

regards

PandemoniumPasha wrote:

Color tmp_newColor = Color.Green;or Color.FromArgb(....)or Color.FromName(...)or Color.FromKnownName(...)choose whatever...

PandemoniumPasha wrote:

one more thing, you are using GetPixel and SetPixel which are extremely slow. try using LockBits() and UnlockBits() for speed.

Lodeclaw wrote:

I'm writing that involves creating new rows in a table that has no primary key and two foreign keys

Lodeclaw wrote:

followed up by a number of similar new rows in the same listbox

Lodeclaw wrote:

I'm also not sure then how to associate the datarow with it's respective item in the listbox

Lodeclaw wrote:

use it to delete the row it's associated with from the datatable

Thomas Stockwell wrote:

I have no clue how this would be set through C# programming though.

eMOx wrote:

with any key which ı set key